Panasonic SA-AK220E, Service Manual

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Mass 7.3 kg
n SYSTEM
SC-AK220 (E) Music center: SA-AK220 (E)
Speaker: SB-AK220 (GC)
SC-AK220 (EB) Music center: SA-AK220 (EB)
Speaker: SB-AK220 (GC)
1 Caution for AC Mains Lead 4
2 Before Repair and Adjustment 5
3 Protection Circuitry 5
4 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 5
5 Handling the Lead-free Solder 6
5.1. About lead free solder (PbF) 6
6 Handling Precautions For Traverse Deck 7
7 Precaution of Laser Diode 8
8 Accessories 9
9 Operation Procedures 10
10 Disassembly and Assembly of Main Component 11
10.1. Disassembly flow chart 11
10.2. Disassembly of Top Cabinet and Rear Panel 12
10.3. Disassembly of CD Mechanism Unit 14
10.4. Disassembly Main P.C.B., Transformer P.C.B. & Power
P.C.B. 15
10.5. Disassembly of Panel P.C.B. & Tact Switch P.C.B. 16
10.6. Disassembly of Deck Mechanism Unit & Deck P.C.B. 17
10.7. CD Mechanism Main Component Replacement
Procedures 18
10.8. Replacement for the pinch roller ass
馳
and head block 31
10.9. Replacement for the Deck motor ass
馳
, capstan belt A,
capstan belt B and winding belt 31
10.10. Replacement for the cassette lid ass
馳
34
10.11. Counter-measure for tape trouble 34
11 Service Position 35
11.1. Checking Procedure 35
11.2. Checking the Main P.C.B., Power P.C.B. and Transformer
P.C.B. 35
11.3. Checking the Panel, Tact Switch, Deck & Deck
Mechanism P.C.B. 36
12 Description of Error Code 37
12.1. Abnormality detection for Deck Mechanism block 37
12.2. Abnormality detection for CD/Changer block 37
12.3. Power Supply related error detection 37
13 Self-Diagnostic Function 38
Notes:
1. Specifications are subject to change without notice. Mass and
dimensions are approximate.
2. Total harmonic distortion is measured by the digital spectrum
analyzer.
3. The labels “HIGH” and “LOW” on the rear of the speakers refer
to High frequency and Low frequency.
13.1. Self-diagnostic display 38
13.2. How to enter the Self-Diagnostic Function 38
13.3. Cassette Mechanism Test (For error code H01, H02, H03,
F01, F02) 38
13.4. CD Mechanism Test (F15, F26, F16, F17, F27, F28, F29,
H15) 39
13.5. To clear all Error code 39
13.6. How to get out from Self-Diagnostic function 39
13.7. Power Amplifier Failure (F61) 39
14 CD Test Mode Function 40
14.1. How to set CD test mode 40
14.2. CD Automatically Adjustment result indication 40
15 Measurements and Adjustments 41
15.1. Cassette Deck Section 41
15.2. Tuner Section 41
15.3. Alignment Points 42
16 Block Diagram 43
17 Schematic Diagram 50
17.1. (A) CD Servo Circuit 51
17.2. (B) Tuner/Main Circuit 53
17.3. (B) Main Circuit 54
17.4. (C) Panel Circuit & (D) Tact Switch Circuit 59
17.5. (E) Transformer Circuit, (F) CD Detect Circuit, (G) Spindle
Position Circuit & (H) CD Loading Circuit 61
17.6. (I) Power Circuit 62
17.7. (J) Deck Circuit & (K) Mechanism Circuit 63
18 Printed Circuit Board 65
18.1. (A) CD Servo P.C.B. 65
18.2. (B) Main P.C.B. 67
18.3. (C) Panel P.C.B. 69
18.4. (D) Tact P.C.B. 71
18.5. (E) Transformer P.C.B. 72
18.6. (F) CD Detect P.C.B., (G) Spindle Position P.C.B. and (H)
CD Loading P.C.B. 74
18.7. (I) Power P.C.B. 75
18.8. (J) Deck P.C.B. & (K) Deck Mechanism P.C.B. 77
19 Wiring Connection Diagram 78
CONTENTS
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SA-AK220E / SA-AK220EB