Gateway FPD1510 Service Manual page 16

TROUBLE IN DPM
CHECK
U501 (MICOM)
PIN 1, 42 (H/V INPUT)
SIGNAL ?
YES
CHECK
U501 PIN 6
WAVEFORM
(24MHz) ?
YES
CHECK
U501 PIN 26
(5V) ?
YES
TROUBLE IN PC
4. TROUBLE IN DPM
NO
NO
NO
TROUBLE IN
U501
TROUBLE IN
X501
TROUBLE IN
SIGNAL CABLE