| Make | Model | Problem | Solution | Date |
| | | |
| Found: 901
|
| Hitachi | NP81CQ Mk2 | Flyback lines at top | C715 4µ7 250v | 14-09-04 |
| Hitachi | NP82 | Standby - stuck on standby - no functions. | IC901 ( STR441 ) on main chassis. | 14-09-04 |
| Hitachi | NP82CQ | dead | Pri HT - no 11v HT - to overide overvolts trip s/c C912 & sub lop tr with bulb. - HT now 130v (correct on dummy load). Replace STR6020 and now ok | 14-09-04 |
| Hitachi | NP82CQ | dead | STR6020 s/c; 2Afuse o/c; Lop tr 2SD898B Q781 s/c | 14-09-04 |
| Hitachi | NP82CQ | Dead. | Drys on D950. | 14-09-04 |
| Hitachi | NP82CQ | FIELD FOLDOVER & FLYBACK LINES | R614 HIGH 150k | 14-09-04 |
| Hitachi | NP82CQ | Frame - rolling when hot. | C609 ( 0.22u f ) if not check components off pin 1 of TDA | 14-09-04 |
| Hitachi | NP82CQ | Int loss of sound. | Looks like dry joints check lead out wires on TX. | 14-09-04 |
| Hitachi | NP82CQ | No chan store | pin3 MDA2062 memory chip only 4.7v (20v), break in pcb track under on/off sw | 14-09-04 |
| Hitachi | NP82CQ | NO COLOUR PIN 5 IC501 LOW ( NORMALLY 3.8v FOR MAX | C507 2u2 SC | 14-09-04 |
|
|
| Hitachi | NP82CQ | No picture. | IC901 ( STR6020 ) , 2SD898B , Q681 ( 2SC1213A ) , R772. | 14-09-04 |
| Hitachi | NP82CQ | No sound or raster. | R772 o/c , replace STA441C. | 14-09-04 |
| Hitachi | NP82CQ | Ragged verticals & loud whistle. | IC701 ( LA7801 ) | 14-09-04 |
| Hitachi | NP82CQ | Tuning - drift. | D1503-8 , D1511-2 leaky. | 14-09-04 |
| Hitachi | NP82CQ | Tuning - no tuning above a certain frequency. | D1508-1514 leaky. | 14-09-04 |
| Hitachi | NP82CQ | Tuning - snowy picture & poor sound. | C054 ( 22uf ) in AGC cct leaky. | 14-09-04 |
| Hitachi | NP82CQ | Whistle - loud whistle & ragged verticals. | IC701 ( LA7801 ) | 14-09-04 |
| Hitachi | NP82CQ | WONT TUNE | CHECK ZD901 , IC901 ( LM317T ) | 14-09-04 |
| Hitachi | NP82CQ | WONT TUNE , LOW FIXED VOLTAGE AT TUNER TUNING PIN | R1533 ( 39k ) | 14-09-04 |
| Hitachi | NP82CQ Mk2 | int revert to st/by | IC901 STR6020 | 14-09-04 |
| Hitachi | NP82CQ Mk2 | off, trips for a few secs at sw on | When trip disabled squeal from lopt - R772 10R hi res | 14-09-04 |
| Hitachi | NP82CQ/2 | Dead. | Q681 , IC901 , R772. | 14-09-04 |
| Hitachi | NP82CQ/2 | No picture. | IC901 ( STR6020 ) , 2SD898B , Q681 ( 2SC1213A ) , R772. | 14-09-04 |
| Hitachi | NP82CQ/2 | No sound or raster. | R772 o/c , replace STA441C. | 14-09-04 |
| Hitachi | NP82CQ/2 | Ragged verticals & loud whistle. | IC701 ( LA7801 ) | 14-09-04 |
| Hitachi | NP82CQ/2 | Sparking inside set. | R902/3 ( 82k , 0.5w ) , IC701 ( LA7801 ) , IC901 ( STR6020 | 14-09-04 |
| Hitachi | NP82CQ/2 | Standby - going into standby. | IC901 ( STR6020 ) | 14-09-04 |
| Hitachi | NP82CQ/2 | Tripping. | IC701 , IC681 , Q681 , IC901. | 14-09-04 |
| Hitachi | NP82CQ/2 | Whistle - loud whistle & ragged verticals. | IC701 ( LA7801 ) | 14-09-04 |
| Hitachi | NP82CQ2 | Standby - int going into standby. | IC901 ( STR6020 ) | 14-09-04 |