|
Toshiba |
261S4B |
Width - excessive. |
R371. |
|
Toshiba |
261T4B |
Dead. |
R803 ( 6K2 , 7W ) o/c. |
|
Toshiba |
261T4B |
LINE OP TRANSISTOR SC AFTER REPLACING NO PICTURE L |
R481 2R4 OC |
|
Toshiba |
2805 , 2527 |
DOLBY SOUND FAULT |
SEE Toshiba TEC BULLETIN |
|
Toshiba |
2805DB |
BLANK RASTER , NO SOUND , NO REMOTE FUNCTIONS |
CHECK QV22 FOR DRYS ON BACK TERMINAL PCB |
|
Toshiba |
2805DB |
Dead - all volts & LED come on then fade out |
Tfmr T803 faulty |
|
Toshiba |
2805DB |
Dead - sound o/p chip had exploded |
Sound chip & chopper trfmr reqd |
|
Toshiba |
2805DB |
Field - only half a scan & patterning |
C317 2µ2 63v |
|
Toshiba |
2805DB |
FIELD COLLAPSE WITH 4-5 FLYBACK LINES ABOVE THE LI |
IC371 TA8739P Pt No BO383680 |
|
Toshiba |
2805DB |
Field fault - reduced height |
C372 (2.2mfd 50v), it's mounted on the underside of IC Q371
(TA8739P) located at the front right of the main PCB |
|
Toshiba |
2805DB |
INT PICTURE DISAPPEARS SCREEN GOES TO BLUE MUTE |
XTAL IN TUNER PRESCALER DRY |
|
Toshiba |
2805DB |
Motorboating sound in st/by |
The cause is poor earthing of the black anodised heatsink for
IC609/IC610. |
|
Toshiba |
2805DB |
NO PIC , SOUND , REMOTE , BLUE SCREEN |
QV222 ( AV BOARD ) DRY |
|
Toshiba |
2805DB |
Pic cuts out leaving blue screen |
Dry joints tuner (Xtal) |
|
Toshiba |
2805DB |
Watermark moves down screen & lack of width |
C424 4µ7 |
|
Toshiba |
2805DBT |
Flashing lines across screen when heated (4-5 hrs) |
Cooling tuner stops the flashing - tuner faulty |
|
Toshiba |
2805DBT |
INT MOTORBOATING FROM ALL SPEAKERS IN SBY . CHECK |
MOVE GREEN WIRE FITTED BETWEEN SOCKET M002A PIN C AND M002B PIN C TO FIT
BETWEEN M002A PIN C AND ADJACENT TINNED SUOUNDING |
|
Toshiba |
2806XH |
Colour intermitt & int blue sheen |
Dry joint C509 in series with 4.43Mhz Xtal |
|
Toshiba |
2812 |
INT TRIPPING |
GROUND PIN 52 OF IC501 |
|
Toshiba |
2812DB |
Brightness excessive - reducing G2 on loptx gives slightly out of focus pic |
LOPTx faulty |
|
Toshiba |
2812DB |
Dead |
CHECK SOUND O.P. IC. |
|
Toshiba |
2812DB |
DEAD , LOW O.P. FROM P.S. LOOKS LIKE ITS ON S.BY |
CHECK D830 OPTO. , IC833 |
|
Toshiba |
2812DB |
Horiz band of lines 3" thick |
C313 220µ 25v |
|
Toshiba |
2812DB |
Lack of width & line tearing |
C424 4µ7 100v in EW mod o DPC board fallen in value |
|
Toshiba |
2812DB |
Pic shift to left & Q422 on DPC pcb overheats |
Dry joint D440 also replaced Q845 st/by tr |
|
Toshiba |
2812DB |
To enter service mode |
.Push the "F" & Scart select buttons (red button with arrow though it)
together and quickly enter 1048 on remote key pad.
Hold the "F" button until "M" appears at Top right corner of screen.
Select Function with green fast text button & adjust with Volume Up/Down
Buttons
Finally store new settings by putting set into standby. |
|
Toshiba |
2812DBT |
Dead & squealing |
Loptx overheating - shorted turns |
|
Toshiba |
2812DBT |
Electronic screwdriver settings |
Press "F" & "Vid I/P" together to enter menu then selected code '1048'.
After few secs "M" appears. Hold "F" & "Pic Menu" buttons to scrollup menu.
"F" & "Sound cont" to scroll down. "Vol+/-" buttons adj settings. Use St/by
button to store at end. |
|
Toshiba |
2812DBT |
Pic present in st/by (sound muted) |
Q845 2SC2023 HT sw tr s/c c-e |
|
Toshiba |
2812DBT |
Poor pic geometry & lack of height/width |
electronic screwdriver settings reqd - see database |
|
Toshiba |
2812DBT |
Width narrow |
C372 2µ2, C424 4µ7 100v on DPC board (rear right) |
|
Toshiba |
2812DTB |
Rolling & black band across screen - when heated |
IC501 TA8783N |
|
Toshiba |
2835DB |
DEAD , POWER SUPP IN OVERVOLTS MODE , 11v HT INSTEAD |
CHECK IC670 , D670 - 675. TA8218AH ( VOLTS AT PIN 9 OF IC801 VARY ,
5-8v. OP VOLTAGE CONTROL LOOP INOPERATIVE AS IC826 HAS NO S |
|
TOSHIBA |
2835DB |
INT BLACK LINES WHEN COLD |
REPLACE C908 270MFD400V |
|
Toshiba |
284T8B |
WON'T STOP WHEN ON CHANNEL SEARCH CHECK PIN 9 QAO1 |
IF MISSING TRY D172 OR POSSIBLY TUNER |
|
TOSHIBA |
2855DB |
CHANNEL NUMBERS AND NICAM ON SCREEN INT |
REPLACE IF MODULE |
|
Toshiba |
2855DB |
Excess height |
R323 0R56 gone low in value |
|
Toshiba |
2855DB |
no sound or vision, just an overscanned blank raster with no OSD. |
Replace fuselink ZP82 and tuner. A new tuner was available from WVE for a
reasonable ukp25 + vat. |
|
Toshiba |
2857DB |
Blue screen - no sound - ok on scart |
Tuner faulty |
|
Toshiba |
2857DB |
NO COLOUR AT SWITCH ON |
REPLACE X503 |
|
Toshiba |
2857DB |
Tripping |
D609 5v6 zener s/c & STRS6709 |
|
Toshiba |
285T5BZ |
Stuck in standby. |
IC801 TDA4601 + change R818 to 15k , C845 ( 100uf ) |
|
Toshiba |
285T8 |
Blank raster, no sound, no leds or r/c op |
Sub psu non operation due to C832 330pf 2kv pinhole (snubber) |
|
Toshiba |
285T8B |
FRAME COLLAPSE |
REPLACE C313, IC303, R327 AND D305 |
|
Toshiba |
285T8B |
LOUD WHINE IN NICAM-FM OK |
Q604 ( TD6710AN ) DAC IC |
|
Toshiba |
285T8B |
No sound/pic - blank raster when A1s advanced |
No 5v to micro from 2nd chopper cct - C832 330pf 2kv in snubber burnt |
|
Toshiba |
285T8B |
No sound/vis or osd |
HT ok but 5/12v audio supplies low - C832 leaky in mains pri cct |
|
Toshiba |
285T8B |
No start up |
C842 330µ 25v in secondary psu low (provides 5v for micro) |
|
Toshiba |
285T8B |
St/by only |
TDA4601 Siemans |
|
Toshiba |
285T8B |
TUNING DRIFTING |
CA30/31/35 DISC CERAMICS BY MICRO. |
|
Toshiba |
285T8B |
Very int Stuck in StBy Nicam LED glow |
PSU in over current mode with H.T. less than 20V Change C845 from ( 22uF )
to ( 100uF ) 50V |
|
Toshiba |
285T8B |
Weak contrast |
Check connections to CRT heaters |
|
Toshiba |
285T8B |
WILL NOT START IF R818 20k IS REPLACED WITH 15k SE |
FIT MOD KIT Pt No 23305114 |
|
Toshiba |
285T8BZ |
LOUD SCREECH FROM SPEAKERS FOR 1 SEC THEN NOTHING |
C638 1000mfd 25v NEAR AUDIO OP. CHIP. |
|
Toshiba |
289T6B |
BRIGHTNESS FLICKER TOP OF SCREEN |
CHANGE C205 TO 0.027mfd |
|
Toshiba |
289X9M |
non lin field |
C317 2µ2 near frame chip & C307 1µ near jungle chip |
|
Toshiba |
28MW7DB, 32MW7DB |
Pic shift to right 3 -4", can be correected in serv mode but OSD still
shifted |
C4403 pin 4 IC Q420 dry joint |
|
Toshiba |
28MW7DB, 32MW7DB |
Various - freeze frame of noise, line speed off, no sync & slow motion pic |
Low ampl VD pulse from IC501 pin 31 (0.9v instead of 5v p-p) - chip faulty |
|
Toshiba |
28MW7DB/G 32MW7DB/G |
Freeze frame of noise/no sync/slo-mo pic etc |
VD pulse o/p pin 31 IC501 low amplitude (0.9v p-p instead of 5v p-p). IC501
Q501 part no B0385990 faulty |
|
Toshiba |
28W8DB 28W93DB |
Tripping with LEDs flashing red/green at 1 sec interval |
C819 22µ 100v low cap |
|
Toshiba |
28W8DB C7SS |
Field collapse - no drive |
replace e/w ic Q4370 TA1241 pt no:B0385853 |
|
Toshiba |
28W8DB etc |
Sound mutes with high sat col (int) |
Add 120pf cap in vacant posn RV49 on rear term pcb |
|
Toshiba |
28W8DB, 28W93B etc |
Sound mute during high sat pictures |
Add 120pf in vacant RV49 posn |
|
Toshiba |
28W8DB, 28W93DB |
Tripping - Red/Gn LEDs flashing on/off every 1 sec |
Q802 coll low (should be 35v) - C819 22µ 100v |
|
Toshiba |
2927DB |
COLOUR FAULT-NO B-Y |
ICT01 ( TA8814N ) |
|
Toshiba |
2927DB |
CRACKLE ON NICAM , FM AND EXT. |
IC ICG07 TA8776N. ON BACK TERMINAL PCB |
|
Toshiba |
2927DB |
DEAD , POWER AND TIMER LEDS FLASHING , HT AT 40v AND |
Q828 ( 2SC2230A-Y Toshiba A6325067 ) |
|
Toshiba |
2927DB |
DEAD-STANDBY LED LIT |
ZD81 , TA8211 |
|
Toshiba |
2927DB |
HUM FROM SPEAKERS AT LOW VOL |
MOVE BLUE SLEEVED LEAD FROM PIF CAN. ( CONNECTS TO PA03A ) |
|
Toshiba |
2927DB |
NO AUDIO FROM REAR SPEAKERS ON PSEUDO SUOUND MOD |
CG25 10mfd 16v |
|
Toshiba |
2927DB |
NO COLOUR WHEN USING SCART |
CHECK SCART NOT SWITCHED TO VHS-S |
|
Toshiba |
2927DB |
pic displaced to left |
o/c track connecting R404 |
|
Toshiba |
2927DB |
TRIPS |
IC826 OPTOCOUPLER |
|
Toshiba |
2927DB |
WHISTLING/WHINING NIOSE FROM SUOUND SPEAKERS ONL |
C854 LOW CAPACITANCE ( 5v - 2 SUPPLY ) 1000uF 16v |
|
Toshiba |
2927DB , |
NO TEXT |
DA32 6.2v ZENER |
|
Toshiba |
2927DB , |
Stuck in standby. |
ZP82 OC. BECAUSE SUOUND SOUND IC. ICS01 SC ( ZP82 Toshiba 23144450 ICS01
Toshiba B0376856 ) ALSO IF ICS01 HAS FAILED REPLA |
|
Toshiba |
2927DB 3327DB 2539DB C2D |
Frame bounce on channel change. |
R329 22K. |
|
Toshiba |
2939 |
FAINT BLUE SCREEN WITH NO MANUAL OR REMOTE FUNCTIONS |
REPLACE ZP81 AND IC670 |
|
Toshiba |
2939 |
INT BLUE SCREEN |
CHANGE TUNER |
|
Toshiba |
2939DB |
Int loses sync going from text to tv check settin |
IC501 TA8783n Pt No B0383970 |
|
Toshiba |
2939DB |
No sound from main spkrs - ok from ext surr sound spkrs |
TA8218AH IC on main board |
|
Toshiba |
