Panasonic sa ak320e

Page 2

SA-AK320E I SA-AKSZDEB lSA-AKSZOEG

AC 230V, 50Hz

AC 230 - 240 V. 50Hz
242 W

0.5 W

Power Supply (For E, E6 only)
Power Supply (For EB only)
Power consumption

Power Consumption in standby
mode

250 x 330 x 366 mm
7.9 kg

Dimensions (W x H x D)

Mass

I SYSTEM

SC-AK320 (E) Music center: SA-AK320 (E)
Speaker: SB-AK320 (GC)

SC-AK320 (EB) Music center: SA-AK320 (EB)

Speaker: SB-AK320 (GC)
Music center: SA-AK320 (EG)
Speaker: SB-AK320 (EG)

SC-AK320 (EG)

Notes:

1.8pecifications are subject to change without notice. Mass and
dimensions are approximate.

2.Total harmonic distortion is measured by the digital spectrum
analyzer.

3. The labels HIGH and LOW" on the rear of the speakers refer
to High frequency and Low frequency.

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 protessional 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 Caution for AC Mains Lead ..................................................... 4
2 Before Repair and Adjustment ............................................... 5
3 Protection Circuitry ............................................... 5

4 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
5 Handling the Lead-free Solder ---------------

5.1. About lead free solder (PbF) .......................................... 6

6 Handling Precautions For Traverse Deck ............................... 7
7 Precaution of Laser Diode ...................................................... 3
8 Accessories ............................................................................ 5
9 Operation Procedures ............................................... 10
10 Disassembly and Assembly of Main Component ................. 11

10.1. Disassembly flow chart ------------------------------

10.2. Disassembly of Top Cabinet and Rear Panel
10.3. Disassembly of CD Mechanism Uni
10.4. Disassembly Main P.C.B. Transformer P.C.B. & Power

P.C.B. -------------------- 15
10.5. Disassembly of Panel P.C.B. & Tact Switch P.C.B. ------- 16
10.6. Disassembly of Deck Mechanism Unit & Deck P.C.B. ----17
10.7. CD Mechanism Main Component Replacement

Procedures ------------------------------------------------------------------ 17
10.8. Replacement for the pinch roller ass'y and head block--30
10.9. Replacement for the Deck motor assy, capstan belt A.

capstan belt B and winding belt --

10.10. Replacement for the cassette lid assy- '34
10.11. Measure for tape trouble ---------------------------------------------- 34
11 Service Position -------------------------------------------------------------------- 35
11.1. Checking Procedure ----------------------------------------------------- 35
11.2. Checking the Main P.C.B., Power P.C.B. and Transformer
P.C.B. ----------------------------------------------------------- 35

11.3. Checking the Panel, Tact Switch, Deck & Deck
Mechanism P.C.B. ------------------------------------------------------- 36
12 Description of Error Code ----------------------------------------------------- 37

Page
12.1. Abnormality detection for Deck Mechanism block ---------- 37
12.2. Abnormality detection for CD/Changer block ----------------- 37
12.3. Power Supply related error detection ---------------------------- 37

13 Self-Diagnostic Function --
13.1. Self-diagnostic display
13.2. How to enter the Self-Diagnostic Function
13.3. Cassette Mechanism Test (For error code H01, H02. H03.

F01. F02) --------------------------------------------------------------------- 38
13.4. CD Mechanism Test (F15, F26, F16, F17, F27, F28, F29,

H15) ---------------------------------------------------------------------------- 39
13.5. To clear all Error code -------------------------------------------------- 39
13.6. How to get out from Self-Diagnostic function ----------------- 39

13.7. Power Amplifier Failure (F61
14 CD Test Mode Function
14.1. How to set CD test mode
14.2. CD Automatically Adjustment result ind cation

15 Measurements and Adjustments ---------------------------------- 41
15.1. Cassette Deck Section ------------------------------------------------- 41
15.2. Tuner Section -------------------------------------------------------------- 41
15.3. Alignment Points ---------------------------------------------------------- 42

16 Block Diagram ---------------------------------------------------------------------- 43

17 Schematic Diagram --------------------------------------------------------------- 50

17.1. (A) CD Servo Circuit
17.2. (B) Tuner/Main Circwt-
17.3. (B) Main Circuit-"-

17.4. (0) Panel Circuit & (D) Tact Switch Circuit -------------------- 59
17.5. (E) Transformer Circuit, (F) CD Detect Circuit, (G) Spindle
Position Circuit & (H) CD Loading Circuit ---------------------- 51

17.6. (I) Power Circuit ----------------------------------------------------------- 52
17-7- (J) Deck Circuit & (K) Mechanism Circuit ----------------------- 53

18 Printed Circuit Board ............................................................ 55
18.1. (A) CD Servo P.C.B. ---------------------------------------------------- 55

18.2. (B) Main/ Tuner P.C.B. ------------------------------------------------- 67