Sony hcd cq 1 service manual
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2 HCD-CQ1 After correcting the original service problem, perform the following safety checks before releasing the set to the customer: Check the antenna terminals, metal trim, metallized knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below. LEAKAGE The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes). Leakage current can be measured by any one of three methods. 1. A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers instructions to use these instruments. 2. A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job. 3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The limit indication is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V AC range are suitable. (See Fig. A) SAFETY CHECK-OUT To Exposed Metal Parts on Set 0.15 µF 1.5 kΩAC Voltmeter (0.75 V) Earth Ground Fig. A. Using an AC voltmeter to check AC leakage. General Power requirements North American model: 120 V AC, 60 Hz European model: 230 V AC, 50/60 Hz Australian model: 230 @ 30 V AC, 50/60 Hz Mexican model:120 V AC, 60 Hz Korean model: 220 V AC, 60 Hz Taiwanese model: 120 V AC, 50/60 Hz Other models: 2 V AC, 50/60 Hz Power consumption North American and Mexican models: 40 watts European model: 40 watts 0.25 watts (in the standby mode) Other models: 40 watts Dimensions (w/h/d) Approx. 190 × 120 × 235 mm incl. projecting parts and controls Mass Approx. 3.5 kg Design and specifications are subject to change without notice. Ver 1.1 2003.06
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3 HCD-CQ1 TABLE OF CONTENTS 1. SERVICING NOTES ······················································· 4 2. GENERAL ·········································································· 6 3. DISASSEMBLY 3-1. Panel (Back) ···································································· 9 3-2. Panel (Top) Assy ··························································· 10 3-3. PANEL Board ······························································· 11 3-4. CD Mechanism Deck (CDM76-K6BD44S) ················· 11 3-5. JACK Board, REG Board ············································· 12 3-6. Bearing Assy, Bushing (Guide A) ································· 12 3-7. Tuner (FM/AM) ···························································· 13 3-8. POWER Board ······························································ 13 3-9. REMOCON Board, Panel (Front) Assy ························ 14 3-10. CONTROL Board ······················································· 14 3-11. Optical Pick-Up (KSM-213DCP/Z-NP) ····················· 15 3-12. BD Board ···································································· 15 3-13. KSS-213D/Q-RP ························································· 16 3-14. Slider (R), Slider (L) ··················································· 16 3-15. Tray ············································································· 17 3-16. LOADING Board, Gear (P), Gear (M) ······················· 17 4. TEST MODE ···································································· 18 5. ELECTRICAL ADJUSTMENTS ······························· 20 6. DIAGRAMS 6-1. Note for Printed Wiring Boards and Schematic Diagrams ···················································· 21 6-2. Block Diagram – CD Section – ··································· 22 6-3. Block Diagram – MAIN Section – ······························ 23 6-4. Printed Wiring Board – BD Section – ························· 24 6-5. Schematic Diagram – BD Section – ···························· 25 6-6. Printed Wiring Board – PANEL Section (Component Side) – ······················· 26 6-7. Printed Wiring Board – PANEL Section (Conductor Side) – ························· 27 6-8. Printed Wiring Board – CONTROL Section (Component Side) – ················· 28 6-9. Printed Wiring Board – CONTROL Section (Conductor Side) – ··················· 29 6-10. Schematic Diagram – CONTROL Section – ··············· 30 6-11. Printed Wiring Board – POWER Section (Component Side) – ······················ 31 6-12. Printed Wiring Board – POWER Section (Conductor Side) – ······················· 32 6-13. Schematic Diagram – POWER Section – ··················· 33 6-14. IC Block Diagrams ······················································ 34 6-15. IC Pin Function Description ········································ 35 7. EXPLODED VIEWS 7-1. Panel (Top) Section ····················································· 37 7-2. Chassis Section-1 ························································ 38 7-3. Chassis Section-2 ························································ 39 7-4. Chassis Section-3 ························································ 40 7-5. CD Mechanism Deck Section-1 (CDM76-K6BD44S) ··················································· 41 7-6. CD Mechanism Deck Section-2 (CDM76-K6BD44S) ··················································· 42 7-7. KSM-213DCP/Z-NP ··················································· 43 8. ELECTRICAL PARTS LIST ······································· 44