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worm1 Guest
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Posted: Sun Jun 17, 2012 12:10 am Post subject: RCA F36648 CHASSIS CTC203CA5 |
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TV powers on fine but has a solid white line across the screen from left to right or from right to left, has a resistor R14509 that is white in color I know it horizional claps. also need to know value of resistor.
I want too learn,they say ask and you shell rececive. |
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jts1957
Joined: 24 Nov 2008 Posts: 2476 Location: Far, Far Away
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Posted: Sun Jun 17, 2012 2:29 am Post subject: |
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R14509 - 300 ohm 2 Watt 10%
"has a solid white line across the screen from left to right or from right to left" - would be a description of a 'verical claps' (as you would have most likely put it)
"horizional claps" - would be a line running from the top to the bottom of the screen (at the center of the screen). _________________ You're over there, I'm over here. |
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Guest
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Posted: Thu Jun 21, 2012 2:34 am Post subject: |
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You are right I stand corrected.
Would you know the kit for the vertcal claps kit?
This is what I think it is Three capacitors 3300mf,25v 1000mf,25v 220mf,25v IC TDA8172 2.resistors R14508 R14509 think. what other components should I be looking could it be the flyback because of the the flowing.
The TDA8172 PIN Connection Schematic defines its lead as follows:
1. Inverting Output
2. Supply Voltage
3. Flyback Generator
4. Ground or Negative Supply
5. Output
6. Output Stage Supply
7. Non-inverting Input
A. Tab connected to Pin 4
Do you have a schematic for this chassis that I may get. |
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jts1957
Joined: 24 Nov 2008 Posts: 2476 Location: Far, Far Away
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Posted: Fri Jun 22, 2012 10:38 am Post subject: |
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Replace all three cap the one 300 ohm resistor and the vertical IC still has a horizontal claps.
Need help please |
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jts1957
Joined: 24 Nov 2008 Posts: 2476 Location: Far, Far Away
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Posted: Fri Jun 22, 2012 3:11 pm Post subject: |
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Voltage measurements on IC pins:
1. Inverting Output
2. Supply Voltage
3. Flyback Generator
4. Ground or Negative Supply
5. Output
6. Output Stage Supply
7. Non-inverting Input _________________ You're over there, I'm over here. |
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