| Mitsubishi |
CT21M5B |
Failure of
Q552 |
Order &
fit AVM5KIT |
| Mitsubishi |
CT21M5B |
Under very
poor signal conditions "Herringbone" pa |
Fit
specially screened RF lead
between VCR & TV PtNo H24P001010 |
| Mitsubishi |
CT21M5B CT25M5B |
Tuning drift
mainly at top end of band |
Add ( 180K ) &
Diode ( IN4148 )
in series cathode of diode to 5V pin 6 Tuner & res to Tuning
Voltage line pin 2 |
| MITSUBISHI |
CT21M5BT |
DEAD OR INT
START UP |
CHECK R704
FOR O/C SOMETIMES MARKED R703 ON PCB |
| Mitsubishi |
CT21M5BT |
DEAD OR INT
START UP |
CHECK R704
FOR O/C |
| Mitsubishi |
CT2206 |
Dead - HT
present at LOP |
Big fusible
resistor above LOP Tr sprung open - no other ff |
| Mitsubishi |
CT2206 |
Frame height
& poor line convergance intermit |
DJ on earth
pin of convergence pot. |
| Mitsubishi |
CT2206 |
Frame
-height reduced & poor line convergance |
DJ on earth
pin of convergence pot. |
| Mitsubishi |
CT2206B |
Sound -
intermittent. |
DJ on A352/3
, VR371 ( tone ) |
| Mitsubishi |
CT2206B |
Tuning
drift. |
Q7B5 ( 2SC711A ) |
| Mitsubishi |
CT2207 |
Frame
bounce. |
C403. |
| Mitsubishi |
CT2223B |
FIELD BOUNCE
or collapse |
C412 C413
330mfd |
| Mitsubishi |
CT2227 |
Dead - chan
display & relay click only |
Dry joints
T571 |
| Mitsubishi |
CT2227BM |
Dead - int
dead |
Dry-joints
on line driver transformer |
| Mitsubishi |
CT2227BM |
field
collapse with burning smell |
C412 330µ
and C413 |
| Mitsubishi |
CT2227BM |
No sound or
raster. |
R7A0 ( 1.2ohm ) o/c
on remote panel. |
| Mitsubishi |
CT2227BM |
Reduced
height. |
Dry-joints
on line driver transformer |
| Mitsubishi |
CT2227BM |
Standby -
switching to standby. |
IC7A0 ( M50124P ) |
| Mitsubishi |
CT2227M |
St/by only -
no relay op |
R7A0
1R2 1/2w |
| Mitsubishi |
CT2230TX |
NO SOUND |
R371 2R2 OC |
| Mitsubishi |
CT2525 |
Int dead esp
when cold |
C906 47µ
25v, C905 220µ 25v, C912 4µ7 50v |
| Mitsubishi |
CT2525 |
Int various
inc no start up, display/analogue settings int |
Check
electrolytics in psu esp C956, C959, C962, & C964 |
| Mitsubishi |
CT2525 |
No Sound/pic
with int trip - HT low |
Z951 630mA
fuible link |
| Mitsubishi |
CT2528 |
DEAD POWER
SUPPLY OUTPUT LOW |
C689 ( 2 , 200uF ) SC
IN AUDIO SUPPLY CCT |
| Mitsubishi |
CT2531 Euro 4 |
Black dots
& dashes. |
Drys on pin
3 earth of IC902 12v reg in PSU. |
| Mitsubishi |
CT2531BM Euro
4 |
AFTER
REPLACING STR59041 FOUND ODD EFFECT AS IF TO |
C908 10mfd
100v |
| Mitsubishi |
CT2531BM Euro
4 |
DOTS &
DASHES NOT UNLIKE SATELLITE EFFECT! |
DRY JOINT
IC902 12v REG |
| Mitsubishi |
CT2531BM Euro
4 |
INTERFERENCE
ON SCREEN LIKE BLACK SPARKLIES OR WOO |
IC902 DRY
JOINTED OR C920 470uF 25v |
| Mitsubishi |
CT2531BM Euro
4 |
Line TR s/c |
Replace C908
( 10uF ) 100V &
check R903 R910 R917 for D/J |
| Mitsubishi |
CT2531BM Euro
4 |
No raster -
sound & heaters Ok. |
|
| Mitsubishi |
CT2532TX |
Dead - line
transistor checks Ok out of cct. |
LOPTX s/c bt
pins 2 & chassis. |
| Mitsubishi |
CT2534 |
Memory loss |
Chopper tfmr
-31v supply corrosion on leg |
| Mitsubishi |
CT2534TX Euro
4 |
NO SOUND OR
PICTURE + WON'T STORE STATIONS |
CHECK 5v +
-30v ON IC702 TRANSFORMER T951 MAYBE O/C ON PINS 4+2 |
| Mitsubishi |
CT2553 |
Ghosting or
ringing. |
Drys around
the SAW filter or coils L4/5 , if not mod kit AFT1 mits |
| Mitsubishi |
CT2553 |
Int blank
raster. |
Drys around
the SAW filter or coils L4/5 , if not mod kit AFT1 mits |
| Mitsubishi |
CT2553STX |
INT
LUMINANCE |
CHECK FOR
HARDENED GLUE on decoder print side |
| Mitsubishi |
CT2553STX |
WONT START ,
NO STBY LED , STBY PIN
MICRO GOES LOW , |
MEM IC
FAULTY |
| Mitsubishi |
CT2553STX
CT255 |
Can not
select Text : when cold will go into Text |
Replace C922
& C923 ( 100uF ) |
| MITSUBISHI |
CT2554TX |
DEAD |
REPLACE Z902 |
| Mitsubishi |
CT2554TX |
DEAD |
REPLACE Z902 |
| Mitsubishi |
CT2555 |
Ghosting or
ringing. |
Drys around
the SAW filter or coils L4/5 , if not mod kit AFT1 mits |
| Mitsubishi |
CT2555STx |
Int sound
& pic at sw on |
C923 100µ
10v in psu |
| MITSUBISHI |
CT2555STX |
NO LUMINANCE |
R286 O/C
100OHM |
| Mitsubishi |
CT2555STX |
NO LUMINANCE |
R286 O/C
100OHM |
| Mitsubishi |
CT2555STX |
PICTURE
WOBBLE / LINE TEARING TYPE FAULT |
CHECK FOR
DRY JOINTS AT LOPT SCREEN WHERE IT CONNECTS TO PRINT |
| Mitsubishi |
CT2555STX |
Very weak
luma with flaring. |
Clean glue
off luma /chroma board &
reconnect gap
left in tracks. |
| Mitsubishi |
CT25A2STX |
COLOUR SUB-CAIER
OFF SPEED |
C604 OPEN |
| Mitsubishi |
CT25A2STX |
Cuts off
totally 5 secs aft switch on keep
pressi |
Measure
H.T if rises up to 180V then back to 145V replace C906
( 47uF ) |
| Mitsubishi |
CT25A2STX |
Dead - Q901
s/c. |
Fit mod kit
( wVe 77901 ) R901 , D908 , Q901 , C908 to 2700pf , C966. |
| Mitsubishi |
CT25A2STX |
DEAD-INT. |
Q501 LOW
GAIN |
| Mitsubishi |
CT25A2STX |
NO GO RED
LED COMES ON THEN GREEN LED THEN BOTH GO |
D909 4.3v
ZENER |
| Mitsubishi |
CT25A2STX |
SOMETIMES
TRIPS WHEN BROUGHT OUT OF SBY ( HT RISIN |
C609 47mfd |
| MITSUBISHI |
CT25A4STX |
DEAD |
REPLACE
TEA2261, D909 AND Q552 |
| Mitsubishi |
CT25A4STX |
DEAD |
REPLACE
TEA2261, D909 AND Q552 |
| MITSUBISHI |
CT25A4STX |
NO SOUND,
TEXT OR NICAM |
FIT IC702
KIT |
| Mitsubishi |
CT25A4STX |
NO SOUND,
TEXT OR NICAM |
FIT IC702
KIT |
| Mitsubishi |
CT25A4STX
CT29A |
DEAD , NO LINE DRIVE ,
CHECK FOR MOMENTARY VERY low |
REQUIRES
FEEDBACK FROM LINE STAGE OR WILL SHUT DOWN. O.C. PIN , CHECK FOR VERY LOW
AMPLITUDE PULSE , ON SCOPE ,
REPLACE DRIVE TRAN |
| MITSUBISHI |
CT25A5STX |
DEAD |
REPLACE C914
47MFD35V AND C905 470MFD25V |
| Mitsubishi |
CT25A5STX |
DEAD |
REPLACE C914
47MFD35V AND C905 470MFD25V |
| MITSUBISHI |
CT25A5STX |
FRAME
COLLAPSE |
REPLACE
IC451 AN5521 AND/OR C454 100MFD35V |
| Mitsubishi |
CT25A5STX |
FRAME
COLLAPSE |
REPLACE
IC451 AN5521 AND/OR C454 100MFD35V |
| Mitsubishi |
CT25AV1 EE3 |
Dead - LOPTr
leaky |
TEA2031A E/W
corr chip s/c |
| Mitsubishi |
CT25AV1 EE3 |
Dead - no
line drive |
Q501 JC501-R
faulty - 2SC1815 used as replacement |
| MITSUBISHI |
CT25AV1B |
INT NO SOUND |
REPLACE
REGULATOR MOD KIT AND IC202 |
| Mitsubishi |
CT25AV1B |
INT NO SOUND |
REPLACE
REGULATOR MOD KIT AND IC202 |
| Mitsubishi |
CT25AV1BS |
No sound -
pic ok |
reset eeprom
settings from infomation provided by Darren Hoskin & Graham Cooke |
| Mitsubishi |
CT25AVIBDS |
Slow
startup. |
Change C955
( 2200uf ) |
| Mitsubishi |
Ct25B2STX |
buzz on
sound - flat pic |
0.47µ 50v
electrolytic in if and dry joints in if |
| Mitsubishi |
CT25B2STX |
Dead - Q901
s/c. |
Fit mod kit
( wVe 77901 ) R901 , D908 , Q901 , C908 to 2700pf , C966. |
| Mitsubishi |
CT25B2STX |
Field
collapse - replacement of FOP chip |
When
replacing failed IC451 TDA8178S check elects in field & psu ccts; note
TDA8178 nla - use TDA8171 & mod kit usually supplied with it |
| Mitsubishi |
CT25B2STX |
FIELD
COLLAPSE , NO 30V RAIL |
IC551 ( EW
) & R976 , ALSO
CHECK Z551 |
| MITSUBISHI |
CT25B2STX |
FRAME
COLLAPSE |
REPLACE
IC451 |
| Mitsubishi |
CT25B2STX |
FRAME
COLLAPSE |
REPLACE
IC451 |
| Mitsubishi |
CT25B2STX |
Nicam
dropout with crackling |
Dry joints
IF unit |
| Mitsubishi |
CT25B2STX |
No sound |
Format
EEPROM as per manual |
| Mitsubishi |
CT25B3STX |
Pic blanks
out into a small square |
replaced
C965,C970,C987,C974,C718. |
| Mitsubishi |
CT25M1 |
Juddering
raster |
C906 4µ7
25v chopper dr cap |
| Mitsubishi |
CT25M1STX |
BLANK/NO
VIDEO |
Q702 JC501 |
| Mitsubishi |
CT25M1TX |
Dead - psu
working |
crack in
print coll of lop tr - also change C906 47µ, C905 470µ |
| Mitsubishi |
CT25M1TX |
Field roll
int & bent verts |
C906 47µ
25v in psu |
| Mitsubishi |
CT25M1TX |
HORIZONTAL
LINES ON SCREEN AND WHISTLING |
C956 2200uF
16v |
| Mitsubishi |
CT25M1TX |
INT BLANK
SCREEN+NO SOUND |
IC2A2 Q2A2 AUDIO ONLY Q104 |
| Mitsubishi |
CT25M1TX |
INT LOSS OF
S/V , CHECK FOR VIDEO IP. AND OP. AT
AV |
IF THERES AN
OP. WITH SCART BUT NOT RF , SUSPECT Q2A2
JC501-QR PtNo 266P064010 IF NO PIC BUT SOUND OK CHANGE Q104 JC501. IF U |
| Mitsubishi |
CT25M1TX |
LOW CONTRAST
AND FLYBACK LINES |
Check for
2.9V at pin 7 IC251 if low Q704
u/s |
| MITSUBISHI |
CT25M1TX |
MOTOR
BOATING IN STANDBY |
REPLACE Q951
IN POWER SUPPLY |
| Mitsubishi |
CT25M1TX |
MOTOR
BOATING IN STANDBY |
REPLACE Q951
IN POWER SUPPLY |
| Mitsubishi |
CT25M1TX |
No pic -
sound ok |
Loss of 5v
to txt dec. Z95 cct prot 630mA in psu o/c |
| Mitsubishi |
CT25M1TX |
WEAK VIDEO
NO SYNC |
Q104 JC501
LEAKY-VIDEO AMP |
| MITSUBISHI |
CT25M2TX |
EXCESSIVE
WIDTH WITH BENT VERTICALS |
CHECK FOR
DRY JOINTS ON C558 WHICH CAUSES IC5E1 AND L555 TO FAULT |
| Mitsubishi |
CT25M2TX |
EXCESSIVE
WIDTH WITH BENT VERTICALS |
CHECK FOR
DRY JOINTS ON C558 WHICH CAUSES IC5E1 AND L555 TO FAULT |
| Mitsubishi |
CT25M2TX |
OK at sw on
then no osg aft 30sec. Aft 5mins blank raster for 10sec on chan change or
adj Vol |
If freezing
field chip IC454 AN5521 works ok - chip faulty |
| Mitsubishi |
CT25M3 |
Slow
response to front & R/C commands |
Resolder
Xtal on Txt panel |
| Mitsubishi |
CT25M5B |
Failure of
Q552 |
Order &
fit AVM5KIT |
| Mitsubishi |
CT25M5B |
Under very
poor signal conditions "Herringbone" pa |
Fit
specially screened RF lead
between VCR & TV PtNo H24P001010 |
| MITSUBISHI |
CT25M5BT |
E/W
DISTORTION, LACK OF HEIGHT |
REPLACE
EEPROM IC |
| Mitsubishi |
CT25M5BT |
E/W
DISTORTION, LACK OF HEIGHT |
REPLACE
EEPROM IC |
| Mitsubishi |
CT25M5BT |
Sound, no
raster |
Replace Q6E7
(JC501-R) on the tube base panel
(part of the spot-killer circuit). It had a B-E leak and was failing to
turn on Q6E8 (2SA950-Y) which in turn robbed the 12 volt feed to pin 2 of
the CRT driver chip IC660 (TEA5101B). |
| Mitsubishi |
CT25MSTX E14 chassis |
Dead - st/by
led lights briefly at sw on |
dry joints
on IC951.
Drys were also found on regulators IC952, IC954 & IC955. |
