KV-30XBR910 - Sony TV Service Manual (repair manual). Page 22

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— 23 —
KV-30XBR910/34XBR910
3-3.  HV SERVICE FLOW CHART
KV-30XBR910 HV SERVICE FLOW CHART
Start
Finished with HV
service!
Is D board
replaced?
Is FBT/Strike/
Spare mark part
changed?
Confirm +B, and check Hold down on D board with black video with the
following steps:
1. Confirm +B across C6544 to make sure it is 135.3+1Vdc
2.  Apply 5.3+0.5Vdc at pin 2 of CN6544 then confirm set holds down.
Is HV correct?
(30.4+0.2kV)
If all adjustments are finished, then cap and seal
RV8002 with epoxy (or verify RV8002 is capped
and sealed) to prevent any possible misadjustment
by unauthorized service.
1.  Replace RV8002 with the correct part
2.  Adjust RV8002 to 30.40+0.2kV at video
    cut off (black video) after 10-15 min
     warm up.
No
No
No
Yes
Yes
Yes
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