DIY Repair wrote:
Hi,

I've a Sony KV-27XBR55 and it suddenly has no picture.

Symptoms:

- no picture
- no OSD (on screen display) (the green colored text does not show)
- great sound
- tube seems to have static
- the back / neck of tube glows orange

I would appreciate it, If anyone can provide me of hints on how to go
about repairing it.

Anyone have the service manual/repair guide or schematics for this Sony
model (or similar model)?

Thanks in advance.

Google sci.electronics.repair for lots of prior postings of similar
problems and how to troubleshoot each one. At this point there are a
lot of different possibilities, need more input. Before adjusting
anything (hint) mark it with a black permanent marker so you can know
exactly where you started. I would start by measuring the G2/screen
voltage and write it down, mark the screen control, then slowly turn it
up to see if anything were visible on screen, then turn it back down to
exact origional position.

i.e. "Sony video" Sony blank video" etc