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ProScan PS35123 Schematic Needed
This is a 35" picture tube TV that was made in 1994. The fixed and variable audio out has stopped working but the TV speakers still work. I need a schematic for the TV so I can try and fix it.
thanks, Jon |
"GravelyGuy" wrote in message ... This is a 35" picture tube TV that was made in 1994. The fixed and variable audio out has stopped working but the TV speakers still work. I need a schematic for the TV so I can try and fix it. thanks, Jon -- GravelyGuy What good would a schematic be? The problem is likely to be something fairly obvious, check for cracked soldering or PC board traces in the area of the audio out jacks, and if that all looks ok, follow the traces to the audio section and look for bad soldering there. |
James Sweet wrote: "GravelyGuy" wrote in message ... This is a 35" picture tube TV that was made in 1994. The fixed and variable audio out has stopped working but the TV speakers still work. I need a schematic for the TV so I can try and fix it. thanks, Jon -- GravelyGuy What good would a schematic be? The problem is likely to be something fairly obvious, check for cracked soldering or PC board traces in the area of the audio out jacks, and if that all looks ok, follow the traces to the audio section and look for bad soldering there. |
James Sweet wrote: "GravelyGuy" wrote in message ... This is a 35" picture tube TV that was made in 1994. The fixed and variable audio out has stopped working but the TV speakers still work. I need a schematic for the TV so I can try and fix it. thanks, Jon -- GravelyGuy What good would a schematic be? The problem is likely to be something fairly obvious, check for cracked soldering or PC board traces in the area of the audio out jacks, and if that all looks ok, follow the traces to the audio section and look for bad soldering there. That is a RCA CTC169EJ5 Chassis which has a seperate audio output IC for external speakers. You do need a schematic to check out. Please confirm complete model & Chassis # & contact me, I have all that on CD & can print the nessary schematics & Email to you |
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On Sun, 23 Jan 2005 19:34:17 GMT, "James Sweet" wrote:
wrote in message roups.com... That is a RCA CTC 169EJ Chassis it has a seperate audio output IC for external speakers you will need a print. I have that on CD & can print needed schematics for you. Please confirm complete model & chassis # so I will be correct I'll Email next week Shouldn't need a schematic, trace the wiring back to the audio out chip, grab a datasheet from the chip manufacture's website, and take some measurements to see if the audio signal is getting into the chip, etc. Actually, there's about a half dozen variations on the 169 audio -- 5 and 10 watt analog, 5 and 10 watt digital, etc -- so he may just need the schematic. I seem to recall a similar problem as he described, I believe it was a leaky chip transistor on the audio board. Alan Harriman |
GravelyGuy wrote: This is a 35" picture tube TV that was made in 1994. The fixed and variable audio out has stopped working but the TV speakers still work. I need a schematic for the TV so I can try and fix it. thanks, Jon -- GravelyGuy I have printed the audio schematics & will mail to you with a proper Postal address I don't think they would be very good by E Mail |
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