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PSG1203003CE

Product Color:   (K)...Black Type

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1 Safety Precautions----------------------------------------------- 3

1.1. General Guidelines---------------------------------------- 3
1.2. Caution for AC Cord (For EB only)-------------------- 4
1.3. Before Repair and Adjustment ------------------------- 5
1.4. Protection Circuitry ---------------------------------------- 5
1.5. Caution For Fuse Replacement------------------------ 5
1.6. Safety Part Information----------------------------------- 6

2 Warning -------------------------------------------------------------- 7

2.1. Prevention of Electro Static Discharge (ESD)

to Electrostaticy Sensitive (ES) Devices---------- 7

2.2. Precaution of Laser Diode------------------------------- 8
2.3. Service caution based on Legal restrictions -------- 9
2.4. Handling Precaution for Traverse --------------------10

3 Service Navigation ---------------------------------------------- 11

3.1. Service Information -------------------------------------- 11

4 Specifications ----------------------------------------------------12
5 General/Introduction -------------------------------------------13

5.1. Inserting or removing media ---------------------------13
5.2. CD, iPod/iPhone playback operations---------------13

6 Location of Controls and Components------------------ 14

6.1. Main Unit & Remote Control Key Button

Operations ------------------------------------------------- 14

7 Instation Instructions -------------------------------------- 15

7.1. Connections ----------------------------------------------- 15

8 Service Mode ----------------------------------------------------- 16

8.1. Self Diagnostic Mode ----------------------------------- 16
8.2. Self Diagnostic Function Error Code ---------------- 17
8.3. Doctor Mode Table--------------------------------------- 18

9 Service Fixture & Tools --------------------------------------- 24

10 Disassembly and Assembly Instructions--------------- 25

10.1. Disassembly flow chart --------------------------------- 26
10.2. Types of Screws------------------------------------------ 26
10.3. Main Parts Location Diagram ------------------------- 27
10.4. Disassembly of Net Frame Assembly (L) & (R)--- 28
10.5. Disassembly of Base Stand Assembly ------------- 29
10.6. Replacement of CD Door Ornament ---------------- 29
10.7. Replacement of CD Door Base----------------------- 31
10.8. Disassembly of Front Cabinet Assembly----------- 34

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10.9. Disassembly of FL Window---------------------------- 36

10.10. Disassembly of Gear Box Assembly ---------------- 37

10.11. Replacement of Rack Top & Slider Top ------------ 42

10.12. Replacement of Bridge P.C.B., Door Shaft &

Slider Bottom ---------------------------------------------- 44

10.13. Disassembly of Position Switch P.C.B. &

Timing Gear Unit ----------------------------------------- 48

10.14. Disassembly of Top Button Unit, Button P.C.B.

and Panel P.C.B. ----------------------------------------- 50

10.15. Disassembly of CD Mechanism ---------------------- 52
10.16. Disassembly of CD Servo P.C.B.--------------------- 53
10.17. Disassembly of Tuner P.C.B. -------------------------- 55
10.18. Disassembly of SMPS P.C.B. ------------------------- 56
10.19. Replacement of Diode (D1700) ---------------------- 59
10.20. Disassembly of Speaker Unit ------------------------- 61
10.21. Disassembly of Main P.C.B. --------------------------- 62

11 Service Position ------------------------------------------------- 64

11.1. Checking & Repairing of Panel P.C.B. -------------- 64
11.2. Checking & Repairing of SMPS P.C.B. ------------- 65
11.3. Checking & Repairing of CD Servo P.C.B.--------- 66
11.4. Checking & Repairing of Main P.C.B. (Side B) --- 68
11.5. Checking & Repairing of Main P.C.B. (Side A) --- 68

12 Block Diagram --------------------------------------------------- 71

12.1. SERVO & SYSTEM CONTROL BLOCK

DIAGRAM -------------------------------------------------- 71

12.2. IC TERMINAL CHART---------------------------------- 72
12.3. AUDIO BLOCK DIAGRAM ---------------------------- 73
12.4. POWER SUPPLY (1/2) BLOCK DIAGRAM ------- 74
12.5. POWER SUPPLY (2/2) BLOCK DIAGRAM ------- 75

13 Wiring Connection Diagram --------------------------------- 76
14 Schematic Diagram--------------------------------------------- 77

14.1. Schematic Diagram Notes ----------------------------- 77
14.2. CD SERVO CIRCUIT (1/2) ---------------------------- 79
14.3. CD SERVO CIRCUIT (2/2) ---------------------------- 80
14.4. MAIN CIRCUIT (1/4) ------------------------------------ 81
14.5. MAIN CIRCUIT (2/4) ------------------------------------ 82
14.6. MAIN CIRCUIT (3/4) ------------------------------------ 83
14.7. MAIN CIRCUIT (4/4) ------------------------------------ 84
14.8. TUNER CIRCUIT----------------------------------------- 85
14.9. PANEL, BUTTON, POSITION SWITCH &

MOTOR CIRCUIT---------------------------------------- 86

14.10. SMPS CIRCUIT ------------------------------------------ 87

15 Printed Circuit Board ------------------------------------------ 88

15.1. CD SERVO P.C.B. --------------------------------------- 88
15.2. MAIN P.C.B. (Side A)------------------------------------ 89
15.3. MAIN P.C.B. (Side B)------------------------------------ 90
15.4. TUNER P.C.B. -------------------------------------------- 91
15.5. PANEL, BUTTON, POSITION SWITCH &

MOTOR P.C.B.-------------------------------------------- 92

15.6. SMPS P.C.B. ---------------------------------------------- 93

16 Appendix Information of Schematic Diagram --------- 95

16.1. Voltage Measurement & Waveform Chart --------- 95
16.2. Illustration of IC’s, Transistors and Diodes ------ 101
16.3. Terminal Function of IC’s ----------------------------- 102

17 Exploded View and Replacement Parts List --------- 103

17.1. Exploded View and Mechanical replacement

Parts List ------------------------------------------------- 103

17.2. Electrical Replacement Parts List ------------------ 109

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1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or

damaged by the short circuit.

2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly

installed.

3. After servicing, carry out the following leakage current checks to prevent the customer from being exposed to shock hazards.

1. Unplug the AC cord and connect a jumper between the two prongs on the plug.
2. measure the resistance value, with an ohmmeter between the jumpered AC plug and each exposed metallic cabinet part on

the equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to the
chassis, the reading should be between 1M

Ω and 5.2MΩ. When the exposed metal does not have a return path to the chas-

sis, the reading must be 

1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.
2. Connect a 1.5k

Ω, 10 watts resistor, in parallel with a 0.15μF capacitors, between each exposed metallic part on the set and a

good earth ground such as a water pipe, as shown in Figure 1.

3. Use an AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across the resistor.
4. Check each exposed metallic part, and measure the voltage at each point.
5. Reverse the AC plug in the AC outlet and repeat each of the above measurements.
6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent)

may be used to make the hot checks, leakage current must not exceed 1/2 milliamp. In case a measurement is outside of the
limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is
returned to the customer.

Figure. 1

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