CD 44.1 kHz
Decoding 16 bit linear
Digital filter 8fs
D/A converter MASH (1 bit DAC)
Pickup
Wavelength 780 nm
Beam Source Semiconductor laser
udio output (Disc)
Number of channels 2(Stereo)(FL,FR)
n GENERAL
Power Supply AC 110-127/220-240 V, 50/60 Hz
Power consumption 255 W
1 Before Use
4
2 Before Repair and Adjustment
4
3 Protection Circuitry
4
4 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
4
5 Handling the Lead-free Solder
5
5.1. About lead free solder (PbF)
5
6 Handling Precautions For Traverse Deck
6
7 Precaution of Laser Diode
7
8 Accessories
8
9 Operation Procedures
9
10 Disassembly and Assembly of Main Component
11
10.1. Disassembly flow chart
11
10.2. Gear for servicing (jig) Information
12
10.3. Disassembly of Top Cabinet
13
10.4. Disassembly of CD Lid
13
10.5. Disassembly of Rear Panel
15
10.6. Disassembly of CD Mechanism Unit
15
10.7. Disassembly of Main P.C.B.
16
10.8. Disassembly of Power P.C.B.
16
10.9. Disassembly of Transformer P.C.B.
17
10.10. Disassembly of Front Panel Unit
18
10.11. Disassembly of Deck Mechanism Unit
18
10.12. CD Mechanism Main Component Replacement
Procedures
19
10.13. Replacement for the pinch roller ass 馳 and head block
32
10.14. Replacement for the Deck motor ass 馳, capstan belt A,
capstan belt B and winding belt
33
10.15. Replacement for the cassette lid as s 馳
36
10.16. Rectification for tape jam problem
37
11 Checking for major P.C.Bs
38
Power consumption in standby
mode
0.85 W
Dimensions (W x H x D) 250 x 330 x 341 mm
Mass 7.1 kg
Operating temperature range +5 to +35°C
Operating humidity range 5 to 90% RH (no condensation)
n SYSTEM:
SC-AK331 (GCP) Music center: SA-AK331 (GCP)
Speaker: SB-AK330 (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.
11.1. Checking of Main P.C.B.
38
11.2. Checking of Transformer P.C.B.
39
11.3. Checking of Panel, Deck & Deck Mechanism P.C.B.
40
11.4. Checking of Power P.C.B.
41
12 Self-Diagnostic Function
42
12.1. Self-diagnostic display
42
12.2. How to enter the Self-Diagnostic Function
42
12.3. Cassette Mechanism Test (For error code H01, H02, H03,
F01)
42
12.4. CD Mechanism Test (F15, F26, F16, F17, F27, F28, F29,
F30, H15 & H16)
42
12.5. To clear all Error code
43
12.6. To exit from Self-Diagnostic function
43
12.7. Power Amplifier Failure (F61)
43
12.8. Description of Error Code
43
13 CD Test Mode Function
45
13.1. How to set CD test mode
45
13.2. CD Automatically Adjustment result indication
45
13.3. CD Mecha Aging Test Mode (CR20)
45
13.4. Micon ROM Checksum and Version Display Mode
46
14 Measurements and Adjustments
47
14.1. Cassette Deck Section
47
14.2. Tuner Section
47
14.3. Alignment Points
48
15 Block Diagram
49
16 Voltage Measurement
56
17 Schematic Diagram
58
17.1. (A) CD Servo Circuit
59
17.2. (B) Main (Tuner) Circuit
61
17.3. (B) Main Circuit
62
17.4. (C) Panel Circuit
67
CONTENTS
Page Page
2
SA-AK33 1GCP
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