P-Sens; Vkk Check - LG MCV902 Service Manual

2. P-SENS

P-SENS PART
SMPS ASS'Y CN902
- -> 7PIN 5.1V CHECK
MAIN PCB CN710
7PIN 5.1V CHECK
MAIN PCB CN304
6PIN 5.1V CHECK
FRONT PN304 35 PIN 5.1V CHECK
FRONT IC304(RESET IC)
STATE CHECK
µ-COM IC302 1PIN 4.4V CHECK

3. VKK CHECK

VKK CHECK
CN710 10PIN DC
-32V CHECK
IC301 50PIN VOLTAGE CHECK
YES
YES
YES
YES
YES
YES
YES
YES
NO
SMPS TROUBLESHOOTING CONSULT
NO
CN710 CONNECTION STATE CHECK
NO
MAIN PCB PATTERN CUTTING
AND SHORT CHECK
IC304 INPUT VOLTAGE 5V OVER
NO
STATE CHECK AND OUTPUT VOLTAGE 4V
OVER STATE CHECK
IC304 KIA7042 CHANGE
NO
SMPS TROUBLESHOOTING CONSULT
3-2
YES