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HCD-DX50/RG80 SERVICE MANUAL Canadian Model HCD-RG80 Ver 1.1 2001. 12 Australian Model E Model HCD-DX50 • HCD-DX50/RG80 are the tuner, Photo : HCD-DX50 deck, CD and amplifier section in MHC-DX50/RG80. Model Name Using Similar Mechanism CD Mechanism Type CDM58E-30BD60 Section...
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CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU PUBLISHED BY SONY.
HCD-DX50/RG80 TABLE OF CONTENTS 1. GENERAL ·········································································· 4 SAFETY CHECK-OUT After correcting the original service problem, perform the 2. DISASSEMBLY ······························································· 7 following safety checks before releasing the set to the customer: 3. TEST MODE ···································································· 12 Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage.
HCD-DX50/RG80 SECTION 2 DISASSEMBLY • The equipment can be removed using the following procedure. Upper case (Top) Loading panel assy Sub trans board and Main trans board Main board and Power board Panel board Leaf SW board, Head (A) board and Head (B) board...
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HCD-DX50/RG80 2-2. LOADING PANEL ASSY Loading panel CD mechanism deck (CDM58E) 1 Turn the pulley to the direction of arrow. Front panel side pulley 2 Pull-out the disc tray. 2-3. FRONT PANEL SECTION CD mechanism deck (CDM58E) 1 Flat type wire (21 core) 4 Screw (+BVTP 3 ×...
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HCD-DX50/RG80 2-4. PANEL BOARD 5 Four screws 7 CD Switch board (+BVTP 2.6 × 8) qa Eight screws (+BVTP 2.6 × 8) qs Pad 6 Four claws switch board 8 Nine screws (+BVTP 2.6 × 8) 9 Two claws q; Panel board qd Five screws (+BVTP 2.6 ×...
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HCD-DX50/RG80 2-6. MAIN BOARD AND POWER BOARD 7 Heat sink 4 Three screws (+BVTP 3 × 10) 6 Two screws (+BVTT 3 × 8) Main board 5 Power board 3 Two screws (+BVTP 3 × 16) 2 Main board 1 Two screws (+BVTP 3 × 10) 2-7.
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HCD-DX50/RG80 2-8. BASE UNIT 1 Screw (+PTPWH M2.6) 2 Holder assy Base unit qs Two insulators q; Screws (DIA. 12) qs Two insulators 9 Two screws (+PTPWH M2.6) 8 Two stoppers 7 Two screws (+BVTP 2.6 × 8) 6 BD board...
HCD-DX50/RG80 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-DX50/RG80 * 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-DX50/RG80 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-DX50/RG80 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-DX50/RG80 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-DX50/RG80 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-DX50/RG80 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 ±0.4Vp-p (RFAC)
HCD-DX50/RG80 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-DX50/RG80 6-1. CIRCUIT BOARD LOCATION MOTOR board ADDRESS SENSOR board DRIVER board BD board MAIN TRANS board SENSOR board CD SWITCH board SWITCH board PANEL board SUB TRANS board PAD SWITCH board MAIN board LEAF SW board POWER board HEAD (A) board HEAD (B) board •...
HCD-DX50/RG80 6-2. BLOCK DIAGRAMS TUNER/CD SECTION AM/FM IF MPX 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 • Signal Path FM 75Ω OSC OUT MAIN...
HCD-DX50/RG80 6-4. SCHEMATIC DIAGRAM MAIN SECTION (2/4) • See page 45 for IC Block Diagrams. • See page 42 for Printed Wiring Board of Switch Board. IC B/D DX50...
HCD-DX50/RG80 6-5. SCHEMATIC DIAGRAM MAIN SECTION (3/4) • See page 20 for Waveforms. • See page 45 for IC Block Diagrams. • See page 37 for Printed Wiring Board of Head Boards. IC B/D...
HCD-DX50/RG80 6-7. PRINTED WIRING BOARD MAIN SECTION • See page 20 for Circuit Boards Location. There are a few cases that the part printed on this diagram isn’t mounted in this model. (Page 29) (Page 39) IC51 IC201 IC202 • Semiconductor Location Ref.
HCD-DX50/RG80 6-9. PRINTED WIRING BOARD BD SECTION • See page 20 for Circuit Boards Location. There are a few cases that the part printed on this diagram isn’t mounted in this model. (Page 27) IC101 • Semiconductor Location Ref. No. Location...
HCD-DX50/RG80 6-11. PRINTED WIRING BOARD AMP SECTION • See page 20 for Circuit Boards Location. There are a few cases that the part printed on this diagram isn’t mounted in this model. (Page 41) (Page 41) (Page 27) (Page 27) •...
HCD-DX50/RG80 6-12. SCHEMATIC DIAGRAM PANEL SECTION • See page 20 for Waveforms. • See page 44 for IC Pin Function Description. • See page 46 for IC Block Diagrams. IC B/D...
HCD-DX50/RG80 6-13. PRINTED WIRING BOARD PANEL SECTION • See page 20 for Circuit Boards Location. There are a few cases that the part printed on this diagram isn’t mounted in this model. (Page 35) (Page 42) IC603 IC601 IC616 (Page 27) •...
HCD-DX50/RG80 6-15. PRINTED WIRING BOARD PANEL SWITCH SECTION • See page 20 for Circuit Boards Location. There are a few cases that the part printed on this diagram isn’t mounted in this model. 1-680-263- (11) (Page 33) • Semiconductor Location Ref.
HCD-DX50/RG80 6-16. SCHEMATIC DIAGRAM LEAF SW SECTION • See page 20 for Waveforms. There are a few cases that the part printed on • See page 45 for IC Block Diagrams. this diagram isn’t mounted in this model.
HCD-DX50/RG80 6-17. PRINTED WIRING BOARD LEAF SW SECTION • See page 20 for Circuit Boards Location. There are a few cases that the part printed on • See page 25 for Schematic Diagram of Head Board. this diagram isn’t mounted in this model.
HCD-DX50/RG80 6-19. PRINTED WIRING BOARD DRIVER SECTION • See page 20 for Circuit Boards Location. There are a few cases that the part printed on this diagram isn’t mounted in this model. IC711 (14) (14) (14) (Page 27)
HCD-DX50/RG80 6-21. PRINTED WIRING BOARD TRANS SECTION • See page 20 for Circuit Boards Location. There are a few cases that the part printed on this diagram isn’t mounted in this model. (Page 31) • Semiconductor Location Ref. No. Location...
HCD-DX50/RG80 6-22. PRINTED WIRING BOARD SWITCH SECTION • See page 20 for Circuit Boards Location. There are a few cases that the part printed on this diagram isn’t mounted in this model. 6-23. IC PIN FUNCTION DESCRIPTION • IC501 M30620MCA-A95FP (MASTER CONTROL) (MAIN BOARD) Pin No.
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HCD-DX50/RG80 Pin No. Pin Name Description A-TRG A deck trigger control signal output B-TRIG B deck trigger control signal output AMS-IN AMS signal input (L=ON,H=OFF) CAPM-H/L Capstan motor High/Low speed control signal output CAPM-CONTROL Capstan motor REV/FWD/STOP control signal output...
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HCD-DX50/RG80 • IC601 MB90M407PF-G-103-BND (DISPLAY CONTROL) (PANEL BOARD) Pin No. Pin Name Description 1 - 5 G5-1 FL grid signal output 6 - 10 P1-5 FL segment signal output VSS-IO — Ground for I/O port 12 - 22 P6-16 FL segment signal output VDD-FIP —...
HCD-DX50/RG80 SECTION 7 EXPLODED VIEWS NOTE: • -XX, -X mean standardized parts, so they may • Abbreviation The components identified by mark 0 or have some differences from the original one. : Argentina model dotted line with mark 0 are critical for safety.
HCD-DX50/RG80 Ver 1.1 2001.12 7-4. TAPE MECHANISM DECK SECTION-1 (TCM-230PWR41C) 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...
HCD-DX50/RG80 Ver 1.1 2001.12 7-5. TAPE MECHANISM DECK SECTION-2 (TCM-230PWR41C) M901 not supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 3-041-946-01 BELT (CAPSTAN B) 3-040-580-11 PULLEY (TENSION) 4-227-239-01 BELT (CAPSTAN C) 4-228-450-11 SPRING (REVERS SLIDER), TORSION...
HCD-DX50/RG80 SECTION 8 ADDRESS SENSOR ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • COILS When indicating parts by reference number, uH: µH parts list may be different from the parts please include the board name. specified in the diagrams or the components •...
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HCD-DX50/RG80 CD SWITCH Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < 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 1/10W IC102 8-759-827-41 IC BA5974FM-E2...
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HCD-DX50/RG80 DRIVER HEAD (A) HEAD (B) LEAF SW MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1-675-912-14 DRIVER BOARD R1002 1-249-409-11 CARBON 1/4W F R1003 1-249-414-11 CARBON 1/4W F ************* R1004 1-247-834-11 CARBON 1.3K 1/4W <...
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HCD-DX50/RG80 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks JR17 1-216-864-11 SHORT Q394 8-729-113-13 TRANSISTOR FA1A4M-T1L33 JR18 1-216-864-11 SHORT Q395 8-729-113-13 TRANSISTOR FA1A4M-T1L33 JR19 1-216-864-11 SHORT Q396 8-729-116-57 TRANSISTOR 2SB1068TP-K JR20 1-216-864-11 SHORT Q397 8-729-113-13 TRANSISTOR...
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HCD-DX50/RG80 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1-216-833-11 METAL CHIP 1/16W R153 1-216-833-11 METAL CHIP 1/16W 1-216-845-11 METAL CHIP 100K 1/16W R154 1-216-833-11 METAL CHIP 1/16W 1-216-839-11 METAL CHIP 1/16W R155 1-216-845-11 METAL CHIP...
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HCD-DX50/RG80 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R339 1-216-834-11 METAL CHIP 1/16W R510 1-216-845-11 METAL CHIP 100K 1/16W R340 1-216-850-11 METAL CHIP 270K 1/16W R511 1-216-851-11 METAL CHIP 330K 1/16W R341 1-216-813-11 METAL CHIP...
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HCD-DX50/RG80 MAIN MAIN TRANS MOTOR Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R822 1-216-842-11 METAL CHIP 1/16W < TERMINAL > R823 1-216-833-11 METAL CHIP 1/16W R824 1-216-841-11 METAL CHIP 1/16W 1-694-555-21 TERMINAL BOARD (4P)(ANTENNA) R825 1-216-827-11 METAL CHIP 3.3K...
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HCD-DX50/RG80 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 2001.12...