Panasonic sc en 29 eb service manual

Page 2

AWARNING

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 Caution for AC Mains Lead ----------------------------------------------------- 3
2 Protection Circuitry ----------------------------------------------------------------- 4

3 Accessories

4 Handling Precautions For Traverse Deck (Optical Pickup

5 Precaution of Laser Diode ------------------------------------------
6 Prevention of Electro Static Discharge (ESD) To

Electrostatically (ES) Devices ................................................. 7

7 Handling the Lead-tree Solder ------------------------------------------------ 7

7.1. About lead free solder (PbF) ------------------------------------------ 7

8 Control Guide ......................................................................... 3

9 Operation Checks and Component Replacement Proceduresa

9.1. SA-EN29 ....................................................................... g

9.2. SB-EN7 ------------- -18

10 Self Diagnostic Function 1

10.1. Setting of self diagnostic Function -21

10.2. Error Code ------------------------------------------------------------------- 22

11 Description of Error Code ----------------------------------------------------- 22

11.1. Error detection for CD Mechanism block ....................... 22

12 Block Diagram ---------------------------------------------------------------------- 25

13 Schematic Diagram --------------------------------------------------------------- 29

13.1. Schematic Diagram Notes -------------------------------------------- 29

Page
13.2. CD Servo Circuit Diagram -------------------------------------------- 30
13.3. Main etc. Circuite Diagram ------------------------------------------- 33

13.4. Tuner Circuit Diagram
13.5. Dab Terminal Circuit Diagram
13.6. Schematic Diagram (SB»EN7)-

13.7. Voltage Varue -------------------------------------------------------------- 39
14 Printed Circuit Board Diagram ---------------------------------------------- 41
14.1. CD SERVO P.C.B. ------------------------------------------------------- 41
14.2. Printed Circuit Board Diagram -------------------------------------- 43
15 Wiring Connection Diagram -------------------------------------------------- 45
16 Measurements and Adjustments ------------------------------------------ 47
16.1. Tuner Adjustment --------------------------------------------------------- 47

17 Terminal Functions of le
18 Replacement Parts List-

18.1. SA-EN29 -----

18.2. SB-EN7 ....................................................................... 57
19 Cabinet Parts Location --------------------------------------------------------- 53

19.1. SA-EN29 --------------------------------------------------------------- 58

19.2. SB-EN7 ....................................................................... 50
20 Packaging ----------------------------------------------------------------------------- 61