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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: 10
Alba
CT
V70
1
No sound/pic just blank screen with swirling lines
C917 100µ 160v
14-09-04
Alba
Onwa CT
V70
1
No sound/pic just pattern on screen
Video reaching Txt pcb but not leaving it. 5v supply missing - check HT smoothing cap 100µ 160v
14-09-04
Fidelity
WST
V70
28N 11AK19-8A
Width
C630 0.27pF dry joints, Q603 BUK444 leaky, E-W coil shorted turns (looked ok)
14-09-04
Fidelity
WST
V70
28NF
Excess width & E-W bowing, removing E-W tr Q683 makes no diff
L604 s/c (res should be approx 3R) self rewound 293turns
14-09-04
Fidelity
WST
V70
28NF
Low width & R629 2R2 fusible o/c
C630 270nF 250v (no physical sign of being faulty)
14-09-04
Fidelity
WST
V70
28NF
Narrow raster
C630 o/c . the value is 270nF 250V for 16:9 sets, 430nF 250V for 4:3 sets
14-09-04
Fidelity
WST
V70
28NF AK19
Lack of width & striation on lh side
C630 430nf 250v o/c in lop E/W mod area
14-09-04
Orion
T
V70
0BR CTN-AA
Tripping with LED flashing in time
Fit dummy load to HT supply - removing pin 1 LOPTX gave 101v - LOPTx u/s - grey type Part Number OR312813820411available from CPC @?21 +vat
14-09-04
Orion
T
V70
5R
Dead
7525 STP3NA60PF s/c, 6502-6505 1N5061 s/c, 7514 TDA4605 u/s, 2A fuse o/c, 3523 33R 1/3w o/c, 7445 BUT11AF s/c
14-09-04
Orion
T
V70
5R
Dead with faint ticking
LOPTr BUT11AF s/c
14-09-04
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