Dell 2005FPW - UltraSharp - 20.1" LCD Monitor Servicehandleiding - Pagina 14
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Ook voor Dell 2005FPW - UltraSharp - 20.1" LCD Monitor: Instellen (2 pagina's), Gegevensblad milieu (3 pagina's), Specificaties (2 pagina's)
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(POWER INDICATOR OFF)
CHECK J101 VOLTAGE
1
PIN6, 7, 9(5V)?
2
U403 PIN32 Voltage
CHECK KEY CONTROL
CONNECTOR ROUTINE
U401, R435, R436
3
VOLTAGE REPEATED AS
PULSE SHAPE?
CHECK DATA LINE
CONNECTION(U403, U401)
Waveforms
1
J101-#6,7,9(5V)
TROUBLESHOOTING GUIDE
NO POWER
YES
CHECK
(3.3V) ?
YES
YES
PIN3, PIN4
YES
2
U403-#32(3.3V)
1. NO POWER
NO
NO
NO
3
- 14 -
CHECK POWER BOARD, AND
FIND OUT A SHORT POINT
AS OPENING
EACH POWER LINE
CHECK 3.3V, 5V LINE
(OPEN CHECK)
CHECK U402 VCC
X-TAL, RESET
U401, R435, R436-#3, 4