Sanyo VPC-CS1 - Troubleshooting Guide

– 24 –
CHECK IC102, IC121
CHECK IC102, IC121
5. TROUBLESHOOTING GUIDE
POWER LOSS INOPERATIVE
PUSH THE POWER
SW FOR A WHILE
CL305/CL307
SAME WAVEFORM
CHECK POWER SW
CL305/CL307
WAVEFORM
“L” PERIODICALLY
CHECK IC101
PON SIGNAL
(CL532)
VDD3
VDD1.8
VDD1.1
CHECK IC101
CHECK IC501, IC502
PUSH SHUTTER
BUTTON
KEY_1ST, KEY_2ND
INPUT
CHECK UNIT SW
PAON1, PAON2,
VAA2.8
CHECK IC101,
IC501, I2C
LVDS, I2C
COMMUNICATION
CHECK
CMOS MODULE,
CAA BLOCK, IC101
CHECK IC101
TAKING INOPERATIVE
NO
NO
LOW
NO
YES
YES
HIGH
YES
YES
HIGH
OK
NO
LOW
NG
NO PICTURE
CHECK IC101, X1102
IC101-A3 (XOUT)
CHECK
OSCILLATION
OK
NG