ITC2
CHASSIS
R402/ R407/ R422/ R435/ R452/ R457/ R472/ R488
Troubleshooting
3-7-1. HDMI 1/2 Troubleshooting
Check 5V on
CN3601
(pin18, 15, 16),
Check CN3601
(pin1,3,4,6,7,9,10,12)
= 3 3V?
HDMI1,
no picture
Change Board
OK
OK
Short Circuit Check
RB3606,RB3607,
RB3602 RB3603
OK
HPD(CL3601)
3.3V?
no picture
Check input source
Ch
k RB3606
NG
NG
RB3602,RB3603
(Power Off)
Ch
k RB3606 RB3607
NG
Check input source,
R3710, R3709, R3601
, RB3601, R3740,
Q3602 and Q3603
connectivity
Check RB3606,
RB3607, RB3602,
RB3603 connectivity
Check RB3606,RB3607,
RB3602 and RB3603 all
pins condition
Check 5V on
CN3600
(pin18, 15 ,16)
HPD(JL5008)
Check CN3600
(pin1,3,4,6,7,9,10,12)
= 3.3V?
HDMI2/MHL,
no picture
Change Board
OK
OK
OK
Short Circuit Check
RB3608,RB3604,RB36
09,RB3605 (Power
(
)
Check input source,
Check RB3608,
NG
NG
NG
Off)
R3711, R3712, R3699
and D3603
connectivity.
RB3604, RB3609,
RB3605 connectivity
Check RB3608,
RB3604, RB3609,
RB3605 all pins
condition
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