TV
Repair Database
|
Hinari |
CT16 |
Dead |
D552 ERD29-06 - used BYW95C in lieu |
|
Hitachi |
C1422R |
PSU off with a bang |
D801 bridge rect DB107G s/c, chopper Q801 IRFI630G s/c, D805 BZT03C130
130volt 1.3watt zener s/c, R814 0R39 1/2w o/c. R813 0R22 1/2w o/c, Q404
BUT11AX LOPTr s/c, or fit T9813136. CHS code -12022TM (expensive) |
|
Hitachi |
C2514Z311 |
Hotel mode - stuck in |
Hold in Vol + & Vol- whilst sw on, when display appears with symbols
increase vol to level reqd |
|
Hitachi |
C2556TN |
Int dead |
check dry joints IC951 |
|
Hitachi |
C2556TN |
Trips 3 - 5 secs aft sw on |
R950 68k hi res |
|
Hitachi |
C2586TN |
Pic goes bright green & trips off |
Unable to set A1 volts correctly - D8 3v3 zener in G feed to crt base faulty |
|
Hitachi |
C2846TN |
Field collapse |
R710 2R in FOP supply o/c |
|
Hitachi |
C2846TN |
No sound |
EEPROM corrupt due to dry joints on regs - replacement pt no E730045 |
|
Hitachi |
C2976TN |
Dead |
C703 10nF 2Kv bulged & faulty |
|
Hitachi |
C2976TN |
Field - no scan at top just a few fback lines |
IC501 TDA9160A |
|
Hitachi |
C2977TN |
Dead aft initial burst of EHT |
C704 2n2 2Kv leaky & burnt - looked ok in cct |
|
Hitachi |
G10 C2564TN |
Line tearing/ringing type effect |
Check final anode cap for arcing |
|
Hitachi |
G10Q C2564 |
Int start up |
C927 470µ 25v in 12v line |
|
Hitachi |
G10Q C2564 etc |
Repeated failure of E/W diode D704 BY228 which causes tripping & blowing
fuse F902 |
Also replace Q651 BU801 pt no T636046 & Q652 BC548B, L651 filter coil pt no
2220642 (goes shorted turns) |
|
Hitachi |
G6P CPT2476 |
Dead apart from slight noise from psu |
HT reads 25v - 50v when LOP dis'd ; D902 dry joints |
|
Hitachi |
G7PS C2114T |
Stuck in st/by |
HT ok at 112v - cause was FOP chip TDA8274K |
|
ITT |
Compact B2 |
Trips at sw on - ok when LOP dis'd |
Fault was in psu - C700, 701 10µ ; C704 & C711 47µ |
|
JMBC |
1499BA (Orion) |
St/by only |
New EEPROM ordered from CPC cured problem |
|
JMBC |
2099TX Matsui TVR180 |
St/by only |
syscon/timer/servo IC1006 OEC0078C using the sub-panel to get it out
of S/by and then corrected incorrect Hex values. (Or get preprog 24C08 from
Grandata) |
|
JVC |
AV21F1EK |
Dull green pic slow to appear |
CRT |
|
JVC |
AV21F1EK |
No pic - sound ok |
TEA5101A RGB driver chip |
|
JVC |
AV21SX1EK |
Field - partial collapse - int |
Dry joint C961 2200µ 25v ; 8v smoother |
|
JVC |
AV25F1EK |
Text faulty - keeps jumping to random pages |
solder bridge across pins 1 & 2 of IC02 SAA5243 Txt proc chip |
|
JVC |
AV25VM1EK |
Field to & bottom cramp |
IC401 Field/EW chip TDA8350Q |
|
JVC |
AV25VM1EK |
St/by only & no line drive |
TDA8366 jungle chip IC101 pin 35 8v supply missing as IC951 8v reg faulty
KIA7808PI |
|
JVC |
AV28SD4EK |
Brief burst of power then dead |
LOPTx |
|
JVC |
AV28WR4EKS |
Dead |
Replaced s/c MC44604P chopper chip, CP953 blown, optocoupler TLP721FD4GR and
the error amp SE-135N finally cured the problem (HT was rising above its
correct 145v) |
|
JVC |
AVK21T |
Dead aft lightening strike |
Change STRS-F6653 / opto couple / Q941 / Q942 / D945 6v2 /IC901S1854 error
amp |
|
JVC |
AVS25SD4EK |
Comes on briefly to show good pic in EXT3 then reverts to st/by |
Possible EEPROM corruption - press "I" and "Audio Mute" simultaneously on
handset. This will put it into test mode. Another quirk of some EEPROM
problems is that the set will often switch to standby when going into or out
of Service Mode or when pressing "VSM Reset". |
|
JVC |
C201EK |
Dead with squeal from psu |
Replace Q551 2SD1427 s/c LOPTx, Q923 2SD1274 s/c, D929 15volt Zener s/c, IC
901 STR54041 &
R919 390K & R905 330K slightly hi res |
|
JVC |
C201EK |
St/by only |
Replace SBX-M904A Station Select Module £39.78 + VAT from WVE & C913, C914
and C917 in PSU |
|
JVC |
CS2190EK BXII |
Reverts to st/by aft 20 mins - 115v HT disappears |
CP901 N55 cct prot hi res |
|
JVC |
S2180M |
Field collapse |
Check UPC1488H FOP chip & supply to it - if missing, check cp IC 10NR for
o/c |
|
Matsui |
1476 |
dead & ticking |
C412 470µ 16v, C414 100µ 35v leaky & LA7837 FOP chip |
|
Matsui |
1409R |
Dead apart from quiet tripping |
R510/511 2M2 in psu o/c |
|
Matsui |
1410R Philips CTNBB |
St/by only |
Cracks around LOPTx |
|
Matsui |
2038 Onwa |
No sigs & no tuning volts |
Q608 |
|
Matsui |
2038 Onwa |
Still Dead aft replacement of C909/911 47µ |
R417 2k2 5w (line dr supply) o/c |
|
Matsui |
2180TT |
No pic - sound ok |
A1 low at 200v & focus drifts off - CRT base skt was damp/arcing at focus
conn |
|
Matsui |
28WVDP CUC2059 |
Dead - both mains fuses o/c |
T60006 chopper Tr BUZ90A s/c - caused by R60001 270k o/c |
|
Matsui |
32WV2DP CUC2058 |
St/by only |
field ic TDA8350q and
both feed res R54012 1R & R60011 33R |
|
Mitsubishi |
CT15M2TX |
Int off |
IC901 (STR54041) int |
|
Mitsubishi |
CT212STX |
Slow start up |
C962 100µ 50v o/c - corroded leg & check for dry joints esp R902/916 |
|
Mitsubishi |
CT25AV1BDS |
Service mode & EEPROM settings |
Switch on with mains switch and press service microswitch, select button 9
on the remote within 5secs. You will now be in the service mode. Use the
buttons on the remote control for the following adjustments:
* to toggle between adjustment displays
1 cancel; 2 increase adjustment code; 4 decrease data value; 6 increase
data value; 8 decrease adjustment code; 9 adjustment mode on; 0 write to the
eeprom( press this to write your changes to the eeprom)
Here are the options-
TUN 0; SAT 1; AUD 10; ATS 1; STD 1; SYS 1; AV1 2; EEX -; SPK 1; EEP
-; ABG 02; A1 02;AL 00; ADK 15; MNP 70; TXT -; FFT 1; VOL 74;HYP 1;
SCP 20; FMP 23.
not all options appear to be available to some models. Adjustments in the
VCJ mode will be in default mode and it will be necessary to observe display
in order to set-up width height e\w etc. |
|
Mitsubishi |
CT25M2 |
Field collapse & burn up around D533 |
Replace D533 BYD33G (used BYW96E in lieu) C560 2200µ 35v, C457 2200µ 35v &
IC451 AN5521 - also check caps in psu - C914, C905 etc |
|
Mitsubishi |
CT25M3TX |
Trips at sw on - ok when LOP dis'd HT correct at 145v |
LOPTr leaky - check for dry joints esp IC951 |
|
Mitsubishi |
CT28BW2BD |
Reverts to st/by at sw on |
D507 BYD33G s/c in 28v supply to FOP |
|
Mitsubishi |
EE3W |
Service mode access |
Press MENU, 2, 3, 5, 7 to access service mode, then press * (star key).
Use 2 & 8 to navigate up and down the options, 4 & 6 to alter values.
Press 0 (zero) to memorise new value & the info turns red to denote "saved".
Finally go to standby to exit menu. |
|
Mitsubishi |
Euro 10 |
No sound |
Z952 cct prot SOC2000 in psu o/c. When replaced sound ok thro' SCART but
none at RF - no sound o/p from IF chip IC101 due to L301 det coil |
|
Mitsubishi |
Euro 12 CT25A3STX |
No Txt, Nicam & wide pic |
IC702 EEPROM corrupted - check caps in pri C906/909 & sec of psu when
resetting EEPROM |
|
Mitsubishi |
Euro 12 CT29B2STX |
Field collapse |
FOP chip - comes as a kit as orig chip NLA - also check C906 47µ 63v, C909
10µ 63v, C452 220µ 35v |
|
Mitsubishi |
Euro 12 CT29B2STX |
N-S faulty |
Q4009 -30v reg on separate board near LOPTx - use BC640 in lieu |
|
Mitsubishi |
Euro 14 CT25M3LTX |
Field collapse - caused by FOP chip AN5521 which failed again shortly after
replacement |
C560 3300µ 35v in 27v supply seems to have been cause |
|
Mitsubishi |
Euro 6 CT2145BM |
No colour |
LO601 bandpass transformer |
|
NEI |
2131TX |
Int dead |
Dry joints L802 in psu - virtually invisible |
|
Nokia |
ST51A1 |
No sound |
Check mute trs VA60 & 61 sm |
|
Panasonic |
Euro 2 TX21MD1 |
No sigs |
Dry joints 82R sm resistors in tuner |
|
Panasonic |
Euro 2 TX28MD3 |
Dead apart from relay clicking at 1Hz |
C807 100µ 25v in PSU pri |
|
Panasonic |
Euro 2M TX25MD3 |
St/by only/ whistle on sound when fixed |
Q1212 BC847B blasted - when replaced set ok apart from whistle on sound
caused by audio proc chip |
|
Panasonic |
Euro 4 TX28PK2 |
Trips with relay chattering after few mins |
In overvolts mode - 150v HT gone high due to R872 dry joint |
|
Panasonic |
Euro 5 TX33PF10 |
Low unadjustable sound on AV |
Perform 'self check' by pressing "-/V" button on set & "status" button on
handset together. To exit switch off with power button |
|
Panasonic |
Euro 5 TX33PF10 |
Sound but no pic |
Perform 'self check' by pressing "-/V" button on set & "status" button on
handset together. To exit switch off with power button |
|
Panasonic |
Euro 7 TX32PG30 |
St/by only |
Reset line volts going into U1 pcb stuck halfway - being loaded by faulty sm
filter LC1118 in reset line |
|
Panasonic |
Euro2 TX25MD1 |
Dead but with psu running |
No supply to line dr as F851 1.25A o/c. 4R short across supply caused by
LOPTx |
|
Panasonic |
TX25MD4 |
reverts to st/by aft few secs |
Dry joints around FOP chip IV451 (could only be seen with magnifier) |
|
Panasonic |
TX28A2X |
Sound low & dist with crackle after using Svideo skt |
sound switching IC 301 type M52472P |
|
Panasonic |
TXW28R4 |
Trips to st/by int |
C464 220nF had a 22nF cap fitted in error |
|
Panasonic |
Z5 TC14S1R |
Dead - F801 o/c |
D807, D808 & chopper IC801 STR51203M - advisable to get original replacement
chip from Pan |
|
Philips |
14PV200/07 |
"N ACT" shows at sw on |
Switch the combi off with the mains switch. depress and hold both the wind &
rew buttons on the combi while switching back on (Keeping the buttons
pressed for around 5 seconds) Release the buttons and this should clear the
memory and allow the combi to be setup as normal |
|
Philips |
17HT5403 |
To adj sound level of this "Hotel" TV |
Press Set Up then "M" then scroll down options to vol - adj vol then press
"M" |
|
Philips |
25PT410/05 AA5AB |
Tuning drift |
C2037, a 220nF SMD on pin 44 of IC7015 (near tuner) also if not locking
check adj of AGC preset & coil L5040 near IC7015 |
|
Philips |
28PW6324/05R SA8.0E |
Dim raster with sound RGB o/p chip on crt base overheating |
Tapping crt neck brought back pic - crt faulty |
|
Philips |
29GX1995 AnubisS/BB |
Dead |
Replaced - Diode 6528 (BZX55) and 6519 (BZX55), Resistor 3503 (1.5R 7W), IC
7510 (UC3842BN) and FET 7513 (H12N60F1). |
|
Philips |
3A |
Entering service mode |
Press mono button on front of set & sleep timer/print on R/c. 4 dashes
appear, 1st 2 digits is parameter, 2nd 2 is value. |
|
Philips |
Anubis BAA |
Dead with pulsing squeak |
C2540 2200µ 16v leaky |
|
Philips |
FL1.10 28CL6770 |
Dead - LOPTr s/c |
Check for dry joints at scan coil plug |
|
Philips |
G90AE 21 GR2350 |
No sound |
IC7220 I/C sound chip TDA8191 |
|
Philips |
G90AE 21GR2350 |
Shuts down with motorboating noise aft 10 mins |
Dry joints Q7502 in FOP |
|
Philips |
GR2.1 25ST1750/05B |
Width excessive with no control |
R3585 15R near LOPTx o/c |
|
Philips |
GR2.2 |
Dead - went off with a crack |
LOPTr BU508AF s/c - no reason for its demise could be found but when
replaced, LOPTx arced destroying LOPTr again - LOPTx & LOPTr replaced |
|
Philips |
L2.2AA 29PT828C/05 |
Dead - 5A fuse in plug o/c |
Mains rect cap arcing 220µ 385v |
|
Philips |
L6.2 |
Int various - pic size, no sound & off |
R3509 47k in psu o/c |
|
Philips |
L7.3 |
Tripping |
C2550 across 9v supply leaky |
|
Philips |
MD2.25E 32PW9543/05 |
Poor definition |
Tr7140 BD140 on crt base s/c |
|
Protech |
7206NT 11AK19-8A |
E-W faulty - narrow, bowed pic |
Dry jointed & o/c C630 430nF, when replaced took the FOP chip out. R629 2R7
safety res o/c, replaced TDA8351 FOP chip & L604 shorted turns (read 0R9 -
should be approx 2R7) rewound with 393 turns - see also Bush 2871NTX |
|
Saisho |
CT149TX |
Dead with buzz from spkr |
LOPTr leaky - check for dry joints line dr trfmr |
|
Samsung |
CF5344N |
Field collapse & no sound |
12v supply to reg missing - cracks in print |
|
Samsung |
CI20520BT |
Dead - off with a bang |
C805 2n2 800v split |
|
Samsung |
CI5038Z |
Tripping with HT low at 102v instead of 125v |
SMR earthing was suspect on heatsink (new type device recently fitted) I
PSU |
|
Samsung |
CI533CN S51A |
No sigs - ok thro' SCART |
Adj in Factory setting menu - need service manual for info |
|
Sanyo |
25DN1 |
St/by only - light goes out when brought out of st/by |
R620/621 120k 2w in psu - beware of mains smoother being charged! |
|
Sanyo |
C28WN3 |
Shuts down aft 20 mins with LED flashing 3 times. Will restert if sw of/on
again but for progressively less time |
press the MEMORY button on the front panel whilst powering the set up, it
over-rides the protection circuit. R810 0R33 in psu pri was o/c but main
cause was C659 220µ (sometimes 330µ) 250v in B1 supply o/c |
|
Sanyo |
CE28WN4B |
Excess height & E-W faulty |
Fit mod kit B10H04N1C or B10H04D0L if Dolby Pro Logic set |
|
Sanyo |
CE28WN4B |
Int Cuts out with LED flashing (prot mode) |
To disable prot mode dis R648 - after a while crt heaters went out due to
dry joint |
|
Sanyo |
ED0 CBP2876A |
Dead - LOPTr Q650 2SD1556 s/c |
C605 2µ2 line dr coupler leaky was cause |
|
Sanyo |
ED1 CBP2872 |
No colour |
PVPU2204 chip |
|
Seleco |
S21B10 |
High HT at 320v instead of 125v |
check caps in psu |
|
Seleco |
S21B10 |
No sound aft hi HT fault cured |
Q601 sm s/c - used BC848 in lieu, DD601/2 o/c & 2 x sm res 1R5 o/c |
|
Sharp |
51AT-15H 5BSA |
Field collapse/ R & G lines at top of pic |
BC636 in FOP stage causes field coll & D504 1N4148 causes lines |
|
Sharp |
51DT-25H |
Lack of height, no vid & tuning drift at sw on |
NV memory mode - fit 2 x zeners D510/511 pt no EX0404BM22, fit coil Pt no
VP-CF120K0000 in place of link J122 & fit another zener D403 pt no
RH-EX0412BMZZ. (Cct ref printed on pcb) |
|
Sharp |
59DS03H |
Dead with mains fuse o/c |
Q701 chopper FET s/c RH-TX0166BM22, D712 zener RH-EX0419BM22, BUH515 LOPTr -
if stuck in st/by aft replacement Q702 BC338 in psu s/c |
|
Sharp |
66AS-05H 4BSC |
Dead - no line drive |
IC800 MC44002 jungle chip faulty |
|
Sharp |
66AS-05H 4BSC |
Dead with ticking |
LOPTr s/c due to dry joints scan coil plug |
|
Sharp |
66AS-05H 4BSC |
No E-W corr aft replacing TDA8170 FOP chip, R645 & C506 for tripping off |
Q603 2SD1913S collector base leakage, and C603 4.7uF high ESR |
|
Sharp |
66FW53H DA100 |
Constant trip |
Bypassing prot (s/c pin 15 IC702 to chassis) brought pic on with limited
functions - sm NVROM chip faulty & adj geometry settings (maunual reqd) |
|
Sharp |
70ES03S |
Dead - B+ volts ok |
replace R613 & C613 680nF 250V leaky (cause c613 dry jointed |
|
Sharp |
C3720 |
Int brill level & Height |
Dry joint reg Q604 near mains sw |
|
Sharp |
CV2131H |
Dead - no line drive |
Replace FOP IC X0640CE with equiv. LA7830 & 220mf cap. and the 4.7ohm
safety feed res by LOPTx |
|
Sharp |
DS/ES chassis |
Dead - LOPTr BUH515 s/c |
Check for dry joints C608/613 - also check Q701 2SK2605, Q702, Q703 BC338,
D712 15v zener, D713, D730 1N4148, C713 68nF & R716 0R47 or 0R22 & check
rects on sec for s/c |
|
Sharp |
DV5150 S3B |
Field top stretched |
C712 100µ 35v in 24v supply |
|
Sharp |
DV51531 S3B |
St/by only ; 5v & 12v supplies not being sw on by Q703 & Q707 |
Fusible R744 o/c - replacing it only restored 12v - check D732 & 733, one
was nearly o/c |
|
Sony |
AE1C KVA2512U |
Crackling sound & OSD flashes on/off |
Check audio o/p chip joints IC251 & 261, 5v reg IC604 (under strut) & CV1101
on A1 board - a 39pF fixed cap will do in lieu |
|
Sony |
AE2 KVE2532U |
Poor sync, mosaic & odd cols |
Dig comb filter |
|
Sony |
AE2 KVE2932U |
Excess width |
C819 470µ 16v - the -7.4v supply being poorly smoothed |
|
Sony |
AE2 KVX2962 |
Flashing LEDs from cold - A1 flash B 8 flashes |
IC684 9v reg dry joint under strut |
|
Sony |
AE5 KV28FX65U |
Pic disappears into fine mosaic aft 30 secs - sound & Txt still ok |
Dry joints sm chip IC2311 on board B1 (100Hz proc) |
|
Sony |
BE2A KVM2151U |
Dead with psu blow up |
IC601 STR54041 chopper chip (use genuine), Q601 BC637-16, R601 3R3 10w, R611
120k & F601 |
|
Sony |
FE1 KV25K5U |
Dead with LED flashing 4 times |
Check for 9v at pins 33 & 34 IC301. If present, check R546 47R 1/2w for o/c
(135v Line dr supply) |
|
Sony |
KV2162U AE1C |
Int start up |
Mains smoothing cap |
|
Sony |
KV25K5U FE1 |
Int reverts to st/by with LED flashing 5 times |
CRT internal s/c - replaced under guarantee - very prone to this fault
apparently |
|
Sony |
KV25K5U FE1 |
No R/C op - hset ok |
D011 5v6 zener on o/p of Rx leaky |
|
Sony |
KV29FL1U |
Tripping with LOPTr Q802 s/c |
Dry joints R816 1k 3w & around line dr trfmr |
|
Sony |
KVX2152U |
No/Poor start |
C611 47uf and C614 220uf Caps |
|
Tatung |
180 |
Int off when prodded |
Dry joint pin 15 MN001connector (line dr supply) |
|
Tatung |
A series |
Dist mono pic line shifted & rolling |
TDA2579A line/field chip faulty |
|
Tatung |
B1 chassis |
Lack of width & incorrect line freq |
Corrupt EEPROM - to reset, move jumper pl PL704 to enter service mode - see
tv Jan 2002, caused by R814 75k in psu gone high or faulty degauss therm |
|
Tatung |
D Series T21TD50 |
No Green |
R932 100k on crt base o/c - could happen to other cols (R922 & R912) |
|
Tatung |
E series |
Only top half of pic showing |
shorted turns L409 E-W loading coil had damaged IC401 TDA8350Q - replace
both items |
|
Tatung |
F series |
Comes on with no G then reverts to prot mode - dead with st/by LED flashing |
R913 o/c, R922, R903 hi res (all 180k on crt base) |
|
Thomson |
ICC17 |
EW faulty |
DL22 BYW76 leaky, TL41 BD241C driver u/s, TL42 BC546B u/s, s/c across DL42
caused by IV01 64 pin sm TDA8855H jungle chip |
|
Toshiba |
145E7B |
Dead - low HT |
T802 chopper trfmr sus (not cheap) |
|
Toshiba |
145E7B |
Dead D808 SR2M overvolts diode s/c |
STR50020 chopper chip, C813 47µ 63v |
|
Toshiba |
2512DB |
EW faulty |
Check all elects on stand up EW panel |
|
Toshiba |
255R7B |
Line phase int - hor pic shift |
Dry joints TDA2579 timebase chip pins |
|
Toshiba |
2573/2873DB |
Excess width & no E-W |
Q302 TA8859 chip |
|
Toshiba |
258T7B |
Corrugated verts |
C820 470µ 15v |
|
Toshiba |
258T7B |
Loud screeching at sw on - fades out when warm |
12v supply to audio sect high - C866 & C869 10µ 50v |
|
Toshiba |
259D9B |
Int loss of sync |
Dry joints ICF01 IC on Txt panel |
|
Toshiba |
2873DB |
Width lacking & E-W faulty |
Q302 TA8859 chip - note suffix when replacing |
|
Toshiba |
28W8DBA |
Int off with led flashing & no red |
CRT internal s/c - replaced under guarantee |
|
Toshiba |
28W8DBA C7SS |
St/by only with R & G LEDs flashing - was orig int start up |
dry joint on (+9V-1) reg tr Q420on sigs board next to IF unit. Overriding
the protection by unsoldering pin 16 of Z801 broght the set to life with a
narrow frame collapse 3/4 of the way up the screen |
|
Vestel |
11AK19 |
White raster with fb lines |
IC901 TDA6107Q vid o/p chip & R914 200v feed res o/c |
|
Vestel |
11AK20 |
No pic - OSD OK |
Replace EEPROM |
