Page 1
HCD-V5500 SERVICE MANUAL E Model Chinese Model • HCD-V5500 is the deck, CD section in MHC-V5500/V7700AV. Manufactured under license from Dolby Laboratories Model Name Using Similar Mechanism HCD-V8800 Licensing Corporation. CD Mechanism Type CDM38-5BD21 “DOLBY” and the double-D symbol a are trademarks...
SECTION 1 SERVICING NOTE SELF-DIAGNOSIS Oscilloscope This model has the self-diagnosis function for the VIDEO and AUDIO decoder sections. Immediately after the power on, the self-diagnosis function searches VIDEO board TP709 (LED) each operation of IC’s around the mechanism control microcomputer (IC701).
SECTION 3 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 3-1. BACK PANEL, CD BLOCK REMOVAL CASE Unscrew the five case attachment in the screws (case) (M3 × 8) × 4, (+BV 3 × 8) × 1 and remove the case. 9 CD block 3 Back panel 1 Screw...
SECTION 4 TEST MODE VIDEO CD COLOR-BARS MODE [VIDEO BARD ] (SIDE B) On this mode, the data of the color-bars signal as a picture signal and the 1kHz sine wave signal as a sound signal are output by the SL703 (AFADJ) mechanism control microcomputer (IC701) for video CD signal check.
SECTION 5 ADJUSTMENTS 5-1. MECHANICAL ADJUSTMENT 5-2. ELECTRICAL ADJUSTMENT DECK SECTION PRECAUTION Clean the following parts with a denatured-alcohol-moistened The adjustment should be performed in the publication. swab: (Be sure to make playback adjustment at first.) record/playback head pinch roller The adjustment and measurement should be performed for both erase head rubber belts...
Page 9
Tape Speed Adjustment DECK A DECK B Turn the adjustment screw for the maximum output levels. If these levels do not match, turn the adjustment screw until both of output levels match together within 1 dB. Note: Start the Tape Speed adjustment as below after setting to the test mode.
Page 10
Record Bias Adjustment DECK B Adjustment Level: Procedure: OUTPUT level: –23.8 dB ± 1.0 dB (56.1 to 44.6 mV) Record mode Adjustment Location: MAIN board 1) 315 Hz 50.1mV (–23.8dBs) 2) 10 kHz Adjustment Location : AF OSC [AUDIO BOARD] —...
Page 11
CD SECTION RF Level Check Oscilloscope Note : BD board CD Block is basically designed to operate without adjustment. TP (RF) Therefore, check each item in order given. TP (VC) Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. Use an oscilloscope with more than 10MΩ impedance. Clean the object lens by an applicator with neutral detergent Procedure : when the signal level is low than specified value with the...
Page 12
RF PLL Free-run Frequency Check VIDEO SECTION Procedure : Frequency adjustment Connect frequency counter to TP (PLCK) with lead wire. Connect the frequency counter to check point of the VIDEO frequency counter BD baord board. frequency counter TP (PLCK) VIDEO board TP410 (DCLK) Turned Power switch on.
HCD-V5500 6-3. BLOCK DIAGRAM — DECK/SYSTEM CONTROL SECTION — 6-4. CIRCUIT BOARDS LOCATION CD L REC L PB L CNB108 IIC DATA SYSTEM IIC CLK CONTROL1 TO STR-W550 +12V RECT IC851 CNP701 Q901-904 CONNECTOR BOARD MOTOR (TURN) BOARD IC853 A +7.5V...
Page 17
IC271 BU6257AFV-E2 HSYNC PROTECTION CIRCUIT DATA INPUT VSYNC SHIFT REGISTER VIDEO RAM DATA CHARACTER HORIZONTAL WRITE CHARACTER COLOR CHARACTER SIZE ADDRESS ADDRESS DATA DATA DATA REGISTER REGISTER COUNTER 3-BIT 3-BIT 8-BIT RESET WORD WORD WORD HORIZONTAL HORIZONTAL HORIZONTAL SIZE POSITION ADDRESS COUNTER COUNTER...
Page 18
IC401 CXD1913Q 50 49 48 46 45 44 43 42 41 40 37-39 36 35 34 33 XTEST4 BURST FLAG CSYNC SYNC Slope SYNC Gen. Gen. XRST Sub Carrier Timing Controller TEST MODE Gen. SYSCLK PDCLK SIO and I O-Bus Closed Caption Encoder VSYNC Controller...
6-18. IC PIN FUNCTIONS • IC101 SYSTEM CONTROL (UPD780016YGF-016-3BA)/MAIN board Pin No. Pin Name Description — Not used. LED 1 LED control. LED 2 LED control. LED 5 LED control. LED 6 LED control. LED 3 LED control. LED 4 LED control.
Page 20
Pin No. Pin Name Description LED 17 LED control. LED 16 LED control. LED 15 LED control. IIC-TEMP — Not used. IIC DATA Communciation data. IIC CLK Comunicaton clock. XRST CD reset. XLAT CD latch. FOCUS SW Focus switch. TBL L Table-L.
Page 21
• IC201 MPEG DECODER (CXD1852AQ)/VIDEO board Pin No. Pin Name Description — Ground XTL0O Video decoder master clock pin. Input the XTL0I clock or connect an oscillator between XTL0I and XTL0O. XTL0I The recommended frequencies are 27MHz, 28.6363MHz (NTSC 8fsc), and 35.4686 MHz (PAL 8fsc). —...
Page 22
Pin No. Pin Name Description Data input/output signal pin. Connect to the DRAM data pin so that the lower and upper bytes of the data correspond to the CAS0 to CAS3 controls. MD10 — +5V power supply — Ground MD11 MD12 Data input/output signal pin.
Page 23
Pin No. Pin Name Description B/Cb0 B/Cb1 B/Cb2 B/Cb3 Output pin of the B or Cb signal of the image data. MSB is B/Cb7. Synchronizes with DCLK. (Not used) B/Cb4 B/Cb5 B/Cb6 B/Cb7 Dot clock (DCLK) signal pin. The DCLK frequency is normally 13.5MHz. The DCLK can be input from this pin DCLK or can be made by frequency-dividing (1/integer) the clock input from XTL0I.
Page 25
Pin No. Pin Name Description C/RO0 [MSB] C/RO1 C/RO2 C/RO3 R (Cb/Cr) output 0–7 C/RO4 C/RO5 C/RO6 C/RO7 [LSB] — Power supply (+5V) Y/GO7 [MSB] Y/GO6 Y/GO5 Y/GO4 G (Y) output 0–7 Y/GO3 Y/GO2 Y/GO1 Y/GO0 [LSB] — Power supply (+5V) [MSB] B output 0–7 (Not used) [LSB]...
Page 26
• IC401 10 BIT VIDEO D/A CONVERTER (CXD1913Q)/VIDEO board Pin No. Pin Name Description 8-bit pixel data input pins (PD0 to 7). When control register bit “PIF MODE”=“0”, serve as input pins for multiplexed Y, Cb, Cr signals. When control register bit “PIF MODE”=“1”, serve as input pins for Y signal. —...
Page 27
The functions of this pin are selected by Pin 64 XIICEN. When the XIICEN pin is “H”, sets into the SONY SIO mode, and becomes the SI serial data input pin. When the XIICEN pin is “L”, sets into the I C-BUS mode, and becomes the SDA input/output pin The functions of this pin are selected by Pin 64 XIICEN.
Page 28
• IC701 MECHANISM CONTROL (HD6433032SK12F)/VIDEO board Pin No. Pin Name Description CMD0 Input/output terminal exchanging data bus 0 with IIC interface (IC901) CMD1 Input/output terminal exchanging data bus 1 with IIC interface (IC901) CMD2 Input/output terminal exchanging data bus 2 with IIC interface (IC901) CMD3 Input/output terminal exchanging data bus 3 with IIC interface (IC901) SACK...
Page 29
Pin No. Pin Name Description AVCC — A/D converter (Pin62-29) power supply (Connected to +5V) CHECK-LED Check LED control (Error : flashing) XHIRQ Interruption request input from MPEG decoder SCOR Subcode sync input (CXD2545Q) MREQ Inputs command request from IIC interface (IC901) DATA Serial data output AMUTE...
Page 30
• IC901 IC INTERFACE (uPD780016YGF-012-3BA)/VIDEO board Pin No. Pin Name Description 1 to 8 P80 to P87 Connected to ground TEST — Connected to ground X’ tall (5MHz) X’ tall (5MHz) — Power supply +5V — Not used — Connected to +5V RESET System reset input 16, 17...
SECTION 7 EXPLODED VIEWS Note: • -XX, -X mean standardized parts, so they may • The mechanical parts with no reference number The components identified by mark ! or have some differences from the original one. in the exploded views are not supplied. dotted line with mark ! are critical for safety.
7-6. TAPE MECHANISM DECK SECTION-1 (TCM-220WR2E) (including C) HP101 (including A) not supplied not supplied not supplied 357 368 HRPE101 (including B) not supplied not supplied not supplied not supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 3-908-560-01 SPRING, AZIMUTH ADJUSTMENT...
SECTION 8 AUDIO ELECTRICAL PARTS LIST Note: • Due to standardization, replacements in the • RESISTORS When indicating parts by reference number, parts list may be different from the parts All resistors are in ohms. please include the board name. specified in the diagrams or the components METAL: metal-film resistor used on the set.
Page 46
VIDEO Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks IC401 8-752-380-71 IC CXD1913Q R160 1-216-081-00 METAL CHIP 1/10W IC402 8-759-269-92 IC SN74HCU04ANS-E20 R161 1-216-081-00 METAL CHIP 1/10W IC451 8-759-262-00 IC MC14576CF R201 1-216-025-91 METAL GLAZE 100 1/10W IC452 8-759-262-00 IC MC14576CF...
Page 47
VIDEO VIDEO IN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R402 1-216-025-91 METAL GLAZE 100 1/10W R717 1-216-025-91 METAL GLAZE 100 1/10W R403 1-216-025-91 METAL GLAZE 100 1/10W R718 1-216-025-91 METAL GLAZE 100 1/10W R404 1-216-121-91 METAL GLAZE 1M 1/10W R719...
Page 48
HCD-V5500 VIDEO IN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C611 1-102-972-00 CERAMIC 91PF MISCELLANEOUS ************** < CONNECTOR > 1-751-086-11 WIRE (FLA T TYPE) (13 CORE) CNP106 1-770-725-11 CONNECTOR, BOARD TO BOARD 4P 1-765-325-11 WIRE (FLA...