[TechAssist] Re: vs6043 vz3 chassis

  • From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Fri, 5 Nov 2004 06:52:59 -0500

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Text pasted from WinSTIPS 2.0
http://www.ServiceSoftware.com
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MITSUBISHI   VS6043

Audio & Video:Hi-Freq. "Weave" In Both; Hear In Spkrs Even When Mute

Palmetto Electronics, Inc.

C933 & C5a02:100uf, 50v, 105c + C929 & C5a08:100uf, 35v, 105c + C5a02: 47uf,
35v, 105c: Best 2 Change C912(220uf, 35v, 105c) & C914(3.3uf, 100v, 105c) In
Smps Primary @ Same Time!

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MITSUBISHI   VS6043

Dead - Relay Clicks Twice

Orlan Stone, Cet

Replace Ic900 (Str-M6811), Ic901 (Se130n) And Pc900 (On3161r). Note:  Lite
Box Pulls For Shop Service.  See Vz3

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MITSUBISHI   VS6043

Dead - Relay Clicks Twice

Dan Mundy, Cet/Csm

Check Z900 On Power Board For Open.  If Open Check Vert Ic 401 La7845
270p064030.

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MITSUBISHI   VS6043

Dead Set. A/C Fuse Bad

Hugh/Main Tv

Found Bad Parts---Q5a00  2sd2349  H. Output,  Ic900  Str-M6811 Pwr.
Regulator,
And Bad Flyback  T5a03  (Cost About $90 From Mits.) #334p24606.  Bad A/C
Fuse
F900  5 Amp.

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MITSUBISHI   VS6043

Power Supply    Intermittent Shutdown

From Mitsubishi

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.

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MITSUBISHI   VS6043

Power Supply Not Functional



Replace  Ic900, Ic901 And Pc900

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MITSUBISHI   VS6043

Raster Has Dark Lines  Like Beat Pattern.  High Pitch Noise Not Spkr

Dan Mundy, Cet/Csm Vz3 Chassis

C933 Off 15 V Supply 100uf 35 V Near Connector Dr.

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MITSUBISHI   VS6043

Raster No Go - Intermittent No Raster  (Vertical)

From Mitsubishi

Problem Is Loss Of Vertical Feedback, Squarewave On Vertical Output
Cure
Resolder Connections On Yoke Pcbs

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MITSUBISHI   VS6043

Raster No Go / Pulsing Sound From Speakers / Poss Ant Relay Clicks In Time
To The Pulsing

Bryn Mawr Tv

C816 And C5a28 (100uf/200v) C5a03 (4.7uf/200v)

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MITSUBISHI   VS6043

Shuts Down At Power Up

Tv Doctor To Ca.

Replace Icw00,01,02 Stk391-020

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MITSUBISHI   VS6043

Shutsdown At Turn On

Mitsubishi

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.

2. Short Detect Shutdown (Pin 15 Of Ic700) Check For Shorted D913 Part #
264p722010 And Open Z901 Part # 283p039020 (Z905 And Z900 May Also Be Open
Because Of This).

3. X-Ray Shutdown (Pin 55 Of Ic700) Check For A Leaky D5a09 Part #
264p244030 Off Pin 6 Of Ic5a01.

4. X-Ray Shutdown (Pin 55 Of Ic700) Check For Leaky D5a21, Part #
264p045040, In The Beam Protection Circuit On The Main Pcb.

5. Check For Leaky Q5a03 And/Or Q5a04 Both Part # 260p559050, In The High
Voltage Detect Circuit, On The Main Pcb.

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MITSUBISHI   VS6043

Shutsdown At Turn On (No Hi Voltage)

Bryn Mawr Tv

Found Good Horiz Drive Until Shutdown
T5a03 Defective  334p246010  Subs To 334p246060
Fly Rings Good Problem Is With Intergrated Splitter

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Text pasted from WinSTIPS 2.0
http://www.ServiceSoftware.com
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MITSUBISHI   VZ3

Dead , Rly Clicks Twice, No Hv

Slidewire Electronics

Resolder L913 Off Pin 4 Of T900 In Ps.  Vz3 Chassis

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MITSUBISHI   VZ3

Dead - Customer Complained Of Intermittent Operation Before

John Kincaid Sos Tv

Strm6811 Power Supply Chip $28

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MITSUBISHI   VZ3

Dead, Clicks On And Back Off, F902 Open

Marshfield Tv

F902 (4 A Fuse) Hard To See Or Get To, Located In Front Of Main Smps Xfrm,
Underneath Standup Board.  Also Found Shorted Output, Q5a00, 2sd2349 And Had
Bad Flyback, 334p246060, Crc Had It For $90 (Nov `03), Phone 1-909-629-5641.
Per Other Tips, Be Sure To Check Regulator Str-M6811, Common To Fail When
Output Shorts, This Set Didn'T Need It.

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MITSUBISHI   VZ3

Dead, Power Up. Relay Click Only.

Robinson Electronics

Replace (Open) 4a. Fuse - "130v. Line F902".
Replace (Shorted) H.Output Transistor  Q5a02 - D2349 Mfr# 260p797020.
Replace (Bad) 3 Mh Choke Coil - L5a01 Mfr# 351p138010.
Vz3 Chassis.


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MITSUBISHI   VZ3

Dead, Seems To Go Into Shutdown.

Robinson Electronics

Check Or Resolder All Connections On The Yoke Plug "Not The Chassis" Seems
To Be Loose Connections On Yoke - Common Problem.

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MITSUBISHI   VZ3

No Video Has H/V



Vertical Output Failure Ic401 La7845 Caused By Defective C402 100uf 50v

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MITSUBISHI   VZ3

Pulling Lite Box For Shop Service



Pull Off Spky Grills.  Unscrew Panels, Disconnect Keypad, Take Off Screen.
Take Off Two Side Panels Inside. Remove Large Gold Screws Holding Chassis
Down In Back.  Take Remote.  Don'T Need Keypad.

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MITSUBISHI   VZ3

Shutdown (Intermittent)

Mela Tip

D5a09 P/N 264p244030 And D5a21 P/N 264p045040 In X-Ray Protection Circuit On
Main Pcb

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MITSUBISHI   VZ3

Shutdown (Intermittent)

Bryn Mawr Tv

On Defl Cba Look In Area Of Ic5a01 And Connectors Da And Db For Coolant
Residue
Clean Area And You Are Good To Go

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MITSUBISHI   VZ3

Shutdown After 30 Seconds

Mela Tip

Leaky D5a21 P/N 264p045040 In X-Ray Protect Circuit On Main Pcb

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MITSUBISHI   VZ3

Shutdown At Power On

Mela Tip

Open L902 P/N 335p070010 On Main Pcb (15 Volt Supply)

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MITSUBISHI   VZ3

Shutdown At Power On, Slight Motorboating Heard

Cap'S Tv

Open C918 Capacitor (100uf/200v) In The 130v Supply. Located Near The
Flyback.

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MITSUBISHI   VZ3

Shutsdown At Turn On (No Hi Voltage)

Bryn Mawr Tv

Found Good Horiz Drive Until Shutdown
T5a03 Defective  334p246010  Subs To 334p246060
Fly Rings Good Problem Is With Intergrated Splitter

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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@xxxxxxxxxxx




----- Original Message ----- 
From: "pete" <tvtech@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, November 04, 2004 10:51 PM
Subject: [TechAssist] Re: vs6043 vz3 chassis


> sorry about the typo is vs6043
>
> Pete
> Perdomo Tv Inc Since 1972
> Miami.Fl
> ----- Original Message ----- 
> From: "pete" <tvtech@xxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, November 04, 2004 10:50 PM
> Subject: [TechAssist] vd6043 vz3 chassis
>
>
> > cant find anything on this set tv shutts down  high voltage is presen
> > before it shuts down . Has anybody had any info on this tv?
> > thank you
> >
> > Pete
> >
> >
> > Perdomo Tv Inc Since 1972
> > Miami.Fl
> >
> >
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