| Make | Model | Problem | Solution | Date |
| | | |
| Found: 901
|
| Hitachi | C28300,C2576TN etc A5 chassis | Red pic with fb lines | R829 fusible on crt base o/c (not shown on cct diag) | 14-09-04 |
| Hitachi | C28300TN A5 | Long time for pic to appear & white bands across | C954 1000µ 35v in 12.6v supply | 14-09-04 |
| Hitachi | C2842N 11AK19PP | Dead - D823 blown (not shown on cct) | When replaced still faulty, IC802 MC44604P chopper chip u/s - also check FET chopper Tr | 14-09-04 |
| Hitachi | C2846 | Field collapse | IC601 (TA8427K) + 26v rail supply R710 (2R0 safety) | 14-09-04 |
| Hitachi | C2846TN | Field - lines at top of pic | TA8427K field chip | 14-09-04 |
| Hitachi | C2846TN | Field collapse | R710 2R in FOP supply o/c | 14-09-04 |
| Hitachi | C2846TN | Field collapse | TA 8427K and 2R0 safety res | 14-09-04 |
| Hitachi | C2846TN | Model no displayed (factory mode) | Press both rec buttons on hset, sw to st/by & then sw off at mains. Wait 30secs b4 sw back on. | 14-09-04 |
| Hitachi | C2846TN | MODEL OF TV DISPLAYED ON SCREEN | PRESS BOTH RECORD BUTTONS ON REMOTE SWITCH TO STANDBY THEN SWITCH OFF AT SET WAIT 30SECS THEN SWITCH BACK ON | 14-09-04 |
| Hitachi | C2846TN | No sound | EEPROM corrupt due to dry joints on regs - replacement pt no E730045 | 14-09-04 |
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|
| Hitachi | C2846TN | No sound - ok thro scart | EEPROM faulty | 14-09-04 |
| Hitachi | C2846TN | No sound (AV sound ok) | IC002 24C04 memory chip | 14-09-04 |
| Hitachi | C2846TN | No Sound via off air or scart | Replace IC002 24C04 (Programmed with correct file) | 14-09-04 |
| Hitachi | C2846TN | Removing Code “C46TN” from screen | TV in factory set up mode - Using RCU, press two VCR REC buttons together. The MENU will appear, then switch to standby. Turn appliance back
on and prompt should have disappeared. | 14-09-04 |
| Hitachi | C2846TN | Shuts down int for first half hour | Dry joints esp at R719/R718 | 14-09-04 |
| Hitachi | C2846TN | St/by only | IC952 dry joints | 14-09-04 |
| Hitachi | C2846TN | St/by only | HT high at 160v (should be 150v) R950 68k risen to 80k | 14-09-04 |
| Hitachi | C2846TN | Tripping with HT peaking at 170v | OK when dummy load touched onto HT rail with HT correct at 150v; R951 8k2 in opto cct hi res | 14-09-04 |
| Hitachi | C2846TN A4 | Raster still present in st/by | D4470 1N4531 leaky (RHS of the heatsink audio IC4450), working diode must have 28V at one end and 3.5V at the other end. | 14-09-04 |
| Hitachi | C2846TN A4 | St/by only or int goes to st/by | Dry joints R957 (near Q950 heatsink) & check drys on IC951, 952 etc | 14-09-04 |
| Hitachi | C2848TN | Dead | Check 138v HT if hi check R950-2, Q703 gate = 3-4v (trip mode) Check for dry joints on R719 or Ics 950, 951,952 | 14-09-04 |
| Hitachi | C2848TN | In factory set up mode - C***48TN-311 displayed | Remove R/C flap & press tuning button. Then press Menu button & go to st/by | 14-09-04 |
| Hitachi | C2848TN | No sound - sound psu tripping | Still trips with both audio o/p chips dis'd - D9112 s/c | 14-09-04 |
| Hitachi | C2848TN | no tuning or hi vol setting (hotel mode) | depress vol+/- whilst sw on. Press 2 vcr buttons on r/c. Check for "H" in lower right of menu. If pesent, delete using - /-- button. | 14-09-04 |
| Hitachi | C2848TN | Txt has low contrast | Poor freq response on Txt - change C805-6&7 to 470pF, check R203 is 2k2 & R204 is 560R - R204 can be changed to 680R as a last resort | 14-09-04 |
| Hitachi | C2856/2886 | HT setting | 152v | 14-09-04 |
| Hitachi | C2858TN | Dead & tripping | C932 1000µ 16v, C933 2200µ 16v low cap | 14-09-04 |
| Hitachi | C2858TN | dead int for a few secs at a time | VR941 2k2, R941 100k - adj HT to 157v | 14-09-04 |
| Hitachi | C2858TN | Int dead between 1 & 3 secs | Replace VR941 2k2, R941 100k, and set HT to 157v | 14-09-04 |
| Hitachi | C2862TN | NO EW AND LOW WIDTH | CH09 150nF OC | 14-09-04 |