| Make | Model | Problem | Solution | Date |
| | | |
| Found: 2209
|
| Akai | SN71B6 | Blank raster at sw on sound ok - pic slowly comes | CRT low emission - reactivated | 14-09-04 |
| Akai | SN71B6 | No raster, sound ok - if A1 advanced strange rainbow effect | Replace TDA8172 IC NS10 low volts pin 2 & RK53 3R3 | 14-09-04 |
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| Akai | SN71B6 TV2851 | No pic - sound/EHT present - Field blanked | RK53 3R fusible pin 3 LOPTx | 14-09-04 |
| 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 |
| 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 | CTV4851 11AK19B-1 | Dead with 0nly 300v pri HT | Opto coupler faulty - though more faults may be present (esp if it went off in a thunderstorm) | 14-09-04 |
| Alba | VTV19 Combi | No pic - sound ok | C480 10µ near line dr tr | 14-09-04 |
| Amstrad | CTV2020/2028 Bush 2866 | Searches but finds no sigs | R124 15K 2W O/C located
behind the PSU in the centre nearest the front controls | 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 |
| Barlows | CB672 | N/S pincushion error | chech 4 trs on pincush pcb & C6,10,12 and L1 (24R in cct) | 14-09-04 |
| Beko | 6BZ190-11 | Dead - psu burn up | IC901 MC44603, T901 FET P3NA60 use 2SK2545, R911 1k | 14-09-04 |
| BPL | BPL9402 | Dead | Q432 BU508DF s/c - check C435 4700pF 2kv for o/c & R552 91k for o/c & drive wfm from IC701 | 14-09-04 |
| Bush | 11AK19-B1 | Field collapse | After trying new chip TDA8351 which made no diff, fault traced to D606 BA157 which checked ok out of cct | 14-09-04 |
| Bush | BC6004 | Blowing line o/p transistor | D687 ( SKE4F1/10 ) , D688 ( BY223 ) , C688 ( 0.0013uf ) , R941 ( 100k ) | 14-09-04 |
| Bush | BC6004 | Dead | BU326A T686 s/c, when replaced has slow tripping - tripler faulty | 14-09-04 |
| Bush | BC6004 | Tripping | D687 ( SKE4F1 ) Faulty Blows Up C835/6 If Left Tripping . | 14-09-04 |
| Bush | BC6004 | Tripping - as Picture Comes On | Check/Replace D956 ( sync/control PCB ) | 14-09-04 |
| Bush | BC6004 | Tripping - as Picture Comes On | Adjust P943 For 122v at R886. | 14-09-04 |
| Bush | BC6004 | Tripping - intermittently. | R943 ( 330k ) gone high. | 14-09-04 |
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| Bush | BC6111 | Tuning drift. | Check/replace 9Z1 | 14-09-04 |
| Bush | BC6318 | No or intermittent sound. | Dry joint from 1Z7. | 14-09-04 |
| Bush | BC6338 | Channel selector stuck on prog. | ET6016 , 1R1106. | 14-09-04 |
| Bush | BC6338 | Tuning - no channel change. | ET6016 &/or 1R1106 | 14-09-04 |
| Bush | BC6348 | Dead | 4D14 | 14-09-04 |
| Bush | BM6514 Ranger 2 | Hum bar & picture distorted. | 2x Diodes on right hand side from back ( BY133 type ) | 14-09-04 |
| Bush | BTV14 | Completely dead | Q603 BC548C in psu | 14-09-04 |
| Bush | BTV14 | Tripping | Dis pin 2 on conn on vcr panel from psu, if stops replace IC661 5v reg | 14-09-04 |