Page 1
HCD-VX222 SERVICE MANUAL E Model Ver 1.2 2001.09 • HCD-VX222 is the tuner, deck, CD and amplifier section in MHC- VX222. Model Name Using Similar Mechanism CD Mechanism Type CDM58B-K6BD37A Section Base Unit Name BU-K6BD37A Optical Pick-up Name KSM-213DCP/Z-NP Tape deck...
Page 2
MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE Laser Semiconductor laser COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS ( =780 nm) APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS Emission duration: PUBLISHED BY SONY.
HCD-VX222 SECTION 1 SERVICE NOTE REMOVING THE PANEL BOARD AND THE KEY BOARD * The panel board and the key board only are connected to the front panel by means of hot-melting the plastics. 5 Key board 3 Panel board...
HCD-VX222 Setting the time Turn on the system. Press CLOCK/TIMER SET on the remote. Proceed to step 5 when “CLOCK” appears in the display. Press v or V repeatedly to select “SET CLOCK”. Press ENTER. Press repeatedly to set the hour.
HCD-VX222 SECTION 3 DISASSEMBLY Note : Disassemble the unit in the order as shown below. Case (Side-R, Side-L, Top) CD door Front panel section Tape mechanism deck Panel board Key board CD mechanism deck Video board, Base unit, BD board...
Page 8
HCD-VX222 3-2. CD DDOR CD door CD mechanism deck (CDM58B) 1 Turn the pulley to the direction of arrow. Front panel side pulley 2 Pull-out the disc tray. 3-3. CD MECHANISM DECK (CDM58B), FRONT PANEL SECTION, CHASSIS SECTION 4 Screw...
Page 9
HCD-VX222 3-4. TAPE MECHANISM DECK 1 Six screws (+BVTP 2.6 × 8) 2 Tape mechanism deck 3-5. PANEL BOARD 6 Panel board 4 Connector (CN712) 2 Vol knob ring 5 Cut the seven melted-connection points with a cutting plier. 1 Volume knob Note: When attching the panel board, refer to "Service Note"...
Page 10
HCD-VX222 3-6. KEY BOARD 2 Key board 1 Cut the six melted-connection points with a cutting plier. Note: When attching the Key board, refer to "Service Note" on page 4. 3-7. SUB TRANS BOARD, VIDEO OUT BOARD, BACK PANEL, POWER TRANSFORMER (TRANS BOARD)
Page 11
HCD-VX222 3-8. MAIN BOARD, POWER AMP BOARD 7 Heat sink 6 Two screws (+BVTT 3 × 6) 4 Three screws (+BVTT 3 × 6) Main board 5 Power amp board 3 Two screws (+BVTP 3 × 16) 2 Main board 1 Two screws (+BVTT 3 ×...
Page 12
HCD-VX222 3-10. DRIVER BOARD, MOTOR BOARD AND ADDRESS SENSOR BOARD q; Screw (+PTPWH 2.6 × 8) 4 Two screws (+BVTP 2.6 × 8) 8 Motor board 6 Wire (flat type)(CN721) 5 Remove the two solderings of motor. qs Screw (+BVTP 2.6 × 8)
HCD-VX222 SECTION 4 TEST MODE [MC Cold Reset] [Change-over of AM Tuner Step between 9 kHz and • The cold reset clears all data including preset data stored in the 10 kHz] RAM to initial conditions. Execute this mode when returning •...
Page 14
HCD-VX222 [MC Test Mode] [Microprocessor version display] • This mode is used to check operations of the respective sections • If the following operation is performed during the POWER OFF of Amplifier, TUNER, CD and Tape. in the modes other than the POWER SAVE mode (i.e., while the...
Page 15
HCD-VX222 [Aging Mode] This mode can be used for operation check of CD section and tape deck section. • If an error occurred: The aging operation stops and display status. • If no error occurs: The aging operation continues repeatedly.
Page 16
HCD-VX222 2) Operation during aging mode [VIDEO CD Color-bars Mode] In the aging mode, the program is executed in the following On this mode, the data of the color-bars signal as a picture signal sequence. and the 1 kHz sine wave signal as a sound signal are output by the (1) The disc tray opens and closes.
HCD-VX222 SECTION 5 ELECTRICAL ADJUSTMENTS FM Tuned Level Adjustment CD SECTION FM RF Signalgenerator Note : 1. CD Block is basically designed to operate without adjustment. 75 Ω coaxial Therefore, check each item in order given. 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.
Page 18
HCD-VX222 Note : Clear RF signal waveform means that the shape “ ◊ ” can be clearly Adjustment Location: distinguished at the center of the waveform. [BD BOARD] (Conductor Side) RF signal waveform VOLT/DIV : 200mV TIME/DIV : 500ns level : 1.45 ± 0.3Vp-p...
Page 19
HCD-VX222 VIDEO SECTION Frequency Adjustment Connection: frequency counter VIDEO board (27 MHz) Procedure: 1. Connect the frequency counter to check point of the VIDEO board. 2. Turned power switch on. 3. Press the CD button to select the CD. 4. Adjust CT503 on the VIDEO board so that the frequency counter reading 27.0 MHz ±...
HCD-VX222 SECTION 6 DIAGRAMS THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) Note on Schematic Diagram: Note on Printed Wiring Boards: • All capacitors are in µF unless otherwise noted. pF: µµF •...
HCD-VX222 6-2. BLOCK DIAGRAMS AM/FM TUNER SECTION FRONT-END, IFAMP, MPX IC101 TM101 FE101 Q101 CF101 CF102 RF IF L-CH • RCH is omitted ANT IN IF OUT FM IF L OUT Q103 • Signal Path FM 75Ω OSC OUT MAIN...
HCD-VX222 MAIN SECTION RV703 IC702 IC702 (1/2) (2/2) ECHO AMP LEVEL IC703 J703 MIC AMP MIC1 RV702 LPF IN LPF2 OUT ECHO LEVEL IC501 JK302 J702 TUNER L-CH SECTION TUNER L OUT L SPEAKER MIC2 (Page 22) POWER IMPEDANCE Q361,362...
HCD-VX222 VIDEO SELECTOR MAIN VIDEO SW VIDEO SECTION SECTION IC704 (Page 23) TUNER XRST MAIN VIDEO SECTION SECTION (Page 22) (Page 23) VIDEO AMP TUNER IC304 CD DATA/CD BCK/CD LRCK/C2PO J705 SECTION (Page 22) VIDEO Y AMP MIX OUT1 IC303...
HCD-VX222 6-6. SCHEMATIC DIAGRAM – BD SECTION – • See page 21 for Waveforms. • See page 48,49 for IC Block Diagrams. (KSM-213DCP) CN501 The components identified by mark 0 or dotted line with mark 0 are critical for safety.
HCD-VX222 6-20. SCHEMATIC DIAGRAM – VIDEO CD SECTION (1/2) – • See page 21 for Waveforms. • See page 46 for IC Pin Function Description. • See page 51 for IC Block Diagrams. CN501 M30620MCA-B22FP BD BOARD CN301 CN101 (Page 27)
HCD-VX222 6-21. SCHEMATIC DIAGRAM – VIDEO CD SECTION (2/2) – • See page 21 for Waveforms. • See page 51 for IC Block Diagrams. (Page 41) C561 IC B/D IC506 MT23C020-H001S...
HCD-VX222 6-22. IC PIN FUNCTION DESCRIPTION • MAIN BOARD (4/5) IC401 M30622MAA-A98FP (MASTER CONTROL) Pin No. Pin Name Description S-OUT Serial data output the display control. S-CLK Serial clock output from main controller. S-BSY Busy signal input from the display control. “L” : busy REMOTE IN Pemoto commander input.
Page 44
HCD-VX222 Pin No. Pin Name Description NO USE — Not used. CENT-MUTE — Not used. REAR-MUT — Not used. 494-DAT — Not used. 494-CLK — Not used. 494-LT — Not used. SUR1 Surround control signal output. SUR2 Surround control signal output.
Page 45
HCD-VX222 • PANEL BOARD IC701 UPD780232GC-031-8BT (DISPLAY CONTROL) Pin No. Pin Name Description Power supply.(+5V) — Connected to ground. System clock output terminal.(5MHz) System clock input terminal.(5MHz) — Connected to ground. RESET Reset signal input from main controller. S-CLK Serial clock input from main controller.
Page 46
HCD-VX222 VIDEO BOARD IC502 M30620MCA-B22FP (CD MECHANISM CONTROLLER) Pin No. Pin Name Description SENSE Internal status (SENSE) signal input from the CXD3008Q (IC101) SENSE CLK Sense serial data reading clock signal output to the CXD3008Q (IC101) RESOLUTION Y resolution output...
Page 47
HCD-VX222 Pin No. Pin Name Description OUTSW Disc detection (load out) switch input terminal. Not used (fixed at “H”) MODEL1 Destination setting terminal (fixed at “L”) MODEL2 Destination setting terminal (fixed at “L”) TBLL — Not used (open) TBLR —...
HCD-VX222 SECTION 7 Ver 1.2 2001.09 EXPLODED VIEWS NOTE: The components identified by • Items marked “*” are not stocked since they are • Abbreviation mark 0 or dotted line with mark seldom required for routine service. Some delay : Saudi Arabia model 0 are critical for safety.
HCD-VX222 Ver 1.2 2001.09 7-2. FRONT PANEL SECTION * For service only (Be sure to refer to "Service note" on page 4.) FLD1 not supplied not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-234-019-11 VOLUME KNOB… (BLACK) 4-224-562-01 BRACKET (HEART CAM L) 4-237-847-01 VOLUME KNOB…...
HCD-VX222 SECTION 8 ADDRESS SENOR ELECTRICAL PARTS LIST NOTE: Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks • Due to standardization, replacements in the • COILS uH: µH parts list may be different from the parts...
Page 66
HCD-VX222 POWER AMP SUB TRANS Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks A-4476-990-A POWER AMP BOARD, COMPLETE (E,EA,IA,SP) Q581 8-729-140-84 TRANSISTOR 2SC1841-PAFAEA A-4725-699-A POWER AMP BOARD, COMPLETE (TW) A-4726-000-A POWER AMP BOARD, COMPLETE (TH) < RESISTOR >...
Page 67
HCD-VX222 SUB TRANS TRANS VIDEO Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks D904 8-719-200-82 DIODE 11ES2 < TRANSFORMER > D905 8-719-200-82 DIODE 11ES2 0 T911 1-437-221-11 TRANSFORMER, POWER < IC > ****************************************************** IC901 8-759-158-62 IC TA78057S...
Page 68
HCD-VX222 VIDEO Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C545 1-165-319-11 CERAMIC CHIP 0.1uF JW304 1-216-295-00 SHORT C546 1-165-319-11 CERAMIC CHIP 0.1uF JW413 1-216-295-00 SHORT C547 1-126-193-11 ELECT JW504 1-216-295-00 SHORT C548 1-165-319-11 CERAMIC CHIP 0.1uF...
Page 69
HCD-VX222 VIDEO VIDEO OUT Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R508 1-216-073-00 RES-CHIP 1/10W MISCELLANEOUS R516 1-216-073-00 RES-CHIP 1/10W ************* R517 1-216-073-00 RES-CHIP 1/10W R518 1-216-073-00 RES-CHIP 1/10W 1-769-986-11 WIRE (FLAT TYPE) (13 CORE)
Page 70
HCD-VX222 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 2001.09...