TX91 Repair Tips




Search: TX91
Results 35
MakeModel Ch.SymptomProblem SolutionSolutionBy:
Thomson TX91
PLL will not lock for all frequencies keeps running during program search, on screen display moving / unstableChanged the tuner and the STV8224 also check transistor at location TV02 is ok
Ferguson T49F TX91
Sound at maximum and unadjustableCheck / replace surface mounted transistor TV02 BC858 on the print side of the pcb
ThomsonTX91
No sound aft droppedRA08 22k sm res dislodged;
Ferguson TX91 Thomson 10MH73B 10MG73B
dead on 12V supply (car supply)RD09, RD19 22R 0.5W fusible
Ferguson TX91 Thomson 10MH73B 10MG73B
deadSMD TF21 near LOPTx not soldered in factory
Ferguson TX91
Flashing white lines, pic interference and crackling (OK thro' SCART)TH03 BC858C band sw tr under tuner area of pcb
FergusonTX91 X51FB
St/by onlyBUH515 faulty tho measured ok - gets hot
FergusonTX91 T51N
St/by onlyRP31, 0.22R fusible resistor in 22V U1 supply open circuit.
FergusonTX91 T51N
Int lines on picTH02, TH03, TH04 BC858 SM transistors faulty. Also changed TI31 as this is another known cause, but not in this case.
FergusonTX91 T51F
Unable to access Set Up MenuTr01 BC848B sm - if Coll volts high sus Tr
FergusonTX91 T51F
Red "P" LH side screenToo many buttons pressed on R/C - put in st/by then sw off. Sw back on holding Vol+ & Vol- buttons on TV
FergusonTX91 T51F
Int shut downDry joint pin 1 LOPTx
FergusonTX91 T51F
Flashing pic - like tunerTH02 BC858C sm band sw Tr breaks down
FergusonTX91 T49F
St/by onlyDL05 1S1834 leaky in 13v supply
FergusonTX91 T49F
Height decreases when heatedCF06 100ยต 50v
FergusonTX91 T14T
St/by onlyTDA1771 FOP chip
FergusonTX91
Video crushed & poor lumReplace TV01 BC858B sm - checks ok out of cct
FergusonTX91
Variuos inc -ve pic & no sync & no visTV01 BC858B sm
FergusonTX91
Various int faults - int st/by & out of st/by, height,sound systemTR01 BC848B sm
FergusonTX91
Tuning driftDry joints on tuner earths