Panasonic sa ak230ee

Page 2

SA-AKZ3 GEE

780 nm
Semiconductor laser

Wavelength

Beam Source
Audio output (Disc)
Number of channels
n GENERAL

Power Supply

2 (Stereo) (FL,FR)

AC 230 V, 50HZ

+5 to +35°C
5 to 90% RH (no condensation)

Operating temperature range

Operating humidity range

n SYSTEM

SC-AK230 (EE) Music center: SA-AK230 (EE)
Speaker: SB-AK230 (GC)

Notes:

Power consumption 174 W 1. Specifications are subject to change without notice. Mass and
Power consumption in standby 0,7 W dimensions are approximate.
mode 2.Total harmonic distortion is measured by the digital spectrum
Dimensions (W x H x D) 250 x 330 x 341 mm analyzer.
Mass 6.9 kg

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 some non-technical indivrciuais of potential dangers in attempting to serwce 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 Repair and Adjustment ---------------------------------------- 4

2 Protection Circuitry ------------------------------------------------------ 4
3 Prevention of Electra Static Discharge (ESD) to

Electrostatically Sensitive (ES) Devices ---------------------------- 5

4 Handling the Lead-free Solder ---------------------------------------- 5

4.1. About lead free solder (PbF) --------
5 Handling Precautions For Traverse Deck-

6 Precaution of Laser Diode ..................

7 Accessories --------------------------------------------------------------- 8
8 Operation Procedures .................................................. 9
9 DisaSSembiy 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 -----
9.5. Disassembly of Rear Panel --

9.6. Disassembly of CD Mechanism Uni

9.7. Disassembly of Main P.C.B. ----------------------------------- 15
9.8. Disassembly of Power P_c_B, ................................. 15
9.9. Disassembly of Transformer P.C.B. ......................... 17
9.10. DiSassembly of Front Panel Unit ............................. 18
9.11. Disassembly of Deck Mechanism Unit ...................... 13

9.12. CD Mechanism Main Component Replacement

Procedures ------------------------------------------------------- 19
9.13. Replacement for the pinch roller ass [I and head block-33
9.14. Replacement for the Deck motor assfl , capstan belt A,

capstan belt B and winding belt ------------------------------ 34

9.15. Replacement for the cassette lid ass [I -------------------- 37
9.16. Rectification for tape jam problem --------------------------- 38

10 Checking for major P.C.Bs ------------------------------------------- 39
10.1. Checking of Main P.C.B. --------------------------------------- 39
10.2. Checking of Transformer P.C.B. ------------------------------ 40

10.3. Checking of Panel, Deck 8. Deck Mechanism P.C.B. ----41

Page
10.4. Checking of Power P.C.B. ------------------------------------- 42
11 Self-Diagnostic Function --------------------------------------------- 43
11.1. Self»diagnostic display --------------------------------------- 43
11.2. How to enter the Self-Diagnostic Function ----------------- 43
11.3. Cassette Mechanism Test (For error code H01, H02, H03,
F01)-- --43

11.4. CD Mechanism Test (F15, F26, F16, F17, F27, F28, F29,
F30, H15 & H16) ------------------------------------------------ 43
11.5. To clear all Error code ----------------------------------------- 44
11.6. To exit from Self-Diagnostic function ------------------------ 44
11.7. Power Amplifier Failure (F61) --------------------------------- 44
11.8. Description of Error Code -------------------------------------- 44
12 CD Test Mode Function ----------------------------------------------- 46
12.1. How to set CD test mode -------------------------------------- 46

12.2. CD Automatically Adjustment result indication
12.3. CD Mecha Aging Test Mode (CR20)
12.4. Micon ROM Checksum and Version Display Mode

13 Measurements and Adjustments ................................... 43
13.1. Cassette Deck Section ----------------------------------------- 48
13.2. Tuner Section .................................................... 43
13.3. Alignment Points ................................................ 49

14 Block Diagram ........................................................... 50

15 Voltage Measurement ................................................. 57

16 Schematic Diagram .................................................... 59

16.1. (A) CD Servo Circuit---
16.2. (B) Main (Tuner) Circui

16.3. (B) Main Circuit -------------------------------------------------- 63

16.4. (C) Panel Circuit ------------------------------------------------- 67
16.5. (D) Transformer Circuit, (E) CD Detect Circuit, (F) Spindle

Position Circuit & (G) CD Loading circuit ................... 59

16.6. (H) Power Circuit ------------------------------------------------ 70
16.7. (I) Deck Circuit & (J) Deck Mechanism Circuit ............. 71

17 Printed Circuit Board -------------------------------------------------- 73