| Make | Model | Problem | Solution | Date |
| | | |
| Found: 901
|
| Hitachi | NP84CQ/2 | DEAD BUZZES , ZD953 S/C | C908 4u7 160v | 14-09-04 |
| Hitachi | NP84CQ/2 | Dead. | STR4211 IC901 power supply IC s/c , also change2.7v zenor | 14-09-04 |
| Hitachi | NP84CQ/2 | Distorted sound. | R423 ( 56R ) high in value. | 14-09-04 |
| Hitachi | NP84CQ/2 | Int blowinf fuse. | TH901 posistor. | 14-09-04 |
| Hitachi | NP84CQ/2 | line - tear - pulling & drift. | C214 ( 470uf ) of pin 7 of IC201 | 14-09-04 |
| Hitachi | NP84CQ/2 | NO PIC + SCREAMS | LOPT + TRANSISTOR SC | 14-09-04 |
| Hitachi | NP85 | Appears dead but voltages on tube base | D920 , D919 in psu dry jointed or oc. | 14-09-04 |
| Hitachi | NP85 | Teletext - coming over Tv picture. | IC2101 ( SAA1272 ) , SAA1251. | 14-09-04 |
| Hitachi | NP85CQ | blank raster no sound | TDA4505 no vid o/p chip faulty TDA4505E will work | 14-09-04 |
| Hitachi | NP85CQ | Dead - normal volts at crt base | Dry joints D920, 919 in psu | 14-09-04 |
|
|
| Hitachi | NP85CQ | No sound | TDA4505 -2Y chip faulty - Mod kit reqd to use TDA4505E | 14-09-04 |
| Hitachi | NP86 | BLANK RASTER + NO SOUND | TDA4505 US-CHECK TYPE No- | 14-09-04 |
| Hitachi | NP86 | INT LOSS OF PIC , GOES DARK | XTG2 17.73Mhz CRYSTAL ( IN TEXT MODE PIN 9 IC13 SHOULD BE 4v , IN MIX IT SHOULD PULSE , TV MODE ZERO. ) | 14-09-04 |
| Hitachi | NP87 | SET INT WON'T COME ON + BLOWS LINE OP TRANSISTOR E | C917 IN POWER SUPPLY 4u7 | 14-09-04 |
| Hitachi | NP8CQ | Int colour. | One leg og R620 s/c to jumper lead J723. | 14-09-04 |
| Hitachi | NP8CQ | Int no colour. | Try adj R515 , make sure agc control R203 is turned up. | 14-09-04 |
| Hitachi | NP8CQ | OVER BRIGHT PIC , NO FLYBACK LINES | 22mfd , 250v SMOOTHING CAP TO RGB OP. STAGES | 14-09-04 |
| Hitachi | NP8CQ | Standby - in standby at switch on. | BC548 also 4 7uf/22uf electrolytics. | 14-09-04 |
| Hitachi | NP8CQ | Startup - no startup. | Chopper transistor. | 14-09-04 |
| Hitachi | NP9A | Dead - Int dead. | DJs | 14-09-04 |
| Hitachi | NP9A | Line - pulling on verticals. | CRT conductive earthing , C983 , C907 , IC980. | 14-09-04 |
| Hitachi | NP9A | Standby - going into standby at switch on. | Check C919 if its a 22u f change it to a 220u f. | 14-09-04 |
| Hitachi | NP9A | Standby - going into standby int. | 4.43Mhz crystal X1401. on memory PCB PC895. | 14-09-04 |
| Hitachi | NP9A | Standby - stuck in standby mode. | Change C919 to 220u F , replace C906/918 , drys on T901/703 | 14-09-04 |
| Hitachi | NP9A | Tripping. | Q905 ( 2SA673 ) o/c. | 14-09-04 |
| Hitachi | NP9A | Width - reduced. | R756 o/c. | 14-09-04 |
| Hitachi | PAL4 | Frame - foldover after 10 mins. | C613 ( 100u f ) o/c. | 14-09-04 |
| Hitachi | TN2166/2146 | POWER SUPPLY TRIPS | SUSPECT DRY JOINTS ON IC952 | 14-09-04 |
| Hitachi | TN2166/2146 | St/by only - HT=90v | Dry joint IC952 5v reg | 14-09-04 |
| Hitachi/Fujian | HFS1425 | Store function inoperative-Does not hold memories. | Pin2 of M58655 memory chip, must be at -30V. If not, check/ replace C920 1uF/250V cap. | 14-09-04 |