[TechAssist] Re: Toshiba 13" TVCR MV13M2 (Orion) dead. no 5V stby.
- From: John at Main TV <maintv@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 07 Aug 2003 10:42:14 -0600
I have the service manual in PDF (that someone else sent to me) or you
can access the manual for free at Memorex.com. Use memorex model
MVT2135B. The horiz B+ should be +135v. If that is working you should
also have the standby sources; always +12 on D512 cathode and power-on
+5v out of IC501-pin 2 (input on pin 1 and switching v on 4). Check for
always 12v on D512 cathode and see if it drops when you push the power
button. If so, change D512 and D514. Let me know if you need the
Toshiba manual. John.
Philip Bader wrote:
> Dead. HOT collector has about +200V on it! There are other standby volts
> around.Push power and nothing at all. I pulled chassis to access the I/R
> detector diode in front. No where on any pins is voltage. Usually a good
> place to find the 5V standby.
> So, guess no +5V stby for starters.
> There is one regulator IC (TO-220 package like 7805's) IC501: "KIA78
> R05P1" a four pin reg. NO output. Don't know if it's a switched output
> or my missing standby.
> Help!
> Phil Bader
--
John Mielke
Main TV
Longmont,Co 80501
303 776 6955
303 776 0792 fax
maintv@xxxxxxxxxxx
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