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Panasonic PT-51HX42CF Service Manual
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Panasonic PT-51HX42CF Service Manual

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Service Manual
This simplified service manual is issued to add models of the P7 family listed above to the main service manual order
No. MTNC020411C1 (PT-47WX52F). Included in this manual are unique characteristics and a complete parts list.
"WARNING! This Service Manual is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to
service or repair the product or products dealt with in this Service Manual by anyone else could result in serious injury or death."
The service technician is required to read and follow the "Safety Precautions" and "Important Safety Notice" in the Main Manual.
Simplified Manual
Models
PT-51HX42F
PT-51HX42CF
Copyright 2002 by Matsushita Electric Corporation of
America. All rights reserved. Unauthorized copying
and distribution is a violation of law.
®
ORDER NO. MTNC020413A1
B2
HDTV MONITOR
(P7)
Panasonic
Chassis
EP824
EP824

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Summary of Contents for Panasonic PT-51HX42CF

  • Page 1 Chassis PT-51HX42F EP824 PT-51HX42CF EP824 This simplified service manual is issued to add models of the P7 family listed above to the main service manual order No. MTNC020411C1 (PT-47WX52F). Included in this manual are unique characteristics and a complete parts list.
  • Page 2 Important safety notice Special components are used in this projection television which are important for safety. These components are identified on the schematic diagram by the symbol and printed in BOLD TYPE on the replacement part list. It is essential that these critical parts are replaced with the manufacturer’s specified replacement part to prevent x-ray radiation, shock, fire or other hazards.
  • Page 3 About lead free solder (PbF) Note: Lead is listed as (Pb) in the periodic table of elements. In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder. The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu). That is Tin (Sn), Silver (Ag) and (Cu) although other types are available.
  • Page 4 Important safety tests Measuring H.V. 4. Connect a H.V. meter (static type, class 0.1) with high voltage leads to high voltage distributor The anode caps are cemented to the CRTs. To gain on FBT. (See figure 4) access for high voltage measurement, remove the red CRT’s anode lead from the flyback transformer distributor.
  • Page 5 Notes about format aspect switching (WX 16:9 or HX 4:3) and adjustments Widescreen 16:9 and non-widescreen 4:3 PTVs use the same light box, for this reason is important to set it to the correct version (16:9 or 4:3). To change the format please refer to figure 62 on page 43 on main manual order No MTNC020409C1.

  • Page 6: Table Of Contents

    Important safety notice ....2 CRT set up......15 Safety precautions .
  • Page 7 Service notes Note: These components are affixed with glue. Be careful not to break or damage any foil under the component or at the pins of the ICs when removing. Usually applying heat to the component for a short time while twisting with tweezers will break the component loose. Leadless chip component How to replace Flat-IC (surface mount)
  • Page 8 Service notes (continued) IMPORTANT: To protect against possible damage to the solid state devices due to arcing or static discharge, make certain that all ground wires and CRT DAG wire are securely connected. CAUTION: The power supply circuit is above earth ground and the chassis cannot be polarized.
  • Page 9 Feature table FEATURE PT-51HX42F PT-51HX42CF Chassis Number of channels Menu language Eng/Span/Fr Closed caption (CC) V-Chip (USA/CANADA) Picture in Picture (PIP) 2T split Remote control number EUR7603Z30 Screen protector W/PROT SCRN Comb filter ADV 3D Y/C (NEW) Color temp NEW YNR...
  • Page 10 Boards designation BOARD PART NUMBER BOARD DESCRIPTION A-Board TNP2AH035 signal processing D-Board TNPH0371 power and deflection LB-Board TNP2AA110 blue driver LG-Board TNP2AA111 green driver LR-Board TNP2AA112 red driver G-Board TNP2AA088 front A/V panel K-Board TNP2AA087 front button panel R-Board TNPA0615AB IR receiver Table 2: Boards designation Note: The A-Board ( TNP2AH035 ) is non-serviceable.
  • Page 11 PTV - Location of controls POWER VOLUME CHANNEL ACTION TV/VIDEO Figure 5. Location of controls PTV Quick reference control operation Quick reference control operation Power - Press to turn ON or OFF. Volume - Press to adjust sound level, or to adjust audio menus, video menus, and select operating features when menus are displayed Channel - Press to select programmed channels.
  • Page 12 Remote - location of controls POWER Button Press to turn ON and OFF. MUTE Button Press to mute sound. A second press resumes sound. Press also to access and delete Closed Caption display. TV, VCR, DVD, CBS/CBL Component function buttons VOL (volume) Buttons Press to adjust TV sound level.
  • Page 13 Disassembly for Service Note: Board ground wires may have to be disconnected to disassemble some boards. All ground wires must be reconnected using jumper leads, if necessary, before power is applied to PTV for service. Speaker Grille Removal 2. Remove (3) screws from around the A/V terminal board (marked with arrows).
  • Page 14 Disassembly for Service (Continued) Cabinet Front Removal Screen Assembly (figure 10) (figure 11) 1. First remove the Speaker Grill and the center 1. First remove the Front Cabinet (See Front Cabinet cover, then remove the keyboard, then remove the Removal procedure) bottom back cover and then the top back cover.
  • Page 15 PTV Note: 1080i, 480p, 480i pattern can be obtained from ON to prevent damage to the horizontal Panasonic’s TU-DST51 set-top box DTV output transistor and/or CRTs. decoder. 1. Connect test generator to the antenna terminal and 1.
  • Page 16 51” Models: 1039mm horizontal X 779mm vertical. Note: A convergence alignment template, part number TXFQD01ESER1 for 51” ( same as for 47” ), is available through Matsushita/Panasonic Services. Center Important note: In order to prevent any possible damage on the CRT’s (burning), do not keep the PTV turned on,...
  • Page 17 480i-p (same for interlace guide. & progressive), 1080i and ZOOM 480i. A 1080i, 480p, 480i pattern can be obtained from Panasonic’s TU-DST51 Quick entry to service mode: set-top box DTV decoder. When minor adjustments need to be done to the...
  • Page 18 Table of the service adjustment item available for each format Format Signal Formated 480i 480p 1080i MTSIN INPUT LEVEL SEPAL LOW LEVEL SEPARATION SEPAH HIGH LEVEL SEPARATION CLOCK CLOCK CLOCK VIDEO COLOR COLOR TINT TINT BRIGHT SUB-BRIGHTNESS CONT SUB-CONTRAST B-G_Y MAGENTA TINT ADJ R-Y_A YELLOW TINT ADJ...
  • Page 19 Format Signal Formated 480i 480p 1080i CONV MUTE DIGITAL CONV (ON/OFF) COARS COARSE ADJUSTMENT FINE FINE ADJUSTMENT H-PAR HORIZONTAL PARABOLA V-SAW VERTICAL SAW V-PAR VERTICAL PARABOLA OTHER --------------- ---------------- LIMIT ---------------- W POS ---------------- Note: PTV detects automatically the format of the input signal (480i, 480p or 1080i) - 19 - Service Manual...
  • Page 20 480i Service mode (electronic controls) a. Press Note: Registers marked as FIXED are factory preset, buttons on the remote control to select any of the default value must not be changed the seven service sub adjustment addresses. (“a” in figure 16) b.
  • Page 21 a. Press Note: Registers marked as FIXED are factory preset, buttons on the remote control to select any of the default value must not be changed the seven service sub adjustment addresses. (“a” in figure 16) b. Press Important note: Write down the original values (“b”...
  • Page 22 480p Service mode (electronic controls) a. Press Note: Registers marked as FIXED are factory preset, buttons on the remote control to select any of the default value must not be changed the seven service sub adjustment addresses. (“a” in figure 16) b.
  • Page 23 a. Press Note: Registers marked as FIXED are factory preset, buttons on the remote control to select any of the default value must not be changed the seven service sub adjustment addresses. (“a” in figure 16) b. Press Important note: Write down the original values (“b”...
  • Page 24 1080i Service mode (electronic controls) a. Press Note: Registers marked as FIXED are factory preset, buttons on the remote control to select any of the default value must not be changed the seven service sub adjustment addresses. (“a” in figure 16) b.
  • Page 25 a. Press Note: Registers marked as FIXED are factory preset, buttons on the remote control to select any of the default value must not be changed the seven service sub adjustment addresses. (“a” in figure 16) b. Press Important note: Write down the original values (“b”...
  • Page 26 REPLACEMENT PARTS LIST Models: PT-51HX42F, PT-51HX42CF Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION C513 ECQF4103JZH CAP,P .01UF-J-400V...
  • Page 27 REPLACEMENT PARTS LIST Models: PT-51HX42F, PT-51HX42CF Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION C803 ECKCNA222ME7 CAP,C 2200PF-M-125V...
  • Page 28 REPLACEMENT PARTS LIST Models: PT-51HX42F, PT-51HX42CF Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION D339 MA188TA5 DIODE...
  • Page 29 REPLACEMENT PARTS LIST Models: PT-51HX42F, PT-51HX42CF Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION L303 ELESN6R8JA COIL, PEAKING 6.8UH...
  • Page 30 REPLACEMENT PARTS LIST Models: PT-51HX42F, PT-51HX42CF Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION Q938 2SA720ARTA TRANSISTOR...
  • Page 31 REPLACEMENT PARTS LIST Models: PT-51HX42F, PT-51HX42CF Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION R398 ER0S2THF3300 RES,M 330-F-1/4W...
  • Page 32 REPLACEMENT PARTS LIST Models: PT-51HX42F, PT-51HX42CF Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION R809 ERJ6GEYJ225V RES,M 2.2M-J-1/10W...
  • Page 33 REPLACEMENT PARTS LIST Models: PT-51HX42F, PT-51HX42CF Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION R1516 ERJ6GEYJ101V RES,M 100-J-1/10W...
  • Page 34 DESCRIPTION OF ABBREVIATIONS GUIDE RESISTOR CAPACITOR TYPE TOLERANCE TYPE TOLERANCE Carbon ± 1% Ceramic ± 0.25pF Fuse ± 5% Electrolytic ± 0.5pF Metal Oxide ± 10% Polyester ± 1pF Solid ± 20% Styrol ± 5% Wire Wound ± 2% Tantalum ±...
  • Page 35 Notes: IMPORTANT SAFETY NOTICE CHIP TRANSISTOR THIS SCHEMATIC DIAGRAM INCORPORATES SPECIAL LEAD DESIGNATION FEATURES THAT ARE IMPORTANT FOR PROTECTION FROM X-RADIATION, FIRE AND ELECTRICAL SHOCK HAZARDS. WHEN SERVICING ESSENTIAL THAT ONLY MANUFACTURERS SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS DESIGNATED WITH A IN THE SCHEMATIC.
  • Page 36 Notas NOTA DE SEGURIDAD DIAGRAMAS ELÉCTRICOS INCLUYEN CARACTERÍSTICAS ESPECIALES MUY IMPORTANTES IDENTIFICACIÓN DE TERMINALES PARA TRANSISTORES EN CHIP PARA PROTECCIÓN CONTRA RAYOS-X, QUEMADURAS Y DESCARGAS ELÉCTRICAS. CUANDO SERVICIO IMPORTANTE USAR PARA REEMPLAZO COMPONENTES CRITICOS, SOLO PARTES ESPECIFICADAS POR EL FABRICANTES. LOS COMPONENTES CRITICOS ESTAN SEÑALADOS EN LOS DIAGRAMAS POR EL SIMBOLO NOTAS DE LOS DIAGRAMAS...
  • Page 37 K-Board layout K-Board schematic - 37 - K-Board...
  • Page 38 G-Board layout G-Board schematic G-Board - 38 -...
  • Page 39 NOTES: - 39 -...
  • Page 40 ® Printed in USA K02042127PL0508...
  • Page 41 ORDER NO. MTNC020411C1 Service Manual HDTV MONITOR Main Manual (P7W) Panasonic Models Chassis PT-47WX52F EP824 PT-47WX52CF EP824 PT-47WX42F EP824 PT-47WX42CF EP824 This service manual is issued as a service guide for the models of the P7W family listed above. Included in this manual are a set of schematics, alignment procedures, disassembly procedures and a complete parts list.

  • Page 42: Important Safety Notice

    Important safety notice Special components are used in this projection television which are important for safety. These components are identified on the schematic diagram by the symbol and printed in BOLD TYPE on the replacement part list. It is essential that these critical parts are replaced with the manufacturer’s specified replacement part to prevent x-ray radiation, shock, fire or other hazards.

  • Page 43: About Lead Free Solder (Pbf)

    About lead free solder (PbF) Note: Lead is listed as (Pb) in the periodic table of elements. In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder. The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu). That is Tin (Sn), Silver (Ag) and (Cu) although other types are available.

  • Page 44: Important Safety Tests

    Important safety tests Measuring H.V. 4. Connect a H.V. meter (static type, class 0.1) with high voltage leads to high voltage distributor The anode caps are cemented to the CRTs. To gain on FBT. (See figure 4) access for high voltage measurement, remove the red CRT’s anode lead from the flyback transformer distributor.

  • Page 45: Notes About Format Aspect Switching

    About format aspect switching(WX 16:9 or HX 4:3) Widescreen 16:9 and non-widescreen 4:3 PTVs use the same light box, for this reason is important to set it to the correct version (16:9 or 4:3). To change the format please refer to figure 62 on page 43.
  • Page 46 Important safety notice ....2 NTSC ZOOM Vertical size adjustment (VSIZE)... . . 26 Safety precautions .

  • Page 47: Service Notes

    Service notes Note: These components are affixed with glue. Be careful not to break or damage any foil under the component or at the pins of the ICs when removing. Usually applying heat to the component for a short time while twisting with tweezers will break the component loose. Leadless chip component How to replace Flat-IC (surface mount)
  • Page 48 Service notes (continued) IMPORTANT: To protect against possible damage to the solid state devices due to arcing or static discharge, make certain that all ground wires and CRT DAG wire are securely connected. CAUTION: The power supply circuit is above earth ground and the chassis cannot be polarized.

  • Page 49: Feature Table

    Feature table PT-47WX52F PT-47WX42F FEATURE PT-47WX52CF PT-47WX42CF Chassis Number of channels Menu language Eng/Span/Fr Closed caption (CC) V-Chip (USA/CANADA) Picture in Picture (PIP) 2T split VIDEO INPUT MEMORY/SKIP SKIP Remote control number EUR7603Z30 EUR7603Z40 Screen protector W/PROT SCRN W/O PROT SCRN Comb filter ADV 3D Y/C (NEW) Color temp...

  • Page 50: Boards Designation

    Boards designation BOARD PART NUMBER BOARD DESCRIPTION A-Board TNP2AH035 signal processing D-Board TNPH0371 power and deflection LB-Board TNP2AA110 blue driver LG-Board TNP2AA111 green driver LR-Board TNP2AA112 red driver G-Board TNP2AA090 front A/V panel K-Board TNP2AA089 front button panel R-Board TNPA0615AB IR receiver Table 2: Boards designation Note: The A-Board ( TNP2AH035 ) is non-serviceable.

  • Page 51: Ptv - Location Of Controls

    PTV - Location of controls POWER VOLUME CHANNEL ACTION TV/VIDEO Figure 5. Location of controls PTV Quick reference control operation Quick reference control operation Power - Press to turn ON or OFF. Volume - Press to adjust sound level, or to adjust audio menus, video menus, and select operating features when menus are displayed Channel - Press to select programmed channels.

  • Page 52: Remote - Location Of Controls

    Remote - location of controls POWER Button Press to turn ON and OFF. MUTE Button Press to mute sound. A second press resumes sound. Press also to access and delete Closed Caption display. TV, VCR, DVD, CBS/CBL Component function buttons VOL (volume) Buttons Press to adjust TV sound level.

  • Page 53: Disassembly For Service

    Remote - location of controls POWER button Press to turn ON and OFF. MUTE button Press to mute sound. A second press resumes sound. Press also to access and delete Closed Caption display. TV, VCR, DVD, CBS/CBL Component function buttons VOL (volume) buttons Press to adjust TV sound level.

  • Page 54: Cabinet Front Removal

    Auto diagnosis feature This receiver incorporates a new auto-diagnosis feature. With this new feature will be easier for the technicial to detect the failures. There is a LED located by the keyboard on the front panel, this LED will start flashing when a failure is detected by the circuits located in specific areas, depending on how many times the LED is flashing, this will tell you what circuit...

  • Page 55: Crt Set Up

    A-Board check points 2.5V CONV +18 8.96V CONV -18 2.58V -0.46V -0.26V 9.47V -0.46V 3.6V -0.26V 3.58V 3.45V -0.14V 3.11V 0.00V 3.17V -0.47V 3.19V -0.53V 0.00V STB 3.3V 3.27V 0.24V SUB-Y 3.83V STB 7V 6.96V 4.46V NTSC VIDEO 3.52V S+18 SUB TUNER 20.97V VIDEO OUTPUT...

  • Page 56: Convergence Alignment Template

    A-Board check points waveforms Sub tuner video output Main Y Main tuner video output 15.72kHz, 1.00Vpp, 15.72kHz, 1.00Vpp 15.72 kHz, 1 Vpp, 10µs sec/div 10µs sec/div 10µs sec/div Sub Y NTSC video 15.72kHz, 1.92Vpp, 15.72kHz, 2.02Vpp, 60Hz, 3.36Vpp, 10µs sec/div 10µs sec/div 5µs sec/div Conv +18...

  • Page 57: Service Mode (Electronic Controls)

    Chassis & boards layout Top view Back view Figure 10. Chassis & boards layout. Board description Main chassis, video processing, convergence, Blue CRT output audio processing Green CRT output Power supply, vertical out, horizontal out Red CRT output IR sensor - 17 - Service Manual...

  • Page 58: Table Of The Service Adjustment Item Available For Each Format

    Disassembly for service Note: Board ground wires may have to be disconnected to disassemble some boards. All ground wires must be reconnected using jumper leads, if necessary, before power is applied to PTV for service. Speaker grille removal (figure 11) The speaker grille is secured to the cabinet of the PTV.

  • Page 59: Screen Frame Removal

    Disassembly for service (continued) Screen frame removal 1. Remove the speaker grille. Disconnect the cables leading to the keyboard and the AV panels and remove the keyboard and AV panel assembly. The assembly is secured by three (3) screws. Main Chassis Block 2.

  • Page 60: Service Mode (Electronic Controls)

    Disassembly for service (continued) Disassembly for CRT replacement To facilitate CRT replacement, the complete CRT mounting chassis does not need to be removed. 1. Remove the main chassis block from the cabinet. See figure 15. 2. Remove the optical bracket metal cover (rear side) by removing (6) screws from back, (2) screws from top, and (2) screws from each side.

  • Page 61: Optical Block Position Adjustment

    6. Wire the anode lead wire. 8. Press yoke against bell of CRT and tighten the clamp just snug enough so it will not easily shift. 9. Assemble CRT focus lens assembly to new CRT Optical bracket (front) with (4) screws. Make sure focus lens adjustment nut is in the same location as on other CRT focus lens.

  • Page 62: Service Mode (Electronic Controls)

    PTV screen assemblies Protective screen FRONT Label on lower left corner (front side) Labels on opposite sides Front cabinet Label on Lenticular screen lower left corner (note vertical ridges) (rear side) Fresnel screen REAR (note circular ridges) Figure 24. Screen assemblies. B+ voltages table Preparation: Set the following controls...

  • Page 63: Crt Set Up

    PTV Note: 1080i, 480p, 480i pattern can be obtained from ON to prevent damage to the horizontal Panasonic’s TU-DST51 set-top box DTV output transistor and/or CRTs. decoder. 1. Connect test generator to the antenna terminal and 1.

  • Page 64: 1080I Service Mode (Electronic Controls)

    2. Set VIDEO C_OFF DAC from 00 to 02, and project Electric & VM focus adjustment, complete only red. Adjust red focus VR so that focus is best.. adjustment (Perform this adjustment when a CRT is replaced or when major adjustment is required) screen Preparation: + + +...

  • Page 65: Ntsc Vertical Size Adjustment (Vsize)

    4., adjust the Note: 1080i, 480p, 480i pattern can be obtained from alignment magnets until the dots are in the same Panasonic’s TU-DST51 set-top box DTV position as noted in step 4. decoder.

  • Page 66: Parts List

    (VSIZE) (H-POS) Note: 1080i, 480p, 480i pattern can be obtained from Note: 1080i, 480p, 480i pattern can be obtained from Panasonic’s TU-DST51 set-top box DTV Panasonic’s TU-DST51 set-top box DTV decoder. decoder. 1. Apply a NTSC pattern (see avobe note) .

  • Page 67: Hd 1080I Pincushion Adjustment (Pcc)

    Note: 1080i, 480p, 480i pattern can be obtained from NTSC Horizontal size adjustment (H WID) Panasonic’s TU-DST51 set-top box DTV decoder. Note: 1080i, 480p, 480i pattern can be obtained from Panasonic’s TU-DST51 set-top box DTV Procedure: decoder.
  • Page 68 10. Press “TV/VIDEO” key to enter “DATA_POS” mode Note: 1080i, 480p, 480i pattern can be obtained from 11. Adjust by pressing VOL right - left so that peak of Panasonic’s TU-DST51 set-top box DTV curve is the same position as center of cursor. decoder.

  • Page 69: Coarse Adjustment Mode (Coarse)

    2. Press “2” repeatedly and apply the pattern of 12. Press “7” then “ACTION” key on remote to save border and cross. changes. 3. Press RECALL to display values 4. Adjust size so that the line of the border closes to the screen frame at top, bottom, left and right by pressing CH up-down and VOL right-left.

  • Page 70: Fine Adjustment Mode (Fine) (Convergence)

    21. Adjust “R-STATIC” so that the center of red 38. Adjust B-STATIC so that the center of blue overlaps with the center of green. overlaps with the center of green (see figure 51). blue green green Figure 51. B-STATIC adjustment Figure 49.
  • Page 71 In “FINE ADJUSTMENT MODE” options, press 10. To move the cursor press MUTE on the remote “MUTE” key on remote to switch between “cursor” (cursor flashes), then move the cursor to any of the mode and “data” mode. 9 positions for “EASY” mode(see figure 52) •...
  • Page 72 22. Confirm that green adjustment is good enough, if 34. Once the crosshatch pattern looks only white, adjustment is not satisfactory, repeat adjustments. perform the adjustments for White (“POINT”, 23. Enter to LINE “G-LINE” mode by pressing TV/ “ORIG. POINT” & “LINE”), notice that each VIDEO.

  • Page 73: Horizontal And Vertical Size Check

    Grid dimensions: 47” Models: 1036mm horizontal X 584mm vertical. Note: A convergence alignment template, part number TXFQD01ESER1 for 47”, is available through Matsushita/Panasonic Services. Center Center Figure 59. Convergence adjustment grid - 33 -...

  • Page 74: Description Of Abbreviations Guide

    480i-p (same for interlace guide. & progressive), 1080i and ZOOM 480i. A 1080i, 480p, 480i pattern can be obtained from Panasonic’s TU-DST51 Quick entry to service mode: set-top box DTV decoder. When minor adjustments need to be done to the...

  • Page 75: Schematic Notes

    Table of the service adjustment item available for each format Format Signal Formated 480i 480p 1080i MTSIN INPUT LEVEL SEPAL LOW LEVEL SEPARATION SEPAH HIGH LEVEL SEPARATION CLOCK CLOCK CLOCK VIDEO COLOR COLOR TINT TINT BRIGHT SUB-BRIGHTNESS CONT SUB-CONTRAST B-G_Y MAGENTA TINT ADJ R-Y_A YELLOW TINT ADJ...
  • Page 76 Format Signal Formated 480i 480p 1080i VCORR VERTICAL CORRECTION CONV MUTE DIGITAL CONV (ON/OFF) COARS COARSE ADJUSTMENT FINE FINE ADJUSTMENT H-PAR HORIZONTAL PARABOLA V-SAW VERTICAL SAW V-PAR VERTICAL PARABOLA OTHER --------------- ---------------- Note: PTV detects automatically the format of the input signal (480i, 480p or 1080i) - 36 - Service Manual...

  • Page 77: K-Board Schematic And Layout

    480i Service mode (electronic controls, continued) a. Press Note: Registers marked as FIXED are factory preset, buttons on the remote control to select any of the default value must not be changed the seven service sub adjustment addresses. (“a” in figure 60) b.

  • Page 78: G-Board Schematic And Layout

    a. Press Note: Registers marked as FIXED are factory preset, buttons on the remote control to select any of the default value must not be changed the seven service sub adjustment addresses. (“a” in figure 60) b. Press Important note: Write down the original values (“b”...

  • Page 79: Service Mode Dacs

    480p Service mode (electronic controls, continued) a. Press Note: Registers marked as FIXED are factory preset, buttons on the remote control to select any of the default value must not be changed the seven service sub adjustment addresses. (“a” in figure 60) b.
  • Page 80 a. Press Note: Registers marked as FIXED are factory preset, buttons on the remote control to select any of the default value must not be changed the seven service sub adjustment addresses. (“a” in figure 60) b. Press Important note: Write down the original values (“b”...

  • Page 81: 1080I Service Mode Dacs

    1080i Service mode (electronic controls, continued) a. Press Note: Registers marked as FIXED are factory preset, buttons on the remote control to select any of the default value must not be changed the seven service sub adjustment addresses. (“a” in figure 60) b.
  • Page 82 a. Press Note: Registers marked as FIXED are factory preset, buttons on the remote control to select any of the default value must not be changed the seven service sub adjustment addresses. (“a” in figure 60) b. Press Important note: Write down the original values (“b”...

  • Page 83: Instructional Flow Chart For Format Aspect Switching (Wx 16:9 Or Hx 4:3)

    Instructional flow chart for format aspect switching (WX 16:9 or HX 4:3) NORMAL MODE ENTER TO SERVICE MODE • Select CABLE mode. • Set SLEEP time for 30 Min. • Tune to channel 124. • Adjust VOLUME to minimum. • Press VOL DOWN on receiver.

  • Page 84: Instructional Flow Chart For Service Mode

    Instructional flow chart for service mode NORMAL MODE ENTRY TO SERVICE MODE AGING MODE • Select CABLE Mode. • Press VOL UP and ACTION simultaneously on PTV • Set SLEEP time for 30 Min. • Yellow “CHK” appears in upper left corner of screen. •...
  • Page 85 Instructional flow chart for service mode - continued ON REMOTE CONTROL TO (previous/next adjustment ON REMOTE TO VOL VOL to make adjustment Press POWER or ACTION on remote to POWER exit the adjustment. (ON REMOTE) IMPORTANT NOTE: Always verify that PTV is out from service mode.

  • Page 86: Adjustment (Bright)

    1. Set PIC MODE TO VIVID, PICTURE settings to Note: 1080i, 480p, 480i pattern can be obtained from normal, NATURAL COLOR to OFF and COLOR Panasonic’s TU-DST51 set-top box DTV TEMPERATURE to NORMAL. decoder. 2. Connect meter (+) to TPD50 and (-) to TPD51.

  • Page 87: Red, Green & Blue Screen Cutoff

    Note: It is important to adjust the MTS circuit in the order shown below. White balance adjustment The MTS circuit adjustments require two steps: Note: 1080I, 480p, 480I pattern can be obtained from 1. Input level adjustment. Panasonic’s TU-DST51 set-top box DTV 2. Stereo separation adjustment. decoder. Prior this adjustment,...

  • Page 88: Clock Adjustment (Clock)

    4. Apply following signal from signal generator: Video: 100 IRE flat field, 30% modulation. Audio: 3KHz, 30% modulation, stereo (left only). (70dB ± 5dB, 75Ω OPEN, P/S 10dB). Note: Set the 30% modulation with the P.L and N.R. switches OFF then turn them ON while testing.

  • Page 89: Audio Signal Path Block Diagram

    Audio signal path block diagram Figure 65. Audio signal path block diagram - 49 - Service Manual...

  • Page 90: Video-Chroma Signal Path Block Diagram

    Video-chroma signal path block diagram Figure 66. Video-chroma signal path block diagram. - 50 - Service Manual...

  • Page 91: Iic Connection

    IIC connection A-Board IC1002 IC4011 IC4018 SIGNAL SIGNAL PROCESSING PROCESSING MASTER SLAVE IC1004 EEPROM IC3001 TUNER1 IC3002 TUNER2 A/V SELECTOR MAIN V SELECTOR IC2451 IC7107 IC2201 AUDIO CONVERGENCE PROCESSING PROCESSOR D-Board IC601 IC602 VERTICAL VERTICAL DRIVE DEFLECTION CORRECTION Figure 67. IIC connection - 51 - Service Manual...

  • Page 92: Description Of Connectors

    Description of connectors D4--A4 G1--A6 K3--A8 HHS DET GND (CONV) KEY SCAN 1 +18v KEY SCAN 2 GND (CONV) +18v GND (CONV) GND (CONV) GND (REG) -18v LR1--LG3 GND (REG) -18V 210V GND (REG) D2--A2 GND (REG) HEATER 6.3V OFF MUTE GND (REG) GND (SYGNAL) DFCUT...
  • Page 93 Description of connectors (continued) LG2--D5 210V +18V +12V HEATER 40V (+B OF VM) A9--EEPROM A10--BUSSCON STBY -7V SCL1 SDA1 SCL2 SDA2 RM IN - 53 - Service Manual...

  • Page 94: Parts List

    REPLACEMENT PARTS LIST Models: PT-47WX42F, PT-47WX42CF, PT-47WX52F, PT-47WX52CF Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION C509 ECWF2474JSR CAP,P .47UF-J-200V CAPACITORS...
  • Page 95 REPLACEMENT PARTS LIST Models: PT-47WX42F, PT-47WX42CF, PT-47WX52F, PT-47WX52CF Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION C708 ECQE1685KFB CAP,P 6.8UF-K-100V C903...
  • Page 96 REPLACEMENT PARTS LIST Models: PT-47WX42F, PT-47WX42CF, PT-47WX52F, PT-47WX52CF Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION D331 MA165TA5VT DIODE, SWITCHING D816...
  • Page 97 REPLACEMENT PARTS LIST Models: PT-47WX42F, PT-47WX42CF, PT-47WX52F, PT-47WX52CF Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION L302 ELESN100JA COIL, PEAKING 10UH L962...
  • Page 98 REPLACEMENT PARTS LIST Models: PT-47WX42F, PT-47WX42CF, PT-47WX52F, PT-47WX52CF Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION Q937 2SA720TA TRANSISTOR R316...
  • Page 99 REPLACEMENT PARTS LIST Models: PT-47WX42F, PT-47WX42CF, PT-47WX52F, PT-47WX52CF Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION R397 ER0S2THF1201 RES,M 1.2K-F-1/4W R603...
  • Page 100 REPLACEMENT PARTS LIST Models: PT-47WX42F, PT-47WX42CF, PT-47WX52F, PT-47WX52CF Important Safety Notice: Components printed in BOLD TYPE have special characteristics important for safety. When replacing any of these components use only manufacturer’s specified parts. PART NO. DESCRIPTION PART NO. DESCRIPTION R808 ERX12SZJR12P RES,M .12-J-1/2W R925...
  • Page 101 RES,M 2.2K-J-1/10W M022 KFT7CP336F TRANSFORMER DISTRIBUTOR R1527 ERJ6GEYJ272V RES,M 2.7K-J-1/10W M023 TBL2AH30071 CASTER R1528 ERDS2TJ332T RES,C 3.3K-J-1/4W M024 TBM2AA0012 BADGE, PANASONIC R1529 ERJ6GEYJ103V RES,M 10K-J-1/10W M025 TBX2AA0161G BUTTON, 7-KEY R1542 ERG2SJD273L RES,M 27K-J-2W M026 TKD2AX0621 INNER BARRIER BOARD R1544 ERJ6GEYJ471V...
  • Page 102 DESCRIPTION OF ABBREVIATIONS GUIDE RESISTOR CAPACITOR TYPE TOLERANCE TYPE TOLERANCE Carbon ± 1% Ceramic ± 0.25pF Fuse ± 5% Electrolytic ± 0.5pF Metal Oxide ± 10% Polyester ± 1pF Solid ± 20% Styrol ± 5% Wire Wound ± 2% Tantalum ±...

  • Page 103: Schematics

    Notes: IMPORTANT SAFETY NOTICE CHIP TRANSISTOR THIS SCHEMATIC DIAGRAM INCORPORATES SPECIAL LEAD DESIGNATION FEATURES THAT ARE IMPORTANT FOR PROTECTION FROM X-RADIATION, FIRE AND ELECTRICAL SHOCK HAZARDS. WHEN SERVICING ESSENTIAL THAT ONLY MANUFACTURERS SPECIFIED PARTS BE USED FOR THE CRITICAL COMPONENTS DESIGNATED WITH A IN THE SCHEMATIC.
  • Page 104 Notes NOTA DE SEGURIDAD DIAGRAMAS ELÉCTRICOS INCLUYEN CARACTERÍSTICAS ESPECIALES MUY IMPORTANTES IDENTIFICACIÓN DE TERMINALES PARA TRANSISTORES EN CHIP PARA PROTECCIÓN CONTRA RAYOS-X, QUEMADURAS Y DESCARGAS ELÉCTRICAS. CUANDO SERVICIO IMPORTANTE USAR PARA REEMPLAZO COMPONENTES CRITICOS, SOLO PARTES ESPECIFICADAS POR EL FABRICANTES. LOS COMPONENTES CRITICOS ESTAN SEÑALADOS EN LOS DIAGRAMAS POR EL SIMBOLO NOTAS DE LOS DIAGRAMAS...
  • Page 105 Notes - 65 -...
  • Page 106 D-Board Schematic - 66 -...
  • Page 107 D-Board Schematic - 67 -...
  • Page 108 D-Board Schematic - 68 -...
  • Page 109 Jumper between pin 7 and pin 1 D-Board Schematic - 69 -...
  • Page 110 D-Board Schematic - 70 -...
  • Page 111 - 71 - D-Board Schematic...
  • Page 112 D-BOARD INTEGRATED CIRCUITS - TNPH0371 IC451 IC601 IC602 IC603 IC701 IC802 IC801 ..0.04 ..0.24 ..4.28 ..3.83 ..5.92 .
  • Page 113 NOTES: - 73 - NOTES...
  • Page 114 D-Board Layout - 74 -...
  • Page 115 - 75 - D-Board Layout...
  • Page 116 A-Board Schematic - 76 -...
  • Page 117 A-Board Schematic - 77 -...
  • Page 118 A-Board Schematic - 78 -...
  • Page 119 A-Board Schematic - 79 -...
  • Page 120 A-Board Schematic - 80 -...
  • Page 121 A-Board Schematic - 81 -...
  • Page 122 A-Board Schematic - 82 -...
  • Page 123 - 83 - A-Board Schematic...
  • Page 124 Board section Top A-Board Layout Top left portion - 84 -...
  • Page 125 Board section Top right portion - 85 - Top A-Board Layout...
  • Page 126 Board section Top A-Board Layout Bottom left portion - 86 -...
  • Page 127 Board section Bottom right portion - 87 - Top A-Board Layout...
  • Page 128 Board section Bottom side, A-Board Layout Top left portion - 88 -...
  • Page 129 Board section Top right portion - 89 - Bottom A-Board Layout...
  • Page 130 Board section Bottom A-Board Layout Bottom left portion - 90 -...
  • Page 131 Board section Bottom right portion - 91 - Bottom A-Board Layout...
  • Page 132 LG-Board schematic - TNP2AA112 LG-Board schematic - 92 -...
  • Page 133 LG-Board layout - TNP2AA112 LG-Board - TNP2AA112 Q331 Q373 Q374 Q375 Q934 Q935 Q936 4.05 11.98 172.90 171.50 9.08 9.08 9.68 11.61 171.40 218.60 0.43 0.00 18.91 18.91 3.85 11.64 172.40 172.10 9.68 8.49 9.11 Q937 Q938 Q941 Q951 Q952 Q953 Q955 2.47...
  • Page 134 LR-Board schematic - TNP2AA111 LR-Board schematic - 94 -...
  • Page 135 LR-Board schematic - TNP2AA111 LR-Board voltages - TNP2AA111 Q301 Q302 Q303 Q353 Q354 Q355 Q901 0.11 3.92 0.60 11.98 174.90 173.70 137.80 215.90 11.61 0.08 173.70 218.60 0.42 130.20 0.00 3.71 0.00 11.65 174.60 138.40 174.20 Q903 Q904 Q905 Q906 Q907 Q957 Q958...
  • Page 136 LB-Board schematic - TNP2AA110 LB-Board schematic - 96 -...
  • Page 137 LB-Board layout - TNP2AA110 LB-Board voltages- TNP2AA110 Q361 Q362 Q363 Q364 Q365 Q366 Q368 5.14 4.51 3.86 3.92 5.91 5.08 4.48 11.98 11.98 11.54 0.00 11.98 11.98 0.00 4.51 3.92 3.70 3.51 5.28 4.48 3.96 Q393 Q394 Q395 Q959 Q960 Q961 Q964 11.98...
  • Page 138 K-Board schematic - TNP2AA089 K-Board layout - TNP2AA089 K-Board schematic and layout - 98 -...
  • Page 139 G-Board schematic - TNP2AA090 G-Board layout - TNP2AA090 - 99 - G-Board schematic and layout...
  • Page 140 D-Board integrated circuits voltages - TNPH0371 IC451 IC601 IC602 IC603 IC701 IC801 ..0.04 ..0.24 ..4.28 ..3.83 ..5.92 .
  • Page 141 A-Board integrated circuits voltages - TNP2AH035 IC2302 IC7002 IC7001 . . . -23.50 ..GND ..18.84 ..GND ..18.84 . . . -23.45 ..GND .
  • Page 142 A-Board 2.74 Vp-p 6.32 Vp-p 5.60 Vp-p 5.84 Vp-p A15 PIN 9 (VM OUT) A15 PIN 6 (GREEN OUT) A15 PIN 4 (RED OUT) A15 PIN 2 (BLUE OUT) 0.17 Vp-p 3.24 Vp-p 0.14 Vp-p 1.70 Vp-p A2 PIN 13 (ABL) A3 PIN 15 A4 PIN 16 (DFCUT) A15 PIN 11 (S-ABL)
  • Page 143 D-Board 1.50 KVp-p 14.0 Vp-p 68.8 Vp-p 36.0 Vp-p Q551-C Q551-B IC451 PIN 5 (V-OUT) IC451 PIN 3 8.40 Vp-p 6.48 Vp-p 3.20 Vp-p 3.12 Vp-p IC601 PIN 15 (H-DRIVE OUT) IC601 pin 10 (fbp in) IC601 PIN 2 (VP3) IC601 PIN 1 (H-PULSE) 1.90 Vp-p 1.70 Vp-p...
  • Page 144 ® Printed in USA K02042127PL0429...

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