[TechAssist] Re: RCA TV F27628-CTC203AA13
- From: "Adolph Gower" <agower@xxxxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 19 Oct 2004 01:56:55 -0700
Resolder driver transformer!!!
CTV ELECTRONICS RECYCLE & REPAIR
CORDOVA TV
3415 Comet Court
Sacramento, Ca. 95827-2924
agower@accessbee,com
agower@xxxxxxxxxxxxx
Fax (916) 363-8359
Phone (916) 698-6565
Fax (916) 363-8359
Phone (916) 698-6565
agower@xxxxxxxxxxxxxxxxxx
(916) 698-6565
----- Original Message -----
From: "John H Smit" <jhsm@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: 2004Äê10ÔÂ18ÈÕ 13:28
Subject: [TechAssist] RCA TV F27628-CTC203AA13
: Hello to all.
: I have this set and it will play for several days and it was taking out
: Q14302 a while ago and I replaces it again and checked all the voltages
in
: the power supply and the horizontal circuit,and it all looks good then
it
: shorted Q14301 the horizontal driver and did it again after two weeks
the
: only difference I could see was the collector voltage on Q14301 it shows
72
: volt on the Sams and it measures 81 volt.
:
: I rang the flyback and it gives 71 rings on the VA62,and then when I
read
: the highvoltage it is only 21.0 Kv instead of 26.0-28.0 KV.
: It never shorted out the horizontal out transistor which is unusual I
think.
: The drive waveform on the base of Q14401 shows a good waveform and
amplitude
: but on the collector the amplitude is lower then normal.
: I ran out of idea's to find the problem so I turn to Techassist for
help.
: So please give me a break and give me the answer.
: I appreciate any reply on this.
: Thank you in advance
: John H Smit
: Smit's TV Service
: Box10
: Gunnison Utah 84634
: 800-355-4948 Fax&Phone
: 435-528-7955 Fax&Phone
: jhsm@xxxxxxxxxx
:
:
:
:
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