Make | Model | Problem | Solution | Date |
| | | |
Found: 1049
|
Panasonic | Alpha 2 | POOR CONTRAST | R562 ( 130K ) OPEN | 14-09-04 |
Panasonic | Alpha 2 | POOR EW | L752 SC | 14-09-04 |
Panasonic | Alpha 2 | POOR TEXT PERFORMANCE | C3507 100pf PIN 9 IC3501 | 14-09-04 |
Panasonic | Alpha 2 | Q552 ( 2SD1441 ) s/c | Check for D/J on line drive TX T531 | 14-09-04 |
Panasonic | Alpha 2 | Red content smeary & critical to set | Peaking coil in red o/p cct hi res | 14-09-04 |
Panasonic | Alpha 2 | Red pic aft short while of operation | C353 220pF on CRT base leaky | 14-09-04 |
Panasonic | Alpha 2 | Reference oscillator bars across screen. | C642 ( 10nF ) leaky. | 14-09-04 |
Panasonic | Alpha 2 | Servicing the Alpha 2 Chassis | See TV Mag July 1997 & Dec 1998 | 14-09-04 |
Panasonic | Alpha 2 | Set bursts into life then goes into StBy leaving 3 | L303 ( 10uH ) o/c in 12V circuit | 14-09-04 |
Panasonic | Alpha 2 | Set dead no line drive | Check R851 ( 2R2 ) | 14-09-04 |
|
Panasonic | Alpha 2 | SEVERE FIELD DISTORTION | R469 470R | 14-09-04 |
Panasonic | Alpha 2 | SHUTS DOWN WHEN WARM | ON3105 D811 OPTOCOUPLER ( LINK PINS 3 AND 4 TOGETHER TO PROVE ) | 14-09-04 |
Panasonic | Alpha 2 | Sound dist from 1 chan | C2442/1 100pF leaky | 14-09-04 |
Panasonic | Alpha 2 | STUCK IN SBY IN THE RESET LINE TO MICRO. REMOVE R8 | CHECK C1251 10nf | 14-09-04 |
Panasonic | Alpha 2 | Teletext - white bars over teletext | Mod | 14-09-04 |
Panasonic | Alpha 2 | Tuning erratic & chans disappear | C15 2µ2 | 14-09-04 |
Panasonic | Alpha 2 | Tuning goes off with ticking | Chopper chip STR54041 | 14-09-04 |
Panasonic | Alpha 2 | Tuning int | R171 10k in tuning voltage line int | 14-09-04 |
Panasonic | Alpha 2 | Txt drifts across pic/flashing | C3511 220pf in 6Mhz phase cct leaky | 14-09-04 |
Panasonic | Alpha 2 | Txt absent | C3517 10nF pin 15 IC3501 leaky | 14-09-04 |
Panasonic | Alpha 2 | Video disappears int sound OK | link pins 5 & 12 of IC2601 if pic returns IC u/s | 14-09-04 |
Panasonic | Alpha 2 | Video int disappears | IC2601 M51326P AV sw chip - to check, remove chip & jumper I/P pin 5 & O/P pin12 | 14-09-04 |
Panasonic | Alpha 2 | Whistling int | Dry joints LOPTx overwind | 14-09-04 |
Panasonic | Alpha 2 TX24T1 | Squeal from psu only with LED lit | Check for 25v at D852 if missing then check for bad joints at chopper transformer | 14-09-04 |
Panasonic | Alpha 2 TX28W2 | Dead - blows R555 HT supply fusible | Q366 2SC3311 s/c, Q352 2SC4714 s/c on the CRT and D551 s/c (used BYD33J) in +200V supply | 14-09-04 |
Panasonic | Alpha 2 TX28W2 | Tries to start 3 times then dead | Loptx - focus volts too high - replace | 14-09-04 |
Panasonic | Alpha 2A | NOISE ON NICAM | C2572 - C2573 220pf | 14-09-04 |
Panasonic | Alpha 2A | SMEARY VIDEO | CHECK C684 ON V MODULE 22mfd BI-POLAR - USE 2 IN SERIES. | 14-09-04 |
Panasonic | Alpha 2M TX21MD3 | Dead, relay clicking for three or four minutes, then works o/k | C807 & C806 ( 100uF 50 volt ) in power supply primary | 14-09-04 |
Panasonic | Alpha 2W | at switch on runs for 2 sec and goes dead | HT too high at 180V, OK if running on a dummy load-
STR54041 is faulty. | 14-09-04 |