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Toshiba CF36H50 - Module H002

F

flood

Having an extremely hard time finding a part number for a module for
Toshiba CF36H50. I am too cheap to go to an authorized dealer (plu
they are at least 2 hours away and from what I can tell it will cost m
$200 just to get it looked at). The tv is probably only worth abou
$100.

Basically the tv goes into some sort of screen test mode. Rotate
different screen resolutions/formats/colors.

However, in service mode the tv works fine (other than no sound). I ru
the self diagnostic it shows the following info:

Part No: 23906358
Power: 000
Bus Line: NG
Bus Cont: NG H002
Block: UV V1 QV01 QV01S

By no means am I a repair expert but I assume the Part No. is the I
chip it is running the diagnostic on and the H002 is the modul
indicating a fault. Problem is that H002 is only mentioned in th
service mode adjustment section - it is not listed in the parts lis
section - nor is it on any of the board diagrams. I also cannot fin
the label on the board visually (I can find H001 - the tuner - but no
H002). I can find the part number for other Toshiba models but not th
CF36H50 - the parts distributors tell me it is probably different.

Can anyone help me on what this part might look like (so I can identif
it on the main board and get the part number off it) or know of a way t
determine the part number? I have contacted Toshiba and they of cours
were no help.

I really don't want to trash the tv since it still accepts inputs an
still works in service mode.

Thanks for any help you can provide
 
F

flood

I haven't tried that - may work depending if the sound works (it didn'
in service mode). Is there a standard key combo on the remote to ente
"dealer demo" mode? or is it manufacturer specific? I searched aroun
google and these forums and didn't find anything specific for Toshiba
I assume it is not in the service manual.

Joh
 
S

Shoreline Electronics

Is there a Demo mode listed in the customer menu?

--
==========================
Jeff Stielau
Shoreline Electronics Repair
344 East Main Street
Clinton,CT 06413
860-399-1861
860-664-3535 (fax)
[email protected]
========================
 
F

flood

I put it in demo mode from the customer menu - no go. In the servic
manual it mentions that H002 in relation to the Attenuator and th
Stereo VCO. Any chance just adjusting these values could make
difference? Nothing I can screw up by adjusting these is there
 
That is a CF, H series Toshiba. I recall a bad 1000uf Samsung
capacitor off a scan derived pwoer supply causing that same problem a
long time ago. Toshiba tech support had the information as they got a
hold of a bad batch of them. Check all your main Vcc voltages that are
derived off the 12v scan derived line.
 
F

flood

I am not enough of a repairman to check voltages - if it comes down t
that I will just have to trash the tv. But it seems in the servic
manual - there are two different chassis N7S and N8ES - however onl
one is valid for this tv (N8ES) - seems the H002 is mentioned in th
N7S chassis but not the N8ES. From what I can tell the equivalent i
likely QG01 in the A/V block. There are two 2.2uF capacitors in thi
line that may be suspect. I assume I can use a multimeter to see i
resistance builds to infinity(or a high value)
 
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