[TechAssist] update Toshiba TV/DVD/VC Rmodel MW24FM1 no vertical or sound after storm
- From: Phil Bader <tjanphyl@xxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Tue, 05 Oct 2004 18:24:58 -0400
The vert output IC has voltages.So does audio. Tho no picture, I pressed
""input select" on remote repeatedly while holding a probe at the audio
in jack. I now can get a hum touching thoseaudio in L/R inputs, so
audio power circuitry is funcional.The manual shows IC601
(TB1253N/BZ611064) as "IF/Chroma" and has Hout, Vout, Audio out,etc, so
it must be the jungle chip.
IC101 MICON (OEC8073A) does have Hsync,Vsync,etc, and has the EEPROM"
IC199" (BZ310377) attached to it. I know RCA's will get a corrupt eeprom
and lose unrelated functions like sound, vertical,etc.
My bet is either eeprom, or jungle IC601.
Anyone with Toshiba experience on these wager a bet?
C'mon!
Phil Bader
Phil Bader wrote:
>Just a thin line: no vert deflection. or sound. Connect cable coax, and
>see color variations indicating reception.Looks like no horiz. sync as
>well. Is there a common voltage source feeding sound and vert?
>Looks like the vert output IC is IC401: LA78041. A pin out would be a
>nice start! Made in 2002. Orion CRT.
>Thanks.
>Phil
>
>
>
--
Philip Bader
Jan Phyl TV Inc. (estab. 1976)
3420 Recker Hwy. Winter Haven, Fl. 33880
Fax (863) 299-8821
email: tjanphyl@xxxxxxxxxxxxxxx
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