CP775 Repair Tips




Search: CP775
Results 30
MakeModel Ch.SymptomProblem SolutionSolutionBy:
Daewoo CP775
Dead - faint ticking from PSULOPTx faulty - check Q401 D18809a4 aka 2SD1880 for s/c and D406 for s/c
Goodmans285NS Daewoo CP775
Dead - faint tick from psuQ401 2SD1880 LOPTr s/c, D406 BYW95C s/c - both caused by LOPTx faulty (HR7927)
Goodmans285NS CP775
Vol at max - won't adj valueI702 124LC08B EEPROM
Goodmans285NS CP775
Txt subtitles/mix darkens picPoor set up - select P888 or 120 on ITV & use RGB fastext buttons to select contrast etc. Adj in Txt - does not affect pic
Goodmans285NS CP775
Smearing B, R or GR910, 911 or 912 100k on crt base
Goodmans285NS CP775
No soundDry joint 15v supply pin on SMPS Tx
Goodmans285NS CP775
Line foldover with ragged vertsC416 680pF 2Kv o/c
Goodmans285NS CP775
Int sound & pic - no tuningQ711 KTC3202Y leaky
Goodmans285NS CP775
Insufficient height aft pcb or crt replacementScan coil impedance different - change R333 from 3k to 2k & R919 from 3R3 to 0R68
Goodmans285NS CP775
Field distorted or collapseTDA8451 & TDA8375
Goodmans285NS CP775
Field collapseC305 & C403 470µ & I301 TDA8351
Goodmans285NS CP775
Excess width & no E-WC301 0.022µ s/c
Goodmans285NS CP775
E/W faultyR406 4R7, D403 BY228 & Q404 KTC3198Y
Goodmans285NS CP775
E/W dist with lack of heightQ403 2SB546K & Q404 C3198Y
Goodmans285NS CP775
Dead with mains fuse FS8014A A/S blownD803/804 & C803
Goodmans285NS CP775
Dead - STRR5707 reg chip blownReplace reg chip, F801 4A, R804 0R33 2w, R807 7k5 & R806 100R - caused by C807 1nF 2kv blue cap that had split & leaky - & check print condition
Goodmans285NS CP775
Dead - no 20v to line dr trC401 10µ 63v
Goodmans285NS CP775
Col fault - no B-Y - ok in Txt & monoCC516 sm to pin 14 IC503 not soldered properly
Goodmans285NS CP775
Col bars on screen - no chroma pllRC515 100k sm
Goodmans285NS CP775
Cabinet vibration at certain freqsSpeaker grilles loose - not obvious - refix