[TechAssist] Re: Mitsubishi VS4562 PTV No tuner input "A" or "B" ( Externalsare good )
- From: "harry fogarty" <snoopys2002@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Mon, 10 Feb 2003 19:35:07 -0800
All the data that i have here on these sets for no sound or video is any
smd`s 4.7 35 volts and also any 47 16 volts.On the sheets that i got on
these they say that these smd`s can cause several different problems with
the mits PTv`s.All the ones that i got listed is from vs582rs up to
vs7071.It also says that if there was any leaky caps on the pip board can
cause traces to erode and break open. hope this can help you.
Harry Fogarty
Prince Rupert Repairs
Prince Rupert B.C.
Canada
>From: "LeRoy Westlund" <llw@xxxxxxxxxx>
>Reply-To: techassist@xxxxxxxxxxxxx
>To: "TechAssist" <techassist@xxxxxxxxxxxxx>
>Subject: [TechAssist] Mitsubishi VS4562 PTV No tuner input "A" or "B" (
>Externals are good )
>Date: Mon, 10 Feb 2003 19:35:02 -0700
>
>
>Hi Members,
>I have fixed 2 of 3 problems with this Mits PTV, Thanks to Jeff's
>(Intrepid)
>tech CD.
>Problem # 1: No video, sound OK.
>Fix: Performed pip bypass.
>
>Problem # 2: Trapezoid picture.
>Fix: Replaced C5A1, and C5A2 (Both 2.2 @50) electrolytic caps. (On side pin
>board).
>
>Now for problem # 3: No video, or sound from tuner on both "A", and "B"
>inputs.
>All external inputs work OK.
>I removed the tuner, and soldered all connections on the tuner PC board,
>re-installed, but NO help. Before I send this tuner to Tip Top,...I am
>listing the voltage readings on the pins of the tuner. I am hoping someone
>can tell me if they are correct, or is anything missing ?
>
>Tuner voltages"
>BJ = +.13
>BT = 0
>BH = +.01
>AGC = +6.64
>BL = +10.66
>BM = +10.77
>IF = 0
>
>Any help is appreciated,
>LLW
>
>LeRoy Westlund
>Westlund TV & Electronics " Walk tall,...Walk straight
>93 North Main and look the world
>Centerfield, UT 84622-0087 right in the eye "
>Ph./Fax 435-528-3822
>mailto:LLW@xxxxxxxxxx
>
>
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- » [TechAssist] Re: Mitsubishi VS4562 PTV No tuner input "A" or "B" ( Externalsare good )
