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Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair
Make
Model
Problem
Solution
Date
Found: 901
Hitachi
G6P
Bright green raster with flyback lines. When the
A new cbip restored everything to normal.
14-09-04
Hitachi
G6P
Bright white raster - only 20v at RGB colls
ZD301 12v zener on main pcb
14-09-04
Hitachi
G6P
Bright white raster which trips aft 30 secs
R771 o/c & D763 leaky in RGB supply
14-09-04
Hitachi
G6P
Colour - looks a bit pale.
Q856 ( 2SC2271 )
14-09-04
Hitachi
G6P
Colour int goes off
IC501 HA51338SR pin never soldered
14-09-04
Hitachi
G6P
Corrugated verts
C905 & C910 4µ7 50v
14-09-04
Hitachi
G6P
Dark pic with red flaring
Low A1 volts caused by contamination on crt base pcb
14-09-04
Hitachi
G6P
Dead
Q901 or dry joints on heatsink tag for T721
14-09-04
Hitachi
G6P
Dead - low res between base - emitt of Chopper transistor Q901
CP901 control/drive module HM9205 has s/c between pins 5 & 6
14-09-04
Hitachi
G6P
Dead - momentary crack from spkr & led briefly flashes
OK on dummy load - LOPTx faulty
14-09-04
Hitachi
G6P
Dead after dying whine at sw on
dry joints line driver tfmr T721 lands
14-09-04
Hitachi
G6P
DEAD LINE TR READS SC OR LOW B-E ( Q901 )
CP901 HM9205 SC PINS 5 , 6
14-09-04
Hitachi
G6P
Dead with whine
HT low at 50v on dummy load - LOPTx s/c winding
14-09-04
Hitachi
G6P
Dead without whistle
D902 ES1A s/c in psu
14-09-04
Hitachi
G6P
Dead, st/by LED OK, HT at 40v on dummy load
C914 1000µ 16v
14-09-04
Hitachi
G6P
Excess brill with fb lines
ZD301 12v leaky across lum feed to crt panel
14-09-04
Hitachi
G6P
Fail to start up - int
Dry joint R1172 1k between pin 38 of micro & Q1103 coll
14-09-04
Hitachi
G6P
Field cramp
C682 100µ 50v
14-09-04
Hitachi
G6P
Field top foldover
C682 100µ 50v
14-09-04
Hitachi
G6P
GOES STRAIGHT TO STBY
R902 903 82k HIGH OR OC
14-09-04
Hitachi
G6P
Going to standby at switch on.
R902/3 ( 82k ) high.
14-09-04
Hitachi
G6P
GREEN FLASHES ON PICTURE
REPLACE OSD ID
14-09-04
Hitachi
G6P
Green flashing pic with green fingers reaching out from left
Caption/on screen display gen chip IC1104 M50450-023P
14-09-04
Hitachi
G6P
Int cuts out after trying to start
2D752 24v zener
14-09-04
Hitachi
G6P
Int dead no ht
EHT sensing diode ZD752 slight reverse leak - 24v zener
14-09-04
Hitachi
G6P
Int start up
C911 2µ2 50v non pol cap in psu
14-09-04
Hitachi
G6P
INT STICKS IN STBY
R1172 DRY BETWEEN PIN 38 MICRO AND Q1103
14-09-04
Hitachi
G6P
Light horizontal bar at top of pic
CP901 chopper drive chip
14-09-04
Hitachi
G6P
Line jitter at top of screen when using vcr
Change R706 & R716 to 5k6
14-09-04
Hitachi
G6P
No graphics - teletext ok.
Q858/Q857 on CRT base , D1113/D1114 , IC1104.
14-09-04
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