DOWNLOAD Panasonic SA-PM38EG / SA-PM38EF / SA-PM38EB / SA-PM38EP / SC-PM38EP Service Manual ↓ Size: 5.35 MB | Pages: 91 in PDF or view online for FREE

Model
SA-PM38EG SA-PM38EF SA-PM38EB SA-PM38EP SC-PM38EP
Pages
91
Size
5.35 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / CD STEREO SYSTEM
File
sa-pm38eg-sa-pm38ef-sa-pm38eb-sa-pm38ep-sc-pm38ep.pdf
Date

Panasonic SA-PM38EG / SA-PM38EF / SA-PM38EB / SA-PM38EP / SC-PM38EP Service Manual ▷ View online

PSG0902026CE
CD Stereo System
Model No.
SA-PM38EG
SA-PM38EF
SA-PM38EB
SA-PM38EP
Product Color: (K)...Black Type
TABLE OF CONTENTS
PAGE
PAGE
1 Safety Precautions----------------------------------------------- 3
1.1. General Guidelines---------------------------------------- 3
1.2. Caution for AC Cord -------------------------------------- 4
1.3. Before Repair and Adjustment ------------------------- 5
1.4. Protection Circuitry ---------------------------------------- 5
1.5. Safety Part Information----------------------------------- 5
2 Warning -------------------------------------------------------------- 6
2.1. Prevention of Electro Static Discharge (ESD)
to Electrostaticy Sensitive (ES) Devices---------- 6
2.2. Precaution of Laser Diode------------------------------- 7
2.3. Service caution based on Legal restrictions -------- 8
2.4. Handling Precaution for Traverse Unit --------------- 9
3 Service Navigation ----------------------------------------------11
3.1. Service Information -------------------------------------- 11
4 Specifications ---------------------------------------------------- 12
5 Location of Controls and Components------------------ 13
5.1. Main Unit Key Button Operations -------------------- 13
5.2. Remote Control Key Button Operations------------ 14
6 Operating Instructions ---------------------------------------- 15
6.1. Disc Information ------------------------------------------ 15
7 Self diagnosis and special mode setting --------------- 16
7.1. Service Mode Summary Table------------------------ 16
7.2. Service Mode Table ------------------------------------- 17
7.3. Error Code Table ----------------------------------------- 20
8 Troubleshooting Guide --------------------------------------- 21
9 Service Fixture & Tools --------------------------------------- 22
Notes: This model’s CD mechanism unit is DLS6C. Please refer to the Original Service Manual (Order No.
MD0803034CE) for this mechanism.
2
10 Disassembly and Assembly Instructions--------------- 23
10.1. Disassembly flow chart --------------------------------- 24
10.2. Main Parts Location Diagram ------------------------- 25
10.3. Disassembly of Top Cabinet Assembly------------- 26
10.4. Disassembly of Headphone P.C.B. ------------------ 27
10.5. Disassembly of iPod P.C.B.---------------------------- 28
10.6. Disassembly of Front Panel Assembly ------------- 28
10.7. Disassembly of USB P.C.B. --------------------------- 29
10.8. Disassembly of Panel P.C.B. -------------------------- 30
10.9. Disassembly of FL Window---------------------------- 31
10.10. Disassembly of Centre Ornament ------------------- 32
10.11. Disassembly of CD Lid---------------------------------- 32
10.12. Disassembly of CD Mechanism Unit (DLS6C) --- 33
10.13. Disassembly of Power P.C.B. ------------------------- 34
10.14. Replacement of Power Amp IC (IC5101) ---------- 35
10.15. Disassembly of Main P.C.B. --------------------------- 36
10.16. Disassembly of Fan Unit ------------------------------- 38
10.17. Disassembly of Transformer P.C.B. ----------------- 39
10.18. Replacement of Transistor (Q5901) ----------------- 41
10.19. Disassembly of CD Servo P.C.B.--------------------- 42
11 Assembling and Disassembling of Traverse Unit---- 44
11.1. Disassembling Procedures ---------------------------- 44
11.2. Assembling Procedure---------------------------------- 45
12 Service Position ------------------------------------------------- 47
12.1. Checking & Repairing USB P.C.B.------------------- 47
12.2. Checking & Repairing Panel P.C.B. ----------------- 49
12.3. Checking & Repairing CD Servo P.C.B. ------------ 50
12.4. Checking & Repairing Power P.C.B. ---------------- 51
12.5. Checking & Repairing Transformer P.C.B.--------- 52
12.6. Checking & Repairing Main P.C.B. ------------------ 53
13 Voltage Measurement & Waveform Chart--------------- 54
13.1. USB P.C.B.------------------------------------------------- 54
13.2. MAIN P.C.B. (1/2) ---------------------------------------- 55
13.3. MAIN P.C.B. (2/2) ---------------------------------------- 56
13.4. PANEL P.C.B. --------------------------------------------- 57
13.5. POWER P.C.B. ------------------------------------------- 57
13.6. TRANSFORMER P.C.B.-------------------------------- 57
13.7. Waveform Chart ------------------------------------------ 58
14 Illustration of IC’s, Transistors and Diodes ------------ 59
15 Overall Simplified Block for PM38------------------------- 60
16 Block Diagram --------------------------------------------------- 61
16.1. CD SERVO BLOCK DIAGRAM ---------------------- 61
16.2. MAIN(1/2)/ PANEL/TRANSFORMER BLOCK
DIAGRAM-------------------------------------------------- 62
16.3. MAIN(2/2)/ HEADPHONE/ iPod/ USB BLOCK
DIAGRAM-------------------------------------------------- 63
17 Wiring Connection Diagram --------------------------------- 64
18 Schematic Diagram Notes ----------------------------------- 65
19 Schematic Diagram--------------------------------------------- 66
19.1. CD SERVO CIRCUIT ----------------------------------- 66
19.2. MAIN CIRCUIT (1/4) ------------------------------------ 67
19.3. MAIN CIRCUIT (2/4) ------------------------------------ 68
19.4. MAIN CIRCUIT (3/4) ------------------------------------ 69
19.5. MAIN CIRCUIT (4/4) ------------------------------------ 70
19.6. PANEL CIRCUIT and HEADPHONE CIRCUIT--- 71
19.7. USB CIRCUIT--------------------------------------------- 72
19.8. iPod CIRCUIT and POWER CIRCUIT-------------- 73
19.9. TRANSFORMER CIRCUIT---------------------------- 74
20 Printed Circuit Board ------------------------------------------ 75
20.1. CD SERVO P.C.B. and TRANSFORMER
P.C.B.-------------------------------------------------------- 75
20.2. MAIN P.C.B.----------------------------------------------- 76
20.3. PANEL P.C.B., HEADPHONE P.C.B. and
POWER P.C.B. ------------------------------------------- 77
20.4. iPod P.C.B. and USB P.C.B. -------------------------- 78
21 Terminal Function of IC’s ------------------------------------ 79
21.1. IC7001 (MN6627954AMA) IC SERVO
PROCESSOR -------------------------------------------- 79
21.2. IC7002 (BA5948FPE2) IC 4CH Drive -------------- 80
21.3. IC800 (RFKWMPM48EG) IC MICRO-
PROCESSOR -------------------------------------------- 80
22 Exploded View and Replacement Parts List----------- 82
22.1. Exploded View and Mechanical replacement
Parts List --------------------------------------------------- 82
22.2. Electrical Replacement Parts List ------------------- 86
3
1 Safety Precautions
1.1.
General Guidelines
1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3. After servicing, carry out the following leakage current checks to prevent the customer from being exposed to shock hazards.
1.1.1.
Leakage Current Cold Check
1. Unplug the AC cord and connect a jumper between the two prongs on the plug.
2. measure the resistance value, with an ohmmeter between the jumpered AC plug and each exposed metallic cabinet part on
the equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to the
chassis, the reading should be between 1M
Ω and 5.2MΩ. When the exposed metal does not have a return path to the chas-
sis, the reading must be 
1.1.2.
Leakage Current Hot Check
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.
2. Connect a 1.5k
Ω, 10 watts resistor, in parallel with a 0.15μF capacitors, between each exposed metallic part on the set and a
good earth ground such as a water pipe, as shown in Figure 1.
3. Use an AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across the resistor.
4. Check each exposed metallic part, and measure the voltage at each point.
5. Reverse the AC plug in the AC outlet and repeat each of the above measurements.
6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent)
may be used to make the hot checks, leakage current must not exceed 1/2 milliamp. In case a measurement is outside of the
limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is
returned to the customer.
Figure. 1
4
1.2.
Caution for AC Cord
Page of 91
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Panasonic SA-PM38EG / SA-PM38EF / SA-PM38EB / SA-PM38EP / SC-PM38EP Service Manual ▷ Download

  • DOWNLOAD Panasonic SA-PM38EG / SA-PM38EF / SA-PM38EB / SA-PM38EP / SC-PM38EP Service Manual ↓ Size: 5.35 MB | Pages: 91 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Panasonic SA-PM38EG / SA-PM38EF / SA-PM38EB / SA-PM38EP / SC-PM38EP in PDF for free, which will help you to disassemble, recover, fix and repair Panasonic SA-PM38EG / SA-PM38EF / SA-PM38EB / SA-PM38EP / SC-PM38EP Audio. Information contained in Panasonic SA-PM38EG / SA-PM38EF / SA-PM38EB / SA-PM38EP / SC-PM38EP Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.