TROUBLESHOOTING HINTS
PV-D4742
OK
Replace IC8403.
Cause: Audio DAC Problem
Check voltage at TP8022 on the
DVD Decoder C.B.A.
Is it +5.0V ?
Check signal at TP8416 on the
DVD Decoder C.B.A.
(27 MHz clock)
NG
Check Power line.
OK
Check X8501.
NG
Replace X8501.
NG
Replace IC8502.
OK
(BUFFER)
(AUDIO D/A CONVERTER)
Cause: EEPROM Problem
Check voltage at TP8051 on the
DVD Decoder C.B.A.
Is it +5.0V ?
Check Power line.
NG
OK
Replace IC8001.
Cause: Flash ROM Problem
Check voltage at TP8301 on the
DVD Decoder C.B.A.
Is it +3.6V ?
NG
Check Power line.
OK
Replace IC8301.
(EEPROM)
(FLASH MEMORY)
1 V
20 ns
V1 3.1 Vp-p
1 V
20 ns
V1 2.2 Vp-p
1 V
20 ns
V1 3.1 Vp-p
TP8006
TP8207
TP8416
Summary of Contents for PVD4742 - DVD/VCR DECK
Page 1: ...ORDER NO MKE0201800C1 B3 DVD VCR DECK PV D4742 SPECIFICATIONS 1 ...
Page 23: ...Fig D2 23 ...
Page 27: ...5 2 1 Disassembly Reassembly Method 5 2 2 Inner Parts Location Fig J1 1 27 ...
Page 28: ...5 2 3 EJECT Position Confirmation Fig J1 2 28 ...
Page 54: ...7 SCHEMATIC DIAGRAMS 54 ...
Page 56: ...10 2 MECHANISM BOTTOM SECTION 56 ...
Page 57: ...10 3 CASSETTE UP COMPARTMENT SECTION 57 ...
Page 58: ...10 4 CHASSIS FRAME AND CASING PARTS SECTION 58 ...
Page 59: ...10 5 PACKING PARTS AND ACCESSORIES SECTION 59 ...
