Toshiba CZ32V51 help with repair
 

The subject TV, a Toshiba CZ32V51 exhibited the following symptoms
intermittantly: Upon startup, it immediately went into failsafe mode
with slow blinking front red led with black screen, no audio or video.
After about 5 - 10 minutes a normal picture would come on and last for
as long as viewing. Occasionally the picture would "flip" with what
sounded like it may be an arc over.
I was able to get into diagnostic mode with the following results.

Self check 23906826
Power: 000
Bus Line OK
Bus Cont OK
Block UV V1
QV01 QV01S

Finally, it no longer went into normal video mode but I was able to do
one more self check:

Self check 23906826
Power 000
Bus Line OK
Bus Cont NG H001
Block UV (in red letters) V1
QV01 QV01S (both in red letters)

Seems to point to H001 the tuner?
Can someone with experience with this diagnostic /set chassis series
N9ES help me interpret it and suggest a cure?

Thanks,

Fred

I had one of these recently that made me crazy. It turned out to be a lead
that was not trimmed that was laying over across a trace of the 12v supply
(near the FBT) and was pinched between the board and the plastic frame. The
coating on the trace had worn thin and it would short when the board was
moved around.

Leonard

"bimmer" wrote in message
oups.com...
The subject TV, a Toshiba CZ32V51 exhibited the following symptoms
intermittantly: Upon startup, it immediately went into failsafe mode
with slow blinking front red led with black screen, no audio or video.
After about 5 - 10 minutes a normal picture would come on and last for
as long as viewing. Occasionally the picture would "flip" with what
sounded like it may be an arc over.
I was able to get into diagnostic mode with the following results.

Self check 23906826
Power: 000
Bus Line OK
Bus Cont OK
Block UV V1
QV01 QV01S

Finally, it no longer went into normal video mode but I was able to do
one more self check:

Self check 23906826
Power 000
Bus Line OK
Bus Cont NG H001
Block UV (in red letters) V1
QV01 QV01S (both in red letters)

Seems to point to H001 the tuner?
Can someone with experience with this diagnostic /set chassis series
N9ES help me interpret it and suggest a cure?

Thanks,

Fred

Troubleshoot the clock and data lines, sda/scl in the set. Will need a
good oscope. Very common to have a low 12v line off the flyback due to
a bad 1000uF capacitor cause this. As well as the audio control ic
failure. So, no what you describe does not point to the tuner, it
points to a problem on the clock and data lines.

David
bimmer wrote:
The subject TV, a Toshiba CZ32V51 exhibited the following symptoms
intermittantly: Upon startup, it immediately went into failsafe mode
with slow blinking front red led with black screen, no audio or
video.
After about 5 - 10 minutes a normal picture would come on and last
for
as long as viewing. Occasionally the picture would "flip" with what
sounded like it may be an arc over.
I was able to get into diagnostic mode with the following results.

Self check 23906826
Power: 000
Bus Line OK
Bus Cont OK
Block UV V1
QV01 QV01S

Finally, it no longer went into normal video mode but I was able to
do
one more self check:

Self check 23906826
Power 000
Bus Line OK
Bus Cont NG H001
Block UV (in red letters) V1
QV01 QV01S (both in red letters)

Seems to point to H001 the tuner?
Can someone with experience with this diagnostic /set chassis series
N9ES help me interpret it and suggest a cure?

Thanks,

Fred