[TechAssist] Re: Sony KV32S-20/22 Service Manual Help needed!!
- From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 20 Nov 2003 21:06:05 -0500
Bruce,
From Tech Repair CD:
Sony\KV32S20\no video or on screen display\When G2 was turned up all the way
up* set had dim raster* no
retrace lines\Scoped jungle IC301 and it had good video in and no R G B out.
Replace jungle and same
problem\\Vertical IC had no -15 volts* which also went to Pin control IC. R536
which supplied -15 was
open\\\\\\\\
Jeff Dougherty
Intrepid Video TV/VCR
263 S Front St
Steelton PA 17113
fax...717-564-4952
www.intrepid-video.com www.tech-repair.net
----- Original Message -----
From: "Bruce Tiedeman" <btied@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, November 20, 2003 4:52 PM
Subject: [TechAssist] Sony KV32S-20/22 Service Manual Help needed!!
Sony KV32S-20 schematic needed....(Fault: No picture, raster only, no sound,
H.V OK.)
Can any one in the group help with this request and "upload", to the list. I
installed a new flyback and tuner, "possible lightning damage set". The
front light blinks stead ,guide says possible jungle I.C, delay line etc. I
do have a dull raster with faint color bars on each side. The condition is
to weird, no sound or picture. The screen control will only increase
brightness slightly. I am wondering if the replacement flyback could be bad.
Looks like a supply voltage might be missing to the jungle I.C or tuner
section. The tuner on this set looks like the I .F section is built in.
This chassis has no stand up boards , but does have power supply split on
another board. These power supply voltages check OK. A schematic would
really help.
thanks
Bruce.
B&T Electronics
139 Margaret St
Sarnia Ontario
Canada
N7T 2Y3
519 344 1850
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