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Hitachi 51SWX20B Training
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Hitachi 51SWX20B Training

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See also: Service Manual , Operating Manual
CONTENTS...
Dec 2004 (ver g)
2002 DP-2X Chassis Projection Television Information
INSTRUCTOR... Alvie Rodgers C.E.T. (Chamblee, GA.)
Training Materials Prepared by: ALVIE RODGERS C.E.T.
2002 and 2003
MODEL RELEASE
DIGITAL
HD READY PTV
Chassis
Model #
Aspect
DP-27
51SWX20B 16X9
57SWX20B
65SWX20B
DP-27D
57TWX20B 16X9
65TWX20B
DP-26
65XWX20B 16X9
57XWX20B
51XWX20B
DP-24
43FWX20B 16X9
DP-23G
57GWX20B 16X9
51GWX20B
DP-23K
46F500
16X9
DP-23
57UWX20B 16X9
57F500
57G500
51UWX20B
51F500
51G500

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  • Page 1 Dec 2004 (ver g) Training Materials Prepared by: ALVIE RODGERS C.E.T. 2002 and 2003 MODEL RELEASE DIGITAL HD READY PTV Chassis Model # Aspect DP-27 51SWX20B 16X9 57SWX20B 65SWX20B DP-27D 57TWX20B 16X9 65TWX20B DP-26 65XWX20B 16X9 57XWX20B 51XWX20B DP-24 43FWX20B 16X9...
  • Page 2 THIS PAGE LEFT BLANK...
  • Page 3 Materials prepared by Dec 2004 DP-2X TABLE OF CONTENTS (ver f) Alvie Rodgers C.E.T. TOPICS PAGE SECTION (1) POWER SUPPLY DIAGRAMS: • +6V Lo Voltage Regulation Circuit Diagram Explained ------------------------------------------ 01-01 • +6V Lo Voltage Regulation Circuit Diagram ------------------------------------- 01-02 DP-26 and DP-27 •...
  • Page 4 Materials prepared by Dec 2003 DP-2X TABLE OF CONTENTS (ver g) Alvie Rodgers C.E.T. TOPICS PAGE SECTION (3) VIDEO CIRCUIT INFORMATION: (Continued) • Rainforest IC Pulse Explanation Explained -------------------------------------------------------- 03-12 • ABL Circuit Diagram Explanation ------------------------------------------------------------------- 03-13 • ABL Circuit Diagram ---------------------------------------------------------------------------------- 03-14 •...
  • Page 5 Materials prepared by Dec 2003 DP-2X TABLE OF CONTENTS (ver f) Alvie Rodgers C.E.T. TOPICS PAGE SECTION (7) ADJUSTMENT INFORMATION (Continued): • DCU Crosshatch Phase Settings ------------------------------------------------------------------- 07-05 • Horizontal Position (Coarse) Adjustment --------------------------------------------------------- 07-06 • Raster Tilt Adjustment ------------------------------------------------------------------------------- 07-07 •...
  • Page 6 Materials prepared by Dec 2003 DP-2X TABLE OF CONTENTS (ver f) Alvie Rodgers C.E.T. TOPICS PAGE SECTION (8) MISCELLANEOUS INFORMATION: • Rear Panel DP-27 and DP-27D (Terminal Input) Drawing -------------------------------------- 08-01 • Rear Panel DP-23 and DP-23G (Terminal Input) Drawing -------------------------------------- 08-02 •...
  • Page 7 POWER SUPPLY INFORMATION DP-2X CHASSIS DIAGRAMS SECTION 1...
  • Page 8 THIS PAGE LEFT BLANK...
  • Page 9 DP-2X +6V POWER SUPPLY REGULATION EXPLANATION +6V Power Supply Circuit Diagram explanation: The Primary Chassis Discussed is the DP-27 and DP-27D. (See DP-26, DP-27 and DP-27D +6V Regulation Circuit Diagram for details). (Also, see DP-23, DP-23G and DP-24 +6V Regulation Circuit Diagram for details). Note: Items described below for the DP-23, 23G and DP-24 are shown in brackets [ ].
  • Page 10 DP-26, DP-27 and DP-27D CHASSIS POWER SUPPLY Sby +6V REGULATION Lo Voltage Power Supply T902 R913 Start Up D904 R906 D901 R907 D905 D910 16.3V Osc B+ 150V D907 R911 F902 R914 I901 C916 Driver/ R912 Output IC D906 C914 FB/OLP T901 R908...
  • Page 11 DP-23, DP- 23G and DP-24 Chassis +6.0 V Low Voltage Regulation T901 R913 D904 R906 Start Up D901 R907 D905 D910 16.3V C911 D907 R911 150V Osc B+ F902 I901 R914 C916 C913 Driver/ D906 Output IC R912 C914 FB/OLP T901 R908 R916...
  • Page 12 DP-2X POWER ON RELAY CONTROLS EXPLANATION Relay Controls Circuit Diagram explanation: (See DP-23, DP-23G, DP-24 and DP-27, DP-27D Relay Controls Circuit Diagram for details) POWER ON: When the Customer presses the Power On button on the Front control panel or the Remote control, the Micro- processor I001 output a High from pin 59.
  • Page 13 DP-2X POWER ON RELAY CONTROLS EXPLANATION RELAYS ENERGIZED BY Q907: Activated by Power _1 • S901 This completes the path for AC to reach the High Voltage power supply bridge diode D902. (See the High Voltage Regulation Circuit for details). This action start the High Voltage power supply SW+115V for the deflection circuit.
  • Page 14 PAGE 01-06...
  • Page 15 PAGE 01-07...
  • Page 16 PAGE 01-08...
  • Page 17 DP-2X LOW VOLTAGE POWER SHUT DOWN EXPLANATION Low Voltage Power Supply Shut Down Circuit Diagram explanation: (See DP-27 Signal Power Supply (Low Voltage) Shut-Down Circuit Diagram for details) The Low Voltage power supply is centered around the Switching Transformer T901 and I901. This power supply creates the Standby voltages SBY +5V which runs anytime the set is plugged into an AC out- let.

  • Page 18: Specific Information

    Shut-Down Signal Figure 2 EXCESSIVE CURRENT DETECTION (See Figure 3) One very common circuit used in many Hitachi tele- 0.47 vision products is the B+ Excessive Current Sensing circuit. In this circuit is a low ohm resistor in series with the particular power supply, (labeled B+ in the Current Sensor drawing).

  • Page 19: Shut Down Circuit

    DP-2X LOW VOLTAGE POWER SHUT DOWN EXPLANATION current condition caused by monitoring the current through the internal Switch MOS FET, the voltage will rise and pin 5 has an internal Over Voltage detection op-amp. If this voltage rises enough to trigger this op- amp, the IC will stop producing a drive signal.
  • Page 20 DP-2X LOW VOLTAGE POWER SHUT DOWN EXPLANATION SW –28V Loss Detection • Monitored by (D937) See additional Shut Down Circuit Diagram for details From the Deflection Circuit PPD3 connector pin 6. Vertical B+ 28V Voltage Excessive Current Detection • Monitored by (Q604) See Deflection Protect Power Supply Shutdown Diagram for details. Excessive High Voltage Detection •...
  • Page 21 DP-2X SIGNAL POWER SUPPLY (Low Voltage) SHUT-DOWN CIRCUIT T901 D941 R906 D904 R907 D905 Control +6V 16.97V R913 C955 C911 D907 16.3V D952 I901 Power IC R956 R919 I905 47 Ohm C919 Q901 R920 Monitors R922 Q902 SW +5V Q910 SW +3.3V SW +2.5V D962...
  • Page 22 DP-2X SW +115V POWER SUPPLY REGULATION EXPLANATION Hi-Voltage Power Supply Circuit Diagram explanation: (See DP-27 Chassis Power Supply SW+115V Regulation Circuit Diagram for details) THIS POWER SUPPLY RUNS ONLY WHEN THE SET IS TURNED ON: TURNING ON THE SW +115V POWER SUPPLY: When the Set is turned on, the Microprocessor I001 Outputs a Power On command via pin 59.
  • Page 23 DP-2X CHASSIS POWER SUPPLY SW +115V REGULATION High Voltage Power Supply T902 7.5P/P SW + 115V Start Up R930 D911 R937 R924 R925 From Relay S901 D914 16.3V I906 R935 Osc B+ D912 R931 R932 D915 Regulator Photocoupler RED L.E.D. I902 R934 D913...
  • Page 24 SW +115V EXCESSIVE CURRENT DETECTION (See Figure 1) R941 0.47 One very common circuit used in many Hitachi tele- SW +115V vision products is the B+ Excessive Current Sensing circuit. In this circuit is a low ohm resistor in series Current Sensor with the SW +115V.
  • Page 25 DP-2X ADDITIONAL POWER SUPPLY SHUT DOWN DIAGRAM C933 R941 E907 T902 D915 Q905 Deflection B+ 115V 0.47 Ohm R945 C927 R942 R943 Deflection B+ (115V) C945 Excessive Voltage Det. R946 D924 D927 Deflection B+ (115V) D928 Excessive Current Det. D925 R944 C946 Deflection B+ 115V...
  • Page 26 DP-2X PROTECT SHUTDOWN CIRCUIT EXPLANATION Protect Shut Down Circuit Diagram explanation: (See DP-27 Protect Shut Down Diagram for details) Use this explanation and Diagram in conjunction with the following diagram, DP-2X Signal Power Supply (Low Voltage) Shut Down Circuit (PROTECT _DEF) The following circuits are routed to the Lo Voltage Shut Down Circuit through connection point (PROTECT _DEF) depicted on the Circuit drawing: EXCESSIVE HIGH VOLTAGE DETECTION...
  • Page 27 DP-2X DEFLECTION PROTECT POWER SUPPLY SHUTDOWN DIAGRAM Hi Volt Flyback RH32 allows ABL fluctuations to H. Drive manipulate the Trigger Point of Shut High Voltage Down as screen brightness varies. ABL TH01 Sensing Circuit ABL Voltage is inverse proportionate to brightness. RH23 Too High Det.
  • Page 28 DP-2X LED (Visual Trouble Detection) CIRCUIT EXPLANATION LED Used for Visual Trouble Shooting Circuit Diagram explanation: (See DP-2X LED (Visual Trouble Detection) Diodes Signal Power Supply Diagram for details) 5 LEDS, 4 GREEN AND 1 RED In the DP-2X chassis, there are 5 total LEDs that can be used for Visual Trouble shooting. 4 Green and 1 Red. Use these LEDs to determine if the set is experiencing a problem.
  • Page 29 DP-23, DP-23G and DP-24 CHASSIS L.E.D. (Visual Troubleshooting) Low Voltage Power Supply (5 Total L.E.D. for visual trouble sensing , 4 Green and 1 Red) S-902 Audio Power PPS5 Supply Relay D944 GREEN L.E.D. T901 1.55A L922 E911 1.30A Audio + 29V R985 C962 R992...
  • Page 30 DP-26 CHASSIS L.E.D. (Visual Trouble Detection) Diodes Signal Power Supply (5 Total L.E.D. for visual trouble sensing observation, 4 Green and 1 Red) S-902 Audio Power PPS5 Supply Relay D944 GREEN L.E.D. 1.55A T901 L922 E911 1.55A Audio + 38V R985 C962 R992...
  • Page 31 DP-27/D CHASSIS L.E.D. (VISUAL TROUBLE DETECTION) DIODES SIGNAL POWER SUPPLY (5 Total L.E.D. for visual trouble sensing observation, 4 Green and 1 Red) S-902 Audio Power PPS5 Supply Relay D944 GREEN L.E.D. 1.55A T901 L922 E911 1.55A Audio + 38V R985 C962 R992...
  • Page 32 NOTES...

  • Page 33: Microprocessor Information

    MICROPROCESSOR INFORMATION DP-2X CHASSIS DIAGRAMS SECTION 2...
  • Page 34 THIS PAGE LEFT BLANK...
  • Page 35 DP-2X MICROPROCESSOR DATA COMMUNICATIONS CIRCUIT EXPLANATION PinP Tuner U302 (monaural only, but audio not used). The Microprocessor controls the Main Tuner by SDA2 (Data) and SCL2 (Clock) I C communication lines. SCL2 and SDA2 lines for the Main Tuner are output from the Microprocessor at pins (31 SDA2 and 28 SCL2) respectively.
  • Page 36 DP-2X MICROPROCESSOR DATA COMMUNICATIONS CIRCUIT EXPLANATION ON THE TERMINAL PWB: (Through the connector PST2) A/V Selector IX01 The A/V Selector IC is responsible for selecting the input source for the Main Picture as well as the source for the PinP or Sub picture. Communication from the Microprocessor via pins (30 SDA1 and 29 SCL1) to the PST2 connector pins (5 and 4) respectively then to IX01 pins (34 and 33) respectively.
  • Page 37 PAGE 02-04...
  • Page 38 PAGE 02-05...
  • Page 39 DP-2X MICROPROCESSOR NTSC SYNC INPUT CIRCUIT EXPLANATION Microprocessor NTSC Sync circuit diagram. (See DP-2X Chassis NTSC Sync to Microprocessor Signal Path Diagram for Details) The Microprocessor I001 must have Sync inputs from the Chassis to Lock it’s generation of OSD, Closed Cap- tion, Customer’s Menu, Service Menu, etc…..
  • Page 40 See Component Sync Separation Circuit Diagram Aux Inputs PAGE 02-07...
  • Page 41 See Component Sync Separation Circuit Diagram Aux Inputs PAGE 02-08...
  • Page 42 See Component Sync Separation Circuit Diagram Aux Inputs PAGE 02-09...
  • Page 43 VIDEO INFORMATION DP-2X CHASSIS DIAGRAMS SECTION 3...
  • Page 44 THIS PAGE LEFT BLANK...
  • Page 45 DP-2X NTSC VIDEO SIGNAL PATH CIRCUIT EXPLANATION (See DP-2X Chassis Video Signal Path-NTSC Circuit Diagram for details) It’s important to note that this Chassis horizontal deflection operates at 33.75Khz at all times. Even though this is twice as fast as NTSC, the set will still display NTSC video with no problem. This is accomplished by the Flex Converter. The Flex Con- verter will manipulate any input, be it NTSC, Component 480i, 480P, 720P, 1080i to the appropriate Horizontal Frequency rate of 33.75Khz.
  • Page 46 DP-2X NTSC VIDEO SIGNAL PATH CIRCUIT EXPLANATION (Continued from page 03-01) COMPOSITE VIDEO PATH: When a composite input is selected, it must be broken down into it respective parts, Y and C. This is accomplished for the Main video by the 3D Y/C and for the PinP (Sub) picture by the 2-Line Comb filter. MAIN: The Main composite output is routed out of the Selector IC IX01 pin 44 to QX13.
  • Page 47 See the DP-2X Chassis Video Signal Path- NTSC, Component, OSD for continuation PAGE 03-03...
  • Page 48 See Component Signal Path PAGE 03-04...
  • Page 49 See the DP-2X Chassis Video Signal Path- NTSC, Component, OSD for continuation PAGE 03-05...
  • Page 50 DP-2X CHASSIS VIDEO SIGNAL PATH-NTSC, COMPONENT, OSD CIRCUIT EXPLANATION (See the Chassis Video Signal Path-NTSC, Component, OSD for details) (See Video Signal Path-NTSC Circuit Diagram for details about NTSC) It’s important to note that this Chassis horizontal deflection operates at 33.75Khz at all times. Even though this is twice as fast as NTSC, the set will still display NTSC video with no problem.
  • Page 51 DP-2X CHASSIS VIDEO SIGNAL PATH-NTSC, COMPONENT, OSD CIRCUIT EXPLANATION Switch IZ02 pin 30. • The Main Cr/Pr component is output from the pin 40 through QX22 into the Main Video/Chroma Y Pr/ Pb Switch IZ02 pin 28. • The Main Cb/Pb component is output from the pin 42 through QX23 into the Main Video/Chroma Y Pr/ Pb Switch IZ02 pin 29.
  • Page 52 PAGE 03-08...
  • Page 53 PAGE 03-09...
  • Page 54 FLEX CONVERTER PAGE 03-10...
  • Page 55 DP-2X RAINFOREST IC INFORMATION (I401) YM/P-MUTE/ SCP IN FBP IN Max 9V 6.2 ~ 9V Blanking 3.7 ~ 9V CLAMP 2.4 ~ 5.8V P Mute H-AFC 3.0V 1.7 ~ 3.3V BLK 1.5V Black Peak 0.9 ~ 2.1V Half Tone 0 ~ 0.5V Internal Pin 17 Pin 24 Pin 52...
  • Page 56 Block Diagram of UD2002 ATSC / QAM / IEEE1394 Interface Module Front-End Board Memory Card Board BCM3510 RAM for IF circuit VSB/QAM 256QAM Memory Memory Demodulator Card I/F Card Main Board Memory Card I/F Digital Tuner 64MB ATSC SDRAM CATV TC90A55TB Optical RF IN...
  • Page 57 DP-2X ABL CIRCUIT EXPLANATION (See ABL Circuit Diagram for details) The ABL voltage is generated from the ABL pin (3) of the Flyback transformer TH01. The ABL pull-up resis- tors are RH27 and RH28. They receive their pull up voltage from the SW +115V B+ line for Deflection gener- ated from the Power Supply.
  • Page 58 PAGE 03-14...
  • Page 59 PAGE 03-15...
  • Page 60 DP-2X AUDIO VIDEO MUTE CIRCUIT EXPLANATION (See DP-2X Series Chassis Audio Video Mute Circuit Diagram for details) There are times in which the main picture and audio must be muted. This can be because of changing channels where the noise between stations is unacceptable, same thing for Auto Programming channels. When the deflec- tion circuit malfunctions, etc…...
  • Page 61 DP-2X AUDIO VIDEO MUTE CIRCUIT EXPLANATION AUDIO MUTE PATH: Labeled as V MUTE 2: See the Mute Activation circuit explained previously. When Q441 collector is high, the base of Q440 is high. This turns it on and supplies a high from the emitter. This high is routed to the following circuits;...
  • Page 62 R555 PAGE 03-18...
  • Page 63 PAGE 03-19...
  • Page 64 DP-2X COMPONENT SYNC CIRCUIT EXPLANATION (See DP-2X Series Chassis Main/Component Sync Separation Signal Path for details) This diagram shows the route for sync utilized when the set has selected Component inputs. IX02 Main Y Pr/Pb Selector: The Component inputs are Component 1 at pin 59 and Component 2 at pin 5. The Y component for NTSC is in- put at pin 53.
  • Page 65 Flex Converter PAGE 03-21...
  • Page 66 THIS PAGE LEFT BLANK...

  • Page 67: Audio Information

    AUDIO INFORMATION DP-2X CHASSIS DIAGRAMS SECTION 4...
  • Page 68 THIS PAGE LEFT BLANK...
  • Page 69 DP-2X AUDIO CIRCUIT EXPLANATION (See DP-2X Chassis Audio (Main-Terminal) Signal Path for details) IX01 AUDIO VIDEO SELECTOR IC: The main Audio path is delivered to the Audio/Video Selector IC IX01 to the following pins; 62 (Left) and 64 (Right): This is the Audio input from the Main Tuner U301. The integrated Tuner has an Inter- nal Audio decoding circuit that outputs Lt (Left Total) from pin 26 and Rt (Right Total) from pin 27.
  • Page 70 QA07 PAGE 04-02...
  • Page 71 DEFLECTION INFORMATION DP-2X CHASSIS DIAGRAMS SECTION 5...
  • Page 72 THIS PAGE LEFT BLANK...
  • Page 73 DP-2X HORIZONTAL DRIVE CIRCUIT EXPLANATION HORIZONTAL DRIVE CIRCUIT DIAGRAM DESCRIPTION: (Use the DP-2X Horizontal Drive Circuit Diagram for details) CIRCUIT DESCRIPTION When B+ arrives at the Rainforest IC I401 pin (19), horizontal drive is output from pin (26). The drive signal is routed through the connector PSS2, PPD2 pin 8 to the Horizontal Driver Transistor Q709.

  • Page 74: General Information

    GENERAL INFORMATION: The DP-2X deflection circuit differs from analog Hitachi projection televisions. It utilizes in a sense, two hori- zontal output circuits. One for Deflection and one for High Voltage. This allows for better deflection stabilization and is not influenced by fluctuations of the High Voltage circuit which may cause unacceptable breathing and side pulling of the deflection.
  • Page 75 SW HVcc PAGE 05-03...
  • Page 76 DP-2X IH01 HIGH VOLTAGE DRIVER IC WAVEFORM AND VOLTAGES IH01 NORMAL OPERATION: Pin 1 = 6.80V with Color Bar, Varies with Brightness levels. Pin 2 = 11.72V Pin 3 = 0.59V Pin 4 = 2.47V Pin 5 = 1.60V Pin 6 = 10.58V Pin 7 = 0.0V POUT UVLO...
  • Page 77 DP-2X SWEEP LOSS DETECTION CIRCUIT EXPLANATION (See DP-2X Sweep Loss Detection Circuit for details) The key component in the Sweep Loss Detection circuit is QN02. This transistor is normally biased off. When the base becomes 0.6V below the emitter, it will be turned on, causing the SW +9V to be applied to two different circuits, the Spot circuit and the High Voltage Drive circuit.
  • Page 78 DP-2X SWEEP LOSS DETECTION CIRCUIT DN13 SW+9V RN09 RN12 RN11 From Power Vertical Blanking DN08 Supply Circuit QN05 From Pin 11 I601 QN04 Diagram RN13 CN03 V. Blk. DN06 SW+7V CN04 RN14 DN07 DN14 24V P/P RN18 RN02 RN08 QN02 CN02 RN03 DN03...

  • Page 79: Trigger Pulse

    DP-2X VERTICAL OUTPUT CIRCUIT EXPLANATION (See the DP-2X Series Chassis Vertical Output Circuit for details) I601 B+: The Vertical Output IC I601 requires SW+28V to operated. This voltage is supplied from the Power Supply. The output for the SW+28V pulse is from pin 14 of T902. This power supply is protected by E902, rectified by D918, filtered by C929, L913, C950 and output from the PPD6 connector pin 1 and 2.
  • Page 80 PAGE 05-08...

  • Page 81: X-Ray Protect

    DP-2X SIDE PINCUSHION CIRCUIT EXPLANATION (See the DP-2X Side Pincushion Circuit for details) Due to the nature of deflection, the sides of the picture has a tendencies to pull in similar to an hour glass. The Side pincushion circuit is responsible for manipulating deflection to compensate. This is accomplished by super imposing a vertical parabolic waveform on the DC voltage utilized for Horizontal Size.
  • Page 82 PAGE 05-10...

  • Page 83: Digital Convergence Information

    DIGITAL CONVERGENCE INFORMATION DP-2X CHASSIS DIAGRAMS SECTION 6...
  • Page 84 THIS PAGE LEFT BLANK...
  • Page 85 DP-2X DIGITAL CONVERGENCE INTERFACE CIRCUIT EXPLANATION See DP-2X Chassis Digital Convergence Interconnection Circuit Diagram for details. The Digital Convergence circuit is responsible for maintaining proper convergence of all three colors being pro- duced by the CRTs. Many different abnormalities can be quickly corrected by running Magic Focus. The Digital convergence Interconnect Diagram depicts how the Digital Convergence Circuit is interfaced with the rest of the Projection’s circuits.
  • Page 86 DP-2X DIGITAL CONVERGENCE INTERFACE CIRCUIT EXPLANATION data represents a specific correction signal for that specific location. When the Service Technician makes any adjustment, the new information must be stored in memory, EEPROM. The EEPROM only stores the 117 differ- ent adjustment points data, the SRAM interpolates to come up the additional 139 adjustment points for a total of 256 per color.

  • Page 87: Infrared Receiver

    DP-2X DIGITAL CONVERGENCE INTERFACE CIRCUIT EXPLANATION EXPLANATION OF THE DIGITAL CONVERGENCE INTERCONNECT DIAGRAM: INFRARED RECEIVER: During normal operations, the IR receiver directs it signal to the Main Microprocessor where it interprets the in- coming signal and performs a predefined set of operations. However, when the Service Only Switch is pressed, the Main Microprocessor must ignore remote control commands.
  • Page 88 DP-2X DIGITAL CONVERGENCE INTERFACE CIRCUIT EXPLANATION MICROPROCESSOR: The Microprocessor is only involved in the Digital Convergence circuit related to disabling IR (Infrared Remote Control Signals). When the DCU is put into the Digital Convergence Adjustment Mode (DCAM) or Magic Fo- cus, the Microprocessor ignores IR pulses.
  • Page 89 To CRTs To Green Convergence Yokes To Red Convergence Yokes To Blue Convergence Yokes MAG SW Out PAGE 06-05...
  • Page 90 To CRTs To Green Convergence Yokes To Red Convergence Yokes To Blue Convergence Yokes MAG SW Out PAGE 06-06...
  • Page 91 CURSOR LEFT CURSOR RIGHT BLUE Select GREEN Select 13X9 Mode INFO 3X3 Mode (5 Times) (5 Times) RED Select 7X5 Mode (5 Times) VID1 VID2 VID3 VID4 ASPECT VIRTUAL HD VID5 CALCULATION HITACHI PHASE *VCR MODE ONLY CLU-4321UG PAGE 06-07...
  • Page 92 VIDEO REMOVE COLOR CORRECTION BUTTONS SELECT VID 3 CENTERING CALCULATE PIP CH FREEZE RASTER POSITION INITIALIZE PIP ACCESS SWAP VIDEO PIP-MODE PIP MODE + PIP CH READ OLD ROM DATA PRESS (2X) WRITE TO PRESS (2X) HITACHI CLU-5721TSI PAGE 06-08...
  • Page 93 VIDEO REMOVE COLOR CORRECTION BUTTONS SELECT VID 3 CENTERING CALCULATE PIP CH FREEZE RASTER POSITION INITIALIZE PIP ACCESS SWAP VIDEO PIP-MODE PIP MODE + PIP CH READ OLD ROM DATA PRESS (2X) WRITE TO PRESS (2X) HITACHI CLU-5722TSI PAGE 06-09...
  • Page 94 NOTE: Aspect may not be correct but dimensions are correct. DIGITAL CONVERGENCE OVERLAY DIMENSIONS 43 inch OVERLAY DIMENSIONS NORMAL MODE H. SIZE 76.5 76.5 76.5 76.5 76.5 76.5 76.5 76.5 76.5 76.5 25.7 34.5 69.1 69.1 69.1 69.1 Centering Offset 69.1 PART NUMBER H312271 69.1...
  • Page 95 NOTE: Aspect may not be correct but dimensions are correct. DIGITAL CONVERGENCE OVERLAY DIMENSIONS 46 inch OVERLAY DIMENSIONS NORMAL MODE 1018 H. SIZE 18.2 81.8 81.8 81.8 81.8 81.8 81.8 81.8 81.8 81.8 81.8 18.2 25.7 37.0 74.0 74.0 74.0 74.0 Centering Offset 74.0...
  • Page 96 NOTE: Aspect may not be correct but dimensions are correct. DIGITAL CONVERGENCE OVERLAY DIMENSIONS 51SWX20B, 51UWX20B, 51GWX20B, 51XWX20B OVERLAY DIMENSIONS NORMAL MODE 1129 H. SIZE 19.7 90.8 90.8 90.8 90.8 90.8 90.8 90.8 90.8 90.8 90.8 19.7 30.5 41.0 82.0 82.0...
  • Page 97 NOTE: Aspect may not be correct but dimensions are correct. DIGITAL CONVERGENCE OVERLAY DIMENSIONS 57SWX20B, 57TWX20B, 57UWX02B, 57GWX20B, 57XWX20B OVERLAY DIMENSIONS NORMAL MODE 1262 H. SIZE 22.0 101.5 101.5 101.5 101.5 101.5 101.5 101.5 101.5 101.5 101.5 22.0 34.1 45.8 91.7 91.7 91.7...
  • Page 98 NOTE: Aspect may not be correct but dimensions are correct. 65SWX20B, 65TWX20B, 65XWX20B OVERLAY DIMENSIONS NORMAL MODE 1439 H. SIZE 25.3 115.7 115.7 115.7 115.7 115.7 115.7 115.7 115.7 115.7 115.7 19.7 38.6 52.1 104.6 104.6 104.6 104.6 Centering Offset 104.6 104.6 PART NUMBER H312274...
  • Page 99 ADJUSTMENT INFORMATION DP-2X CHASSIS DIAGRAMS SECTION 7...
  • Page 100 THIS PAGE LEFT BLANK...
  • Page 101 DP-2X CHASSIS ADJUSTMENT ORDER It is necessary to follow an order when doing adjustments in the DP-2X chassis. DP-2X SERVICE ADJUSTMENT ORDER “PREHEAT BEFORE BEGINNING” Order Adjustment Item Screen Format Signal DCU Data Pre HEAT (30 Minutes) Normal Mode NTSC Cut Off Normal Mode NTSC...
  • Page 102 DP-2X CHASSIS PRE-HEAT RUN ADJUSTMENTS PRESET EACH 3. Focus VR on focus pack. Pre Set fully clockwise. ADJUSTMENT VR TO CONDITION AS SHOWN: FOCUS VR 1. Before Pre Heat Run. Enter I C Service Menu. Pre-set the Green DRV Allow set to operate at and Red DRV to 3F.

  • Page 103: Adjustment Preparation

    DP-2X CHASSIS CUT-OFF (SCREENS) ADJUSTMENT 2) Set R DRV (COOL) to 8) Repeat for the other two ADJUSTMENT colors. center data value (3F). PREPARATION: Pre Heat Run should be 3) Set G DRV (COOL) to 9) Exit SERVICE by press- •...
  • Page 104 DP-2X CHASSIS PRE-FOCUS ADJUSTMENT 2) Adjust the Focus VR for ADJUSTMENT Red until Focus is PREPARATION: NOTE: A) Pre Heat Run should be achieved. (A Fine Adjust- • PTSR connector on RED finished. ment will be made later.) CRT PWB. 3) Repeat for Blue and •...

  • Page 105: Normal Mode

    DP-2X CHASSIS DCU CROSSHATCH PHASE ADJUSTMENT adjustment mode). *DCA stands for (Digital Adjustment Preparation: • Cut Off adjustment should 6) Adjust data value using Convergence Adjustment) be finished. the keys indicated in the • Video Control: Brightness chart, until the data 90%, Contrast Max.
  • Page 106 DP-2X CHASSIS HORIZONTAL PHASE (COARSE) ADJUSTMENT 4) Mark the center of the NOTE: To enter the I C Bus Adjustment Preparation: • Video Control: Brightness Digital Convergence alignment menu, with Power 90%, Crosshatch Pattern with Off, press the INPUT button •...
  • Page 107 DP-2X CHASSIS TILT (RASTER INCLINATION) ADJUSTMENT Adjustment Preparation: Adjustment Procedure : BLUE: • The set can face any direc- 6) Remove cover or PTS GREEN: tion. 1) Apply covers to the RED short from BLUE and • Receive the Cross-Hatch and BLUE lenses or short cover the RED CRT.
  • Page 108 DP-2X CHASSIS BEAM ALIGNMENT ADJUSTMENT 2) Put Green (G) tube beam align- Red and Blue in the same way. Preparation for adjustment: • Pre Heat, Pre-optical focus, DCU ment magnet to the cancel state 9) Red (R) focus on focus pack. as shown in Figure 1.
  • Page 109 DP-2X CHASSIS RED AND BLUE RASTER OFF SET ADJUSTMENT INFORMATION: Raster Off set is necessary to conserve Memory allocation. It is very important to remember that the Red is off-set Left of Center and Blue is off-set Right of center. Please use the following information to accurately offset Red and Blue from center.

  • Page 110: Vertical Size

    DP-2X VERTICAL SIZE ADJUSTMENT VERTICAL SIZE: 3) Select GREEN (A/CH) NOTE: Centering magnet 1) Receive an NTSC signal. may be moved to facilitate. and press the MENU but- 2) With Power Off, press the ton to remove Red and Distance is important, not Service Only switch on the Blue.

  • Page 111: Horizontal Size

    DP-2X HORIZONTAL SIZE ADJUSTMENT HORIZONTAL SIZE: the Service Only Switch, the DCAM. (Digital Conver- picture will toggle between gence Adjustment Mode.) (Display Mode NORMAL) Install the correct Overlay. Video mode and DCU Grid. • Input an NTSC Signal. Project only the Green NOTE: On the DP-26, DP- •...
  • Page 112 DP-2X BEAM FORM ADJUSTMENT BEAM SHAPE (FORM) 5) Also adjust the Red and Blue Preparation for adjustment Adjustments procedure: CRT beam shapes according to 1) Green CRT beam shape adjust- the steps (1) to (4). • IMPORTANT: Screen format ment. 6) After the adjustment is com- 2) Short-circuit 2P sub-mini con- pleted, return R, G and B static...
  • Page 113 DP-2X LENS FOCUS ADJUSTMENT 2) (See Figure 1) Loosen the 4) After completing optical Preparation for adjustment fixing screw on the lens focus, tighten the fixing • Receive the Cross-hatch assembly so that the lens screws for each lens. pattern signal. cylinder can be turned.

  • Page 114: Focus Adjustment

    DP-2X STATIC FOCUS ADJUSTMENT ADJUSTMENT FOCUS ADJUSTMENT: 2) Adjust the Focus VR for 1) Short the 2pin sub- Red until maximum Focus PREPARATION: Pre Heat Run should be miniature connector on the is achieved. • finished. 3) Repeat for Blue and CRT PWB (PTS), to remove any color not Green.
  • Page 115 Press the Cursor Left and Right ADJ. LEVEL Button to change the ADJ. ADJ. NOISE DISP. PHASE MOT ADJ. DISP Data as follows; 77 for HITACHI H. BLK-RV • DATA VALUES CONFIRMA- H. BLK-GV TION: H. BLK-BV Use the Cursor Up and Down H.
  • Page 116 DP-2X CHASSIS MAGIC FOCUS “PATTERN SET UP” Press the; and Down buttons to change NOTE: This instruction should the Pattern Position Data in be applied when a new DCU is A/V NET key (all but DP-24) • being replaced. VID2 in (CBL/SAT) (DP-24) Vertical Direction.
  • Page 117 DP-2X DIGITAL CONVERGENCE OVERLAY DIMENSIONS 43FWX20B DP-23 Only OVERLAY DIMENSIONS NORMAL MODE NOTE: Aspect may not be correct but dimensions are correct. H. SIZE 76.5 76.5 76.5 76.5 76.5 76.5 76.5 76.5 76.5 76.5 25.7 34.5 69.1 69.1 69.1 69.1 Centering Offset 69.1 69.1...
  • Page 118 NOTE: Aspect may not be correct but dimensions are correct. DIGITAL CONVERGENCE OVERLAY DIMENSIONS 51SWX20B, 51UWX20B, 51GWX20B, 51XWX20B OVERLAY DIMENSIONS NORMAL MODE 1129 H. SIZE 19.7 90.8 90.8 90.8 90.8 90.8 90.8 90.8 90.8 90.8 90.8 19.7 30.5 41.0 82.0 82.0...
  • Page 119 NOTE: Aspect may not be correct but dimensions are correct. DIGITAL CONVERGENCE OVERLAY DIMENSIONS 57SWX20B, 57TWX20B, 57UWX02B, 57GWX20B, 57XWX20B OVERLAY DIMENSIONS NORMAL MODE 1262 H. SIZE 22.0 101.5 101.5 101.5 101.5 101.5 101.5 101.5 101.5 101.5 101.5 22.0 34.1 45.8 91.7 91.7 91.7...
  • Page 120 NOTE: Aspect may not be correct but dimensions are correct. 65SWX20B, 65TWX20B, 65XWX20B OVERLAY DIMENSIONS NORMAL MODE 1439 H. SIZE 25.3 115.7 115.7 115.7 115.7 115.7 115.7 115.7 115.7 115.7 115.7 19.7 38.6 52.1 104.6 104.6 104.6 104.6 Centering Offset 104.6 104.6 PART NUMBER H312274...
  • Page 121 CURSOR LEFT CURSOR RIGHT BLUE Select GREEN Select 13X9 Mode INFO 3X3 Mode (5 Times) (5 Times) RED Select 7X5 Mode (5 Times) VID1 VID2 VID3 VID4 ASPECT VIRTUAL HD VID5 CALCULATION HITACHI PHASE *VCR MODE ONLY CLU-4321UG PAGE 07-21...
  • Page 122 VIDEO REMOVE COLOR CORRECTION BUTTONS SELECT VID 3 CENTERING CALCULATE PIP CH FREEZE RASTER POSITION INITIALIZE PIP ACCESS SWAP VIDEO PIP-MODE PIP MODE + PIP CH READ OLD ROM DATA PRESS (2X) WRITE TO PRESS (2X) HITACHI CLU-5721TSI PAGE 07-22...
  • Page 123 DP-27 & DP-27D REMOTE CONTROL CLU-5722 TSI (P/N HL01822) 51SWX20B, 57SWX20B, 65SWX20B, 57TWX20B, 65TWX20B POWER SOURCE WIZARD CURSOR UP TAPE CURSOR DOWN CURSOR LEFT CURSOR RIGHT RED (7 X 5) RASTER PHASE SLEEP INFO GREEN (3 X 3) A/V NET...
  • Page 124 3) READ FROM OLD ROM DATA: 4) In any Hitachi Digital convergence set, the The below adjustments are very critical to the Old ROM data can be re-read to place the complete alignment process and CAN NOT unit into the last saved condition.
  • Page 125 DP-2X DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Complete Digital Convergence Alignment Center the Overlay Jig geometrically on the screen Receive any NTSC signal (Crosshair if possible) Set SCREEN FORMAT TO NORMAL mode Clear RAM data (DCU RAM) Service only switch Internal Press and hold the SERVICE ONLY is on the Digital "Cross S W I T C H , t h e n p r e s s t h e P O W E R...
  • Page 126 DP-2X DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Static Centering Alignments (Moves Entire Raster) Press EXIT 5 times to return to DCU Grid. Internal Cross Hatch Signal selected Press the Remote F REEZE button (extra lines will appear at top and bottom ) Extra Lines appear indicating...
  • Page 127 DP-2X DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Convergence 3x3 Point Adjustment Mode (Green Coarse Alignment) Press the Remote INFO button to enter the Green Adjustment Mode (The 3X3 Mode can only be entered when Press the Remote INFO the DCU RAM button 5 times to enter the data is cleared) 3X3 Adjustment Mode INFO Button is...
  • Page 128 DP-2X DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Before Calculation Press the Remote VID 3 button to Calculate points in between the adjustment points. Calculation averages the error between the points to prevent "S" Distortion Convergence 3x3 Mode (9 Point) Adjustment (Red / Blue Coarse Alignment) After interpolation, press the Remote 0 button to select the Red Convergence Adjustment Mode Green always...
  • Page 129 DP-2X DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Convergence 7x5 Point Adjustment (Green Only Alignment) Remote Press the Remote 0 button five times to enter the 7X5 mode If selected Color isn't already Red, it will take 6 presses of 0 button Selects the 7X5 mode Remote Press the Remote INFO button...
  • Page 130 DP-2X DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Remote Convergence 7x5 Point Adjustment (Red/Blue Alignment) Press the Remote 0 button to project the Red/Green Crosshatch Press the Remote Cursor and 2,4,5,6 SELECT buttons to perform convergence point adjustment at every other intersection of the crosshatch Perform Cursor Blinks adjustment at...
  • Page 131 DP-2X DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Convergence 13X9 Point Adjustment (Green Only Alignment) Press the Remote ANT button five times to enter the 13X9 mode Remote If selected Color isn't already Pressed 5 times, Blue, it will take 6 presses Selects the of Source button 13X9 mode Remote...
  • Page 132 DP-2X DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Convergence 13X9 (117 Point) Remote Adjustment (Red/Blue Alignment) Press the Remote " 0 " button to enter RED Adjustment Mode and to project the Red/Green Crosshatch P r e s s t h e R e m o t e C u r s o r a n d 2 , 4 , 5 , 6 b u t t o n s t o p e r f o r m convergence point adjustment at Perform...
  • Page 133 DP-2X DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Store New Convergence Data in ROM Press the Remote PIP MODE button twice to save the data to ROM mode = STORE ROM WRITE? This screen is projected at the first press of PIP MODE button Screen goes blank for several seconds at the second push of the PIP MODE button...
  • Page 134 DP-2X DIGITAL CONVERGENCE ALIGNMENT PROCEDURES DP-2X DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Magic Focus Sensor Initialization Press the Remote PIP MODE button once PIP CH FREEZE ROM WRITE? PIP MODE SWAP VIDEO Again the screen projects ROM WRITE at the first press of PIP MODE button Press the Remote PIP CH button to begin the Initialization Mode This screen appears with a series of...
  • Page 135 DP-2X DIGITAL CONVERGENCE ALIGNMENT PROCEDURES Convergence Touchup Overlays NOT required! Convergence Point Adjustment. NTSC (Normal). Enter the Service Mode by pressing the Service Only Switch on Power/Deflection PWB. Press "0" five times to select the 7X5 Mode Press "ANT" five times to select the 13X9 Mode Note: 3X3 mode can not be entered without clearing RAM data.

  • Page 136: Sensor Position

    MAGIC FOCUS ERROR CODES FOR THE DP-2X CHASSIS CONVERGENCE ERRORS: If an error message or code appears while performing MAGIC FOCUS or initialize (PIP MODE and PIP CH in Digital Convergence Adjustment Mode, follow this confirmation and repair method. 1) Turn on Power and receive any signal. 2) Press the Service Only Switch on the Convergence Output PWB.
  • Page 137 DP-2X BLUE DE-FOCUS ADJUSTMENT 1mm on each side equal- Adjustment Preparation: Adjustment Procedure ing 2mm total. See figure • Video Control: Brightness 1) Receive any NTSC cross- Below. 90%, Contrast Max. hatch signal. • SCREEN FORMAT should 2) Turn the B FOCUS VR be PROGRESSIVE mode.
  • Page 138 DP-2X WHITE BALANCE and SUB BRIGHTNESS ADJUSTMENT that input using the VID but- remote to Exit Service Adjustment Conditions: • Cut Off and Blue Defocus tons on the remote or front Menu. must be complete. control panel. • High brightness white balance 5) Turn the Brightness and Remember: When adjusting the •...
  • Page 139 DP-2X WHITE BALANCE ADJUSTMENT FLOW CHART START CUT OFF ADJUSTMENT BLUE DEFOCUS ADJUSTMENT SUB BRIGHT ADJUSTMENT ADJUST Hi LIGHT W/B Repeat two or three times ADJUST Lo LIGHT W/B until no adjustment is necessary. SUB BRIGHT ADJUSTMENT CHECK If NOT OK Lo LIGHT W/B Hi LIGHT W/B If OK...
  • Page 140 DP-2X SUB PICTURE AMPLITUDE ADJUSTMENT Preparation for Adjustment Adjustment Procedure Enter I C adjustment Menu. Press Menu and scroll through [a] Sub Brightness adjust- 1) Go to I C adjustment pages until TA1270-M appears. ment should be finished. Mode. [b] Start adjustment 20 min- 2) Press “MENU”...
  • Page 141 DP-2X HORIZONTAL POSITIONS (FINE) ADJUSTMENT 4) Exit from the I C Menu. NOTE: To enter the I C Bus Adjustment Preparation: • Video Control: Brightness alignment menu, with Power 90%, Off, press the INPUT button 1080i 16X9 Standard Mode • Contrast Max.
  • Page 142 DP-2X MAGNET AND YOKE LOCATION DP-2X MAGNETS Adjustment Points FRONT GREEN BLUE (1) Centering magnet RED (5) Beam Alignment magnets (2) Centering magnet GREEN (6) Focus Block Assembly RED, GREEN & BLUE (3) Centering magnet BLUE FOCUS CONTROLS (4) Beam Form Magnets Also: SCREEN CONTROLS for RED, GREEN &...

  • Page 143: Miscellaneous Information

    MISCELLANEOUS INFORMATION DP-2X CHASSIS DIAGRAMS SECTION 8...
  • Page 144 THIS PAGE LEFT BLANK...
  • Page 145 DP-23 / 23G REAR PANEL 51UWX20B, 57UWX20B DP-23 CHASSIS 51GWX20B, 57GWX20B DP-23G CHASSIS ANT A DVI-HDTV INPUT 1 (MONO/L) Converter AUDIO Y/VIDEO INPUT 2 ANT B (MONO/L) AUDIO (MONO/L) VIDEO S-VIDEO INPUT 3 AUDIO TO HI-FI (MONO/L) VIDEO S-VIDEO CENTER INPUT 4 VIDEO S-VIDEO...

  • Page 146: Rear Panel

    DP-24 REAR PANEL 43FWX20B DP-24 CHASSIS ANT A INPUT 1 (MONO/L) Converter AUDIO Y/VIDEO INPUT 2 ANT B (MONO/L) AUDIO (MONO/L) VIDEO S-VIDEO INPUT 3 AUDIO TO HI-FI (MONO/L) VIDEO S-VIDEO CENTER INPUT 4 VIDEO S-VIDEO MONITOR AUDIO PAGE 08-02...
  • Page 147 DP-26 REAR PANEL 65XWX20B, 57XWX20B and 51XWX20B ANT A DVI-HDTV OPTICAL OUT Digital Audio INPUT 1 (MONO/L) Converter IEEE 1394 AUDIO Y/VIDEO Multi Media Card ANT B INPUT 2 (MONO/L) AUDIO S-VIDEO (MONO/L) VIDEO INPUT 3 AUDIO TO HI-FI S-VIDEO (MONO/L) VIDEO CENTER...
  • Page 148 DP-27 / 27D REAR PANEL 51SWX20B, 57SWX20B, 65SWX20B DP-27 CHASSIS 57TWX20B, 65TWX20B DP-27D CHASSIS ANT A DVI-HDTV INPUT 1 (MONO/L) Converter AUDIO Y/VIDEO INPUT 2 ANT B (MONO/L) AUDIO (MONO/L) VIDEO S-VIDEO INPUT 3 AUDIO TO HI-FI (MONO/L) VIDEO S-VIDEO...
  • Page 149 DP-2X SIGNAL PWB PJIG PRST PFH1 PFH2 EH7P PH2P PH10P EH2P I401 I001 DIGITAL TERMINAL MODULE DP-26 Only FLEX CONTROL MAIN PinP TUNER TUNER U303 DP-23/G DP-26 DP-27/D U301 U302 REAR VIEW PAGE 08-05...
  • Page 150 DP-2X DEFLECTION PWB CONVERGENCE V Size Adj SERVICE SWITCH H Size Adj SK01 PPD1 PADJ R711 R607 IK01 I601 QK01 PPD2 DIGITAL CONVERGENCE PDF1 UNIT UKDG PPD3 PDS1 QF01 PPD6 Q777 D708 IK04 T702 RH17 HV ADJ GREEN DO NOT TH01 ADJ.
  • Page 151 DP-2X POWER SUPPLY PWB D928 D940 S903 +28V E906 D964 +6V SW SW +9V AUDIO SW DM SW S902 E907 S906 S905 +35 SW D965 AUDIO E904 E902 +29V 12WX2 +28V E905 +39V 20WX2 +220V E903 E912 E909 DM+10V +10V E901 E911 -28V...

  • Page 152: Focus Pack

    DP-2X CRT PWBs P802 (Cathode) P801 E801 P852 (Cathode) GREEN P851 E851 FOCUS PACK P8A2 (Cathode) BLUE P8A1 E8A1 PAGE 08-08...
  • Page 153 DP-X ALL BUT DP-24 FRONT CONTROL PWB PAGE 08-09...
  • Page 154 DP-24 FRONT CONTROL PWB REMOTE DIMMER CONTROL CONTROL RECEIVER LIGHT RECEIVER POWER POWER INPUT/ MENU EXIT SELECT VOL- VOL+ CH- CH+ MAGIC FOCUS PAGE 08-10...

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