[TechAssist] Re: CTC203 won't start and click
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 17 Jan 2003 09:04:48 -0500
Pete,
Not much to go on here but this should give you something to chew on for a
while:
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Text pasted from WinSTIPS 2.0
http://www.ServiceSoftware.com
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RCA CTC203
Dead: Clicks 3 Times
Cr14704 Scan Supply Diode Shorted
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RCA CTC203
High Voltage No Go - Has Audio
Palmetto Electronics, Inc.
Connections At L14401 At Base Of Horz Output Transistor
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RCA CTC203
Power Supply Chirping (At A Very High Rate)
Stroud Tv & Audio Inc.
Shorted Cr14402 [Damper Diode]
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RCA CTC203
Relay Clicks Very Fast
Greg@xxxxxxxxxxxx
Cr14402
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RCA CTC203
Shuts Down. Pulses 4 Times Then Shutsdown
Austin Tv & Electronics
Solution: Cr14115 Off Of 5v Regulator. For The Tuner. Leaks Under Load
Causing Shutdown
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RCA CTC203
Dead
Sam Oyler : Electric Medic
Replace Q14101,Q14102,Q14103,R14107 & 5 A Gma Fuse
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RCA CTC203
Dead
Computer & Communication Solutions Www.Ccsinc.Com 804-642-9731
Replace Q14101 P/N 244223, & Q14103 P/N 232218 Both Should Be Done Together
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RCA CTC203
Dead
Darrell Chassis: Ctc203
R14605 330k-1/2w on standby power supply module
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RCA CTC203
Dead
Palmetto Electronics, Inc.
T14301 Horz Driver Transformer (252843), R14305 Resistor (235380), Q14301
Horz Driver Transistor (146851 Subs To 185197)
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RCA CTC203
Dead
Perry Bower - Electric Medic
If The Set Has The Gemstar With The Two Flat Ribbon Cables, Then It Is
Probably Bad. Very Common Problem. We Have Several Different Versions Of
Gemstar For Test, That Is The First Thing We Sub On The Ctc203 Chassis For
Dead Set.
If That Is Not It, Unsolder The Collector Of The H.O.T., Then If Set Starts
Up With Sound, Then The Flyback Is Bad. These Two Fixes Probably Represent
80% Of All Failures, (Non-Lightning, And Power Supply Problems), That We See
In Our Service Center.
There Is A Coil Between The Secondary Of The Horizontal Drive Transformer
And The Base Of The H.O.T. That Usually Causes Intermittent Operation. The
Set Normally Will Have Sound When
That Connection Is Bad.
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RCA CTC203
Dead
B+ Ok, Zero Volts On Q14101 Gate R141103 Open
Replace R14103 1 Meg Resistor Half Watt In Regulator Circuit.
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RCA CTC203
Dead
Technos - Chassis = CTC203AC5
T14301 Horz Dr. Transformer Burnt 202843
Resistor R14305 235380
And Q14301 146851 Bad
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RCA CTC203
Dead
Phil Hull
Found Many Bad Connections On The Flyback Transformer. T14401
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RCA CTC203
Dead
Brynmawr Tv John
Replace Open R14103 1 Meg 1/4 W Part # 176457
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RCA CTC203
Dead - Chirps At Plug In
Q14104 Leaky. Switch For 12 V Regulator
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RCA CTC203
Dead - Chirps At Plug In Chipper Check Error Code 3
Bryn Mawr Tv
Crack In Board Area Of Heatsink Location N7 Near Q14104
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RCA CTC203
Dead - Shorted Q14401 Horizontal Output
Caused By Intermittent Open Solder Connection At The Input End Of L14401.
That Coil Connects The Driver Transformer To The Base Of The Output
Transistor.
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RCA CTC203
Dead / Gemstar 4 Troubleshooting Procedure
Stroud Tv & Audio Inc.
Gemstar Ribbons J13104 (13pin) Check [4,6,8]=5v (Keyscan) / [7]=~5v (Reset)
/ [12,13]=5v (Data-Clock] J13103 (19pin) Ck [15]=16v Stby [10, 12]=5v Stby.
Volts Ok (Gemstar Bad) / Not / Remove Plugs Recheck
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RCA CTC203
Dead After Lightning Storm
Bay Electronics Inc.
U14101(Pc817/ Ecg 3098) -----And Or----U14102 (431c /Ecg 999)
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RCA CTC203
Dead Can Hear Slight Ticking.
Tims Tv
Bad Crital Cap Location C14102 Part # 237355
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RCA CTC203
Dead Fuse Ok Hor Out Shorted
John Kincaid Sos Tv
Flyback Mfr.# 224229 Says Pn 1536119a On Fly Hor Out 237470 2sc5148
Just Change Them Both
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RCA CTC203
Dead No Smps Startup (No Sound At All At Plug In)
Computer & Communication Solutions Www.Ccsinc.Com 804-642-9731
R14101 1 Meg In Primary Portion Of Power Supply 1meg 1/8watt
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RCA CTC203
Dead Set
Bob Waterman, Cet Gemini Computer & Tv
Open Resistor R14103 (1 Megohm 1/4 Watt - Rca Part# 176457) On Primary Side
Of Power Supply
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RCA CTC203
Dead Set / No Start Up
Dick'S Radio & Tv, Inc.
Open R14162 (1meg)
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RCA CTC203
Dead Set. Eeprom Communicates W/ Uproc & Turns Off(As It Should)
Palmetto Electronics, Inc.
Chipper Check To See Error Codes. If One Loss Of 12v Run Supply, Check
Output Of U14104 For 12v When Pwr Button Pressed. If Not There, 1st Of The
2 Horiz. Drvr. Xstrs Won'T Pass Sig. 3-Term. Reg.,Rca#162394
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RCA CTC203
Dead,
Technos
C13110 Smd/1000pf May Have Glue Under Or Be Bad,Voltage At Pin #7 Of Ic
U13101 Low,No Leakage Found,Cap Location Is At Pin #7
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RCA CTC203
Dead, Smps Voltages Ok...
D.A. Electronics
U14104 "Run" 12v Regulator Lm7812ct, Subbed In 12 Volts To Determine Bad.
When Subbing In 16 Volts On Input Would Output Only 6 Volts And Then Jump To
10 Volts.
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RCA CTC203
Dead. 140vdc Line Running Around ~55vdc
Stroud Tv & Audio Inc.
Cr14117 (16vdc Zeiner) (244224) Shorted
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RCA CTC203
Dead. Fuse Ok.
Bryce - Vision Video Labs, Inc
Unsoldering Collector Of Hot, Unit Came On With Audio. Found That The Unit
Was Going Into X-Ray Protect Due To Q14901 Shorted E-B. Transistor Is #
147665 (Pnp)
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RCA CTC203
Dead. Power Supply Secondaries Running Low
Big Pines Tv
Cr14105 (198589) - (Nte519) Primary Power Supply
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RCA CTC203
Dead. Q14101 Burnt
Tv Traders Inc.
Replace Hot #Q14401 (242224), Q1401 (244223), Q4101, Q1402 (Mps8599) =
Ecg159, Q1403 (Mpsa06 ) = Ecg287 And Fuse
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RCA CTC203
Dead. Repeat Failure Of The Horiz Output Transistor
Jerry - Vision Video Labs, Inc
Set Would Come On, But The Horizontal Output Would Blow After A Few Seconds.
Found Diode Cr14704 Shorted.
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RCA CTC203
Dead. when plugged in, tick-tic-tic from power supply
Kent Baldwin
U14102 and U14102
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RCA CTC203
Dead.: Tries To Start But Fails
Jeff Stielau : Shoreline Electronics
Cracked/Burnt Connections At Yoke Plug Eyelets
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RCA CTC203
Dead: Clicks 3 Times
Cr14704 Scan Supply Diode Shorted
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Bob Waterman, CET® #RI-28
Master Technician License #9109
Service Manager
Gemini Computer, TV, & Security Alarms
(508)695-7302
(508)695-7769 FAX
geminitv@xxxxxxxxxxxxxxxx
geminitv@xxxxxxx
----- Original Message -----
From: "Pete" <wpt19@xxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, January 17, 2003 8:40 AM
Subject: [TechAssist] CTC203 won't start and click
>
> 3 times
>
> This set, when you push power try to start, but it won't, then makes 3
> clicks on the degauss rely. The B+ current to the fly rise to 1.5 amps
> then B+ voltage drop to 20V and start clicking. Replaced fly back,yoke,
> HOT,ringing caps and diodes,
> and pin amp transistor with no results.
> Any help please will be very appreciated,
> Thanks in advance.
>
>
>
>
>
> Pete
>
> Perdomo Tv Inc.
> Miami, Fla.
> wpt19@xxxxxxxxx
>
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