[TechAssist] Re: RCA 19GT312 Chassis CTC175C2 Poor picture
- From: Jim Myers <jr.myers@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sun, 06 Nov 2005 07:18:48 -0500
Low heater voltage? Should be about 22vp-p.
The Old Master Technician
********************************
Since 1972 *
Jim Myers *
Telrad Electronics *
Fort Wayne Indiana *
********************************
Shaun wrote:
> Yes checked and reset eprom settings. The Green has to be turned up very
> high to work but the picture has purple where white should be and the green
> is balanced. I put a different chassis on this tube and it looked good. The
> problem is on the chassis the CRT is good maybe LA7610?
>
> Shaun
>
> Advanced Electronics
> 224 West Riverview Ave.
> Fort Morgan, CO 80701
> ----- Original Message -----
> From: "al m" <ampm@xxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Saturday, November 05, 2005 3:06 PM
> Subject: [TechAssist] Re: RCA 19GT312 Chassis CTC175C2 Poor picture
>
>
>
>>What do you mean by poor picture? Did you check the settings in the Eprom?
>>Al Marquardt
>>ampm@xxxxxxx
>>Al Marquardt Electronic Repair
>>206 W Main
>>Girardville Pa. 17935
>>----- Original Message -----
>>From: "Shaun" <satguy@xxxxxxxxxxxxx>
>>To: "tech" <techassist@xxxxxxxxxxxxx>
>>Sent: Saturday, November 05, 2005 4:35 PM
>>Subject: [TechAssist] RCA 19GT312 Chassis CTC175C2 Poor picture
>>
>>
>>
>>>This set has what looks like a bad CRT but it test very good with my
>>>Sencore
>>>CR70. I replaced Q5001, Q5002 and Q5003 no help. I scoped Q5004 and it
>
> is
>
>>>ok. I also looked at LA7610 pins 36, 37 and 38 they are all in the ball
>>>park. I just wanted some input before I condemn the tube.
>>>
>>>Shaun
>>>
>>>Advanced Electronics
>>>224 West Riverview Ave.
>>>Fort Morgan, CO 80701
>>>
>>
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