| Make | Model | Problem | Solution | Date |
| | | |
| Found: 901
|
| Hitachi | 162E | Frame cramping at top. | R613 high. | 14-09-04 |
| Hitachi | 36CX39B | 5 year old Hitachi 36CX39B's picture tube has suddenly gone to a all black screen with a thin line (1/4") of picture horizantally through the middle of the screen. At first when did this I could power off, wait a few seconds power on and problem gone. Now | problem in vertical difflection section most probebly some dry-jonts in
vertical IC , re-soled all cct ponts in this section and ic as well | 26-09-05 |
| Hitachi | 46TN series | HT settings | HT=110v in 21" sets; 146v in 25/28" sets (note ZD950 NOT 10v zener) | 14-09-04 |
| Hitachi | 46TN series | Int dead | Dry joint R719 in prot network (half hidden by strut) | 14-09-04 |
| Hitachi | 50FX30B | I have a Hitachi 50FX30B rear projection set that won't power on, no power LED on fornt panel. It started shutting down after playing for a little while (or being unplugged) but now nothing at all, except a click when you turn it on.
There is a serie | Hi, If your led`s don`t stay lit your set has a short, check all of the
little chemical fuses near the led`s one or more are open, once you
find the open fuse that`s the line with the shorted part on it, I would
say without some experience with tv repair your probably not going
to be able to fix it yourself, time to call a tech, | 23-06-05 |
| Hitachi | A series | St/by only | Check R952 47k or 68k, check dry joints IC950, 951 & 952 | 14-09-04 |
| Hitachi | A series | To check psu - remove Q904 & sw on | If no volts replace R901 82k, R909 6k8 | 14-09-04 |
| Hitachi | A4 | Dead - tripping with relay clicking in time | Connect dummy load to removed R751 3R3 7w connection & HT ok at 150v with sound. IC601 Field/E/W chip proved faulty & D701/D701A | 14-09-04 |
| Hitachi | A5 | E/W faulty | Replace IC601 TDA8350Q | 14-09-04 |
| Hitachi | A5 | field fault | TDA8350Q & D718 BYD33 | 14-09-04 |
|
|
| Hitachi | A5 | To enter service mode | Enter factory mode by holding "Vol+" & "Vol-" whilst sw on, then press "Tuning" button under flap on r/c | 14-09-04 |
| Hitachi | A5 | To exit Factory Mode (Model displayed on screen) | Switch to st/by whilst service mode is displayed | 14-09-04 |
| Hitachi | A5 | To get out of factory pre-set mode (Model & proc type displayed on screen) | Hold "Vol+" & "V0l-" buttons in whilst switching on | 14-09-04 |
| Hitachi | A5 C2976TN | Sparks around crt base then reverts to st/by | LOP stage tuning cap o/c & clean up print on crt base | 14-09-04 |
| Hitachi | A7 | Dead - overvolts Zener PGK180 s/c | Check dry joints HT pot RV950, R950 68k, R952 8k2 & opto IC901 Pt no T548013 -see write up from Dave Hewitt | 14-09-04 |
| Hitachi | A7 C24W1TN | Trips | Does it trip with A1 volts at min/max? If not, check Nicam chip is fully home in its holder | 14-09-04 |
| Hitachi | A7 series | Field collapse or cramp | Check IC601 & if R616 68k is fitted, if not connect across ZD603 - helps prevent crt flashover damage | 14-09-04 |
| Hitachi | A7 series | Int reverts to st/by - due to high HT of 175v (135v) | Check for dry joints (often invisible) on Set HT pot VR950 | 14-09-04 |
| Hitachi | A7 series | Short pic | Check value of R602 or 603 (1R - 2R2), they can increase in value slightly | 14-09-04 |
| Hitachi | C1410R | Tuning goes off slightly | VL08 BC858C sm in AFC cct; VF06 BF840 sm | 14-09-04 |
| Hitachi | C1411T | No Txt , r/c & chan skipping | txt chip IT01 xtal osc inop. XT01 replaced | 14-09-04 |
| Hitachi | C1411T | only store 1 chan - in skip mode & r/c locks | 27Mhz xtal in txt pcb | 14-09-04 |
| Hitachi | C1414-300 | Dead - Q903 ON4584 s/c chopper tr | Replace with Hitachi BUT12AF & R951 39k 0.6w metal film | 14-09-04 |
| Hitachi | C1414R | DEAD , Q703 THYRISTOR SWITCHING | CHECK/REPLACE ZD701 36v | 14-09-04 |
| Hitachi | C1414R-311 | dead | Q903 ON4584 chopper s/c R951 39k hi res | 14-09-04 |
| Hitachi | C1414T | Dead with ZD952 prot zener s/c | HT too high - R951 39k 1/2w o/c | 14-09-04 |
| Hitachi | C1414T | off no st/by led | 82k 0.5w start up res R901 o/c | 14-09-04 |
| Hitachi | C1414T | Stuck in st/by - no line drive | Safety thyristor Q703 TS0820-20 faulty - check by removing - set should then work | 14-09-04 |
| Hitachi | C1415T | No pic/sound ok | No line drive as Q701 BF459 dr tr o/c | 14-09-04 |
| Hitachi | C1420VT | Crack from LOPTx & st/by only | replace loptx | 14-09-04 |