Panasonic SA-EN37 - 12 Voltage and Waveform Chart; Main P.C.B

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12 Voltage and Waveform Chart

Note:

Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point, because it

may differ from an actual measuring value due to difference of Measuring instrument and its measuring condition and product itself.

12.1. Main P.C.B.

32

SC-EN37P

Table of Contents

Default Chapter2
- Table of Contents2
1 Safety Precautions4
- General Guidelines4
- Caution for Fuse Replacement5
- Before Repair and Adjustment5
- Protection Circuitry5
- Safety Parts Information5
2 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices6
3 Precaution of Laser Diode7
4 Handling Precautions for Traverse Unit7
5 About Lead Free Solder (Pbf)9
- Service Caution Based on Legal Restrictions9
6 Accessories10
7 Operation Procedures11
- Remote Control Key Buttons Operations11
- Main Unit Key Buttons Operations11
- Connection12
8 Self Diagnosis and Special Mode Setting13
- Service Mode Summary Table13
- Service Mode Table13
- Error Code Table16
9 Assembling and Disassembling17
- Caution17
- Disassembly Flow Chart18
- Main Components & P.C.B. Locations19
- Disassembly of Rear Cabinet20
- Disassembly of D-Port P.C.B20
- Disassembly of Panel P.C.B. & LED P.C.B20
- Disassembly of Main P.C.B., Sensor P.C.B. & Tuner P.C.B21
- Disassembly of Switch P.C.B. & Traverse Unit21
- Disassembly of Power Switch P.C.B. & Tact Switch P.C.B22
- Replacement of Traverse Cover22
- Disassembly of CD Servo P.C.B23
- Disassembly of Motor Unit & Motor P.C.B24
- Disassembly of CD Block & CD Lid25
- Disassembly of Speakers26
10 Service Fixture and Tools29
11 Service Positions29
- Check and Repair of CD Servo P.C.B30
- Check and Repair of Main P.C.B., Sensor P.C.B., Tuner31
  - P.C.b31
12 Voltage and Waveform Chart32
- Main P.C.B32
- CD Servo P.C.B33
- Motor P.C.B33
- Panel P.C.B33
- Tuner P.C.B33
- Waveform Chart34
13 Wiring Connection Diagram35
14 Block Diagram37
- CD Servo37
- Tuner38
- Main (1/2), Transformer, Sensor & D-Port39
- Main (2/2), Panel, LED, Power Switch, Tact Switch, Switch & Motor40
15 Notes of Schematic Diagrams41
16 Schematic Diagram43
- A) CD Servo Circuit44
- B) Tuner Circuit45
- C) Main Circuit46
- D) Panel Circuit & (E) D-Port Circuit49
  - Circuit & (I) Switch Circuit50
- J) Motor Circuit, (K) Sensor Circuit & (L) Transformer Circuit51
17 Printed Circuit Board53
- A) CD Servo P.C.B. & (B) Tuner53
- C) Main54
- D) Panel P.C.B., (E) D-Port P.C.B., (F) LCD P.C.B., (G) Power Switch P.C.B. & (H) Tact Switch P.C.B55
- I) Switch Circuit P.C.B., (J) Motor Circuit P.C.B., (K)56
  - Sensor Circuit P.C.B. & (L) Transformer57
18 Illustration of Ics, Transistors and Diodes59
19 Terminal Function of IC's60
20 Exploded Views61
- Cabinet Parts Location61
- Packaging63
21 Replacement Parts List65

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