[TechAssist] Re: Mitsubishi VS-6015R Shutdown on this 500# monster
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 7 Jan 2004 08:19:17 -0500
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Text pasted from WinSTIPS 2.0
http://www.ServiceSoftware.com
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MITSUBISHI VS6015R
Control/Display Shuts Down On Power Up
From Mitsubishi
Check Vertical Ic401 For No Output Triggering Xprotect. Pcb-Defl Part
#272p239040
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MITSUBISHI VS6015R
Control/Display Won'T Power On
From Mitsubishi
Check For 5 Volts At Pin #32 Of Ic701. If Missing Check For Open Regulator
Ic705. Pcb-Fs. Part #266p922010.
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MITSUBISHI VS6015R
Control/Display Won'T Power On
From Mitsubishi
Check For Rest 5 Volts At Pin #45 Of Ic701. If Missing Check For Shorted
Ic706. Pcb-Fs. Part #263p872030.
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MITSUBISHI VS6015R
Control/Display Won'T Power On
From Mitsubishi
Check For Horizontal Drive At Pin 13 Of Ic201. If Missing Check For 9 Volts
At Pin 7 Of Ic201. If Missing Check For Shorted Q2e6 And D4e 3.(Pcb-Main)
Pt.# Q2e6 - 260p338040
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MITSUBISHI VS6015R
Dead, 130v Line Is Low
Technos
Audio Ic Bad #Ic305, Stk4132, Uses The +24 And -24 Volts
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MITSUBISHI VS6015R
High Voltage Intermittent Shutdown
From Mitsubishi
Check Pin 5 Of Ic502 For 22.5vdc. If Low Check For Leaky D513. Pcb-Main
Part #264p244030
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MITSUBISHI VS6015R
High Voltage Intermittent Shutdown
From Mitsubishi
Check For 20.7vdc At Base Of Q503. If High Check For Leaky D511, D512 Off
Pin 13 Of Flyback, If They Read Good Replace Flyback T503. Pcb-Main Part
# T503 - 334p161030
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MITSUBISHI VS6015R
High Voltage No Horz Drive
From Mitsubishi
Check For 45v At Collector Of Q501. If Missing Check For Open R505 (3.3kohm
3w) At T501. Pcb-Main
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MITSUBISHI VS6015R
High Voltage Shutdown At Power Up
From Mitsubishi
Check For Defective Ic401. (Pcb-Main) Ic401 Part #272p239040
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MITSUBISHI VS6015R
High Voltage Shutdown At Power Up
Fey'S Electronics
Check And Replace 1uf 250volt Cap At B+ Input To Driver Side Of Horizontal
Drive Transformer...
Had Max Esr...
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MITSUBISHI VS6015R
High Voltage Shutdown At Power Up, R514 Burns With Reduced Ac.
Ford'S Tv & Video Service
Defective Flyback, T503 (334p19102), Open Resistor, R514 (22k 1/2w).
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MITSUBISHI VS6015R
Horizontal Horz Output Shorts
From Mitsubishi
Check For Shorted Damper Diodes D501 And D502. Pcb-Main Part # - D501
264157010 D502 264102020
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MITSUBISHI VS6015R
Horizontal Int. Failure Of Q502
From Mitsubishi
Intermittent Failure Of Q502,May Occur Only When Warm.Check The Value C914
(47uf 100v),Located In The Power Supply.
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MITSUBISHI VS6015R
Power Supply 130v Loads To 30v
From Mitsubishi
D920 Leaky. Located At Collector/Emitter Junction Of Q900 On Pcb-Power. Pt#
264p46301 8.2v Zener
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MITSUBISHI VS6015R
Power Supply 130v Loads To 30v
From Mitsubishi
Power Supply Regulates Good Out Of Set. Check For Leaky/Shorted C910.
Located At Pin 3 Of Ic900. (.047uf 50v)
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MITSUBISHI VS6015R
Power Supply 130v Loads To 30v
From Mitsubishi
Check C914 (47uf 50v) At Pin 2 Of Ic900 On The Power-Pcb.
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MITSUBISHI VS6015R
Power Supply Dead - No 130v Supply
From Mitsubishi
Check Start Up Resistor R903 For Open, Check Out Of Circuit. Located Off Pin
1 Of T901 On Pcb-Power.(270k 1/4 Watt)
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MITSUBISHI VS6015R
Power Supply Ic901 Supplies Missing
From Mitsubishi
Suspect Open L911. Located At T901 P1 Terminal On Pcb-Power. Pt#
411p001040
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MITSUBISHI VS6015R
Power Supply Int Shutdown
From Mitsubishi
Suspect Failure Of L911. Located On Pcb-Power At T902 Primary. Pt#
411p001040
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MITSUBISHI VS6015R
Power Supply Int Shutdown
From Mitsubishi
May Occur Only At Turn On,Check C4003 (1uf 35v Tant) On Pin 6 Of Ic401 On
The Main-Pcb.
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MITSUBISHI VS6015R
Power Supply L801 Open; C812 Short
From Mitsubishi
16v +/- Supplies At Pc Connector In Power Supply Both Measure +16v. Suspect
Open D958. Located On Pcb-Power At Pc Connector Pin 1. Pt # 264p35808
Ru-4yx
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MITSUBISHI VS6015R
Power Supply No Power Up
From Mitsubishi
Check For Open R903 (270kohm 1/2w) Start Up Resistor At Pin 3 Of Ic900.
Pcb-Power
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MITSUBISHI VS6015R
Power Supply No Power Up
From Mitsubishi
Check For Shorted C910 (.047uf 50v) At Pin 3 Of Ic900. Pcb-Power
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MITSUBISHI VS6015R
Power Supply No Vertical Deflection
From Mitsubishi
Check Pin 8 Of Ic401 For 27.7v. If Missing Check For Open D955 And L961 At
S1 Terminal Of T902. Pcb-Power D955 Part #264p102040
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MITSUBISHI VS6015R
Power Supply Shutdown
From Mitsubishi
-16v Supply Measures Low. Suspect Shorted D959 (264p102040) On Pcb-Power
At Connector 'Pc' And C881 (10uf 35v Tan) On Pcb-Conv At -12v Regulator
Ic812.
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MITSUBISHI VS6015R
Power Supply Shutdown
From Mitsubishi
Missing 9v At Ic209 Pin 2. Suspect Defective 9v Regulator Ic707. Located On
Pcb-Signal. Pt# 266p931010
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MITSUBISHI VS6015R
Power Supply Shutdown
From Mitsubishi
Check For A Leaky Or Shorted Q504 Located On Pin 7 Of Ic502. Pt#260p560040
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MITSUBISHI VS6015R
Power Supply Shutdown At Power Up
From Mitsubishi
Ic401 Kit Has Been Installed-:Repeat Failure Of Ic401. Check Ic8000
Pt#267p842010 L8001,L8002 Pt#321c031040 C8004 (100uf 25v)
C8006 (220uf 50v)
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MITSUBISHI VS6015R
Power Supply Shutdown At Power Up
From Mitsubishi
Check Vertical Ic401 For No Output Triggering Xprotect. Pcb-Defl Part
#272p239040
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MITSUBISHI VS6015R
Power Supply Supply Voltages Are High
From Mitsubishi
Check Value Of R906 (560ohm 1/2w) At Pin 8 Of Ic900. Pcb-Power
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MITSUBISHI VS6015R
Power Supply T902 Supplies High
From Mitsubishi
Check For Open Capacitor C920, 10uf At 100 Volts. Located On Pcb Power Off
Pin 9 Of Ic901. Part Number N/A.
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MITSUBISHI VS6015R
Power Supply Won'T Power On
From Mitsubishi
Missing 5vdc At Pin 32 Of Ic701. Check For Open Ic705 5v Regulator.
Pcb-Signal Part #266p922010
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MITSUBISHI VS6015R
Powers Up & Goes Into Shutdown (From The Tv Man-Sanford Me)
Kit P/N Ic401 Includes Ic401 La7838 Ecg7039, C920 181p187040 10/100 (I
Nstall On Foil Side Away From Heat), And D4000 264p464050 Eqa02-10u Or
Rd11eb1 Ecg5020a 11v 0.5w Zener. Prevents Ic401 Repeat Failure.
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Bob Waterman, CET® #RI-28
Master Technician License #9109
Service Manager / Parts Manager
Gemini Computer, TV, & Security Alarms
(508)695-7302
(508)695-7769 FAX
geminitv@xxxxxxxxxxxxxxxx
geminitv@xxxxxxx
www.geminicomputertvsecurityalarms.com
----- Original Message -----
From: "Gerald Gann" <alpha21century@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, January 06, 2004 7:46 PM
Subject: [TechAssist] Mitsubishi VS-6015R Shutdown on this 500# monster
> Mitsubishi VS-6015R Shutdown on this 500# monster. Found one tech tip on
intermittent shutdown L911. This one is not intermittent. Any one have any
thing on this one. Pulled yokes one at a time, nothing. Flyback rings good.
Dynamic test shows good HV on sencore TVA92. Could use PDF schematic. Any
help would be great.
> Thanks
> Jerry
>
> Alpha 21 Electronics
>
> Granite City, IL 62040
>
> Ph. 618-452-8620
>
> Fax 618-876-5157
> www.alpha21century@xxxxxxxxxxxxx
>
>
>
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Send to the list at chat@xxxxxxxxxxxxxxx once subscribed.
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