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PSG1103008CE

DVD Home Theater Sound System
Model No. SA-XH155EE
SA-XH155GS
Product Color: (K)...Black Type

Note: Please refer to the original service manual for:
DVD Mechanism Unit (BRS1D), Order No. PSG1012001CE
Speaker system SB-XH155EG-K, Order No. PSG1102015CE

TABLE OF CONTENTS
PAGE PAGE
1 Safety Precautions----------------------------------------------- 3 2.4. Handling Precautions for Traverse Unit ------------ 10
1.1. GENERAL GUIDELINES -------------------------------- 3 3 Service Navigation --------------------------------------------- 12
1.2. Before Repair and Adjustment ------------------------- 4 3.1. Service Information -------------------------------------- 12
1.3. Protection Circuitry ---------------------------------------- 5 4 Specifications ---------------------------------------------------- 13
1.4. Safety Parts Information --------------------------------- 5 4.1. Others (Licences) ---------------------------------------- 14
1.5. Caution for AC Cord (For GS Only)------------------- 6 5 Location of Controls and Components------------------ 15
2 Warning -------------------------------------------------------------- 7 5.1. Remote Control and Main Unit Key Button
2.1. Prevention of Electrostatic Discharge (ESD) Operations ------------------------------------------------- 15
to Electrostatic Sensitive (ES) Devices -------------- 7 5.2. Main Unit Key Button Operations -------------------- 16
2.2. Precaution of Laser Diode------------------------------- 8 5.3. Power-Saving Features -------------------------------- 17
2.3. Service caution based on Legal restrictions -------- 9 5.4. Speaker Connection------------------------------------- 17
5.5. Using the VIERA Link "HDAVI ControlTM"---------- 18 12.4. Main P.C.B. (1/2)----------------------------------------- 91
5.6. Connection with an ARC compatible TV ----------- 20 12.5. Main P.C.B. (2/2)----------------------------------------- 92
5.7. Disc Information ------------------------------------------ 21 12.6. Panel P.C.B.----------------------------------------------- 93
6 Operating Instructions ---------------------------------------- 23 12.7. D-Amp P.C.B. (1/2) -------------------------------------- 94
6.1. Removing of disc during abnomality ---------------- 23 12.8. D-Amp P.C.B. (2/2) -------------------------------------- 95
7 Self-Diagnostic and Special Mode Setting ------------- 25 12.9. SMPS P.C.B.---------------------------------------------- 96
7.1. Cold-Start--------------------------------------------------- 25 12.10. Waveform Table (1/2)----------------------------------- 97
7.2. Service Mode Table-------------------------------------- 25 12.11. Waveform Table (2/2)----------------------------------- 98
7.3. Self-Diagnostic Mode ----------------------------------- 31 13 Illustration of ICs, Transistor and Diode ---------------- 99
7.4. Self Diagnostic Function-Error Code ---------------- 32 14 Overall Simplified Block Diagram------------------------ 101
7.5. Sales Demonstration Lock Function ---------------- 34 15 Block Diagram -------------------------------------------------- 102
7.6. Firmware Version-Up Information -------------------- 35 15.1. Backend--------------------------------------------------- 102
8 Troubleshooting Guide---------------------------------------- 37 15.2. IC Terminal Chart --------------------------------------- 103
8.1. Troubleshooting Guide for F61 and/or F76 -------- 37 15.3. System Control ------------------------------------------ 104
8.2. DVD/CD Laser Diode current 15.4. Audio & Video ------------------------------------------- 105
measurement.This section will illustrate 15.5. Power Supply -------------------------------------------- 107
procedures of measuring& deriving DVD/CD 16 Wiring Connection Diagram ------------------------------- 109
Laser Diode Current. ------------------------------------ 40 17 Schematic Diagram ------------------------------------------- 111
8.3. Basic Troubleshooting Guide for Traverse 17.1. Schematic Diagram Notes --------------------------- 111
Unit (Backend P.C.B.) ----------------------------------- 42 17.2. Backend Circuit ----------------------------------------- 113
8.4. Basic Troubleshooting Guide for HDMI AV 17.3. Main Circuit----------------------------------------------- 119
output-------------------------------------------------------- 43 17.4. Operation Button & Power Button Circuit--------- 127
9 Service Fixture & Tools --------------------------------------- 44 17.5. Panel Circuit --------------------------------------------- 128
9.1. Service Tools and Equipment ------------------------- 44 17.6. D-Amp Circuit-------------------------------------------- 130
10 Disassembly and Assembly Instructions --------------- 45 17.7. SMPS Circuit--------------------------------------------- 134
10.1. Disassembly Flow Chart-------------------------------- 46 17.8. AC Inlet Circuit ------------------------------------------ 136
10.2. Main Components and P.C.B. Locations ----------- 47 18 Printed Circuit Board----------------------------------------- 137
10.3. Disassembly of Top Cabinet--------------------------- 48 18.1. Backend P.C.B.------------------------------------------ 137
10.4. Disassembly of Rear Panel---------------------------- 49 18.2. Main P.C.B.----------------------------------------------- 138
10.5. Disassembly of Fan-------------------------------------- 50 18.3. Operation Button, Power Button & Panel
10.6. Disassembly of Front Panel Block Assembly ----- 50 P.C.B. ------------------------------------------------------ 140
10.7. Disassembly of Panel P.C.B. -------------------------- 51 18.4. D-Amp P.C.B. -------------------------------------------- 141
10.8. Disassembly of Operation Button P.C.B. ----------- 52 18.5. SMPS & AC Inlet P.C.B. ------------------------------ 142
10.9. Disassembly of Power Button P.C.B.---------------- 53 19 Terminal Function of ICs ------------------------------------ 143
10.10. Replacement of Front Lid Assembly ---------------- 54 19.1. IC2300 (RFKWMXH150EB): IC
10.11. Replacement of Cradle Ornament ------------------- 56 MICROPROCESSOR --------------------------------- 143
10.12. Disassembly of DVD Mechanism Unit 19.2. IC6001 (C0HBB0000057): IC FL Display
(BRS1D) ---------------------------------------------------- 57 Driver ------------------------------------------------------ 144
10.13. Replacement of Traverse unit------------------------- 60 20 Exploded View and Replacement Parts List---------- 145
10.14. Disassembly of AC Inlet P.C.B. ----------------------- 65 20.1. Exploded View and Mechanical Replacement
10.15. Disassembly of D-Amp P.C.B. ------------------------ 66 Parts List -------------------------------------------------- 145
10.16. Replacement of Digital Amplifier IC (IC5100/ 20.2. Electrical Replacement Parts List ------------------ 149
IC5200/IC5300)------------------------------------------- 68
10.17. Disassembly of Main P.C.B. --------------------------- 69
10.18. Disassembly of Backend P.C.B. ---------------------- 71
10.19. Disassembly of SMPS P.C.B. ------------------------- 73
10.20. Replacement of Switching Regulator IC
(IC5701) ---------------------------------------------------- 75
10.21. Replacement of Rectifier Diode (D5702)----------- 77
10.22. Replacement of Thermal Diode (D5802)----------- 78
10.23. Replacement of Regulator Diode (D5803)--------- 79
11 Service Position ------------------------------------------------- 81
11.1. Checking & Repairing of Main P.C.B. --------------- 81
11.2. Checking & Repairing D-Amp P.C.B.---------------- 82
11.3. Checking & Repairing SMPS P.C.B. ---------------- 84
11.4. Checking & Repairing of Panel P.C.B. -------------- 85
11.5. Checking & Repairing of Backend P.C.B. ---------- 86
12 Voltage & Waveform Chart ----------------------------------- 88
12.1. Backend P.C.B. (1/3) ------------------------------------ 88
12.2. Backend P.C.B. (2/3) ------------------------------------ 89
12.3. Backend P.C.B. (3/3) ------------------------------------ 90

2
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 and 5.2M.
When the exposed metal does not have a return path to the chassis, 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, 10 watts resistor, in parallel with a 0.15