[TechAssist] Re: CTC130 Tuning Problems
- From: "Jerry" <geiting@xxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 17 Nov 2001 13:40:18 -0500
I have seen problems on these tuner (MST series) with leaky band switching
diodes (especially after a power surge/lightning storm) and with the
tuning/bandswitch decoder ic that will put out the wrong band sw. voltages
(rare). The diodes can be had to find, as they don't usually short
completely. If you need it, I can email you a diagram of the tuner if you
tell me which variation of it you have (MTT00??).
Jerry
Christians Electronic Service
----- Original Message -----
From: "OrpheusComputing.com Repair" <techassist@xxxxxxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, November 17, 2001 1:02 PM
Subject: [TechAssist] Re: CTC130 Tuning Problems
|
| I take it you already resoldered the tuner module. Did you
| try to adjust the detector coil inside the tuner? Might be
| Q605 & C317.
| -Clint
|
| God Bless Us All
| Clint Hamilton, Owner
| http://OrpheusComputing.com
| sales@xxxxxxxxxxxxxxxxxxxx
| Fax: 209-882-9602
| TechAssist Administration
| http://tech-assist.org
| techassist@xxxxxxxxxxxxx
| (PLEASE include our previous correspondence
| if replying to this email!!)
|
| ----- Original Message -----
| From: "Teal, David" <Teald@xxxxxxxxxxx>
| To: <techassist@xxxxxxxxxxxxx>
| Sent: Saturday, November 17, 2001 11:42 AM
| Subject: [TechAssist] CTC130 Tuning Problems
|
|
|
| I have an RCA CTC130 in the shop that will not detect
| channels above 37 when "auto programming". Channels 30-37 are
| very noisy, while the rest (2-29) are very clear. Any known
| problems with this particular chassis in the tuner section?
|
| Thanks,
| Dave Teal
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