TV
Repair Database

|
Mitsubishi |
EE2 |
black line down lh side |
R571 560R 1w o/c |
|
Mitsubishi |
EE3 |
Bank raster/no sound - OSD ok |
Z953 1.6A cct prot. Has been uprated to 3.15A in sets incorporating sat Rx |
|
Mitsubishi |
EE3 |
Crushed whites |
Q952 8v reg dry joints |
|
Mitsubishi |
EE3 |
Dead |
AVN5-KIT is available when Q552 has gone s/c - includes R713 1k, R726 5k6,
Q552 2SD1556, Q901 S2000N, R508 3k9 5w, R991 4R7 10w, D909 RD3.0FB2 zener,
an additional cap C720 22pf |
|
Mitsubishi |
EE3 |
Dead |
Cct prot o/c - uprated to 3.15A from 2A also could be start up res R915 15R
2W, R922, R921 & R902 22k 2w |
|
Mitsubishi |
EE3 |
Dead - LOP tr S2055N leaky then no line dr |
Q551 fully conducting, Q501 JC501-R u/s |
|
Mitsubishi |
EE3 |
Dead - Q552 s/c due to high hT |
C914 47µ 35v o/c |
|
Mitsubishi |
EE3 |
Dead apart from flashing red/green LEDs |
C955 1000µ 16v |
|
Mitsubishi |
EE3 |
Dead- initially long time to come on |
C914 47µ 35v, C955 1000µ 16v |
|
Mitsubishi |
EE3 |
Dead; 2A fuse blown violently & chopper Q901 s/c |
Replace Q901 S2000N, IC901 TEA2261, Opto coupler PC951 TCDT1124G. Check D909
zener RD3.0FB2 & R908 0R33 2w & R909 0R22 2w |
|
Mitsubishi |
EE3 |
Green LED lit - no other activity |
HT secondary supplies ok- no line drive. IC702 EEPROM may need reprog |
|
Mitsubishi |
EE3 |
grey scale varies |
CRT bias request bit could not be set to 00 with G2 control - not IC201 dec/tbase
gen chip.Cured by replacing TEA5101 RGB o/p chip & diodes D655/6/7 1N4148 on
crt base |
|
Mitsubishi |
EE3 |
Lock up & memory problems |
Replace C955, C702 & R3D68 also change value of R702, R213 & R214 to 1k ¼w |
|
Mitsubishi |
EE3 |
long time to come on |
C955 2200µ for 11.5v supply |
|
Mitsubishi |
EE3 |
Low contrast, smeary, f back lines |
R686 on crt base (1k8) |
|
Mitsubishi |
EE4 |
Dead or int dead - brief flash of green led at sw on |
Dry joints opto isol PC951 |
|
Mitsubishi |
EE4 |
Trips once at sw on - ok on dummy load |
TEA5101B RGB o/p chip IC660 s/c |
|
Mitsubishi |
EE4 (M5 models) |
To enter service mode |
Press & release S701 next to aerial socket, then press "9" on hset within 5
secs. Buttons 2 & 8 select adj code, buttons 4 & 6 adj data value. Button 1
cancels written data, button 0 stores data into EEPROM see article TV Jan 99
for more details |
|
Mitsubishi |
Euro 1 |
Diagonal pattern of dots across screen |
R914 100R in psu snubber cct o/c |
|
Mitsubishi |
Euro 10 |
Black lines , poor sync, no txt (until warm) |
C959, 962 100µ |
|
Mitsubishi |
Euro 10 |
Dead |
C905 470µ 25v |
|
Mitsubishi |
Euro 10 |
Dead - Q901 chopper tr blows at sw on |
D909 3v zener s/c was the cause; also replaced R901 4R7 5w, IC901 TEA2164 |
|
Mitsubishi |
Euro 10 |
dead psu runs |
several electrolytics in psu leak electrolyte onto plug PB causing o/cs |
|
Mitsubishi |
Euro 10 |
Field jitter - int |
Dry joint R461 |
|
Mitsubishi |
Euro 10 |
Field lin faulty when cold |
Glue around pins of IC501 |
|
Mitsubishi |
Euro 10 |
HT low |
Q953 JC501Q error amp |
|
Mitsubishi |
Euro 10 |
int dead (could be ok for days) |
Same on dummy load proving psu fault. Opto coupler driver tr Q953 was to
blame. BC547 suitable replacement |
|
Mitsubishi |
Euro 10 |
Int dead esp from cold |
C905 220µ, C906 47µ C912 4µ7 in psu |
|
Mitsubishi |
Euro 10 |
Int loss of sound & pic |
Check vid I/p & o/p at AV sw chip IC2A2 M5132P - if no o/p either off air or
scart this chip is sus; if o/p with scart but not off air sus Q2A2. If no
pic but sound ok check Q104 |
|
Mitsubishi |
Euro 10 |
Int sw on from cold |
C905 470µ 25v in start up cct |
|
Mitsubishi |
Euro 10 |
Loses analogue memory when sw off |
The -30v to IC702 memory chip low due to C962 100µ 50v |
|
Mitsubishi |
Euro 10 |
Loud whistle from psu - set operates ok otherwise |
Q902 |
|
Mitsubishi |
Euro 10 |
No pic - OSG & sound ok |
No 5v reg supply to VIP & CCT chips as Z951 630mA cct prot o/c |
|
Mitsubishi |
Euro 10 |
No sound |
Q952 2SA950-Y leaky |
|
Mitsubishi |
Euro 10 |
No sound |
No lt supply to audio chip - Q952 2SA950 o/c; BC640 used in lieu |
|
Mitsubishi |
Euro 10 |
No sound/pic - no memory & slow R/C response |
IC702 EEPROM chip ST24C02A |
|
Mitsubishi |
Euro 10 |
not memorising user prefs |
C962 100µ on -30v supply |
|
Mitsubishi |
Euro 10 |
Patterning - clears with a bang on cabinet |
IC902 12v reg faulty |
|
Mitsubishi |
Euro 10 |
pic fluctuate after few secs |
HT low at 107v (112v) C906 47µ 25v also replaced C905 |
|
Mitsubishi |
Euro 10 |
Poor contrast |
Q704 JC501 blanking tr on main pcb |
|
Mitsubishi |
Euro 10 |
Popping noise fro speakers in st/by ; 20v supply not being sw off |
Q5951 JC501-Q faulty or dry jointed, Q952 2SA950-Y, R954, R974 or R985 can
also be responsible |
|
Mitsubishi |
Euro 10 |
Sound dist |
IC361 AN5264 audio o/p chip dry joints |
|
Mitsubishi |
Euro 10 |
St/by only after being int for previous 2 days |
Dry joints LOPTr Q552 2SD1878 |
|
Mitsubishi |
Euro 10 |
Switches off immediately after powering up |
Check PC951 opto coupler |
|
Mitsubishi |
Euro 12 |
Black box appears on screen &/or no TXT |
C958 1000µ 16v in 5v supply |
|
Mitsubishi |
Euro 12 |
Blue excessive (or Green/Red) |
D656 leaky on crt base ( or D655, D657) |
|
Mitsubishi |
Euro 12 |
Contrast low with fb lines |
IC251 pin 7 only 1.2v instead of 2.9v; 12v line low as Q704 leaky |
|
Mitsubishi |
Euro 12 |
Dead |
Q552 2SD1878 s/c; R901 4R7 10w o/c |
|
Mitsubishi |
Euro 12 |
Dead - blows Q901 |
C906 47µ 50v |
|
Mitsubishi |
Euro 12 |
Dead - Chopper Q901 & lop tr Q552 u/s |
Q901 serv kit fitted & Q552 2SD1878 also C905 470µ 35v, C906 47µ 50v, C909
2µ2 50v, C920 100µ 25v |
|
Mitsubishi |
Euro 12 |
Dead - LOPTr s/c due to High HT |
Check R961 150k & C906 47µ 50v & IC950 |
|
Mitsubishi |
Euro 12 |
Dead - off with bang |
C906 47µ 63v, Q901 2SD1887, R901 4R7 10w, IC901 TEA2261, D907/8 RD3.0FB1,
C920 100µ 63v - C975 47µ 63v was the cause |
|
Mitsubishi |
Euro 12 |
Dead apart from 3 chirps at sw on |
LOPTr 2SD1878 s/c also replaced C956 47µ in psu |
|
Mitsubishi |
Euro 12 |
Dead or Int reverts to st/by - LOPTr Q522 fails periodically - possibly due
to high HT |
C906 47µ 50v drive coupling cap - also check C905 470µ 35v, C909 100µ
25v,C920 100µ 25v, R961 150k, R972, R960, D907 RD3.0 s/c & IC950; Q522 =
2SD1877 (21"), 2SD1878 (25"), 2SD1879 (29") |
|
Mitsubishi |
Euro 12 |
Dies at sw on with squealing |
C956 1000µ 35v, C958 1000µ 16v, C964 1000µ 50v leaky & dry joints & IC551
(e/w chip) & TEA2031A damaged |
|
Mitsubishi |
Euro 12 |
Excess width |
TEA2031A |
|
Mitsubishi |
Euro 12 |
Excess width, bowed verts & pic shifted sideways |
Low amp H SYNC fback pulse from LOP - D559 1N4148 s/c - check for dry joints
LOPTx |
|
Mitsubishi |
Euro 12 |
Field collapse |
No 28v to TDA8178S - R976 0R82 in psu o/c |
|
Mitsubishi |
Euro 12 |
Field collapse |
Replace chip - must be same suffix - use Phoenix repair kit from Grandata |
|
Mitsubishi |
Euro 12 |
Field collapse |
Replace TDA8178S & check C956 1000µ 35v, C452 220µ 25v & HT - Mitsi mod kit
2 available from Grandata (cheaper) |
|
Mitsubishi |
Euro 12 |
Field collapse |
IC451 TDA8178S (must use correct one or foldover occurs if TDA8178FS is used
- very expensive!) Also check C452 220µ 35v & 122v HT at TP91 |
|
Mitsubishi |
Euro 12 |
Freq blows SD1887 sw mode transistor |
Mod kit avail from WVE (Q901 modkit) & change TEA2261 |
|
Mitsubishi |
Euro 12 |
High HT - should be 120v |
C906 47µ 50v, C909 2µ2 50v & 2 x 3v zener diodes D907 & 908 |
|
Mitsubishi |
Euro 12 |
Hum in st/by & no degaussing |
C960 1000µ 35v in 24v supply |
|
Mitsubishi |
Euro 12 |
Int blows Q552 |
Dry joints T551 |
|
Mitsubishi |
Euro 12 |
Int Field foldover/lack of height - Low HT at 87v |
No set HT control, crack in print between base Q952 & R956/7 junction |
|
Mitsubishi |
Euro 12 |
Int Nicam crackling - tuner drift |
Dry joints IF unit esp on SAWFs & coils |
|
Mitsubishi |
Euro 12 |
Int sound/pic - comes & goes with a tap |
Dry joints IF can |
|
Mitsubishi |
Euro 12 |
Int sound/pic - comes & goes with a tap |
Dry joints VIF module |
|
Mitsubishi |
Euro 12 |
Lines on pic with whistling |
C956 2200µ 16v in psu |
|
Mitsubishi |
Euro 12 |
Luminance int |
Q202 J501Q |
|
Mitsubishi |
Euro 12 |
No audio pback from mono VCR or sat Rx |
IC702 EEPROM (new one needs reprog) or get kit IC702-KIT; pt no of chip =
263P434020 |
|
Mitsubishi |
Euro 12 |
No signals aft 5 mins |
Dry joints 4Mhz Xtal in prescaler |
|
Mitsubishi |
Euro 12 |
No signals or tuning |
Check IC955 30v reg or feed res R951 - could also be C102 0µ01 25v |
|
Mitsubishi |
Euro 12 |
No sound/pic red led then green one come on & both then go out |
D909 4v3 zener |
|
Mitsubishi |
Euro 12 |
No Txt & pic shifted to one side |
IC702 EEPROM (new one needs reprog) or get kit IC702-KIT - pt no of chip =
263P434020 |
|
Mitsubishi |
Euro 12 |
North/South distortion |
Q4009 2SA950 on N/S correction panel |
|
Mitsubishi |
Euro 12 |
Pic int lost |
Q702 JC501QR faulty in micro's cct - BC182L works ok in lieu |
|
Mitsubishi |
Euro 12 |
Pic too large - no Txt or Nicam - happens aft blow up repair |
Mod kit IC702 reqd (IC702 & 2 x 6k8, 1 cap) |
|
Mitsubishi |
Euro 12 |
PSU blew again aft rebuild |
ZD908 3v zener s/c (In parallel with 2 x 0R25 res) |
|
Mitsubishi |
Euro 12 |
Rolling/Unstable pic |
12v supply high at 15v - D958 1N4148 (pins 4 & 5 of reg IC951) |
|
Mitsubishi |
Euro 12 |
|