[TechAssist] Re: MITSUBISHI PROJ TV - MDL: VS-45603 -Need Parts Id

  • From: <fremur01@xxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Mon, 22 Sep 2003 09:56:02 -0400

Hello,

still have the power up problem. However, I found the following
chips 'blown', they appear to be in the  Vert Deflection circuit
but I cannot make out the numbers.

Location(s)
IC451
IC931

Can someone with service guide please id these two items?
Thanks Much

Fred
MTS Electronics
Fayetteville, NC
fremur01@xxxxxxxxx


-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of Leonard Caillouet
Sent: Wednesday, September 17, 2003 7:37 PM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Re: MITSUBISHI PROJ TV - MDL: VS-45603 DEAD


From Mitsubishi.

No Power:
1. CHECK IC700 PIN 4 (AC-OFF) FOR 0 VOLTS DC. IF HIGH, CHECK FOR LEAKY D980
PART # 264P045040 ON THE MAIN PCB.


Shutdown at power on:
1. CHECK FOR 10 VDC AT PIN 5 OF IC502 OF LOW, CHECK IC503 PART # 270P704010
ON THE MAIN PCB. 2. CHECK R529 .82 OHM 1/2 WATT OFF PIN 4 OF THE FLYBACK. IF
OPEN CHECK C411 2200 UFD @ 35V AND IC 451 PART # 270P064020. ON THE MAIN
PCB.

Leonard Caillouet
Electronics World
Gainesville, FL

----- Original Message -----
From: <fremur01@xxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, September 17, 2003 1:01 PM
Subject: [TechAssist] MITSUBISHI PROJ TV - MDL: VS-45603 DEAD


Hello,

This one is from another shop, came in as Dead Set
blowing main fuse. FC901, 5amp GMA. I traced that to bad
regulator at IC951.  After doing reg. replacement.
Set Power LED blinks twice, you here relay click.

It's not blowing fuse FC901 but I need to know the
2 blink code. Can ring the FBT no problems. Some
type of shutdown error I guess.

Anyway, I have no service literature, input from tech
with access to manual would be appreciated.

MITSUBISHI  PROJ TV - MDL: VS-45603    DEAD

Thanks,

Fred
MTS Electronics
Fayetteville, NC
fremur01@xxxxxxxxx

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