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HCD-DX80 SERVICE MANUAL E Model Ver 1.1 2001.11 • HCD-DX80 is the tuner, deck, CD and amplifier section in MHC-DX80. Model Name Using Similar Mechanism HCD-DX50 CD Mechanism Type CDM58E-30BD60 Section Base Unit Name BU-30BD60 Optical Pick-up Name A-MAX.3 Tape deck...
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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.
HCD-DX80 SECTION 2 DISASSEMBLY • This set can be disassembled in the order shown below. 2-1. DISASSEMBLY FLOW 2-2. CASE (TOP) (Page 8) 2-3. LOADING PANEL (Page 8) 2-4. CD MECHANISM DECK (CDM58E-30BD60) (Page 9) 2-5. FRONT PANEL SECTION 2-10. BASE UNIT (BU-30BD60)
HCD-DX80 Note: Follow the disassembly procedure in the numerical order given. 2-2. CASE (TOP) case (Top) 5 two screws (case 3 TP2) 9 four screws (+BVTP 3 × 12) 7 two screws (+BVTP 3 × 10) 8 side panel (L)
HCD-DX80 2-8. MAIN BOARD MAIN board 2 MAIN board 1 two screws (+BVTP 3 × 10) 2-9. LEAF SW BOARD, HEAD (A) BOARD, HEAD (B) BOARD 2 five claws 3 LEAF SW board 1 Remove the four solderings. 5 head (A) board 7 head (B) board 4 screw (+PTT 2 ×...
HCD-DX80 2-10. BASE UNIT (BU-30BD60) 1 screw (+PTPWH M2.6) 2 holder assy base unit qs two insulators (BU-30) (BU-30BD60) q; screws (DIA. 12) qs two insulators (BU-30) 9 two screws (+PTPWH M2.6) 8 two stoppers (BU) 7 two screws (+BVTP 2.6 × 8)
HCD-DX80 SECTION 3 TEST MODE [Cold Reset] 7. In the key check mode, the fluorescent indicator tube displays • The cold reset clears all data including preset data stored in the “K0 V0”. Each time a button is pressed, “KEY” value increases.
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HCD-DX80 * Tape function [CD Ship Mode (Memory Clear) ] 1. When a tape is inserted in Deck B and recording is started, the • This mode moves the pickup to the position durable to vibra- input source function selects VIDEO automatically.
HCD-DX80 SECTION 4 SECTION 5 MECHANICAL ADJUSTMENTS ELECTRICAL ADJUSTMENTS Precaution DECK SECTION 0 dB=0.775 V 1. Clean the following parts with a denatured alcohol-moistened swab: 1. Demagnetize the record/playback head with a head record/playback heads pinch rollers demagnetizer. erase head rubber belts 2.
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HCD-DX80 2. Turn the adjustment screw and check output peaks. If the peaks DECK B Tape Speed Adjustment do not match for L-CH and R-CH, turn the adjustment screw Note: Start the Tape Speed adjustment as below after setting to the test so that outputs match within 1dB of peak.
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HCD-DX80 DECK B REC Bias Adjustment 4. Mode: Record Procedure: In the MC test mode, the “REC memory mode” is convenient for MD/VIDEO (AUDIO) IN (J101) this adjustment. In the “REC memory mode” , when the REC starts 315 Hz, 50 mV (–23.8 dB) AF OSC the input signal FUNCTION is switched to VIDEO automatically.
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HCD-DX80 TUNER SECTION CD SECTION FM Tuned Level Adjustment Note : 1. CD Block is basically designed to operate without adjustment. FM RF SIGNAL GENERATOR Therefore, check each item in order given. 2. Use LUV-P01 (4-999-032-01) unless otherwise indicated. 75 Ω coaxial 3.
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HCD-DX80 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 : 0.65 ± 0.15Vp-p (RFDC) 1.1 ±...
HCD-DX80 SECTION 6 DIAGRAMS 6-1. BLOCK DIAGRAM – TUNER/CD Section – AM/FM IF AMP, MPX FM FRONT-END LPF11 IC11 RF IF BUFFER L-CH • R-CH is omitted due to same as L-CH. ANT IN IF OUT FM IF L OUT •...
HCD-DX80 6-3. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS (In addition to this, the necessary note is printed in each block) Note on Printed Wiring Boards: Note on Schematic Diagram: • Circuit Boards Location • All capacitors are in µF unless otherwise noted. pF: µµF •...
HCD-DX80 6-5. PRINTED WIRING BOARD – BD Board – • See page 23 for Circuit Boards Location. • Semiconductor Location (Page 30) Ref. No. Location D101 IC101 IC102 IC103 Q101 Q102 There are a few cases that the part printed on...
HCD-DX80 6-6. SCHEMATIC DIAGRAM – MAIN Board (1/4) – • See page 31 for Wavefoms. • See page 44 for IC Block Diagram. • Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. • no mark : FM...
HCD-DX80 6-7. SCHEMATIC DIAGRAM – MAIN Board (2/4) – • Voltages are dc with respect to ground under no-signal (detuned) conditions. no mark : FM ) : TAPE ] : CD (Page 24) (Page 26) (Page 40) (Page 29) (Page 28)
HCD-DX80 6-8. SCHEMATIC DIAGRAM – MAIN (3/4)/HEAD Board – • See page 31 for Waveform. • See page 44 for IC Block Diagrams. • See page 39 for Printed Wiring Board of Head Boards. (Page 27) (Page 29) • Voltages and waveforms are dc with respect to ground The components identified by mark 0 or dotted under no-signal (detuned) conditions.
HCD-DX80 6-9. SCHEMATIC DIAGRAM – MAIN Board (4/4) – • See page 31 for Waveforms. • See page 47 for IC Pin Function Description. (Page 32) (Page 32) (Page (Page • Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions.
HCD-DX80 6-11. SCHEMATIC DIAGRAM – POWER AMP/SENSOR Board – (Page 42) (Page 29) (Page 42) (Page 29) The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. • Voltages are dc with respect to ground under no-signal (detuned) conditions.
HCD-DX80 6-13. SCHEMATIC DIAGRAM – PANEL/VIDEO SWITCH Board – • See page 31 for Waveform. • See page 47 for IC Pin Function Description. • See page 44 for IC Block Diagram. (Page 36) (Page 29) (Page 36) • Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions.
HCD-DX80 6-15. SCHEMATIC DIAGRAM – CD SWITCH/PAD SWITCH Board – (Page 34) • Voltages are dc with respect to ground under no-signal (detuned) conditions. no mark : FM (Page 34)
HCD-DX80 6-17. SCHEMATIC DIAGRAM –LEAF SW Board – (Page 29) • Voltages are dc with respect to ground under no-signal There are a few cases that the part printed on conditions. this diagram isn’t mounted in this model. no mark : TAPE PLAY...
HCD-DX80 6-19. SCHEMATIC DIAGRAM – ADDRESS SENSOR/DRIVER/MOTOR Board – • See page 44 for IC Block Diagram. IC B/D (2/4) (Page 27) • Voltages are dc with respect to ground under no-signal (detuned) conditions. no mark : CD STOP...
HCD-DX80 6-20. PRINTED WIRING BOARDS – ADDRESS SENSOR/DRIVER/MOTOR Board – • See page 23 for Circuit Boards Location. • Semiconductor Location Ref. No. Location D701 IC701 IC711 C712 IC711 (14) (14) There are a few cases that the part printed on this diagram isn’t mounted in this model.
HCD-DX80 6-21. SCHEMATIC DIAGRAM – MAIN TRANS/SUB TRANS Board – The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. • Voltages are dc with respect to ground under no-signal (detuned) conditions.
HCD-DX80 6-22. PRINTED WIRING BOARDS – MAIN TRANS/SUB TRANS Board – • See page 23 for Circuit Boards Location. • Semiconductor AC IN Location MAIN TRANS BOARD SUB TRANS BOARD Ref. No. Location D971 (EXCEPT MX) D972 D973 (EXCEPT MX)
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HCD-DX80 • IC Block Diagrams – BD Board – IC101 CXD3017Q IC103 CXA2581N-T4 RW/ROM 59 58 57 46 45 44 DC OFST Digital RFDCI – – RFDCO LRCK OP Amp PCMD Interface Digital Asymmetry Converter Analog SW Corrector XTSL –...
HCD-DX80 6-23. IC PIN FUNCTION DESCRIPTION • MAIN BOARD IC501 M30620MCA-A95FP (SYSTEM CONTROLLER) Pin No. Pin Name Description AUDIO OUT Audio output signal on/off control “H”: ON, “L”: OFF Not used (open) ON/OFF STEREO Stereo detection signal input from the LA1845 (IC11) “L”: Stereo in TUNED Tuning detection signal input from the LA1845 (IC11) “L”: Tuned in...
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HCD-DX80 Pin No. Pin Name Description LOAD-OUT Turn motor control signal output to the BA6956AN (IC701) OPEN-SW Tray open detect signal input terminal “L”: open CLOSE-SW Tray close detect signal input terminal “L”: close BU UP/DOWN- Pick-up up/down detect signal input terminal...
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HCD-DX80 Pin No. Pin Name Description STBY-RELAY Standby relay on/off control signal output to the RY971 “H”: relay on REAR-RELAY Rear speaker relay on/off control signal output to the STA. AMP (TA-DX80) “H”: relay on SURR-RELAY Surround speaker relay on/off control signal output terminal “H”: relay on Not used (open) FRONT-RELAY Front speaker relay on/off control signal output to the RY801 “H”: relay on...
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HCD-DX80 • PANEL BOARD IC601 MB90M407PF-G-103-BND (DISPLAY CONTROL) Pin No. Pin Name Description 1 to 5 G5 to G1 FL grid drive signal output 6 to 10 P1 to P5 FL segment drive signal output VSS IO — Ground terminal (VSS for I/O)
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HCD-DX80 Pin No. Pin Name Description XOUT System clock output terminal (4MHz) System clock input terminal (4MHz) VCC-CPU — Power supply terminal (+3.3V) (VCC for CPU) 85 to 91 NO USE Not used (open) SOFT TEST Soft test terminal Not used (open)
HCD-DX80 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.
HCD-DX80 7-3. MAIN BOARD SECTION T910 not supplied not supplied 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.
HCD-DX80 7-5. BASE UNIT SECTION (BU-30BD60) not supplied not supplied not supplied 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.
HCD-DX80 7-6. TAPE MECHANISM DECK SECTION-1 (TCM-230AWR41) Note: Two different types of tape mechanism are used depending on models. They maintain compatibility as an entire mechanism even though there are some different parts are used. PM901 HP901 PM902 HRPE901 Ref. No.
HCD-DX80 7-7. TAPE MECHANISM DECK SECTION-2 (TCM-230AWR41) not supplied not supplied M901 not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-041-946-01 BELT (CAPSTAN B) 3-318-203-62 SCREW (B1.7X4), TAPPING 4-227-239-01 BELT (CAPSTAN C) 3-019-208-01 WASHER, STOPPER...
HCD-DX80 SECTION 8 ADDRESS SENSOR ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • COILS The components identified by uH: µH mark 0 or dotted line with mark parts list may be different from the parts speci- 0 are critical for safety.
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HCD-DX80 CD-SW Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R181 1-216-081-00 METAL CHIP 1/10W < IC > R182 1-216-081-00 METAL CHIP 1/10W R183 1-216-081-00 METAL CHIP 1/10W IC101 8-752-402-31 IC CXD3017Q R190 1-216-033-00 METAL CHIP...
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HCD-DX80 DRIVER HEAD (A) HEAD (B) LEAF SW MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-675-912-14 DRIVER BOARD < RESISTOR > ************* R907 1-247-879-11 CARBON 100K 1/4W < CAPACITOR > R1001 1-249-409-11 CARBON 1/4W...
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HCD-DX80 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-760-023-11 FILTER, CERAMIC < FRONT END > < CONNECTOR > 1-693-477-12 FRONT END (3 GANGS) (FM FRONT-END) * CN101 1-565-291-11 SOCKET, CONNECTOR 13P < IC >...
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HCD-DX80 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark Q829 8-729-120-28 TRANSISTOR 2SC1623-T1-L5L6 JR38 1-216-864-11 SHORT JR104 1-216-864-11 SHORT Q831 8-729-113-69 TRANSISTOR FN1F4M-T1M32 JR201 1-216-864-11 SHORT Q832 8-729-120-28 TRANSISTOR 2SC1623-T1-L5L6 JR301 1-216-864-11 SHORT Q861 8-729-113-69 TRANSISTOR...
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HCD-DX80 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-216-829-11 METAL CHIP 4.7K 1/16W R163 1-216-825-11 METAL CHIP 2.2K 1/16W 1-216-809-11 METAL CHIP 1/16W R164 1-216-845-11 METAL CHIP 100K 1/16W 1-216-833-11 METAL CHIP 1/16W R165...
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HCD-DX80 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R520 1-216-833-11 METAL CHIP 1/16W R356 1-216-832-11 METAL CHIP 8.2K 1/16W R522 1-216-829-11 METAL CHIP 4.7K 1/16W R357 1-216-832-11 METAL CHIP 8.2K 1/16W R523 1-216-829-11 METAL CHIP 4.7K...
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HCD-DX80 MAIN MAIN TRANS MOTOR Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R820 1-216-821-11 METAL CHIP 1/16W < TERMINAL > R821 1-216-841-11 METAL CHIP 1/16W R822 1-216-842-11 METAL CHIP 1/16W 1-694-555-22 TERMINAL BOARD (4P) (ANTENNA)
HCD-DX80 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 2001.11...