Make | Model | Problem | Solution | Date |
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Found: 26
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Bush | 2871NTX 11AK19-P4 | No pic or OSD - sound present | TDA6108JF on the CRT base | 14-09-04 |
Bush | WS6671 11AK19P4 | Narrow pic | R629(2R7 1/3 watt fusible) plus DJ on C630. | 14-09-04 |
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Bush | WS6671 11AK19P4 | Narrow pic | Dry joint/ o/c C630 560n; R629 27R? Safety o/c, L604 reads 3R (correct), Q603 PHF9NQ20T replaced - used BUK444 200A in lieu | 14-09-04 |
Bush | WS6671 11AK19P4 | Width excessive | Q603 (9NQ20T or BUK444-200 or MTP6N60E) | 14-09-04 |
Bush | WS6673 11AK19P5 | Dead - check for dry joints | Also replaced LOPTr which then produced 1" line scan - D622 BY228 leaky & R629 2R7 o/c. There's a mod for psu (11DYC19P) to fit heatsink for diode that burns up | 14-09-04 |
Bush | WS6673 11AK19P5 | Dead - D823 blown (not shown on cct) | When replaced still faulty, IC802 MC44604P chopper chip u/s - also check FET chopper Tr | 14-09-04 |
Bush | WS7671 11AK19P4 | Dead - off with a bang | IC802 MC44604P, IC801 CQY80NG CNX82 OR SEME TYPE OPT403 OPTOCOUPLER, Q802 2SK2545 MTP6N60E, R822 22K 3W, D807 RL207 BA159, D826 BA159, D827 BA159, D824 MR852 BYW98/200V | 14-09-04 |
Goodmans | GTV69W3BLU4 11AK19pro | R629 value | 2R7 in 28" 4:3; 27R in 28" widescreen; 44R in 32" widescreen | 14-09-04 |
Hitachi | C2842N 11AK19PP | Dead - D823 blown (not shown on cct) | When replaced still faulty, IC802 MC44604P chopper chip u/s - also check FET chopper Tr | 14-09-04 |
JMB | JMB66W 11AK19Pro | Dead - LED lit green but no line drive | pin 40 TDA8844 s/c. There is an internal diode between pin 40 & ground that goes leaky, replace the IC or burn diode o/c by applying 5V between pin 40 & ground from ext psu | 14-09-04 |
Mitsubishi | BDS28WS 11AK19Pro | Int shuts down to st/by with LED dimming - usually at start up | Focus spark gap arcing - replaced CRT skt 30001855 ?1.39 from SEME | 14-09-04 |
Mitsubishi | BDS28WS11AK19PRO | Dead | Q605 BU2508AF, C630 390NF 250V, C626 12NF 2000V, L604 E/W Coil, TR601 Line drive transformer, L604 15mH Coil, R629 27R, D807 BA159, D605 BA159, D606 BA159, C835 1nF 1000V | 14-09-04 |
Mitsubishi | BDS28WS11AK19PRO | Sw to st/by aft 2 mins - G LED flasheswhen trying to come out of st/by | D505 2v4 zener sm conn to pin 33 IC501 leaky | 14-09-04 |
Mitsubishi | BDS28WS11AK19PRO | Won't come out of st/by when sw to st/by aft operating for more than 5 mins | Sw mode Tr replaced | 14-09-04 |
Mitsubishi | Black Diamond 11AK19Pro | Dead with D829 UF5407 HT rect s/c | D807 BA159 s/c, chopper Tr s/c 2SK2545 - used 2SK1507 in lieu, R817 2R2 5w o/c | 14-09-04 |
Mitsubishi | Black Diamond 11AK19Pro | No pic then E/W faulty | C630 dry jointed, when resoldered had E/W fault - Q603 leaky fitted BUK457-600B in lieu also L604 faulty | 14-09-04 |
SEG | 11AK19Pro3 | Dead | D825 & D824 BA159 burnt & check for dry joints | 14-09-04 |
SEG | 11AK19Pro3 | Pic twitching/cogging & int width | LOPTx | 14-09-04 |
SEG | CT7951 G3 11AK19P | Dead | R817 5w 2R2 o/c, Q802 2SK2545 chopper Tr s/c, D805 BA159 & UF5407 diode | 14-09-04 |
SEG | CT7951GB 11AK19Pro | No line drive - LED turns from red to G OK at sw on | Apply 5v from bench psu to pin 40 of jungle ic IC401 (TDA8844) may result in a complete cure when next switched on. Internal diode on pin 40 goes leaky | 14-09-04 |
Various | 11AK19 Pro | Lack of width & E/W dist | 27 Ohm resistor in the E-W stage burning, C630 39nf 250v faulty tho measured ok | 14-09-04 |
Various | 11AK19P4 | E/W corr faulty - no o/p pin 45 TDA8844 | Apply 5v to pin 45 & blow leaky diode | 14-09-04 |
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Various | 11AK19Pro | Service mode access | Select install menu then key in 4,7,2 & 5 via RCU To navigate use up/down keys on RCU & press "OK" To select, use up/down keys & select "OK" Select standby to store & exit | 14-09-04 |
Watson | FA2801TS 11AK19Pro | Dead - psu pcb tracks o/c due to heat | D625 (used BY127) | 14-09-04 |
Watson | FA2801TS 11AK19Pro | Dead with psu blown | IC802 MC44604, D824 RL207 USED BY299, D824/5/6/7 ALL BA159's, Q802 FET P6NC60FB used BUZ90 in lieu, D823 IN1418, R850 180K (Read ok but changed as a precaution.), R817 2.2R 5W, R814 47R, R819 0.22R, C848 220MFD (Read ok but changed as a precaution.) | 14-09-04 |
Watson | FA2801TS 11AK19Pro | Narrow pic | Dry joints C630 560nf & R629 27R o/c & dry joints E/W FET & 2w res burnt up (fitted 330R). The whole pcb reqd repair to tracks due to overheating | 14-09-04 |