Make | Model | Problem | Solution | Date |
| | | |
Found: 9
|
JMB | 134TX Orion | AGC type overload | Main micro under can not seated properly | 14-09-04 |
JMB | 20NTX 11AK30 | Sound absent apart from the odd crackle | 18.432Mhz Xtal in Nicam circuit | 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 |
JMB | JMBM020FTS PT92-90deg | No col, ragged verts & causing interference on hearby tvs | LOPTx - (pt-10677080) (FBT40784) from Wiltsgrove @ 14.75UKP's.arcing at bottom where EHT lead is pushed in | 14-09-04 |
JMB | JMBN028WSS | E/W dist with burning smell | RV38 8R2 in LOP o/c, CD21 680nF 250v o/c | 14-09-04 |
JMB | NO28WSS PT92 | Dead with green LED flashing | Volts at psu sec very low - OK on dummy load - DD07 BY228 faulty | 14-09-04 |
JMB | PT92 | Reverts to st/by aft brief EHT rustle | Check Tr BC337 cct Ref TD04 in 8v supply, it's probably o/c. | 14-09-04 |
JMBC | 1499BA (Orion) | St/by only | New EEPROM ordered from CPC cured problem | 14-09-04 |
JMBC | 2099TX Matsui TVR180 | St/by only | syscon/timer/servo IC1006 OEC0078C using the sub-panel to get it out
of S/by and then corrected incorrect Hex values. (Or get preprog 24C08 from Grandata) | 14-09-04 |