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Mitsubishi VS-5044    
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Wrowzee



Joined: 08 Aug 2009
Posts: 1
Location: MISSISSIPPI

PostPosted: Sat Aug 08, 2009 11:05 pm    Post subject: Mitsubishi VS-5044 Reply with quote

Mistubishi
VS-5044


I just recently ran across a Mitsubish Projection CRT tv that was dontated to the ambulance service here in our town. When we plug in the tv and turn it on were hear the crt cans coming on and then all we get it a blank screen and a deep poping noise from the speakers that just pulses. I removed the rear and fronts from the unit and checked for loose wires and didnt see anything. I also pulled out the main board and checked for bad solder joint and burn spots and didnt find anything..... I did power up the tv and noticed that when I unpluged the red projection can yolk that the audio would start working, but nothing would display on the screen... Any suggestions?

Thanks
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JTS1957



Joined: 21 Jan 2009
Posts: 2395
Location: Far, Far Away

PostPosted: Mon Aug 10, 2009 11:56 am    Post subject: Reply with quote

Model Number: VS-5044 Symptom: SHUTDOWN AT POWER ON
Cause #1
1. SHORT DETECT SHUT DOWN (PIN 15 OF IC700) CHECK FOR OPEN L902 PART # 351P070010 OFF Q904 C (15 V SUPPLY) ON THE MAIN PCB.

Model Number: VS-5044 Symptom: INTERMITTENT SHUTDOWN
Cause #1
1. REPLACE L5A00,IF COIL IS WRAPPED IN BLACK TAPE,WITH PT#351P138020, (THE NEW COIL SHOULD BE WRAPPED WITH YELLOW TAPE).THIS IS LOCATED ON THE MAIN-PCB.

Model Number: VS-5044 Symptom: REPEAT FAILURE OF Q5A00
Cause #1
1. CHECK FOR SHORTED L5A00, PART # 351P138020 ON THE MAIN PCB

Model Number: VS-5044 Symptom: NO VERTICAL DEFLECTION
Cause #1
1. CHECK PIN 4 OF IC401 FOR 3 VDC IF MISSING CHECK IC202 (5V REG) PART # 266P932010, ON THE SIGNAL PCB. 4. MAY BE INTERMITTENT. CHECK SOLDER CONNECTIONS AT CONNECTOR "DY" ON THE YOKES.

1996 Chassis: VZ3
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