[TechAssist] Fixed: Philips TP3281C101 32D700-7570 shuts down post flyback
- From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sat, 01 Nov 2003 20:51:06 +0000
The Final culprits were a pair of 1 ohm resistors in parell at 3660 & 3661
making the final parts tally as follows
5630 FBT
7150 jungle
Vert. IC (replaced as it was borrowed for an RCA)
3660 & 3661 1 ohm (parell resitors both open no sign of char or oxidation)
Peter Oliver
Tucson Radio TV
From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
Reply-To: techassist@xxxxxxxxxxxxx
To: <techassist@xxxxxxxxxxxxx>
Subject: [TechAssist] Re: Philips TP3281C101 32D700-7570 shuts down post
flyback
Date: Sun, 19 Oct 2003 10:24:20 -0400
Peter,
From Tech Repair CD:
NAP\TP3281 D7\No turn On\Flyback popped taking out Jungle IC and other
stuff. Many cases include loss of
H drive and others may have loss of video. There are several different
versions\of this chassis* so part
numbers may vary. These are the most common parts that die when the flyback
takes a dump... check them all
when replacing flyback (IHVT).\D7\see D7 Link in this NAP
table.\http://wa6ati.com/D7-DOC.pdf\\\\\\\
Magnavox\TP3281C101\Dead- indicator comes on clicks once\Good power supply
voltages including the 130v
supply\LED repeats a series of 4 short flashes and one long flash but the
set is otherwise
dead\32D700\When servicing either a D7 or G7 chassis the flybacks are a
common failure\There are several
components that also need to be checked as they can be damaged by the
defective flyback\Ref# 3610 22K
resistor part# 483511657706*Ref# 3331 47K resistor (SMD) part#
483511137445\Ref# 6328 Diode (SMD) part#
483513037095*Ref# 7325 Transistor (SMD) part# 532213060508\Ref# 7150 Signal
IC - Note: replace with part
number on IC (they depend on model)\\\\
Magnavox\TP3281C101\Dead set. The power LED may flash.\\\32D700\One
possible cause is the flyback
transformer(5630). First attempt to read the LED flashes\After the long on
flash* count the *off* flashes.
Use the Service Manual to look up the indicated fault\CAUTION: WITH AC
POWER REMOVED FROM THE
CHASSIS:\Examine the case of the flyback for bumps or bulges on the
cylindrical part.\Any indication of
expansion means the flyback is defective and must be changed.\When defective
flyback is disc\\\
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: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, October 18, 2003 5:06 PM
Subject: [TechAssist] Philips TP3281C101 32D700-7570 shuts down post flyback
Philips
TP3281C101
32D700-7570
EMD782A001
Bad Flyback arced thru board from side of transformer to
between jumper at 9397 and 5660/9660.
Put in flyback # 3128 138 20623 can anyone verify this is correct,
numbers on Transformers match 1st 2 lines.
Checked the components listed on sheet with flyback and on the site
with the D7.doc too. HAve replaced IC 7150 also.
Problem now is that HV will usually fluxup for about 20 sec (just short
of getting picture) then shutdown. (has anyone converted the 7570
manual/schematic to PDF yet off the force cd?)
Peter OLiver
Tucson Radio TV
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