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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: 4164
Aiwa
VXT14
5
0K
Field collapse
FR812 3R9 1w fusible o/c - no other fault found
14-09-04
Akai
218
5
Won't go into st/by
CHECK SUPPLY TO PIN 1 OPTOCOUPLER - R572 ( 470ohm )
14-09-04
Akai
CT211
5
UK
Lack of width & burning smell
R824 100R 2W overheating due to dry joint L824
14-09-04
Akai
CT211
5
UK
St/by only
PCA84C640P micro
14-09-04
Akai
CT212
5
Comes on with chirping noise & st/by led on then trips out after 1/2 min
C817 100µ 25v
14-09-04
Akai
CT212
5
Int blank raster with fb lines
OK when con TD203 on txt pcb removed - TZ01 27Mhz Xtal
14-09-04
Akai
CT21
5
9 Onwa
Field faulty - int lines at top etc
C417 220mfd 16v, C423 2200mfd 25v, C435 470mfd 16v
14-09-04
Akai
CT21
5
9UT Onwa
No start up
C910 & C912 47µ
14-09-04
Akai
CT21
5
9VT
Dead
Sw mode tr overheats - replace D901, C405, C910, C912 & C431
14-09-04
Akai
CT21
5
UK
Trips off with chirp & no st/by
C817 100µ o/c
14-09-04
Akai
CT218
5
Reverts to st/by aft few secs from sw on
Pin 19 of micro low - R748 100k pull up res faulty
14-09-04
Akai
CT218
5
-10
St/by only
dry joints psu
14-09-04
Akai
CT2
5
67
St/by only
timing constant capacitor for the standby IC is leaky. The IC is mounted on a heatsink in the middle of the board. C093 is a pair of surface mount capacitors [in parallel] connected between pins 2 and 4 of the IC. Remove these capacitors and replace them with a 220nf.
14-09-04
Akai
CT2
5
79
2 inch gap at rh side
C516 470pf 1.6kv next to lop tx
14-09-04
Akai
CT2
5
79N
Steady, Oversized pic
C513 scan corr cap dry joint
14-09-04
Akai
CT2
5
85
Dead - lop tr s/c
Dry joints & line dr tr T507 BD337-25 int causing arcing noise
14-09-04
Akai
P
5
8SC
Int Blank raster with flyback lines
27Mhz crystal
14-09-04
Akai
SN71B6 TV28
5
1
No pic - sound/EHT present - Field blanked
RK53 3R fusible pin 3 LOPTx
14-09-04
Akai
TV28
5
1TN
St/by only - when sw on no leds lit
RGB IC TEA5101B on crt base s/c
14-09-04
Akai
TV28
5
1TNUK
Rainbow effect
No -12v to FOP chip - CS03 leaky & RK53 overheating
14-09-04
Akai
TV34
5
1 Stereo+2
Dead
VO10
14-09-04
Akashi
14
5
0
Dead
Q811 SF8J41 reg thy s/c - used TAG626 as replacement
14-09-04
Akashi
14
5
0
st/by only
R801 1R5 5w o/c
14-09-04
Akura
CX2
5
Dead
Start up res R804/805 15k (or 18k) 2w
14-09-04
Akura
CX2
5
Dead with low ticking noise.
Q401 ( 2SD1555 ) check for drys on R403 , R407 , R804 & R805.
14-09-04
Akura
CX2
5
Int blank white raster except for 4 bars on RHS.
Resolder IC705 on print side of upright PCB.
14-09-04
Akura
CX2
5
No col
changing the data at addresses 1A and 1B: 1A FF ; 1B 3F cured
14-09-04
Akura
CX2
5
No line drive - standby only.
Q402 ( line drive ) s/c ( c-e )
14-09-04
Akura
CX2
5
OSD has "purity error" effect
cured by resoldering digital video sub board
14-09-04
Akura
CX2
5
Purity error type fault, mono ok
VCO locked to wrong freq setting =249(done via service mode)
14-09-04
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