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Anonymous
RCA CTC-177
Wed Dec 24, 2003 12:58pm
24.235.162.109

RCA
CTC177
PICTURE GOES BLACK AFTER A 1/2 HOUR - OSD/AUDIO IS NORMAL
CHECK/REPLACE U2903 (7805 REGULATOR)


RCA
N/A
CTC177
DEAD SET WITH NO SOUND OR PICTURE BUT HAS HIGH VOLTAGE
CHECK/REPLACE CR4704 (P/N# 207878),R4702 (P/N# 215211) AND R4517 (P/N# 215208)


RCA
N/A
CTC177
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
CTC177
DEAD SET
CHECK/REPLACE R4104 (1.5m @ 1/2w)


RCA
N/A
CTC177
DISTORTED AUDIO WHEN TUNED TO NATIONAL WEATHER SERVICE
CHANGE C4705 WITH A 3300pF @ 16v (P/N# 221016)


RCA
N/A
CTC177
NO OSD AND NO REMOTE OPERATION
CHECK/REPLACE CR4104 (5.6v ZENER - P/N# 215488), Q4103 AND Q4105 (P/N# 146851)


RCA
N/A
CTC177
DEAD SET WITH NO SOUND OR PICTURE BUT HAS HIGH VOLTAGE
CHECK/REPLACE CR4704,R4702 AND R4517


RCA
N/A
CTC177
DEAD SET WITH NO SOUND OR PICTURE BUT HAS HIGH VOLTAGE
CHECK/REPLACE CR4704 (P/N# 207878),R4702 (3.3 P/N# 217315) AND R4517 (24 P/N# 217314)


RCA
N/A
CTC177
UNABLE TO TUNE ABOVE CHANNEL 4 OR INTERMITTENT SHUTDOWN
CHECK/RESOLDER CONNECTIONS ON ALL GROUND SHIELDS AROUND TUNER AND SYSCON IC


RCA
N/A
CTC177
INTERMITTENT TUNER OPERATION
CHECK/REPLACE Y7401 (P/N# 182839)


RCA
N/A
CTC177
MENUS ROLL VERTICALLY ON SCREEN -- VERTICAL RETRACE ON THE TOP 3-4 INCHES OF SCREEN
CHECK/REPLACE IC4501 (TDA8172)


RCA
N/A
CTC177
NO COLOR ON SOME CHANNELS OR ON SOME VIDEO GAMES
CHECK VALUE OF R2805, IF NOT A 750 , THEN REPL. (PN#215200) CHANGE R2806 TO A JUMPER,REMOVE C2806,ADD 1uF TO C2801 PADS


RCA
N/A
CTC177
WILL NOT TUNE ANY CHANNELS - ONLY HAS SNOW
CHECK/REPLACE Y7401 (P/N# 182839)


RCA
N/A
CTC177
POOR REGULATION - B+ RUNNING ABOUT 120v
CHECK/REPLACE Q4153 FOR LEAKAGE - MAY CHECK FINE OUT OF CIRCUIT


RCA
N/A
CTC177
PICTURE BOWED ON THE SIDES AND NARROW WIDTH DURING CHANNEL CHANGE
CHECK/REPLACE C4407 (P/N# 214754)


RCA
N/A
CTC177
CHROMA BAR AT THE TOP OF THE PICTURE DURING PLAYBACK OF A VIDEO TAPE
CHECK/REPLACE U1001 (P/N# 215524)


RCA
N/A
CTC177
NO STEREO - OSD STEREO INDICATOR NEVER COMES ON
CHECK/REPLACE C1707 (P/N# 205230)


RCA
N/A
CTC177
NO VERTICAL AND NO AUDIO
CHECK/REPLACE CR4704 (P/N# 207878)


RCA
N/A
CTC177
DEAD SET OR INTERMITTENT SHUTDOWN
CHECK/REPLACE T4101 OR CHECK CONNECTIONS ON PIN 8


RCA
N/A
CTC177
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
CTC177
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
CTC177
TUNER LOCAL OSCILLATOR DROPS OUT ON BAND TWO
CHANGE C7311 TO NEW PART (P/N# 194906) - BANDS ONE AND TWO OF TUNER MUST BE REALIGNED


RCA
N/A
CTC177
INTERMITTENT LOSS OF AUDIO OR VIDEO
CHECK/RESOLDER CONNECTIONS ON ALL GROUND SHIELDS AROUND TUNER AND SYSCON IC


RCA
N/A
CTC177
NO VERTICAL SWEEP - MISSING 24v SUPPLY FROM FLYBACK
CHECK/RESOLDER CONNECTIONS ON PIN #10 OF FLYBACK


RCA
N/A
CTC177
NO HORZ. SWEEP - ONLY HAS ONE VERTICAL LINE
CHECK/REPLACE C4403 (PART NUMBER VARIES DEPENDING ON CRT)


RCA
N/A
CTC177
SHUTS OFF INTERMITTENTLY
CHECK/REPLACE ON FLYBACK PINS, ESPECIALLY 1,2,8,10


RCA
N/A
CTC177
PICTURE BLANKS WHEN FRONT PANEL MENU BUTTON IS PRESSED
CHECK/REPLACE C3113 (P/N# 195689) FOR OPEN


RCA
N/A
CTC177
SET TURNS ITSELF ON AND OFF, CHANGES CHANNELS,MENU COMES UP AND MUTES ITSELF
CHECK/REPLACE IR3401


RCA
N/A
CTC177
OSD AND MENUS ROLLS
CHECK/REPLACE C3317


RCA
N/A
CTC177
POOR PINCUSHION - PICTURE IS TOO WIDE - 27' & 31' ONLY
CHECK/REPLACE C4407 (0.047uF @ 400v) AND CR4403 (ECG580)


RCA
N/A
CTC177
NO VERTICAL AND R4511 IS BURNED
CHECK/REPLACE U4501 (P/N# 215531) AND R4511 (P/N# 215577)


RCA
N/A
CTC177
INTERMITTENT VERTICAL SWEEP OR SET TRIES TO COLLAPSE AT THE TOP
CHECK/RESOLDER CONNECTIONS ON U1001 PINS 15,16,17 AND 18 AND ALL PINS ON U4501


RCA
N/A
CTC177
NO VERTICAL SWEEP
CHECK/REPLACE C4503 (SMD) - U4501 (P/N# 215531)


RCA
N/A
CTC177
INTERMITTENT VERTICAL SWEEP
CHECK/RESOLDER CONNECTIONS ON ALL GROUND SHEILDS AROUND TUNER AND SYSCON IC


RCA
N/A
CTC177
LOW OR NO SOUND
REPAIRED ALL COMMON GROUND CONNECTIONS AND REPLACE EEPROM


RCA
25"
CTC177AH
Dead Set from Lightning
replaced C4007 680uf 200V & 5A 125 V Fuse

RCA/GE
ctc177
weak or no channels above chan. 50
solder flow from ground to R7147 smd caused by previous tech
Comments:This basically grounded collectors of Q7403 & Q7404.

RCA or GE
CTC 175.ctc176,ctc177,ctc184,ctc186,andctc187.
Loose grounds
ALL tuner grounds-Thomson tec tip # TV96-005
Comments:All tuner and micro processor grounds should be soldered. There are 12 points inside that are on the internal shield.Thomson techenical information # TV96-005 goes into detail

rca
ctc177bh2
excessive width
replace cr4403 243636 and c4407 .047 400v
Comments:replace these parts should correct prob. also replace thermistor with new version (SEALED) old ones tend to fall apart after handling board

RCA
CTC177
Picture & sound would blink/blank off reappear with OSD then keep recycling OSD on/off
Replaced R3131 470k SMD probably cracked, broke apart when unsoldered.

RCA
F27251
CTC177
NO HORZ. SWEEP - ONLY HAS ONE VERTICAL LINE
CHECK/REPLACE C4403 (PART NUMBER VARIES DEPENDING ON CRT)


RCA
F27251
CTC177
POOR PINCUSHION - PICTURE IS TOO WIDE
CHECK/REPLACE C4407 (0.047uF @ 400v) AND CR4403 (ECG580)


RCA
F27632
CTC177
DEAD SET - NO ATTEMPT TO START-UP
CHECK/REPLACE R4104 (1.5meg )


RCA
F27671
CTC177
REGULATOR IC FAILS WHEN REPLACED - POWER SUPPLY SQUEALS AS THOUGH THERE IS A SHORT ON SECONDARY
CHECK/REPLACE C4137 (680pF @ 500v) FOR LEAKAGE

RCA
Model:
Chassis:CTC177AH
Problem:Dead Set from Lightning
Solution:replaced C4007 680uf 200V & 5A 125 V Fuse

RCA
Model:25GT503
Chassis:CTC177AA2/3
Problem:Low volume.
Solution:Soldered R1916 to closest ground.
Comments:if volume is restored replace eeprom and resolder q1903. 2. Soldered R1916 to closest ground. Althought this tip works, the eeprom should be changed to properly correct this problem. Enter the service menu and write down all the values if you don't have a chipperchecker. If you have the chipper checker software, you can reinitialize it (the eeprom that is).

RCA
Chassis:ctc177
Storm Damage
Replaced micro U3101 (217320), Q4105 (223704) reg CR4004 (ECG125) U4101 (215530) and 5a fuse.

GE
26gt506
RCA CTC177aa3 tuning
Set turns on, good picture and sound. 4.5 min later the set mis-tunes.
Fix, SMD U7401 215533
Comments:In upper band, 51+, tuned channel is osd indication plus four, that is 58 is on 54. Lower channels, off by two. Channels 2 and 3 can not be tuned.

GE
31gt658
CTC177
cable channels 14 and up inoperative.
Replace C4130 10 mfd. 100 volt

RCA
Model: G26685WK
Chassis: CTC177AE
No VHF Channel; No UHF Hi-Band Channels
U7301(215532 CXA1594L); C4130 (10uf/ 160v)
Comments:U7301 Mxr/Osc was killing VHF, C4130 had opened, dropping 33v tuner voltage to 20v, killing UHF hi-band.

GE
Chassis:ctc177af3
dead (horz width fluctuated then went dead)
sodder L401 near HOT (repair grounds in tuner too)


GE
Chassis:ctc177
Very faint snowy picture on some channels all snow on others.
q7403, q7404 = nte2406 nte2407 and ic u7401
Comments:found surface mounts q7403, q7404 shorted replaced still snowy then replaced ic u7401 rca #215533 which restored normal operation. Better use chip quick to replace ic u7401 or damage to traces can occur while removing old ic.

GE
Model:25GT506
Chassis:CTC177AA2
no tuning voltage--band switch ok
Y7401

RCA
Model:
Chassis:ctc177
no video
No hor feedback pulse to IC1001,or loss of 7.5v to IC1001
Comments:check sandcastle pulse which needs hor and vert feedback.

RCA
G26685WK
CTC177AE
VERY POOR PICTURE ESP. HIGH BAND
U7301 PART #215532
Comments customer use this set with roof top antenna... [fringe area] getting low band fairly well, but high band very poor... good picture if uses vcr and a/v cables... at shop found that dss satellite signal on ch 3 gave clear picture, but video looked some what overloaded... [AGC] research the inter net and found similiar problem and suggested changing U7301 [215532] did so and proper operation restored... my thanks to original tipster

RCA
Chassis:ctc177
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
Model:F31671SE
Chassis:CTC177CD
Snapped once taking out H.O.Transistor.
2SD1885 and flyback 244007

GE
31GT657
CTC177CC
Video Bleeding, Smear
U1001 - LA7610 - 215524
Comments: Looks like a bad CRT

RCA
25GT510
CTC-177AA3
Dead
Change leaky CR4104 5.6v zener diode and leaky Q4103.
Comments:Pins 5 and 6 of Eeprom U3201 and pins 19 and 20 of U3101 will be low, and +5v standby 2, transistor voltages will be low.

RCA TV
25GT510/CTC-177AA3.
Dead.
Change leaky CR4104 5.6v zener diode and leaky Q4103.
Comments: Pins 5 and 6 of Eeprom U3201 and pins 19 and 20 of U3101 will be low, and +5v standby 2, transistor voltages will be low.

RCA
F27255BC / CTC177AF3
Won't turn on. No pict/snd. No click. Customer stated symptom appeared after power transformer failure.
Def/shorted parts; F4001, C4007, C4105, U4101.

RCA
CTC177
dead
R4104 open 1.5 meg in power supply

GE
25GT506
CTC177AA3
Won't turn on. Dead, no pict/snd. No click. Ant input connector loose.
Def U4101 (STK730-130); U3201 (227715) eeprom.
Comments: Chipper Checker passed eeprom as being OK, but wasn't. Voltage on pins 5 & 6 would drop to apx 2.5v, in stand-by. New eeprom completed repair.

  • RCA CTC176Anonymous, Wed Dec 24 12:52pm
    RCA CTC176 INTERMITTENT TUNER OPERATION CHECK/REPLACE Y7401 (P/N# 182839) RCA N/A CTC176 NO VERTICAL AND NO AUDIO CHECK/REPLACE CR4704 (P/N# 207878) RCA N/A CTC176 DEAD SET CHECK/REPLACE R4104 (1.5m... more
    • RCA CTC-177 — Anonymous, Wed Dec 24 12:58pm
      • CTC178-179Anonymous, Thu Nov 11 2:23pm
        RCA PS36130 CTC179 Unit will not power up. Unit will cycle on and off 3 times then shut off. Secondaries will not go up. Found a shorted CR4115 causing the supply to go into over current shutdown.... more
      • RCA CTC-185Anonymous, Wed Dec 24 1:01pm
        RCA Model:F19207BC Chassis:CTC 185A cannot access menu from front pannel Parental control on Comments:using a universal remote select the channel menu ( #4 ) and turn off parental control ( #4 ) RCA... more
        • RCA CTC-187Anonymous, Wed Dec 24 1:06pm
          RCA N/A CTC187 SHUTS OFF INTERMITTENTLY CHECK/REPLACE ON FLYBACK PINS, ESPECIALLY 1,2,8,10 RCA N/A CTC187 WILL NOT TUNE ANY CHANNELS - ONLY HAS SNOW CHECK/REPLACE Y7401 (P/N# 182839) RCA N/A CTC187... more
          • RCA CTC-187JOE M., Tue Jan 2 1:42pm
            RCA CTC-187 CTC187 PICTURE BOWED ON THE SIDES (PINCUSION) If you can't see bloated caps at C4407 or 4403 then you may not even need parts. Usually on 187's the pincushion problem is normally a high... more
          • Re: RCA CTC-195 & PTK-195Anonymous, Wed Dec 24 1:08pm
            Make:RCA Model:P52810LVG2 Chassis:PTK195AB Problem:Convergence Problem, no digicon communication between main board and convergence board, bank of heat sinks on convergence board, stone cold... more
            • ctc195 bowed pixLonnie, Wed Jan 27 12:03am
              Hi Replaced flyback on chassis three days lated pix started bowing from top and sides pincusion prob any suggestions
            • Re: RCA CTC-195 &CTC-197Anonymous, Wed Dec 24 1:16pm
              RCA CTC197 INTERMITTENT SHUTDOWN REMOVE C13141,CHANGE R13510 TO 10k (P/N# 195937),ADD C13143 .01uF (P/N# 215555) TO PIN#51 (U13101) AND TO JC12142 PAD RCA CTC197 WHEN THE AUDIO BUTTON IS PRESSED ON... more
              • Re: RCA CTC-195 &CTC-197Anonymous, Fri Apr 7 8:54am
                a CTC197ce2 chassis clicks three times then stops Tryed L401 cleaning same thing noticed rt4305 burned.. Ned value and if fly is bad???
                • ctc197curt., Sat Apr 8 9:33am
                  On your ctc197 the value of the r14305 is 3.6k and most likely the flyback is shorted.
              • RCA CTC197CNL A Electronics Depot, Mon Oct 11 9:10am
                Model F32685 TV had no vertical delection. Check for bad solder connections at the flyback transformer.
              • 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
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                  • 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 MIXEDAnonymous, Wed Dec 24 1:38pm
                  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... more
                  • GE 13TVR62 tv/vcr comboSlick, Mon Oct 11 9:13am
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                    • 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
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