Make | Model | Problem | Solution | Date |
| | | |
Found: 19
|
Lowe | 66472 | Sound - motorboating when sw on | C671 1000µ 16v & C675 in 7.5v supply | 14-09-04 |
Lowe | C8001 | Dead - LOP stage not working | T534 BD137 s/c b-e; upgraded to a TIP41C as original ran hot | 14-09-04 |
Lowe | C8001 | E-W faulty | R583 22R & IC1581 TDA4950 | 14-09-04 |
Lowe | C9000 | Dead | fusible link R504 o/c & 315mA fuse in LOP o/c - LOPTx | 14-09-04 |
Lowe | C9000 | Field - lack of height | 27v supply low, C656 2200µ35v & T658 BD139 | 14-09-04 |
Lowe | C9003 | Relay on front PCB energized but volts at PSU main Cap <300V (No start up as there is <7v to TDA 4601 | Relay on Front panel is defective, it make contact only briefly (you cannot turn the set on by s/c relay contacts ) | 14-09-04 |
Lowe | Concept 55/63/70 | Dead | Line dr tr T525 BD139 leaky & 3R3 resistor in 27v line o/c - also check R666 0R22 safety res | 14-09-04 |
Lowe | E3000 | Attempts to start but goes into prot mode (not st/by) | Dis HT from LOP stage restores HT - BA157, feeding the 27Volts, from the loptx was shorted, | 14-09-04 |
Lowe | M124 C8500 | Dead with 1.6A fuse blown | TDA4601 chopper chip s/c, small blue therm in start up cct, T539 BU508D LOPTr hi res | 14-09-04 |
Lowe | M124 C8500 | High HT (should be 142v) | C652 47µ 250v ; C653 47µ | 14-09-04 |
|
Lowe | M124 C8500 | Pic jitter & /or hum on pic with chan display flickering, sound goes low & controls not working int | Check for dry joints in psu, front pcb & IR receiver | 14-09-04 |
Lowe | MS56 C8001 | Dead - st/by only | Line dr Tr supply res R534 3R3 o/c also check C534 47µ | 14-09-04 |
Lowe | MS56 C8001 | Dead after smelling hot | C652 47µ 250v HT cap leaky/ burnt conns | 14-09-04 |
Lowe | MS56 C8001 | High HT (should be 142v) | C638 1µ | 14-09-04 |
Lowe | MS56 C8001 | Venetian blinds | P323 1k LZ AMP preset o/c | 14-09-04 |
Lowe | Profi T28 | Poor start up from cold | C626 100µ in start up cct for TDA4601 | 14-09-04 |
Lowe | S124 | 150 Volt too low | 4 caps in SOPS: ,3 * 100uF + one at 1uF have to be changed | 14-09-04 |
Lowe Opta | C8001 | High ht and LOPTx arcing (142v normal) | replace loptx & C624, 626, C641 100µ, C638 1µ, etc etc | 14-09-04 |
Lowe Opta | C8001 | No sound | Mute line held low - D496-9 diodes 1N4148 replaced | 14-09-04 |