Panasonic sa ak 311 gcp service manual

Page 2

SA-AK33 1 GOP

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
n GENERAL

Power Supply

2 (Stereo) (FL,FR)

AC 110-127/220-240 V, 50/60 HZ

Power consumption in standby 0.85 W
mode

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
n SYSTEM:
SC-AK331 (GCP)

5 to 90% RH (no condensation)

Music center: SA-AK331 (GCP)
Speaker: SB-AK330 (GC)
Notes:

1. Specifications are subject to change without notice. Mass and
dimensions are approximate.

Power consumption 255 W
2.Total harmonic distortion is measured by the digital spectrum
analyzer.
A WARNING

This service information is designed for experienced repair technicians only and is not designed for use by the general public.

It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

CONTENTS

Page

1 Before Use ----------------------------------------------------------------- 4

2 Before Repair and Adjustment ---------------------------------------- 4

3 Protection Circuitry ...................................................... 4
4 Prevention of Etectro Static Discharge (ESD) to

Electrostatically Sensitive (ES) Devices ............................ 4

5 Handling the Lead-free Solder ........................................ 5

5.1. About lead free solder (PbF) --------
6 Handling Precautions For Traverse Deck-

7 Precaution of Laser Diode ..................

8 Accessories ............................................................... 3
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 -----
10.5. Disassembly of Rear Panel --

10.6. Disassembly of CD Mechanism Uni

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

1012. CD Mechanism Main Component Replacement

Procedures ------------------------------------------------------- 19
10.13. Replacement for the pinch roller ass J] and head block-32
10.14. Replacement for the Deck motor ass|j , capstan belt A,

capstan belt B and winding belt ------------------------------ 33
10.15. Replacement for the cassette lid ass D .................... 35
10.16. Rectification for tape jam problem ........................... 37

11 Checking for major P.C.Bs ------------------------------------------- 38

Page
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 PCB. ----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 --------
13.1. How to set CD test mode -

13.2. CD Automatically Adjustment result indication

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-
17 Schematic Diagram-
17.1. (A) CD Servo Circuit

17.2. (B) Main (Tuner) Circuit ---------------------------------------- 61
17.3. (B) Main Circuit -------------------------------------------------- 62
17.4. (C) Panel Circuit ------------------------------------------------- 67