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MCE-SV7 SERVICE MANUAL E Model Ver 1.0 2001.06 MCE-SV7 is the Video CD/CD player section in MHC-SV7AV. Model Name Using Similar Mechanism CD Mechanism Type CDM63B Base Unit Name BU-30BD61A Optical Pick-up Name OP Assy (A-MAX.3) SPECIFICATIONS VIDEO CD/CD player section...
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LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY.
MCE-SV7 SECTION 1 SERVICING NOTES This set is a component of the MHC-SV7AV. CD-TEXT TEST DISC The MHC-SV7AV system configuration is as shown below, and therefore it does not operate normally unless all four components This unit is able to display the test data (character information) are connected.
MCE-SV7 SECTION 2 This section is extracted from instruction manual. GENERAL Parts Identification The items are arranged in alphabetical order. Refer to the pages indicated in parentheses ( ) for details. Main unit Remote Control VIDEO CD/CD player CHECK qd (17)
MCE-SV7 SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. 3-1. DISASSEMBLY FLOW 3-2. COVER (Page 7) 3-3. CD MECHANISM DECK 3-5. FRONT PANEL SECTION 3-4. MAIN BOARD (CDM63B) (Page 8) (Page 8) (Page 7) 3-6.
TEST MODE Note: Use following buttons in the test mode. [CD Service Mode] no mark : Button of video CD unit (MCE-SV7) • This mode can run the CD sled motor optionally. Use this mode, : Button of amplifier unit (TA-SV7AV) for instance, when cleaning the optical pick-up.
MCE-SV7 SECTION 5 ELECTRICAL ADJUSTMENTS Note: Clear RF signal waveform means that the shape “◊” can be Checking Location : CD SECTION VIDEO SECTION clearly distinguished at the center of the waveform. Note : Video Frequency Adjustment [ BD BOARD ] — SIDE B —...
MCE-SV7 6-4. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS • Circuit Boards Location (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 •...
MCE-SV7 6-8. SCHEMATIC DIAGRAM – CD CHANGER Section – • See page 29 for IC Block Diagram. IC731 SUB TRAY1 HEIGHT SENSOR IC732 SUB TRAY2 HEIGHT SENSOR IC733 SUB TRAY3 HEIGHT SENSOR MAIN BOARD NO202 (Page 25) IC751 DISC IN DETECT •...
MCE-SV7 6-9. PRINTED WIRING BOARDS – AUDIO/VIDEO Section – • See page 15 for Circuit Boards Location. VIDEO BOARD VMP BOARD VMP BOARD (SIDE A) (SIDE B) NO801 J801 IC304 S VIDEO OUT CN302 IC302 C801 (CHASSIS) CLP801 (CHASSIS) J802...
MCE-SV7 6-12. SCHEMATIC DIAGRAM – AUDIO/VIDEO Section (3/3) – • • See page 28 for Waveforms. See page 29 for IC Block Diagrams. VIDEO J802 VIDEO OUT CN302 NO801 J801 S VIDEO OUT CLP801 (CHASSIS) C801 0.1 C802 0.1 (CHASSIS)
MCE-SV7 6-13. PRINTED WIRING BOARDS – MAIN Section – • See page 15 for Circuit Boards Location. (Page 20) (Page 18) SYSTEM CONTROL 3 VMP BOARD DRIVER BOARD TO ST-SV7 CN502 CN701 MAIN BOARD (CHASSIS) SYSTEM CONTROL 5 TO TC-S3...
MCE-SV7 6-17. IC PIN FUNCTION DESCRIPTION • BD BOARD IC101 CXD3068Q (DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO PROCESSOR) Pin No. Pin Name Description DVDD0 — Power supply terminal (+3.3V) (digital system) XRST Reset signal input from the video CD controller (IC502) “L”: reset MUTING Muting on/off control signal input from the video CD controller (IC502) “H”: muting on...
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MCE-SV7 Pin No. Pin Name Description AVSS0 — Ground terminal (analog system) IGEN Stabilized current input for operational amplifiers AVDD0 — Power supply terminal (+3.3V) (analog system) ASYO EFM full-swing output terminal ASYI Asymmetry comparator voltage input terminal RFAC EFM signal input from the CXA2581N (IC103) AVSS1 —...
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MCE-SV7 • VMP BOARD IC502 M30622MGA-A59FP (VIDEO CD CONTROLLER) Pin No. Pin Name Description SENSE Internal status (SENSE) signal input from the CXD3068Q (IC101) SENSE CLK Sense serial data reading clock signal output to the CXD3068Q (IC101) RESOLUTION Serial data output to the Y amplifier (IC303)
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MCE-SV7 Pin No. Pin Name Description BUS XWRL Not used LO.BOOST Low boost control signal output terminal Not used (open) AUDIO MUTING Audio muting on/off control signal output terminal “L”: muting on Not used (open) LOAD OUT Loading motor drive signal output terminal Not used (open)
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MCE-SV7 • VMP BOARD IC505 CL680T-D1 (MPEG VIDEO/AUDIO DECODER, VIDEO SIGNAL PROCESSOR) Pin No. Pin Name Description Not used (open) — Ground terminal CD-BCK CD decode bit clock signal (2.8224 MHz) input from the CXD3068Q (IC101) CD-DATA CD decode data input from the CXD3068Q (IC101) CD-LRCK CD decode L/R sampling clock signal (44.1 kHz) input from the CXD3068Q (IC101)
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MCE-SV7 Pin No. Pin Name Description AGND-DAC — Ground terminal (for D/A converter) RREF Fix the video signal output level control VREF Reference voltage (+1.235V) output terminal AVDD-DAC — Power supply terminal (+3.3V) (for D/A converter) C-OUT Chrominance video signal output terminal AGND-DAC —...
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MCE-SV7 Pin No. Pin Name Description HSEL Command selection signal input from the video CD controller (IC502) CDG-SDATA Not used (fixed at “L”) CDG-VFSY Not used (fixed at “L”) CDG-S0S1 Not used (fixed at “L”) 125 to 128 Not used (open)
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MCE-SV7 • MAIN BOARD IC401 M30620MAA-B53FP (SYSTEM CONTROLLER) Pin No. Pin Name Description 1 to 7 — — Not used (open) External data bus line byte selection signal input “L”: 16 bits, “H”: 8 bits BYTE Not used (fixed at “L”) CNVSS —...
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MCE-SV7 Pin No. Pin Name Description Detection input from the disc tray 3 height sensor (IC733) T-SENS3 “H”: disc tray 3 position is chucking position — — Not used (fixed at “H”) DISC-SENS Detection input from the disc in detect sensor (IC751)
MCE-SV7 SECTION 7 EXPLODED VIEWS NOTE: • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they The components identified by mark 0 or dotted line with mark may have some difference from the original are seldom required for routine service.
MCE-SV7 7-2. CHASSIS SECTION CDM63B BU-30BD61A not supplied not supplied not supplied not supplied not supplied not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-951-620-01 SCREW (2.6X8), +BVTP 1-769-977-11 WIRE (FLAT TYPE) (13 CORE)
MCE-SV7 7-3. CD MECHANISM DECK SECTION-1 (CDM63B) not supplied not supplied not supplied not supplied supplied not supplied not supplied not supplied not supplied not supplied not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-218-253-01 SCREW (M2.6), +BTTP...
MCE-SV7 7-5. BASE UNIT SECTION (BU-30BD61A) The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark...
MCE-SV7 SECTION 8 ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • Items marked “*” are not stocked since they The components identified by mark 0 or dotted line with mark parts list may be different from the parts speci- are seldom required for routine service.
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MCE-SV7 DISC SENSOR DRIVER IN OUT SW MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R151 1-216-097-11 RES-CHIP 100K 1/10W 1-678-460-11 DRIVER BOARD R152 1-216-065-00 RES-CHIP 4.7K 1/10W ************* R163 1-216-295-11 SHORT R164 1-216-295-11 SHORT <...
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MCE-SV7 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < IC > C311 1-162-306-11 CERAMIC 0.01uF C312 1-161-494-00 CERAMIC 0.022uF IC102 8-749-019-13 IC TOTX140 (OPTICAL OUT TO ST-SV7) C357 1-126-964-11 ELECT 10uF IC401 6-800-589-01 IC M30620MAA-B53FP...
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MCE-SV7 MAIN MOTOR PANEL SUB PANEL TRAY SENSOR Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R486 1-247-807-31 CARBON 1/4W S719 1-771-410-21 SWITCH, TACTILE (PREV) R487 1-247-807-31 CARBON 1/4W S720 1-771-410-21 SWITCH, TACTILE (NEXT) R489 1-247-807-31 CARBON...
MCE-SV7 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...
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