| Make | Model | Problem | Solution | Date |
| | | |
| Found: 30
|
| Bush | 2866NTX | Blank raster only when tuning | R124 15k 1w o/c | 14-09-04 |
| Bush | 2866NTX | Dead | PSU elec caps, BUZ77, hi value r's | 14-09-04 |
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| Bush | 2866NTX | Dead | LOPTx, D577 s/c, R711 on e/w (4R7) | 14-09-04 |
| Bush | 2866NTX | Dead | LOPTr Q602, C620 470nF 400v, C698 1000pF 2Kv, D105 BYD33J, I576 TDAFOP chip & R575 4k7 hi res | 14-09-04 |
| Bush | 2866NTX | Dead | R103 47k 1w in PSU o/c | 14-09-04 |
| Bush | 2866NTX | Dead - chopper tr s/c | R102 68k 2w & replace C106 33nF 630v, and C107 1Nf 2kv. As
part of the fault, R101 2r2 5w was open circuit, For good measure, the following should also replaced c109 1uF 50v, C112 47uF, I101 TDA4605-3,
R108 270k 2w, R109 680k 2w. | 14-09-04 |
| Bush | 2866NTX | Dead - LOPTr BU2508DF s/c | Line Drive Transistor (Q580) - Type "F422" - Fitted 2SC2271 was the cause even tho' checked ok | 14-09-04 |
| Bush | 2866NTX | Dead - LOPTr Q501 BU2508DF s/c | R604 3R3 2w on E/W panel overheating when LOPTr replaced - C596 0µ011 o/c | 14-09-04 |
| Bush | 2866NTX | Dead - mains fuse blown | chopper transistor (2SK 2545), LOPTr(BU2508DF), E-W driver
(TDA8145), R618 (15k) R711 (3R3 0.5W fusible), C600 (1uf 250V electrolytic) all caused by C620 (0.47uf 250V) S correction cap going open circuit | 14-09-04 |
| Bush | 2866NTX | Dead no st/by led | R102 68k 1W; R109 680k 0.5W o/c in psu | 14-09-04 |
| Bush | 2866NTX | Dead with ticking sound | BY228 diode in E/W mod s/c & Q579 BD237 on subpanel next to LOPTx | 14-09-04 |
| Bush | 2866NTX | E/W faulty - R711 burnt out or overheating | R711 3R3 o/c, TDA8145 & L671 10mH s/c | 14-09-04 |
| Bush | 2866NTX | Int goes off aft 20 mins | Line dr trfmr int o/c - CHS Code ALB778 (same as Matsui 2196) | 14-09-04 |
| Bush | 2866NTX | Int sound & sw off | Dry joints pins of connector on sound dec panel | 14-09-04 |
| Bush | 2866NTX | No E-W correction after blow up | E/W ic & 4R7 safety res | 14-09-04 |
| Bush | 2866NTX | No pic - sound ok | C620 470nF o/c | 14-09-04 |
| Bush | 2866NTX | No sigs or tuning supply | R124 15k 1w o/c | 14-09-04 |
| Bush | 2866NTX | No sound/pic - noise & OSD only | No tuning volts - R124 15k o/c (Front of main pcb) | 14-09-04 |
| Bush | 2866NTX | No sound/piv - HT correct but EHT only 8kv | C620 0µ47 250v tuning cap in LOP stage o/c | 14-09-04 |
| Bush | 2866NTX | No tuning volts | R129 15k 2w back of psu o/c feed to D114 | 14-09-04 |
| Bush | 2866NTX | Pic jumps int/no or out of sync txt | No clock - SDA5243-5 EQ5243 &/or SAA5231 on txt/nicam pcb | 14-09-04 |
| Bush | 2866NTX | Resonating noise | Chopper trfmr | 14-09-04 |
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| Bush | 2866NTX | Sound absent | 5v supply to NICAM board low at 3v. Q581 BC537 faulty tho checked ok - used BC639 in lieu | 14-09-04 |
| Bush | 2866NTX | St/by only | Replace the micro type CTV352/V1.4 (Amstrad pt no AM045101070211 ) | 14-09-04 |
| Bush | 2866NTX | Tripping | Lop tr s/c BUH515D - used S2055 also e-w mod diode - caused by dry joints hi volts tuning cap under pcb (under sticky pad) | 14-09-04 |
| Bush | 2866NTX SM2 | Txt missing | Short pin 20 of IC301 the micro to earth then switch on. Service menu should appear
Service- Telra V2.0; OP byte 1 OX OB; OP byte2 OX BO Init EEPROM.
Use P+/P- tp select the line to adjust and V+/V- to adjust.Bytes 1 and two must be as shown above.
To initialise the EEprom select the line and press V+/V- Correct handset reqd. | 14-09-04 |
| Bush | 2866NTX/SM2 | Blank white raster - sound ok | Jungle chip TDA8363AN3 | 14-09-04 |
| Bush | 2866NTX/SM2 | Line tearing when heated | C597 (22nF 400V) completely open circuit. | 14-09-04 |
| Bush | 2866NTX/SM2 | To access tuning mode | press and hold [MENU] button for at least 5 sec.
Then press and hold the white button for at least 5 sec to auto tune all the channels. Then use the green button to re-arrange the stored channels. | 14-09-04 |
| Bush | 2866NTX/SM2 | Won't store or loses chan store | This was cured by replacing memory 24C08 | 14-09-04 |