| Make | Model | Problem | Solution | Date |
| | | |
| Found: 79
|
| Bush | 2064NTX | Field collapse | Check sawtooth wform at pin 42 IC100 TDA8361, if absent replace R149 3M3 | 14-09-04 |
| Grundig | 6415 | Loss of sync - int. | IC TMS3755 IC on 'abstimm baustein' module. | 14-09-04 |
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| Grundig | CUC6460 | No sound - pic ok | SM transistor CT40061 (BC857B) faulty on main audio board | 14-09-04 |
| Grundig | T51-640 CUC6300 | Lock removal | Vol + Vol - Prog- Prog + then i or pc
| 14-09-04 |
| Hitachi | C1646 | Dead - tries to start. | R908 22K high or o/c . making HT rise so set shutting down instantly , chk HT with line o/c & bulb | 14-09-04 |
| Hitachi | C1646 | DEAD , FUSE BLOWN | CHANGE Q903 -T 633133 , Q901 - 2390022 , IC901 T900406 ZD903 T536171 ZD904 - T 536171 , ZD901 - T 536197 | 14-09-04 |
| Hitachi | C2164TN | Dead | Check for dry joints R719 in trip cct | 14-09-04 |
| Hitachi | C2164TN | Dead - psu shut down | R901 82k 1/2w in psu | 14-09-04 |
| Hitachi | C2164TN | Int start up - ok once going | Dry joints Q954 emitter in st/by sw cct | 14-09-04 |
| Hitachi | C2164TN | Int trip | ZD701 pt no 2339251M | 14-09-04 |
| Hitachi | C2164TN | SHUTS OFF INT | ZD701 Pt No 2339251M | 14-09-04 |
| Hitachi | C2164TN | To check psu - remove Q904 & sw on | If no volts replace R901 82k, R909 6k8 | 14-09-04 |
| Hitachi | C2164TN | Trips at sw on | TDA7263M audio o/p chip s/c | 14-09-04 |
| Hitachi | C2164TN C2564TN | WONT START , JUST MOMENTARILY ENERGISES THEN DIES | CHECK 25v SUPPLY TO AUDIO | 14-09-04 |
| Hitachi | C2564 | No Txt | ENTER THE PROGRAMME MODE OF THE SET BY PRESSING AND HOLDING BOTH THE VOLUME + AND VOLUME - BUTTONS WHILE
SWITCHING THE SET ON BY THE MAINS ON OFF SWITCH. AFTER A FEW SECONDS, THE CHANNEL DISPLAY WILL GO OUT AND THE SCREEN PROMPT "SERVICE 05" WILL APPEAR. PULL DOWN THE FRONT COVER OF THE REMOTE CONTROL HANDSET TO REVEAL THE VCR CONTROLS PRESS THE TWO RECORD BUTTONS TWICE. THIS WILL BRING UP THE "TUBE" MENU.PRESS THE TELETEXT BUTTON ON THE REMOTE HANDSET,AND THE WORDS "TEXT SERVICE MODE" WILL FLASH YOU CAN NOW ADJUST THE DATA CAPTURE WINDOW BY USING THE BLUE COLOURED BUTTONS ON THE REMOTE HANDSET IT IS RECOMENDED THAT YOU START BY PRESSING THE BOTTOM BLUE BUTTON.EACH TIME YOU PRESS THE BUTTON WILL MOVE THE ADJUSTMENT ONE "NOTCH". YOU MAY NEED TO PRESS THE BUTTON 7-10 TIMES WHEN THE TEXT CLOCK STARTS TO RUN NOTE THAT POSITION. THEN CONTINUE TO PRESS THE SAME BLUE BUTTON ON THE REMOTE HANDSET,NOTING THE NUMBER OF EXTRA PRESSES REQUIRED,UNTIL THE TEXT CLOCK STOPS ONCE AGAIN. NOW USING THE UPPER BLUE BUTTON,MOVE THE SETTING HALFWAY BETWEEN THE TWO POINTS YOU HAVE JUST NOTED I.E. IF THERE ARE EIGHT STEPS BETWEEN THE TWO POINTS AT WHICH THE TEXT CLOCK STOPS THEN PRESS THE UPPER BLUE BUTTON FOUR TIMES. WHEN YOU HAVE REACHED THIS POINT THE TEXT SHOULD RUN NORMALLY.PRESS THE STORE BUTTON ON THE REMOTE HANDSET AND THEN GO TO STANDBY TO EXIT THE SERVICE MODE. IF FOLLOWING THIS ADJUSTMENT THESE SETTINGS WILL NOT STORE, REPLACE I.C.2002 PART No E740007 | 14-09-04 |
| HITACHI | C2564N | FRAME COLLAPSE | REPLACE FRAME IC AND C604 IC**TDA8178, 100MFD63V | 14-09-04 |
| Hitachi | C2564TN | Dead - s/c lop tr &/or e/w mod diode | Check L651 e/w coil for drys also L650 & Q651/652 | 14-09-04 |
| Hitachi | C2564TN | Dead apart from LED flickering | F902 630mA o/c, LOPTr BU808DF1 & corr Tr BU801 s/c; D704 mod diode failed due to dry joints Q651, check L650. Note :- comps normally run hot - will not work with dummy load | 14-09-04 |
| Hitachi | C2564TN | Field & E/W int | Check for dry joints esp on FOP chip (hidden under plastic strut) | 14-09-04 |
| HITACHI | C2564TN | INT EXCESSIVE WIDTH SEEMS LIKE A DRY JOINT | REPLACE Q752 | 14-09-04 |
| Hitachi | C2564TN | INT EXCESSIVE WIDTH SEEMS LIKE A DRY JOINT | REPLACE Q752 | 14-09-04 |
| Hitachi | C2564TN | lack of height, cramp & int field collapse | dry joints IC601 TDA8178 also pin 2 low volts (16 instead of 27v) R609 1R hi res | 14-09-04 |
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| Hitachi | C2564TN | P2 locked on AV1 | 1) Select chan which has been locked in AV mode. 2) Press upper red key on double row of col buttons (AV
mode). 3)menu appears showing chan posn & its AV
setting/freq 4) At bottom of screen are AV options for that chan which correspond to col keys on remote. RED=AV1, GREEN=AV2, YELLOW=AV3, BLUE=AV4, VIOLET=AERIAL. 5) Press one of violet keys & off-air pic returns. 6) Press store key (diamond symbol). 7) Press "F" key to exit menu. | 14-09-04 |
| Hitachi | C2564TN | Tripping - blows 630mA fuse on E/W board | Q651, Q652, D704 all caused by L651 & R609 1R0 & FOP chip TDA8178S | 14-09-04 |
| Hitachi | C2564TN G100 | Tripping | Dis plug PL702 & connect bulb between plugs orange lead & chassis to check psu. HT should be 140v. If ok check lop stage - D704 BY228 & dry joints L650 | 14-09-04 |
| Hitachi | C2864TN | Electronic screwdriver set up | Hold the vol + and - buttons and switch on. The set will come up with Factory 05 on screen. On the handset press the two rec keys twice(linked by white line)
The set will display the tube menu. The top coloured adjustments correspond to the top coloured keys on the
handset , the bottom coloured adjustments correspond to the bottom coloured keys. Push the coloured key on the hand set corresponding to the adjustment,
ie VA for vertical Amplitude. VA will be high lit. Now pressing the Vol+ or - on the handset will adjust the value. To store the settings , press diamond shaped key (store) and put set into standby to exit service mode.
You do not need to store each adjustment, you can adjust them all and store them once at the end.
It is a good idea to jot down all the numerical values for all the adjustments first, so if you make a mess you can put the adjustments back to their original settings. | 14-09-04 |
| Hitachi | C2864TN | Slow tripping/partial field coll/blank raster/no sound | R609 1R fusible o/c - also replaced TDA8178 Field o/p IC as a precaution | 14-09-04 |
| Hitachi | C2864TNX | Dead aft EHT rustle & led single blink at sw on | HT checked on dummy load at 170v (149v). Int set HT pot VR930; R509 1R 1/2w safety res by LOPTx o/c; IC800 RGB o/p chip & C821 4µ7 250v faulty also. | 14-09-04 |
| Hitachi | C2864TNZ | Slow or no start up | C909 470µ 25v | 14-09-04 |
| Hitachi | C2964TN | No E-W & excess width | IC601 TDA8350Q | 14-09-04 |