Make | Model | Problem | Solution | Date |
| | | |
Found: 39
|
Alba | CTV840 | dead | chopper tr BU508AT s/c, R902 2R2 safety res o/c, C909, 910 47µ 50v HT now steady at 111v | 14-09-04 |
Alba | CTV840 | Field collapse | C404 22nf int s/c req replacement of field chip LA8730 & supply diode | 14-09-04 |
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Alba | CTV840 | No tuning | R125 47R o/c, C127 470µ 16v s/c | 14-09-04 |
Alba | CTV840 | No tuning/store or analogue adjust apart from Vol | -30v supply low pin 9 IC601 - C919 330µ 50v esr >100, also check ZD601 30v zener | 14-09-04 |
Alba | CTV840 Onwa | Black vert bars with background pic | C420 22µ 160v o/c | 14-09-04 |
Alba | CTV840 Onwa | No tuning although the set displayed tuning drive | R125 ( 47R ) was opencircuit because C127 ( 470uF 16V ) was short circuit .These components form a filter in the 9.25V supply | 14-09-04 |
Alba | CTV841 | dead | chopper tr BU508AT s/c, R902 2R2 safety res o/c, C909, 911 47µ 50v HT now steady at 111v | 14-09-04 |
Alba | CTV841 | Dead with 4R7 surge limiter o/c | Check 4 x 4n7 ceramic caps in mains bridge rect for s/c | 14-09-04 |
Alba | CTV841 | Only tunes over lower bands | R646 10k 2w o/c (in front of loptx) | 14-09-04 |
Alba | CTV841 Onwa | St/by only - relay chatters when sw held in | D401 | 14-09-04 |
Alba | CTV841 Onwa | No pic - appears bright when A1 advanced | R430 180k in beam lim o/c | 14-09-04 |
Alba | CTV842 | Dead - no line drive | Line dr tfmr o/c due to glue attack - managed to repair | 14-09-04 |
Alba | CTV842 | No colour | Cap 0µ47 connected to pin 12 of TA7698AP decoder/tb chip | 14-09-04 |
Alba | CTV842 | No tuning | R108 10k o/c | 14-09-04 |
Bush | 2850NTX TV8 | Dead apart from led flicker at sw on | C203 47µ 250v - checked ok out of cct | 14-09-04 |
Bush | CTV855 | Dead - int. | Dry joints on line coil & LOPTX. | 14-09-04 |
Bush | ITV8401 11AK20S | St/by only - r/c not operating tv | Initialise remote by pressing arrow L, arrow R & arrow Down as well as "1" at the same time | 14-09-04 |
Bush | TV8 | Dead aft smoking | PCB track between C307 & scan coil plug burnt. BUH515D loptr T308 s/c; TDA8170 fop chip IC401 duff; R408 0R22 in supply to it o/c | 14-09-04 |
Triumph | CTV8000 | Dead. | Check for hairline crack on bottom PCB. | 14-09-04 |
Triumph | CTV8205 | No field scan. | R709 ( 22k ) in series with field hold control o/c. | 14-09-04 |
Triumph | CTV8208 | Frame jitter. | R427 ( 220k ) replace with 180k | 14-09-04 |
Triumph | CTV8209 | Bright white raster | C63 47pf o/c | 14-09-04 |
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Triumph | CTV8209 | Bright white raster. | C62 ( 47pf ) o/c. | 14-09-04 |
Triumph | CTV8209 | Dead. | IC TDA4600 chopper control IC , 2.2ohm surge limiter. | 14-09-04 |
Triumph | CTV8209 | Int going into standby. | Drys on line driver TX. | 14-09-04 |
Triumph | CTV8209 | Line collapse. | C121 o/c. | 14-09-04 |
Triumph | CTV8209 | No red. | TR11 ( BF869 ) o/c. | 14-09-04 |
Triumph | CTV8209 | Overbright raster with flyback lines. | C120 o/c. | 14-09-04 |
Triumph | CTV8210 | Dead - 1A fuse o/c | D507 s/c; STR451 s/c; HT decoupling cap 100µ 160v faulty | 14-09-04 |
Triumph | CTV8210 | Dead - intermittent. | Check for breaks in print on CRT base. | 14-09-04 |