1-8
4. TROUBLESHOOTING
4-1. No Power (No Video & No Sound)
Fig. 1-4-1
N
Y
Y
Y
N
Y
N
N
Y
N
N
Y
Y
N
N
Y
N
Y
N
Y
12Vcc = 12V ?
(IC801 Pin 5)
5Vcc = 5V ?
CHECK/REPLACE
IC803, L804, D802
CHECK/REPLACE
IC804
CHECK/REPLACE
X201, IC201
3.3Vcc = 3.3V ?
IC201 Pin 34, 35
OSC O.K ?
IC801
Pin 1 = 12V ?
IC801
Pin 4 = LOW ?
IC701
Pin 19 = HIGH ?
IC701
Pin 11 = 5V ?
IC701
Pin 18 = HIGH ?
IC701 Pin 13, 14
OSC O.K ?
CHECK/REPLACE
SCL, SDA LINE
CHECK/REPLACE
F801, L801, ADAPTER
CHECK/REPLACE
IC801
CHECK/REPLACE
Q801
CHECK/REPLACE
IC702
CHECK/REPLACE
IC704
CHECK/REPLACE
X701, IC701
CHECK/REPLACE
IC201 (MXCS, MXSDA, MXSCL, MX_RESET),
IC400
Summary of Contents for 15DL72
Page 1: ...LCD TV SERVICE MANUAL FILE NO 050 200224 15DL72 DOCUMENT CREATED IN JAPAN Oct 2002 ...
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Page 46: ...10 1 3 4 A B C D E G 2 5 6 7 8 9 F Fig 2 4 2 U001 Main PC board Bottom side 2 44 2 43 ...
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Page 57: ...TOSHIBA CORPORATION 1 1 SHIBAURA 1 CHOME MINATO KU TOKYO 105 8001 JAPAN ...