Panasonic SA-AK230GC, Руководство по обслуживанию

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CD 44.1 kHz
Decoding 16 bit linear
Digital filter 8 fs
D/A converter MASH (1 bit DAC)
Pickup
Wavelength 780 nm
Beam Source Semiconductor laser
Audio output (Disc)
Number of channels 2 (Stereo) (FL,FR)
n GENERAL
Power Supply
For GC only AC 220 - 240 V, 50/60 Hz
For GN only AC 230 - 240 V, 50 Hz
Power consumption 174 W
Power consumption in standby
mode 0.7 W
1 Before Repair and Adjustment 4
2 Protection Circuitry 4
3 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 5
4 Handling the Lead-free Solder 5
4.1. About lead free solder (PbF) 5
5 Handling Precautions For Traverse Deck 6
6 Precaution of Laser Diode 7
7 Accessories 8
8 Operation Procedures 9
9 Disassembly and Assembly of Main Component 11
9.1. Disassembly flow chart 11
9.2. Gear for servicing (jig) Information 12
9.3. Disassembly of Top Cabinet 13
9.4. Disassembly of CD Lid 13
9.5. Disassembly of Rear Panel 15
9.6. Disassembly of CD Mechanism Unit 15
9.7. Disassembly of Main P.C.B. 16
9.8. Disassembly of Power P.C.B. 16
9.9. Disassembly of Transformer P.C.B. 17
9.10. Disassembly of Front Panel Unit 18
9.11. Disassembly of Deck Mechanism Unit 18
9.12. CD Mechanism Main Component Replacement
Procedures 19
9.13. Replacement for the pinch roller ass
馳
and head block 32
9.14. Replacement for the Deck motor ass
馳
, capstan belt A,
capstan belt B and winding belt 33
9.15. Replacement for the cassette lid ass
馳
36
9.16. Rectification for tape jam problem 37
Dimensions (W x H x D) 250 x 330 x 341 mm
Mass 6.9 kg
Operating temperature range +5 to +35°C
Operating humidity range 5 to 90% RH (no condensation)
n SYSTEM
SC-AK230 (GC) Music center: SA-AK230 (GC)
Speaker: SB-AK230 (GC)
SC-AK230 (GN) Music center: SA-AK230 (GN)
Speaker: SB-AK230 (GC)
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.
10 Checking for major P.C.Bs 38
10.1. Checking of Main P.C.B. 38
10.2. Checking of Transformer P.C.B. 39
10.3. Checking of Panel, Deck & Deck Mechanism P.C.B. 40
10.4. Checking of Power P.C.B. 41
11 Self-Diagnostic Function 42
11.1. Self-diagnostic display 42
11.2. How to enter the Self-Diagnostic Function 42
11.3. Cassette Mechanism Test (For error code H01, H02, H03,
F01) 42
11.4. CD Mechanism Test (F15, F26, F16, F17, F27, F28, F29,
F30, H15 & H16) 42
11.5. To clear all Error code 43
11.6. To exit from Self-Diagnostic function 43
11.7. Power Amplifier Failure (F61) 43
11.8. Description of Error Code 43
12 CD Test Mode Function 45
12.1. How to set CD test mode 45
12.2. CD Automatically Adjustment result indication 45
12.3. CD Mecha Aging Test Mode (CR20) 45
12.4. Micon ROM Checksum and Version Display Mode 46
13 Measurements and Adjustments 47
13.1. Cassette Deck Section 47
13.2. Tuner Section 47
13.3. Alignment Points 48
14 Block Diagram 49
15 Voltage Measurement 56
16 Schematic Diagram 58
16.1. (A) CD Servo Circuit 59
CONTENTS
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SA-AK230GC / SA-AK230GN