[TechAssist] Re: Fwd: Re: Sylvania/Funai Md#6427TA (UPDATED info)
- From: "William Rayburn" <premtech@xxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 7 Jul 2004 21:39:51 -0700
Thanks, Randy I'll try the 1.5k value as soon as I get the HOT and I'll post
what I find..
Bill
William H. Rayburn, CET
NESDA Member
Premium Technologies
PO Box 442
Long Beach, Wa. 98631
(360) 642-4993
----- Original Message -----
From: "Randy Evans" <tvsvc2000@xxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, July 07, 2004 10:50 AM
Subject: [TechAssist] Fwd: Re: Sylvania/Funai Md#6427TA (UPDATED info)
Hi Bill and Jeff:
The response I've pasted below, is direct from the FUNAI Parts Department.
THE FIRST RESISTOR IS A 2W 1.5K OHMS RESISTOR. ALSO IT IS A FIXED METAL
OXIDE FILM RESISTOR.
BOTH RESISTORS ARE THE EXACT SAME ONES.
Randy Evans
VCR SERVICE
Delta, Ohio 43515
Randy Evans <tvsvc2000@xxxxxxxxx> wrote:
Date: Mon, 5 Jul 2004 19:49:36 -0700 (PDT)
From: Randy Evans
Subject: [TechAssist] Re: Sylvania/Funai Md#6427TA
To: techassist@xxxxxxxxxxxxx
Hi Bill and Jeff:
I found this thread below on google-groups on Sunday.
It seems it is getting even more confusing.
Randy Evans
VCR SERVICE
Delta, Ohio 43515
sylvania TV model 6427CTA mfg in 2000
Follow up:
Sylvania service dept finally returned the requested information
Both resistor are 2w 1.5k
still would love a copy of schematic if anyone has it available
thanks
chuck
chuck wrote:
> Hi can some one please help me out, I need values for R574 and R575 for
> a sylvania TV model 6427CTA mfg in 2000 there is no chassis number only
> a circuit bd with the production number BL1200F01012-1 I have looked on
> manuals4U.com with out results a web search would indicate tat this is a
> common failure on this set but no resistor values can I find... can
> anyone post or email these value or scan and send this portion of
> schematic I will be extreemly greatful
> Thanks Chuck
>
Intrepid Video Support wrote:
Bill,
I have found tips that give two different numbers for the HOT.
From Tech Repair CD:
SYLVANIA \SRT2027\Dead. Fuse Ok\\\\1. Bad Solder On R601 7 Watt .47 Ohm Stand
Up Resistor In
Power
Supply\2. Replace Q571 #2sd2578. Resolder Many Bad Areas In Horizontal
Circuit\\\\\\\
This is the set I worked on that had the board burnt and I had to repair the
traces:
Sylvania\SRT2027\Dead Just hear small start noise\\\\1st Problem R396(220ohms) &
R397(220ohms)burned
D397(8.2 zener) shorted.\2nd Problem Opto IC501 bad. Main B+ should be 43volt
in standby
mode and 120 when
on.\3rd Problem Shuts right off Q672 40k ohms leak from collector to base
causing
shutdown\\\\\\
Jeff
--
Intrepid Video TV/VCR Repair
263 S Front St, Steelton PA 17113
717-939-7708; (F) 717-564-4952
www.intrepid-video.com www.tech-repair.net
----- Original Message -----
From: "William Rayburn"
To:
Sent: Sunday, July 04, 2004 3:22 PM
Subject: [TechAssist] Re: Sylvania/Funai Md#6427TA
Thanks Randy,
I saw that in WinStips also for the model SRT2027 and didn't think it would
apply. The
first band of both resistors R574 & R575 is red so I found it a little
difficult to get to
1.5k or 470ohms so I assumed the chassis was different. This unit also uses a
2sd2578 for
the HOT, unlike the SRT2027 which uses a 2sd2634 or apparently a 2sd1888 for a
sub.
Have you personally used these resistor values in the 6427TA chassis? Whatever
the resistor
value was before got quite hot and maybe that was the problem, incorrect
resistance.
Anyone with a print for this one, or any other input out there would be most
appreciated.
Bill
William H. Rayburn, CET
NESDA Member
Premium Technologies
PO Box 442
Long Beach, Wa. 98631
(360) 642-4993
----- Original Message -----
From: "Randy Evans"
To:
Sent: Saturday, July 03, 2004 9:21 PM
Subject: [TechAssist] Re: Sylvania/Funai Md#6427TA
Hi Bill:
D571 is ERB44-02 or NTE552
Make sure that you replace R574 with a 470 Ohm @ 2W
HTH,
Randy Evans
VCR SERVICE
Delta, Ohio 43515
>From WinSTIPS......this should be the same chassis
SYLVANIA SRT2027
Dead. Q571 Horiz Out Xstr Shorted Plus Resistors Burned
Replaced The Parts Listed Below. What Really Dogged Us Was The Fact That
Sears Had The Wrong Value For R574. They Listed It As A 1.5 Ohm But It Was
In Fact A 470 Ohm. So We Had This Thing Fixed The Whole Time! With The
Wrong Resistor The Unit Would Start But The Pix Was Skewed Way Off To The
Right.
Q571 Hot 2sd2634 We Subbed It With A 2sd1880
R 574 Metal Resistor 2w J 1.5 Ohm Rn02152ub001 Should Be 470 Ohm 2w
R 575 Metal Resistor 2w J 1.5k Ohm Rn02152zu001
C 571 Metallized Film Cap. 0.33uf Ct2d334f7001 Sub: 46-201184-3
C 572 0.18uf 250v J Pp Ct2e184ms041
Intrepid Video Support wrote:Bill,
All I can find is 6427TE
I checked that and 6427TD and R574 was not listed...so I don't think they will
be close
enough.
Jeff
--
Intrepid Video TV/VCR Repair
263 S Front St, Steelton PA 17113
717-939-7708; (F) 717-564-4952
www.intrepid-video.com www.tech-repair.net
----- Original Message -----
From: "William Rayburn"
To:
Sent: Friday, July 02, 2004 5:28 PM
Subject: [TechAssist] Sylvania/Funai Md#6427TA
Have a 27" 2000 year set here that has a problem in the area of the HOT Q571
(2sd2578) which
is short E-B.
R574 and R575 are burned beyond recognition, other than to guess that they are
2w flame
proof resistors
with a red beginning band.
Also D571 burned in two and the board area just below these parts badly
charred. Need the
values of these
parts and appreciate any help from anyone with experience on this particular
chassis.
TIA
Bill
William H. Rayburn, CET
NESDA Member
Premium Technologies
PO Box 442
Long Beach, Wa. 98631
(360) 642-4993
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