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DSD0503043C3
DMR-EH50GN
0 COVER
1 Safety precautions
1_1 General guidelines
1_1_1 Leakage current cold check
1_1_2 Leakage current hot check (See Figure 1
2 Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive (ES) Devices
3 Precaution of Laser Diode
4 Handling the Lead-free Solder
4_1 About lead free solder (PbF)
5 Each Button
6 New Feature
6_1 Quick start function(REC)
7 Taking out the Disc from RAM-Drive Unit when the Disc cannot be ejected by OPEN/CLOSE
7_1 Forcible Disc Eject
7_1_1 When the power can be turned off.
7_1_2 When the power can not be turned off.
7_2 When the Forcible Disc Eject can not be done.
8 Service Explorer
9 Self-Diagnosis and Special Mode Setting
9_1 Self-Diagnosis Functions
9_2 Special Modes Setting
9_3 Service Modes
10 Assembling and Disassembling
10_1 Disassembly Flow Chart
10_2 P.C.B. Positions
10_3 Top Case
10_4 Front Panel
10_5 SD Card P.C.B.
10_6 Digital P.C.B.
10_7 DVD-RAM Drive
10_8 HDD
10_9 LED P.C.B.
10_10 Power P.C.B.
10_11 Rear Panel
10_11_1 Fan Motor
10_12 Front (L) P.C.B.
10_13 Main P.C.B.
10_14 Tuner P.C.B. and Nicam Decoder P.C.B.
11 Service Fixture and Tools
12 Service Positions
12_1 Checking and Repairing of Power P.C.B.
12_2 Checking and Repairing of Digital P.C.B.
12_3 Checking and Repairing of Main P.C.B.
12_4 Checking and Repairing of DVD-RAM Drive
12_5 Checking and Repairing of HDD
13 Caution after replacing parts
13_1 After replacing the RAM Drive with new one
13_2 When the unit does not operate normally after replacing the Timer Microprocessor or M
14 Standard Inspection Specifications after Making Repairs
15 Voltage and Waveform Chart
15_1 Power P.C.B.
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