Input
CVBS
B
Check the set value of each
IC. Are the voltage values as
follows?
DIGITAL PCB
BN21A - 6pin
: Hi(3.3V)
BN21A - 7pin
: Hi(3.3V)
BN21A - 9pin
: Lo(0V)
Is the power supply voltage
being output correctly?
V+5V : C5107 : + side
V-5V : C5109 : - side
Is a signal being output from
the video amplifier?
CVBS : J5003
The circuit between IC511
and JK511 are faulty.
•Check the IC511 power supply volt
-
age and check the soldering of the
surrounding circuits.
•The circuit between IC511 and
JK511 are faulty.
Use the jigs to extend the
DIGITAL PCB.
The DIGITAL PCB is faulty.
Check the connection between the
SIDE CONNECTOR PCB and the
VIDEO PCB.
NO
NO
NO
YES
YES
YES
b
All parts are VIDEO PCB parts unless otherwise specified.
w
q
e
r
92