HITACHI TELEVISION REPAIR AND TROUBLESHOOTING  TIPS

_Here are some ideas to help you with Hitachi television troubleshooting issues. Hitachi TV may have some technical problems from time to time. If this is the case, take the following tips into account to troubleshoot your Hitachi TV.


HITACHI TV REPAIR TIPS

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  • Hitachi cp32wd2tan service mode, from menu press/hold tv vol+/vol- till service options show
  • Hitachi cpb226 too bright, 22uf, 250v reservoir cap for supply to rgb output stages
  • Hitachi cpt1444 field collapse r228 4r7 nr chan 1 button.
  • Hitachi cpt1444 int goes hi blue / band across top dark/blanking q604.
  • Hitachi cpt1444 loptr 2sd1453 bu508a+in4007 cause ht regulator.
  • Hitachi cpt1444 np84cq change: ic501(tda3562a)change r726 from 680r to 560r and
  • Hitachi cpt1444 np84cq dead 800ma fuse ,2sd1453 loptr loptx q902 bu806, q903 bf442 36v zener zd901
  • Hitachi cpt1444 np84cq dead except for channel display fs901 .
  • Hitachi cpt1444 np84cq dead psu ok, r710 2k7 r713 2k2
  • Hitachi cpt1444 np84cq no snd, tda4503
  • Hitachi cpt1444 np84cq rolls ht=103v if hi 113v r908 22k.
  • Hitachi cpt1444 np84cq scrn flashes r,g on chan ic501+ r726 to 560r r610 8k2.
  • Hitachi cpt1444 np84q dark bands across on lo bril/cont zd601 rear cont pot.
  • Hitachi cpt1444 pic rolls. Eht trip thyristor r908 22k .
  • Hitachi cpt1444 rolls,eht trip r908 22k
  • Hitachi cpt1444 rolls. R908 22k
  • Hitachi cpt1446.pic rolls. Eht trip thyristor r908 22k .
  • Hitachi cpt1446r np84cq ht varys zd902(10v)
  • Hitachi cpt1454 np84cq gec1405h
  • Hitachi cpt1455 1=htr 2= 3=25v 4= 6=ht=103v 7=200v 5+9=earth 10=loptr
  • Hitachi cpt1455 chan display q902
  • Hitachi cpt1455 np84cq2 (gec c1408)
  • Hitachi cpt1456 dead,2sd1453-loptr+loptx
  • Hitachi cpt1456 np84cq no snd c245 1uf, 160v q421/2. 2sc2073
  • Hitachi cpt1456 np84cq2 line op tr loptx .
  • Hitachi cpt1471 geee disconnect eht cap,then ok tube gone cause str6020.
  • Hitachi cpt1471 np82c-2 field cramp sta441c field output chip.
  • Hitachi cpt1471 np82cq dead q681,ic901,r772
  • Hitachi cpt1471 np82cq dead r772(10r) sta441c
  • Hitachi cpt1471 np82cq goes into stby int ic901(str6020) hav cct dia.
  • Hitachi cpt1471 np82cq int stby/no pic ic901(str6020) q681,r772,q781,ic751.
  • Hitachi cpt1471 np82cq mumbly snd,adjust l402
  • Hitachi cpt1471 np82cq ragged verticals/loud whistle ic701(la7801).
  • Hitachi cpt1471 np82cq tripping ic681,ic701,ic901&q681
  • Hitachi cpt1471 np84cq dead q681,ic901,r772
  • Hitachi cpt1471 np84cq dead r772 sta441c
  • Hitachi cpt1471 np84cq int stby/no pic ic901(str6020)
  • Hitachi cpt1471 np84cq ragged vrticals/load whistle ic701(la7801).
  • Hitachi cpt1471 np84cq tripping ic681,ic701,ic901 q681
  • Hitachi cpt1473 np82c2 int stby str6020 chopper chip ic901.
  • Hitachi cpt1473 np84cq dead q681,ic901,r772
  • Hitachi cpt1473 np84cq dead r772 sta441c
  • Hitachi cpt1473 np84cq goes into stby int ic901(str6020)
  • Hitachi cpt1473 np84cq int stby/no pic :ic901(str6020) q681,r772,q781,ic751.
  • Hitachi cpt1473 np84cq ragged verticals/load whistle ic701(la7801).
  • Hitachi cpt1473 np84cq tripping ic681,ic701,ic901&q681
  • Hitachi cpt1474 field collapse r222(1r)
  • Hitachi cpt1474 field collapse r763+upc1378h+c602 100uf50v
  • Hitachi cpt1474 np82c2 np84cq mk2
  • Hitachi cpt1474 np84cq bright/trip tda3656
  • Hitachi cpt1474 np84cq mk4 no color c511(2u2f50v).
  • Hitachi cpt1474 np84cq4 dead lo volts at ic901 pins 25 :zd910
  • Hitachi cpt1474 np84cq4 field collapse r222
  • Hitachi cpt1474 np84cq4 int snd snd o/p transformer secondary winding.
  • Hitachi cpt1474 np84cq4 lo ht, c910 c919 (both 10uf)
  • Hitachi cpt1474 np84cq4 no pic/snd overbright raster ic501(tda3565).
  • Hitachi cpt1474 np84cq4 rolling warm c609 nr if chip pin 1 0.22uf.
  • Hitachi cpt1474 np84cq4 top down upc1378h
  • Hitachi cpt1474 np84cq4 tripping at switch on loptx
  • Hitachi cpt1474 rnp84cq mkii rolls,c609 0.22uf
  • Hitachi cpt1474 rolling c906(100uf400v).
  • Hitachi cpt1474r dead.bzx79c2v7 zener zd910
  • Hitachi cpt1474r excess brill tda3565
  • Hitachi cpt1474r tripped at switch on. Loptx
  • Hitachi cpt1476 np84cq field bounce ic601 pins
  • Hitachi cpt1476 np84cq4 field collapse r222(1r).
  • Hitachi cpt1476 np84cq4 field collapse upc1378h+d762+r763+d601.
  • Hitachi cpt1476 np84cq4 field top cramp like lo ht,c612(2u2f50v) c762(330uf).
  • Hitachi cpt1476 np84cq4 loptx hr7518
  • Hitachi cpt1476 np84cq4 no color c507 2.2uf
  • Hitachi cpt1476 top text lines, pin 7 of the field output chip ic601
  • Hitachi cpt1476r load squeal, loptx hr7518
  • Hitachi cpt1476r no tune r1533 39r, on remote control pcb pc279
  • Hitachi cpt1476r np82c2 np84cq mk3/4
  • Hitachi cpt1476r np84cq dead loptx tf025/751801(40001ed) hr7518
  • Hitachi cpt1476r np84cq mk2 dead 82k r902 r903 ok 2.7v zener zd910.
  • Hitachi cpt1476r np84cq no colour tda3565+adjref osc.
  • Hitachi cpt1476r warm rolling c609(220n) nr tda4503 pin1.
  • Hitachi cpt1476r warm rolls,c609 0.22uf,
  • Hitachi cpt1491 np84cz loptx=hr7518 2434141
  • Hitachi cpt1491 np84cz no snd/pic whistle,loptx
  • Hitachi cpt1556 salora l no luma luminance delay line
  • Hitachi cpt1556 salora l no luminance luminance delay line
  • Hitachi cpt1558 keyboard int rd54 820k nr keypad ribbon cable
  • Hitachi cpt1558 keyboard int rd54 820k tween base/emitt td12 near keypad ribbon
  • Hitachi cpt1558 luxor 18036549 int keyboard crack pcb nr rd54, a 82r
  • Hitachi cpt1626 np82cq top cramp r614 150k
  • Hitachi cpt1644 loptr 2sd1453 bu508a+in4007 cause ht regulator.
  • Hitachi cpt1646 dead bc548b q1455,
  • Hitachi cpt1646 field collapse 0.47r,r228.
  • Hitachi cpt1646 field collapse/lo height q602 pins.
  • Hitachi cpt1646 line hold adjust vr loc21
  • Hitachi cpt1646r 1985/86 p7084cq chassis hr7132.
  • Hitachi cpt1646r chan ind fs901
  • Hitachi cpt1646r chan ind only fs901
  • Hitachi cpt1646r dead no line drive ht ok,cause hi ht (100v max)
  • Hitachi cpt1646r no tuning memory reprogram memory ic
  • Hitachi cpt1646r np84cq rolls hi ht 103vn r908 22k.
  • Hitachi cpt2016 np81cq int lo height ,thick-film field output module.
  • Hitachi cpt2024 geeee loptx
  • Hitachi cpt2024 loptx=2432981=hr7132
  • Hitachi cpt2024 no luminance loptx pins
  • Hitachi cpt2024 np82cq dead scan coils
  • Hitachi cpt2024 np82cq field collapse. Scan coils
  • Hitachi cpt2024 np82cq gec c2086
  • Hitachi cpt2026 np83cq field lo height q651(2sd401a/tip41c))
  • Hitachi cpt2036 np83cq gec 2090 / c2295
  • Hitachi cpt2044 np83cq/2 field height 1uf c603 a blue tant
  • Hitachi cpt2046 field height 1uf c603 a blue tant
  • Hitachi 17ld4200     no picture no sound with power     defective tuner
  • Hitachi 17ld4200     no picture no sound with raster     capacitor c803 leaky
  • Hitachi 17ld4200     no sound     headphone jack open
  • Hitachi 26ld6600 & 26ld6600a, 32ld6600/a/b/c, 37ld6600 lcd tv burn in mode when replacing main pcb when replacing the main pcb on these models, the new part may be in the 'burn in' mode from manufacture. This will result in the image on screen flashing different colors. To exit the burn in mode: use the remote control : 1. Press menu button  2. Press the following button sequence:  4,7,2,5 : 3. Go to “options” and then set “burn in mode” to either on or off.
  • 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 horizontally 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 deflection section most probably some dry-joints in vertical ic , re-soled all cct points in this section and ic as well
  • Hitachi 42pd6600 plasma tv     no picture no sound with raster bad audio amp tpa3004d2
  • Hitachi 46tn series ht settings ht=110v in 21" sets; 146v in 25/28" sets (note zd950 not 10v zener)
  • Hitachi 46tn series no sound with picture bad audio amp tpa3004d2
  • Hitachi 46ux20b/21k     int dead dry joint r719 in prot network (half hidden by strut)
  • Hitachi 46ux20b/21k ht settings ht=110v in 21" sets; 146v in 25/28" sets (note zd950 not 10v zener)
  • Hitachi 46ux20b/21k no raster defective q902 and d912
  • Hitachi 50fx30b     i have a hitachi 50fx30b rear projection set that won't power on, no power led on front 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.     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
  • Hitachi 50fx30b no picture open q009
  • Hitachi 50ux22b/23k incorrect color/blue does not appear defective q831 and q832
  • Hitachi a series st/by only shorted transistor q004
  • Hitachi a4 to check psu - remove q904 & sw on if no volts replace r901 82k, r909 6k8
  • Hitachi a5 c2976tn sparks around crt base then reverts to st/by lop stage tuning cap o/c & clean up print on crt base
  • Hitachi a5 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
  • Hitachi a5 e/w faulty replace ic601 tda8350q
  • Hitachi a5 field fault tda8350q & d718 byd33
  • 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
  • Hitachi a5 to exit factory mode (model displayed on screen) switch to st/by whilst service mode is displayed
  • Hitachi a5 to get out of factory pre-set mode (model & proc type displayed on screen)     hold "vol+" & "v0l-" buttons in whilst switching on
  • Hitachi a7 c24w1tn trips does it trip with a1 volts at min/max? If not, check nicam chip is fully home in its holder
  • 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
  • Hitachi a7 series field collapse or cramp check ic601 & if r616 68k is fitted, if not connect across zd603 - helps prevent crt flashover damage
  • 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
  • Hitachi a7 series short picture     check value of r602 or 603 (1r - 2r2), they can increase in value slightly
  • Hitachi l32a01, l32a01a, l32h01e, l32h01ea, l32h01u, l32h01ua, 32ld8d20e_ea, hitachi 32ld8d20u, 32ld8d20ua lcd tv audio is distorted constantly and may have some background noise    

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_Warnings and Tips:

  • Before servicing please read the safety precaution carefully.
  • The operation voltage of Televisions are high. Be sure to take proper measures in protecting yourself and the machine when testing the system in the course of normal operation or right after the power is switched off.
  • Please do not attempt to troubleshoot your television using our TV Troubleshooting Tips if you feel that you are not technically competent.