Panasonic SA-AK240E, Руководство по обслуживанию, Страница: 2 / 104

CD-DA 44.1 kHz
Decoding 16 bit linear
Digital filter 8 fs
D/A converter MASH (1 bit DAC)
Pick up
Wavelength 780 nm
Beam Source Semiconductor laser
Audio output (Disc)
Number of channels 2 (Stereo) (FL,FR)
n GENERAL
Power supply
For E/EG only AC 230 V, 50Hz
For EB only AC 230 to 240 V, 50Hz
Power consumption 95 W
Power consumption in standby
mode 0.5 W
Dimensions (W x H x D) 250 x 330 x 343 mm
1 Safety Precautions 4
1.1. General Guidelines 4
1.2. Caution for AC Mains Lead 5
1.3. Before repair and adjustment 5
1.4. Protection Circuitry 6
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 6
3 Handling Precautions For Traverse Deck 7
4 Precaution of Laser Diode 8
5 Handling the Lead-free Solder 9
5.1. About lead free solder (PbF) 9
6 New Features 10
6.1. CRS1 Mechanism Overview 10
6.2. Music Port 12
7 Accessories 13
8 Operating Instructions Procedures 14
9 Self diagnosis and special mode setting 16
9.1. Special Mode Table 16
9.2. Error code Table 18
10 Assembling and Disassembling 22
10.1. Caution 22
10.2. Disassembly flow chart 23
10.3. Main Parts Location 24
10.4. Disassembly of Top Cabinet 25
10.5. Disassembly of Rear Panel 25
10.6. Disassembly of CD Changer Unit (CRS1) 25
10.7. Disassembly of Main P.C.B. 27
10.8. Disassembly of Transformer P.C.B. 27
Mass 6.9 kg
Operating temperature range +5 to +35°C
Operating humidity range 5 to 90% RH (no condensation)
n SYSTEM
SC-AK240 (E-S) Music center: SA-AK240 (E-S)
Speaker: SB-AK240 (EG-S)
SC-AK240 (EB-S) Music center: SA-AK240 (EB-S)
Speaker: SB-AK240 (EG-S)
SC-AK240 (EG-S) Music center: SA-AK240 (EG-S)
Speaker: SB-AK240 (EG-S)
For information on speaker system, please refer to the original
Service Manual (Order No. MD0512445A2)
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.
10.9. Disassembly of Power P.C.B. 28
10.10. Disassembly of Front Panel Unit 29
10.11. Disassembly for Panel P.C.B. 30
10.12. Disassembly of Deck mechanism unit 31
10.13. Disassembly of Deck P.C.B. 31
10.14. Disassembly of Traverse Unit 31
10.15. Disassembly of optical pickup unit (CD mechanism) 33
10.16. Disassembly of Deck Mechanism 36
10.17. Replacement for cassette lid 38
10.18. Rectification for tape jam problem 39
11 Service Fixture and Tools 40
12 Service Positions 40
12.1. Checking and Repairing of Main P.C.B. 40
12.2. Checking and Repairing of Transformer P.C.B. 41
12.3. Checking and Repairing of Panel, Deck & Deck
Mechanism P.C.B. 42
12.4. Checking and Repairing of Power P.C.B. 43
13 Adjustment Procedures 44
13.1. Cassette Deck Section 44
13.2. Tuner Section 45
14 Voltage and Waveform Chart 47
14.1. CD Servo P.C.B. & Main P.C.B. 47
14.2. Power P.C.B. & Transformer P.C.B. 49
14.3. Waveform Chart 50
15 Wiring Connection Diagram 52
16 Block Diagram 53
17 Schematic Diagram 57
17.1. Notes of Schematic Diagrams 57
CONTENTS
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SA-AK240E / SA-AK240EB / SA-AK240EG