JVC TH-A25 - Page 26

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5.3.2 Logo operation
5.3.3 Audio operation
N
Y
Y
Y
2
Check 27MHZ crystal
FIg.1
Check 114MHZ(pin 102
of U13)
Video OK
Check Video signal of
VQ1,VQ3,VQ4,VQ5,VQ6
Fig.1
OK
Check Voltage
of REG2 2.85V
REG3 3.50V
N
N
Y
Y
3
Check NEW DSP Parts
Check Main AMP parts
Check Audio Digital signal
at pin 33,36,37 of U13
Audio out
OK