Question about RCA E13345 13" TV

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RCA Chassis TX808D, No High Voltage.

I've checked the high voltage circuit, pin 29 of Jungle Ic does not go over 3.2V. I also checked pin26, the HVcc. The voltage goes to about 7v then shuts off. I desolded pin 26 and voltage does same thing.  I've checked the 9v regulator, seems like its working when I compared it to another unit.  What I did notice is when unit is plugged in without pressing the power button, I hear a slight buzzing sound from the power supply. The working unit does not buzz. I believe unit was hit by lightning. Any help is appreciated.

Thanks Jimmy 

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Re: RCA Chassis TX808D, No High Voltage.

12 Volt regulator circuit usual culprit......replace
1) TP 15 = 198752 sub 185197 sub generic
2) DP02 = SK12A 12v zener  

solder any bad connects.....T.

Posted on Oct 25, 2007

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Re: RCA Chassis TX808D, No High Voltage.

Did you check the horizontal output? then check all zener diode at the hotside! can you give me the number of all power regulator at the hot and cold area!?

Posted on Oct 22, 2007

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Toshiba 24af45 horizontal

If rolling in a right to left and not up down it is a sync problem--horizontal sync comes from one of two places in general---a pulse off the high voltage transformer or directly off of what is called in the trade the Jungle IC.

That is not a joke--Most of these sets use a large IC (63 pins or more not unusual) that contains: color, video, vertical drive, ABL and much more---so much is crammed into that chip it decades ago was named the Jungle for clear reasons.

A schematic and or scope may be needed to trace and find what is bad.

if off the high voltage transformer (more common in old sets than new ones) it will be a open resistor.

If at the jungle you would have to go to the pin with the sync and follow it out to see if none at source or if lost somewhere down the stream.

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Sony KV-27HFR TV, no picture no sound; but got HV

The high voltage transformer may be the problem, because it feeds back secondary voltages to different parts of the set, for example is the vertical deflection voltage present at the ic, if memory serves me there should be around 26volts, if it's missing it means the fuse is open or the flyback pin is not generating the voltage.

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  • Unit is dead, No blinks - Problem in the standby power section. Might check fuse, R607, Q601, IC601, R612 and VDR601 (should show open).
  • Continuous blink once a second, no pausing - No reply from the jungle IC301 (data bus is busy, shorted to ground, or held high), IK video path is defective.
  • One blink - not used for the self-diagnosis
  • Two blinks - B+ over current protection (OCP), unit goes to the standby mode then displays the 2 blink fault. Could be a short in the power supply of any of the circuits.
  • Three blinks - B+ over voltage protection (OVP), unit goes to the standby mode then displays the 3 blink fault. This is also a problem in the power supply circuit, check T603 and R672.
  • Four blinks - No vertical Deflection (V STOP), Screen goes to a single horizontal line then the video signal muted. Check IC1509, Q1505
  • Five blinks - AKB circuit (automatic kine bias), the timer/standby indicator blinks for about 30 seconds then goes to the self-diagnosis function. Something is wrong with the video. Check video out, Q705, 732, 761 and other components on the C board, also check Q218, 219, 220 on the A board. In addition, unit could be in IK blanking, try turning up screen slightly.
  • Six blinks - No Horizontal (H STOP), no raster, goes to the blinking self-diagnosis function immediately. Check C515 & 516 and the jungle IC, IC206.
  • Seven blinks - High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits.
  • Eight blinks - Problem with the audio (AUDIO), unit goes to standby and blinks the self-diagnosis code. Check IC406audio amp, PS401, and 402. On some projection models of Sony TV sets, this code means that T8005 (flyback transformer), or the associative components in the high voltage circuits are defective on the D board.

  • Nine blinks - Replace D 6116 and D 6301 on the "G" board, do not resolder as this will fix the problem temporary. Or Panel Module Error or Thermal Error. If it is intermittent 9 blinks, meaning sometimes the TV comes on and other times you get flashing, then change the switching regulator on the "G" board or check connections. Make sure the regulator is -12 or -13 (negitive).
  • Ten blinks - Check Q8014 and Q8013 for shorts, leakage, or bad solder connections on the " D" board. If the transistors are bad, check R8051 and IC8005, also on the "D" board.
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1 Answer

My TV have a white screen and Heat Run on it.

This is an indication of unstable supply of voltage inside the circuit (board)this happens when capacitors from the high voltage section are worn out (leak).Replacing the capacitors from the high voltage section which appears to be bulging and leak will eliminate the problem..also resolder some loose connection of parts from the pcboard..

clean the system IC .remove some corrosion on in between pins of it..system IC is the IC that controls the input command on buttons.Use a paint brush to clean the surface of the board ..good luck!

note!make sure you unplug the TV before operation..

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I have a 2006 RCA model R52WH73. The horazonal lines suddenly went to being concave lines and now you see a double image.

horizontal circuit problem .. vertical double image or horizontal.. check screen voltage and focus setting on board. CAUTION: EXTREME HIGH VOLTAGE. QUALIFIED SERVICE PERSONELL ONLY .. serioius high voltage..

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1 Answer

Will not come on, pops then blinks 8 times

what a wonderful day it is my friend. you have a high voltage problem. high voltage problems happen when high voltage reaches the x-ray protection circuit and shuts the chassis down.the problem could be an open or change in capacitance of the bypass cap or a defective high voltage output transformer(ihvt). also check the horizontal output and flyback for defective circuits. i hope this help solve your proble. this is definitely a job for a service tech because you will be dealing with very high and dangerous voltages. please rate my solution, and thank you friend.

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1 Answer

The picture on My RCA F36650 flashes off and on after it warms up

These units have a reputation of loose solder joints in the horizontal/high voltage circuit. As this is a dangerous circuit be carefull if trying to repair it yourself. Always unplug before attempting a repair. Start by soldering the horizontal driver transformer. This is a small four pin transformer just off of the base of the horizontal output transistor. Solder these four pins and work your way soldering everything up to the horizontal output. While you are there be looking all over the board for little burnt places at solder joints. Next, work your way from the collector of the horizontal output to the high voltage transformer. Remember also to solder both legs of all components that you come across. Solder all the legs of the high voltage transformer. I hope this helps and thanks for using fixya. I am here to help.

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Stand by light blinks 6 times, wont power on

Here you find sony blinking codes

SIX Blinks---No Horizontal (H STOP), no raster, goes to the blinking selfdiagnosis
function immediately. Check C515 & 516 and the jungle IC, IC206.

SEVEN Blinks---High voltage shutdown. The high voltage has exceeded 33k
and the unit goes immediately into safety shutdown. Check power supply
regulation and horizontal circuits.

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crt beam current too high causing shutdown as you know. Check cathode voltage of each cathode, normal levels depend on picture is around 130-150V. Missing 200V to crt board. Screen voltage problem normal 300-500V. Flyback or bad crt. ABL circuit problem. Jungle IC.

Oct 29, 2007 | Philips Magnavox TP3285C 32" TV

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