Marantz DV9500, Service Manual

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48
3.6 Check the Video encoder. (RGB)
OK OK
NG
NG
OK
NG
OK
OK
OK
OK
OK
Finish
OK
OK
NG
NG
OK
OK
OK
NG
NG
OK
OK
Are the VD+3.3V and +2.5AD voltage
lines of QN01 normal?
Is the reset signal of QN01 (33pin)
normal?
VRST_5=H
Are the digital data of QN01 normal?
51-55pin and 58-62pin
Is the master clock waveform of 32pin on
QN01 normal?
27MHz 2Vp-p
Is the IIC waveform of 21pin and 22pin on
QN01 normal?
Are the video signals outputted to each
pin of JN01?
4pin=G, 6pin=B, 8pin=R
Check the soldering of QN01, LN01, LN02,
LN03, QK91 and QM91.
Check the input voltage of QK91 and QM91.
Replace QK91 or QM92.
Refer to “POWER SUPPLY PCB”.
Check the soldering of QK10 (18pin),
RN06 and CN09.
Refer to “3.4 Check the DIGITAL VIDEO
OUTPUT”.
Check the soldering of RM23-26 and QN01.
Refer to “3.4 Check the DIGITAL VIDEO
OUTPUT”.
Check the soldering of RN05 and QN01.
Refer to “3.4 Check the DIGITAL VIDEO
OUTPUT”.
Check the soldering of RN02, RN03 and
QN01.
Check the soldering of QK07 and QK08.
Refer to “3.4 Check the DIGITAL VIDEO
OUTPUT”.
Check the soldering of QN02-QN04 and
circumference resistors.
Check the output signals of QN01
(37-39pin).
Replace QN02-QN04.