KV-30XBR910 - Sony TV Service Manual (repair manual). Page 23

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— 24 —
KV-30XBR910/34XBR910
KV-34XBR910 HV SERVICE FLOW CHART
Start
Finished w ith HV
service!
Is D board
replaced?
Is FBT/Strike/Spare
mark part changed?
Confirm +B, and check Hold dow n on D board w ith black video w ith the
follow ing 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 dow n.
Is HV correct?
(31.4+0.2kV)
If all adjustments are finished, then cap and seal
RV8002 w ith epoxy (or verify RV8002 is  capped and
sealed) to prevent any possible misadjustment by
unauthorized service.
1.  Replace RV8002 w ith the correct part
2.  Adjust RV8002 to 31.40+0.2kV  at video
    cut off (black video) after 10-15 min
     w arm up.
No
No
No
Y es
Y es
Y es
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