| Make | Model | Problem | Solution | Date |
| | | |
| Found: 125
|
| Akura | Baby 10 | Brightness - no control | D409 o/c | 14-09-04 |
| Akura | Baby 10 | Dead - list of psu 2 faults | Fault 1: Dry joints on IC402, also check 12V socket.
Fault 2: Line output transistor is dry jointed (emitter).
Fault 3: Check if fuse holder 5AT is loose.
Fault 4: Replace D410 in line stage with two RGP30 in parallel.
Fault 5: Check regulator block for dry joints.
Fault 6: Check D410 (FR604) in the line output stage. | 14-09-04 |
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|
| Akura | Baby 10 | Dead - list of psu faults | Fault 1: Check output of regulator IC402. S/C in DC jack may blow the 5A/T fuse. Note: IC402 can cause other faults, such as oversized picture with bent verticals.
Fault 2: Check L110 for dry joint.
Fault 3: [No 12V at regulator]. Check R402 (1R/0.5W) for O/C.
Fault 4: Check line drive transformer (TX EM103) for dry joints.
Fault 5: Check print between output and destination of (potted) regulator for O/C.
Fault 6: Check line output transistor for broken print.
Fault 7: Check fuse F402 and diode D402, damage due to incorrect connection of battery.
Fault 8: Replace IC402. Check EEprom chip IC601 (MN1220).
Fault 9: Check regulator IC401 (L7812).
Fault 10: Check the DC input sockets for high resistance.
Fault 11: [5A fuse blown]. Check D412 FR155 diode for S/C a BY299 will do.
Fault 12: [Regulator OK]. Check line drive transformer for dry joints.
Fault 13: Check mains transformer for O/C.
Fault 14: [630mA fuse by switch O/C]. Check bridge rectifier for S/C. Use 1N5401 as replacement.
Fault 15: Check IC402, F401 (630mA) fuse and D403, D405 in the bridge rectifier circuit.
Fault 16: [F401 blown]. Check D404.
Fault 17: [No PSU start up]. Check resistors R301 (330K) and R302 (330K).
Fault 18: Check 12V DC-IN socket. | 14-09-04 |
| Akura | CX10 (Baby 10) | Int dead | Dry joints inside discrete type reg module | 14-09-04 |
| Alba | Ssangyong ETC. C | DEAD ZD401 12v ZENER SC R414 12R 2W OC LOP TR SC | CHECK HT SHOULD BE 114v CHECK ALL POWER SUPPLY CAPACITORS , ZENERS AND SOLDERING | 14-09-04 |
| B & O | Beovision 8802 Type 7001 | Blank raster, no sound, OSD OK | R1 1,5Ohm o/c, TR1-TR2 BC 338-25 o/c, D1 13V Zener s/c
| 14-09-04 |
| B & O | Hybrid | Teletext - interference. | 4 Page lay out. | 14-09-04 |
| Bush | Ssangyong etc. | DEAD ZD401 12v ZENER SC R414 12R 2W OC LOP TR SC | CHECK HT SHOULD BE 114v CHECK ALL POWER SUPPLY CAPACITORS , ZENERS AND SOLDERING | 14-09-04 |
| Ferguson | ICC9 GY12SA | Removing back | Done via front which is removable | 14-09-04 |
| Finlux | 1000 (early) | Int col with TDA3652A chip | ref osc trimmer Ct12 6-30pf noisy. To set up link pins 24/25 & 1/5 of ic & adj Ct12 for stationary col | 14-09-04 |
| Finlux | 1000 early | No pic - crt htrs alight | Cb 2µ2 35v o/c (near col dec chip) | 14-09-04 |
| Finlux | 1000 srs EARLY | INT COLOUR , SEEMS LIKE DRY JOINTS | Ct12 REF OSC TRIMMER NOISY . LINK PINS 25 , 26 AND 1 , 5 TO SETUP | 14-09-04 |
| GEC | Hybrid | No colour when correctly tuned in. | C341 , TR327 , C319. | 14-09-04 |
| Genexia | Baby 10 | Hum bar. | Try slight adj to AGC to tuner , or Reg chip faulty. | 14-09-04 |
| Goldstar | CY14A86 | Shuts down aft 30 mins | Sw mode Trfmr had cracked core causing drive chip to overheat | 14-09-04 |
| Goldstar | KY14V30 | Dead - both TV & VCR sects | STR6707 power chip s/c; ZD802 6.8v zener leaky | 14-09-04 |
| Goodmans | 1432 early | Poor interlace effect when VCR played | C117 2µ2 50v in IF can | 14-09-04 |
| Granada | C41HS4 Sanyo E4A/B | Field reduced or collapse with blank raster | 12v reg L78M12 | 14-09-04 |
| Hinari | HIT10R Baby10 | Fuse o/c & Diode BY299 s/c. | Change C345 ( 1000uf 35v ) at back | 14-09-04 |
| Hitachi | C2125T 11AK19Y4 | St/by only | Handset was faulty even though it gave an o/p | 14-09-04 |
| Hitachi | C2574TNY | Bouncing pic when heated | R952 68k hi res | 14-09-04 |
| Hitachi | C2574TNY | Humming from chassis | C901 dry joints causing L901 to vibrate | 14-09-04 |
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| Hitachi | C2874TNY | Reverts to st/by | Check IC4451 TDA7253M audio chip & R952 68k in HT preset network | 14-09-04 |
| Hypson | HY37 | Sound conv reqd from 5.5 to 6Mhz | Replace CF1 (SFE 5.5) with an SFE 6.0 filter. | 14-09-04 |
| JVC | BYX | Int tuner drift & patterning | Dry joints IF module | 14-09-04 |
| JVC | BYX chassis | Loss of some chans | IF module SBY-F004A proved to be heat sensitive - retune T102 V C Osc coil | 14-09-04 |
| JVC | BYX chassis | No memorise chans or settings | IC001 MN1226S, C106, C107 on station select module | 14-09-04 |
| JVC | C-140EKY | Back line across raster | C553 2200µ 35v | 14-09-04 |
| JVC | C-140EKY | field collapse | R552 1R8 2W | 14-09-04 |
| JVC | C140EKY | Dead - st/by only | Dry joints emitter of Q924 in psu | 14-09-04 |