rca Repair Tips




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MakeModel Ch.SymptomProblem SolutionSolutionBy:
Rca CTC166/167
Audio, no videoChange Capacitors C4501 and C4502, in the vertical section
Rca Various
After presing play picture appears but looks like in pause modeClean and lubricate the capstan flywheel
Rca VJM2022T CTC 121D
Will not shut offSCR 100 leaky
Rca F35670MB CTC187CN3
Dead. F4001 5 amp fuse openCheck U4101 STK730-150 Part no. 223948, Check CR4106 for short, Check Q4401 for short, replace all shorted or open parts, Check the two main filter caps on the secondary off of SMPS, replace vented caps, Replace 10uf 200v cap off of reg.
Rca F35670MB CTC187CN3
Common problem bulletin:Resolder ALL ground connections in and around, and under the tuner shields, solves most problems, prevents big problems as in dead EEPROM or CPU
RCA CTC177AF3
Overloaded picture, AGC not adjustableFound IC7301 CXA1594 bad. Replace ic and align tuner parameters
Rca F27442 CTC203AD5
No power, all standby voltages okReplace the guide plus. is located to the side of the tuner
Rca F19220BK CTC175L2
Erratic screen / intermittent, eprom causes multiple possible symptoms, clicks on/off, tuner, you name it !Mass defect caused by bad solder in tuner, once fixed will probably last forever. Resolder tuner wrap-around groundings and all pins under tuner shield bottom, if no success suspect a corrupted eprom
Rca F27442 CTC203AD5
No picture and sound, only a high pitch sound at switch onRemove horizontal transistor and measure the resistance across any two pins. This value should be no less than 200ohms
RCARBA2150 RBA2020
TX 91
TROCA DE FLY BACK – CHASSIS TX 91PROCEDIMENTO - Nas trocas de fly back é necessário observar os capacitores: Ø CL02 / CL04 / CL18. Quando o Fly Back for LG(154-387B) os valores são: Ø CL02 - 470pF X 2kV Ø CL04 - 4,3nF X 1,6kV Ø CL18 - 470pF X 2kV Quando o Fly Back for Samsung (FCV-2010E10A) os Valores são: Ø CL02 - 220pF X 2kV Ø CL04 - 6nF X 1,6kV Ø CL18 - 220pF X 2Kv
RCARBA2150
TX 91
PERDA DE ÁUDIO OU FORA DE FREQUENCIA1. Troca do CI de Memória, posição U3201, código físico 24C02 ou 24C04, código de estoque 040360404 2. Incluir componentes que não foram inseridos no PCI na montagem são eles: CAPACITOR de 47uF X 25V, de posição CR29, código 231470411 RESISTOR SMD de 4K7, de posição CR29, código 182547232
RCARBA29551 / RBA33694
CTC 184
Tela escura(sem imagem ), mas com som normalPerda de dados na memória.Apertar a tecla "RESET" no controle remoto