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Anonymous
RCA MIXED
Wed Dec 24, 2003 1:38pm
24.235.162.109

RCA
N/A
CTC178
SET IS STUCK IN PARENTAL LOCK MODE
PRESS 'MENU' ON REMOTE, THEN '5', THEN '1', THEN '1' AGAIN TO DISABLE PARENTAL LOCK FEATURE


RCA
N/A
CTC178
ON-SCREEN DISPLAY STAYS ON SCREEN UNTIL SET IS TURNED OFF WHEN THE 'DVD' BUTTON IS PRESSED ON THE REMOTE
CHECK/REPLACE U3101 (P/N# 236547)


RCA
N/A
CTC179
SET SHUTS DOWN ON LOW AC VOLTAGE THEN RESTARTS - MAY BE AN INTERMITTENT PROBLEM
CHECK/REPLACE CR3104 (P/N# 235831)


RCA
N/A
CTC179
FLYBACK BUZZES OR VIBRATES OR HIGH PITCHED SQUEAL
WEDGE (2) WOODEN TOOTHPICKS BETWEEN THE CIRCUIT BOARD AND THE LEGS OF THE GROUND CLIPS ON FLYBACK


RCA
N/A
CTC179
ON-SCREEN DISPLAY STAYS ON SCREEN UNTIL SET IS TURNED OFF WHEN THE 'DVD' BUTTON IS PRESSED ON THE REMOTE
CHECK/REPLACE U3101 (P/N# 236547)


RCA
N/A
CTC179
SET IS STUCK IN PARENTAL LOCK MODE
PRESS 'MENU' ON REMOTE, THEN '5', THEN '1', THEN '1' AGAIN TO DISABLE PARENTAL LOCK FEATURE


RCA
N/A
CTC179
INTERMITTENTLY PICTURE GOES SNOWY - LOOSES TUNING
CHECK/RESOLDER CONNECTIONS ON TUNER SHIELDS/GROUND CONTACTS AND MICROPROCESSOR SHIELDS


RCA
N/A
CTC184
INTERMITTENT VERTICAL SCAN AND/OR CHROMA/LUMINACE
CHECK/RESOLDER CONNECTIONS ON PLUGS P4801 AND P4802 - PROBLEM IS USUALLY THE PINS ON THE PLUG THEMSELVES OXIDIZED


RCA
N/A
CTC184
INTERMITTENT LOSS OF AUDIO OR VIDEO
CHECK/RESOLDER CONNECTIONS ON ALL GROUND SHIELDS AROUND TUNER AND SYSCON IC


RCA
N/A
CTC186
PICTURE GOES BLACK AFTER A 1/2 HOUR - OSD/AUDIO IS NORMAL
CHECK/REPLACE U2903 (7805 REGULATOR)


RCA
N/A
CTC186
DEAD SET WITH HIGH PITCHES SQUEAL
CHECK/REPLACE Q4401 (P/N# 217654 OR 2SD1555) AND CR4402 (P/N# 198596 OR ECG5808)


RCA
N/A
CTC186
SET DISPLAYS 'UNUSEABLE SIGNAL' ON CERTAIN SCENE CHANGES WHEN USING THE S-VIDEO OR INPUT JACKS
CHECK/REPLACE C1401 AND C1402 TO (1uF) (P/N# 220998)


RCA
N/A
CTC186
AUDIO DROPS OUT WHILE IN THE SAP MODE
REMOVE C1609 AND REPLACE WITH 47uF @ 25v (P/N# 193043), ADD A 100k (P/N# 192084) ACROSS C1609


RCA
N/A
CTC186
PICTURE BOWED ON THE SIDES AND NARROW WIDTH DURING CHANNEL CHANGE
CHECK/REPLACE C4407 (P/N# 214754)


RCA
N/A
CTC186
REGULATOR IC FAILS WHEN REPLACED - POWER SUPPLY SQUEALS AS THOUGH THERE IS A SHORT ON SECONDARY
CHECK/REPLACE C4137 (680pF @ 500v) FOR LEAKAGE


RCA
N/A
CTC186
AGC OVERLOAD - PIN #12 OF U1001 STAYS AT 8 VOLTS - WHEN 'IF' IS INJECTED AT PIN #1 OF U7301 , THEN NORMAL PICTURE
CHECK/REPLACE U7301 (P/N# 215532)


RCA
N/A
CTC186
SET SHUTS OFF INTERMITTENTLY
CHECK/RESOLDER CONNECTIONS ON FLYBACK XFRM. - ESPECIALLY PINS 1,2 & 3


RCA
N/A
CTC186
MENUS ROLL VERTICALLY ON SCREEN -- VERTICAL RETRACE ON THE TOP 3-4 INCHES OF SCREEN
CHECK/REPLACE IC4501 (TDA8172)


RCA
N/A
CTC186
SHUTS OFF INTERMITTENTLY
CHECK/REPLACE ON FLYBACK PINS, ESPECIALLY 1,2,8,10


RCA
N/A
CTC186
INTERMITTENT TUNER OPERATION
CHECK/REPLACE Y7401 (P/N# 182839)


RCA
N/A
CTC186
NO HORZ. SWEEP - ONLY HAS ONE VERTICAL LINE
CHECK/REPLACE C4403 (PART NUMBER VARIES DEPENDING ON CRT)


RCA
N/A
CTC186
INTERMITTENT LOSS OF AUDIO OR VIDEO
CHECK/RESOLDER CONNECTIONS ON ALL GROUND SHIELDS AROUND TUNER AND SYSCON IC


RCA
N/A
CTC188
SET SHUTS DOWN ON LOW AC VOLTAGE THEN RESTARTS - MAY BE AN INTERMITTENT PROBLEM
CHECK/REPLACE CR3104 (P/N# 235831)


RCA
N/A
CTC188
CONVERGENCE DRIFTS OVER TIME MAKE THE FOLLOWING CHANGES TO THE CONVERGENCE GENERATOR BD.
ADD 51k - ONE END ON PIN #5 OF U201V AND THE OTHER ON THE END OF R446 OPPOSITE U201V - ADD 51k FROM JW881 TO JW857


RCA
N/A
CTC188
CHANNEL GUIDE HAS EVERY OTHER CHANNEL MISSING FROM LIST WHEN USING SET ON A HRC OR IRC CABLE SYSTEM
CHECK/REPLACE U6808 (P/N# 227891)


RCA
N/A
CTC188
UNABLE TO ADJUST THE GREEN SUB-BIAS
CHECK/REPLACE KIT (P/N# 230055)


RCA
N/A
CTC189
CHANNEL GUIDE HAS EVERY OTHER CHANNEL MISSING FROM LIST WHEN USING SET ON A HRC OR IRC CABLE SYSTEM
CHECK/REPLACE U6808 (P/N# 227891)


RCA
N/A
CTC189
UNABLE TO ADJUST THE GREEN SUB-BIAS
CHECK/REPLACE KIT (P/N# 230055)


RCA
N/A
CTC189
SET SHUTS DOWN ON LOW AC VOLTAGE THEN RESTARTS - MAY BE AN INTERMITTENT PROBLEM
CHECK/REPLACE CR3104 (P/N# 235831)


RCA
F31375
CTC140
DEAD SET - POWER LED COMES ON THEN GOES OFF
CHECK/REPLACE CR4104


RCA
F35755MB
CTC179
INTERMITTENTLY PICTURE GOES SNOWY - LOOSES TUNING
CHECK/RESOLDER CONNECTIONS ON TUNER SHIELDS/GROUND CONTACTS AND MICROPROCESSOR SHIELDS

RCA
ctc167
Problem:repeated failure of q2901
Solution:minor internal arcing of crt,replace with ecg 129 [better protection than 159]

RCA
CTC168CA5
Problem:Won't start/intermittent start up
Solution:Replaced Q4101,U4101,C4108,C4102 and CR 4122.

RCA
ctc170
Set turns on, no video no audio. has on screen display
Replace audio, module
Comments:This set will come on With blue screen , on screen display says no signal, Menu will come up but no sound and no video no channel change, all so picture is slighly pulled in on the sides. replace audio module repairs

RCA
ctc140
bowed at sides
c4801 10ufd @25volts

RCA
FPR2723E1
CTC140E
Picture tears intermittently and set clicks 3 times before coming on.
Resolder U300 and R4322 near Horiz. Driver Transformer T300.

RCA
CTC168J
No Audio
Traced audio signal to IC U1501 input pins 2 &15, had audio here, but no audio on output pins 6&11, replaced IC 1501(#176226), still had same problem. Checked signal with scope on pins 3&4 of IC 1601 while pushing volume up or down button, had signal on pins 3&4, but no signal on pins 9,10,11,12. Replaced IC 1601(#204290) to solve no audio.

GE
20gt374
ctc176f
dead---has high voltage and a horiz line if screen is turned up
CR 4704 was open----there was no voltage at pin 32 of T chip

RCA
ctc176
eeprom replacment
build a double eeprom socket
Comments:To shorten eeprom replacement time, build an eeprom fixture. You need 2ea 8-pin sockets, 1 dpdt switch, 1 small bread board, 4-pin header, and some wire. Conect it so that the switch switches the clock and data lines(pins 5&6).Pin 8 is +5 and gnd pins1,2,3,4,&7. How this helps is if you have a bad eeprom install old and new eeproms in sockets conect in place of eeprom on chassis, start set with new eeprom, swith to old eeprom and look to see if tuner data is salvagable and wright it down, switch to new eeprom adjust values, turn set off and install new eeprom on chassis.

RCA
ctc186
eeprom replacment
build a double eeprom socket
Comments:To shorten eeprom replacement time, build an eeprom fixture. You need 2ea 8-pin sockets, 1 dpdt switch, 1 small bread board, 4-pin header, and some wire. Conect it so that the switch switches the clock and data lines(pins 5&6).Pin 8 is +5 and gnd pins1,2,3,4,&7. How this helps is if you have a bad eeprom install old and new eeproms in sockets conect in place of eeprom on chassis, start set with new eeprom, swith to old eeprom and look to see if tuner data is salvagable and wright it down, switch to new eeprom adjust values, turn set off and install new eeprom on chassis.

RCA
ctc157H
has sound no picture slick raster
C164 100uf 25v behind vert ic leaked and damaged trace jumper to r407

RCA
G27339HP
CTC159M
Picture rolling
R4518 8.2K 1/2 W resistor
Comments:Replaced all caps no good, replaced Vetical IC fixed. 6 months later same thing replaced IC again no good. found R4518 breaking down. Out of circuit it measured like a cap was attached to it. R4518 was off Q4503 vertical reset collector.

RCA
PS31122
CTC160EJ5
Too Wide- Pincushion
Q4802 pin output shorted MPS651 (NPN 80V 2A)

RCA
ctc140
pix bowed at sides
d763 open(ecg519)

RCA
ctc140
pix bowed at sides
c4801(10uf@25v)

RCA
ptk178, ctc178/179/188/189
Problem:Turns off and on, very intermittent.
Solution:Replace CR3104 with P/N 235831

RCA
P61960
PTK195
Problem:DEAD, no click, no start
Solution:Data line held low by conductive glue under SMDcaps C19503 and C19581
Comments:Comments:Remove caps, clean glue from board and replace caps. A good starting place on these dead sets is to check for 4.9vdc on P/J 19503 on the convergence board. Easy to get to. Of course the clock and data can be held low by a lot of things, but that plug is an easy place to start.

RCA tvcr
UDP19/UR24
In child protect mode.Won't come on.
Push and hold down remote power button till TV comes on.

RCA TV
F20517WN
Barely has sound at turn on. Warms up and has louder sound.
Adjust L201V counter-clockwise.

rca
mm52110/mmc102
dead,power lite on then off
cr 14129 shorted,off t14100 neg 15 volt supply

RCA
Vr501
lines/distortion in pic. both tape and tuner modes.
c16 in power supply 330uf 6.3v

RCA
CTC 130C
No Audio (both channels)
shorted C5,1000uf@25v (audio amp board)

RCA
F26051EM
CTC 167CN
No video/no sound/no click. Won't turn on.
C4605 (220uf/35v) High esr.
Comments:Located in 25v stand-by circuit.

RCA
VR618HF
Runs slow on play, shuts off on FF/RW.
Def filter cap in power supply C821 220/35v (high esr), should be < 1 ohm.

RCA
T20064
No tuner operation, missing AGC voltage at IC201pins 3 and 5
IC902 EEPROM #246682
Comments: I subbed with Toshiba EEPROM #23905036 24LC08B and it worked without any problems. Only setup alignments Original EEPROM KS24C021

RCA
MM36100
MM101CC
Shutdown after turn on
T14451 Vertical transformer
Goes into shutdown after power up can hear HV and may hear Audio momentarily as comes on. Defeating Scan loss shutdown transistor (short b-e) Q24105 located on horizontal SIP board, found no Horizontal deflection +67 volts at CR14409 and no pulse off T14451 pin 14, hor drive at Q14451 base @2vpp (normal 12vpp) Replacing T14451 fixed

RCA
F27185DW
CTC159N
No vertical sweep(line across screen). Pic dim w/green tint.
Def CR4501 (147015) nte125. Located on U4501 vertical IC.
Diode checked good with "diode test". 26v on anode, 0v on cathode, in circuit, w/power on.

RCA
T13072
UDP13/UR21 Combo
TV shuts down at turn on. Load Tray jambed.
Replace Gear (247174) Joint 2 & (247176) Cam Gear. Straighten load tray.
Customer jambed load try while extracting a jambed tape. Also damaged gears and speaker socket on chassis.

RCA
19TVR62;13TVR72
Problem:Erratic functions on front keyboard and with remote.
Solution:The keys being pressed by the CRT leaning back will send a signal to the CPU
Comments:, blocking out any signal that you are sending with the front keypad or the remote keypad. Just prop or tye the CRT forward, so that it won't lean back and activate any keys. You can check the front panel buttons, by pressing lightly on each button. The button should move freely and you should hear a "click", when it activates the tac switch. If you don't get this response, then tilt the top of the CRT fwd more.

RCA TV
F20517WN
Barely has sound at turn on. Warms up and has louder sound.
Adjust L201V counter-clockwise.

RCA
FJR530PR
CTC-120A
Picture slightly off frequency and roar in sound.
Adjust AFT freq coil L304 clockwise to clear up picture and sound.

RCA
p46000
intermittant snow on low VHF band
remove tuner - do large scale solder within with weller pyropen

GE
19tvr01
no vhf channels uhf ok
resolder multiple ground cracks inside tuner

RCA
MM32110
TV powers off by itself
Replace FBT

RCA
TV-VCR combo
dead LED on power flashes 6X when power depressed
set in child lock hold power button on remote for 10 sec to cleat

RCA
F19430
CN001A
Snowy Picture
I701 Microproccessor
Comments:do not replace tuner if 33 volts is present..however chk pins 3 and 4 of ic I101 if voltage is low unsolder pin 11 of L701 microproccessor if picture returns ..replace bad micro

RCA
VR678HF
Dim Display
C821 220@16 in MSP
Comments:Uses DC on display filaments. Scope across filamenrs showed pulses at MSP freq.

RCA
VR685HF
DEAD-NO DISPLAY
C1014,C1022,C1023,C1017,C1009

GE
13GP236
TX81G
Dead; HOT shorted and blown 2.5amp fuse
Replace Horiz O/P (S2C71) with NTE2354 and replaced CP23 (1000 @ 25v)

RCA
F27TF12
No green in picture
R875 220K 1/4W on CRT board
Comments:This chassis is a Sharp chassis in a Rca cabinet

RCA
CTC-130B
Horizontal tearing in picture, IHVT arcing sound.
C654 100uf 16v cap will be dried out.
Comments:Next to a large rectifier in MTT Tuner.

RCA
E13250BT
13GP137
Intermittent sound.
Broken end of C104.
Comments:Can't see crack. Comes apart by unsoldering. By sound coil.

RCA
13GP137
Intermittent or no sound.
Broken board on pin 3 of I501Audio output IC.
Comments:Look under R504.

GE
GMR2740T
CTC133B
Turns off/on (erratic). Vert retrace at top of picture.
C510 (4.7uf/100v). Resolder defective connections in MTT008.

GE
35GT690
CTC187CN3
Dead power supply.
F4001(GMA 5), U4101(223948) STK730-150, CR4106(243636), C4105(10uf/200v), R4001(2.7 ohm 15w), R4129(100k smd)




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  • RCA CTC-203Anonymous, Wed Dec 24 1:27pm
    RCA CTC203 NO VERTICAL DEFLECTION-INTERMITTENT REPAIR BROKEN VERTICAL PLUG ON SMALL PCB ON YOKE WHERE VERT PLUGS INTO YOKE RCA CTC203 VERTICAL COLLAPSE INTERMITTENT REPAIR BROKEN PLUG ON SMALL PC... more
    • ctc203wpohl1, Tue Apr 1 6:43am
      CTC203 dead set replaced HOT(2sc5148), Flyback(257151 solder all problem areas-have "jail bars" on left of screen-all else is "OK"? filtered screen circuit! Anyone have IDEAS?-Thanks Wayne
      • Re: ctc203oscar , Fri Mar 9 3:07pm
        you have bad filter off boster voltoge 33 mfd or 47 mfd 250 volts or higer
      • CTC 203 jail barsDani, Wed Apr 2 9:22am
        If you use a generic flyback, this will sometimes cause this problem. Try an ASTI, or HR flyback. Dani
      • Re: ctc203Anonymous, Wed Apr 2 9:01am
        Could find nothing on jail bars on that chassis, could be the flyback if it was not an oem and the bars were not their before replacement.
      • Jail barsJames P Daly, Wed Apr 2 1:30am
        Sure sounds like you have a bad electrolytic in boost supply. Look for a cap with value between 1mf and 10mf at 160-450volt. Should be somewhere around flyback or on CRT module.
    • Re: RCA CTC-211Anonymous, Sun Oct 10 8:23pm
      RCA D61130 CTC211 convergence Totally MIS-CONVERGED. No convergence menu. Convergence output heatsinks are cold . , NO B+ from the convergence power supply. Found that C19714 (PARALLEL TO CR19710)... more
      • nothing wrongbrandon, Wed Mar 2 10:33pm
        my tv works great but my kid got a screw driver and tured all the front panel screws in the rca ctc178 series and messed up the picture how to get back the setting on the board back theres nothing... more
    • RCA MIXED — Anonymous, Wed Dec 24 1:38pm
      • GE 13TVR62 tv/vcr comboSlick, Mon Oct 11 9:13am
        Would power up and screen/audio on for 10 sec. then lose horiz. drive/dead. Set died originally, so customer opened up to get tape out. Original failure was RW002 (1 ohm) on vcr board,this restore... more
      • RCA TX chassisAnonymous, Wed Dec 24 1:41pm
        RCA E13320SE TX825TC Auto-programming stops at channel#95 &then locks up. Replace LM07=AFT coil Comments:When unit locks up,you cannot power on/off,no front panel or remote functions.The screen locks ... more
        • RCA MM32110 MM101Anonymous, Sun Oct 10 8:02pm
          RCA MM32110 MM101 Display Picture has odd defocused condition across the CRT. Can be seen if high detail images are placed on the screen. Checking the dynamic focus circuit we found an abrubt spike... more
          • RCA MM102 MM52100Anonymous, Sun Oct 10 8:06pm
            RCA MM102 MM52100 No Raster Unit has no raster but has sound and high voltage. Closer inspection finds the set has not illumination from filaments on all CRT's checking the circuitry that drive the... more
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