| CRTS | No focus. | CHECK BEHIND CRT BASE |
| FE1 | Snowy pic & tone on sound | IC001 micro faulty |
| FX | Field foldover | D506 |
| GE1A | Lack of width & E/W dist | Check PS1502 cct prot on board D1 - uprated from 1 to 2A |
| GE1A | narrow raster with E-W error | fusible link PS1502 1A o/c. Sony recommends to replace it with a 2A link part number 1-533-593-31. The link is located on the D1 sub board. |
| GP1 | Dead - HT fuse blown , SR2M overvolts diode s/c. | STR50115 THEN NO LINE DRIVE - IC501 UPC1377C |
| GP1 | NO SOUND OR VIS , JUST BLANK RASTER AND FLYBACK Lin | M50431 - 511SP |
| GP2 | no chan store | no -32v supply from lopt - coil L851 o/c |
| GP2 | Searching but cannot store. | -32v supply missing, L851 O/C near lopt. |
| HF | REPEAT FAILURE OF Q651 | CHANGE DAMPING DIODE D654 ON FA BOARD FIT RGP02-17 Pt No. 8-719-976-64 |
| KPS112U (proj) | Int convergence | D/Js on one of the STKs on convergence panel gain access to the convergence panel by taking off the panel below the screen at the front. |
| KV1340 | Hum bar & lack of width. | C523 ( 10u f ) o/c. |
| KV1400 | Dead - F601 3.15A o/c | R601 3R9 10w o/c; Q605 Chopper s/c; R627 0R47 1w o/c; C518 330pf 1kv leaky & was the cause |
| KV1400 | Tuning drift - intermittent. | DJ in BT871 tuner on ground & print. |
| KV1412UB | Striations on lh side | C534 22µ 250v |
| KV1420 | Raster - bright blue. | Ty slight adj of G2 first anode supply. |
| KV1422 | Won't power up | Q503 leaky - tested ok out of cct also C801 22µ 250v s/c |
| KV1462 | Negative pic | Dry joints IF201 module |
| KV14M1D | Int dead - goes into prot mode | TDA8139 int |
| KV14T1U | Dead | R614 0R47 |
| KV14T1U | LED flashing 6 times with a break of 1 sec between every 6 flashes. | Replace LOPT (Konig FAT30489 from Seme) |
| KV14T1U | Pic fades with flaring at sw on | crack by loptx (to crt htrs?) |
| KV14V5U | Stuck on BBC1 aft few mins & then blank raster on chan change & no osd | Dry joints tuner |
| KV1602 | Horizontal green lines in picture when hot | Remove capacitor C816 33pF. |
| KV1800U | Frame - jitter - intermittent. | Q507 noisy. |
| KV1810 | Left side too dark right side too bright. | C543 ( 4.7u f , 350v ) o/c on field/line TB panel. |
| KV1810U | Failure of GCS. | C523 ( 22u f , 400v ) |
| KV1810U | Frame - height reduced. | C523 , C503 , C504. |
| KV1810UB MK2 | Frame - height varying. | Thermistor Th501 , check field TB presets. |
| KV1810UB MK2 | Frame - slight field non-linearity. | C520 ( 10u F , 16v ) can use two 22u F back-to-back. |
| KV1810UB MK2 | Grainy picture. | Q211/212 plus associated components , tuner. |
| KV19XMTU | Tuning drift & wont tune in new chans | dry joints if unit |
| KV2000 | Flyback - lines - over two thirds of pic. | C827 ( 4 7u f ) HT decoupling o/c. |
| KV2000 | Power supply. | C612 ( 3 3u f , 25v ) |
| KV2000 | Startup - intermittent. | D507 , C612 , Q604. |
| KV2000 MK2 | Blank picture for while then starts from bott | C818 ( 4.7u f , 250v ) |
| KV2000 Mk2 | TOP OF PICTURE DARK IMPROVING WHEN WARM | C827 4u7 250v |
| KV2000U | Frame - height reduced. | D501 ( 1T40 ) leaky. |
| KV2000U | Tripping. | C808 , L802 , L801 , C801. |
| KV2000UB | Dead - blowing line transistor intermittently | D808 goes o/c when hot. |
| KV2020 | Line osc drifts with time | Check C507 33n, C509 10µ 16v |
| KV2020 | lop tr s/c repeatedly | check its mica washer for pin holes |
| KV2020UB | 2" foldover at top. | C559 ( .022u f ) , C560 ( .015u f ) |
| KV2022UB | Line - tearing & jagged verticals. | R637 , C609 , C621. |
| KV2022UB | Right hand side of picture blank for 5 mins. | C621 ( 33u f , 160v ) on power supply. |
| KV2032 | Won't start, dead. | Check/replace R627 2,2M resistor in the power supply. |
| KV2032ME | No horizontal synchronisation when cold. | Replace capacitor C509 10uF near horizontal driver transformer. |
| KV2032ME | Pic only 3" wide on lh screen- increases as it warms up | C514 = 33uF / 160V ; C801 = 22uF / 250V ; C557 = 2,2uF / 160V . |
| KV2060/62 Mk1&2 | blank raster and no sound although it appeared to lock sync blank stable pic ) | 1/ D 102 in the mute cct ( MK1 versions only ) 2/ D 306 in pulse shaping cct ( Both Versions ) |
| KV2075 | POOR CONVERGENCE | L551 |
| KV2096 | Text shows blank screen only | RV3 Txt preset contrast pot 100R o/c |
| KV2096/92 | Int swaps between Tuner/AV | Fracture in earths on sigs board by screen can clips |
| KV211XMTU | Int goes bright green | Q311 buffer display tr on video panel - 2SC2785 used as official replacement |
| KV2184 | Chans won't lock when tuning & garbled OSD | LA78LR05 5 legged 5v reg with µ reset built in faulty |
| KV2184 | Dead - STR50115 overheating | Replaced chip (s/c pins 2 & 3) but still dead; D608 R2M diode s/c & PS801 800mA cct prot o/c |
| KV2184 | Switches off on bright scenes | R621 1R in psu slightly hi (1R4) |
| KV2184-34 | Won't start, pin 41 (stby) of microcontroller is high. | Replace Q003. No leak or any other defect was detected with a VOM. |
| KV2184-34 | Won't start. Nothing heard upon switch-on. | Diode D604 short circuited |
| KV2184-34 | Won't start/ loud audible buzz.Sometimes starts and switches off after a while.If stby pin(41) of Mp desoldered,all ok | Replace Str50115. |
| KV21T1U | No Txt, excess width/height, poor contrast | Reset eeprom - press on the remote on screen display key No 5 vol up key tv set will come on with TT on screen press menu |
| KV21T3 | VOLUME GOES TO MAX, NO REMOTE OR FRONT CONTROL | REPLACE MICRO |
| KV21T3U | Dead - brief rustle of EHT & LED repeatedly flashes 6 times | LOPTx - will not run on dummy load (still trips) HT = 145v in fault condition - when LOP stage isolated with no dummy load, LED flashes X4 |
| KV21V6U | Error message - asking to be reset all the time | EEPROM chip ST24C16FM6TR IC002 |
| KV21V6U | No pic- screen blank - OSD ok | IC401 CXA1855Q vi switching chip |
| KV21VSK | Dead - lightning stike | TOP223 on st/by psu, fuse o/c, s/c bridge rect & chopper tfmr of st/by psu had burned off wire - able to repair |
| KV21VXIMT | Field collapse - may be int | Dry joints Q551, 553, 554 & 555 & replace C556 4µ7 160v & C560 470µ |
| KV21VXIMT | Rolling - may be int | µPC1377C timebase gen chip |
| KV21X1 | DEAD | REPLACE IC600,D603,R601,R605,Q601 |
| KV21X4U | NO PICTURE LED BLINKS TWICE | RESOLDER IC604 |
| KV21X5U FE-1 | Dead with 2 flashes from led | When D512 was unsoldered, LOP stage operated - Q703 (BF420), Q704 (BF421) and Q713 (BF420) all in the red output. Plus D701 (MTZ J 5.6B, a 5.6V zener) leaky and D705, 1SS133T (1N4148) O/C. all on crt base |
| KV21XRTU | Dead with no 135v HT | When LOP stage dis'd HT ok - LOPTx faulty |
| KV21XRTU | Field collapse with R802 1R2 o/c | When R802 replaced blew again with arcing from loptx - loptx replaced & D808 which was causing E-W fault |
| KV21XRTU | Rope pattern 1/8th inch wide on lh side of screen | Check dressing of cables - keep away from C715 & scan coil plug |
| KV21XRTU | Txt faulty - only TV chroma present in TXT | High res conn pin 5 connector D3 (blanking o/p from Txt decoder) |
| KV2200 | Whistle - intermittent. | C612 ( 3.3u f-4.7u f ) will do , C622 ( 33uf ) |
| KV2206 | Dead | Dry joints chopper tfmr pins |
| KV2207 | off | R604 470K on psu hi res |
| KV2207U | Dark picture. | R724 ( 1M ) high. |
| KV2207UB | Dead | R604 470K on psu panel gone high! |
| KV2212 | R/C has no effect except sw on | 12v supply to r/c chip low at 10v - R656 56R hi res |
| KV2212 | Stuck in AV Mode | Tact sw |
| KV2216 | Stuck on Chan 0 - no sound/pic | Sticky tact switches (the rest one), djs D801,2,8,9 |
| KV24WSIU BE3B | LED flashes 6 times at sw on - no action | could be memory problem (IC701) or dry joints tuner/multiway block connecting tuner pcb |
| KV2500WX | Field poor lin & top/bottom foldover | C558 560µ |
| KV2553 | East-West, reduced width. TEA2031 replacement failed. | Change C830 and C831 1uF caps. |
| KV2562 | COLOUR FLICKERS OFF AFTER 30mins | IC301 |
| KV2576UB | NO RASTER - FIELD COLLAPSE BUT BLANKED OUT | CHECK RES IN SERIES WITH D804 |
| KV25F3U | Service Mode entering | switch off (mains); -while pressing volume + and - on the front of the set switch on; - osd "TT" appears; -press "menu" |
| KV25K5U | LED flashes twice - LOPTr s/c but still goes s/c at sw on even with LOPTx replaced | Q635 line driver & check R546 47R feed res |
| KV25KSU | FRAME IC HOT LINES ON SCREEN | REPLACE C506 0.01MFD |
| KV25X5U | Low width, poor e/w correction, high contrast picture going blue after a while. | IC606 9v regulator 7809 s/c. |
| KV2704 | Intermittent startup. | Check R605/606 , if HT down to around 80V check C623 ( 33uf , 250v ) |
| KV2704 | Sometimes it won't start. | Check / replace R606 470 kOhms resistor. |
| KV2704UB | POOR STARTING | R605 R606 OR C623 33uF 250v |
| KV2712 | SCREEN ONE HALF GREEN | IC 302 TDA4661 |
| KV2720 | Chopper transistor Sced after running for 10-15 mins. | Replace all electrolytics around uPC1394 |
| KV2730EC | Pic very slow to appear - sound ok | Possible CRT low emission |
| KV2756 | Field Collapse | R808 o/c off pin 12 of LOPTx (no 28v supply) |
| KV2762 | Field reduction & non lin | TDA3652 field o/p chip |
| KV2764 | Vertical IC TDA3652 defective. -No longer available- Foldover at the bottom , reduced width. | Fit a TDA3654 and change R518 to1,5K |
| KV2766 | No I/p from scart until warm | C655 220µ 25v in psu - 6v smoother |
| KV2766UB | Remote Control int | C655 220µ causing 6v supply to be low at 3.8v |
| KV27XRTU | Convergence errors | Q1504 HAMP driver tr leaky |
| KV27XRTU | No sync | No vid I/p to sync sep pin 5 IC501. SAA5230 chip on txt pcb no o/p pin 1 & overheating - Q002 12v reg s/c & SAA5230 faulty |
| KV27XSC | No start up | Pri chopper tfmr o/c |
| KV28DS60U | Electronic Screwdriver settings | With set in st/by, press r/c in order - "display", "5", "Vol+", "TV" - the screen now displays " T T - -". Select "Menu" puts you into service mode |
| KV28DS60U | Lack of width | PS1502 1A cct prot on D1 LH vert panel (now upgraded to 2A) |
| KV28WS2 | VOLUME VARIES, CHANNELS WIPE FROM MEMORY, UNUSUAL CHARACTERS DOWN SIDE OF SCREEN | REPLACE IC3 WITH PREPROGRAMMED NEW TYPE |
| KV28WS2U | BUZZING NOISE THROUGH SPEAKERS | CHECK EARTH CONNECTION ON CN303 PLUG FOR O/C OR DRY JOINT |
| KV28WS2U | Dead at sw on - will produce a click from relay after a period of time. When G2 advanced, line collapse noticed | Check for dry joints around scan coils plug, check R870M for o/c 1R, 1w |
| KV28WS2U BE3D | EEPROM corruption | Caused by flashover of red gun in crt - crt replaced under warranty (if lucky) |
| KV28WS2U BE3D | LED successively flashes twice | M24C32-MW6T EPROM IC2 - 8 leg sm device pt no 875952494 |
| KV29F1U | Tripping | Stops when 71v sec supply dis'd. Q603 2SC3502 in prot cct leaky |
| KV29F2 | NO SOUND FROM COLD | REPLACE IC3 WITH PREPROGRAMMED NEW TYPE |
| KV29F2 | SET COMES ON WITH FLYBACK LINES THEN GOES DEAD | REPLACE Q707 (GREEN) Q710 (BLUE) OR Q704 (RED) |
| KV29F3U | To enter service mode | press following buttons on remote slowly in sequence + (osd button), 5, vol+, TV and it will switch on in test mode 1 press menu on the remote next--power off to quit |
| KV29X1 | INT BLANK SCREEN | REPLACE A BOARD |
| KV29X5L | Stuck in standby with two blinks from front LED every few seconds. | Replace L.O.P transistor 2SD2539. S/C due to poor soldering of scan caps on collector. |
| KV29X5U FE1 chassis | Vol OSD perm displayed & front controls give wrong functs | Leaky front control switches - can be cleaned with luck/care |
| KV32FX60U AE5 | No sync in Txt or OSD | IC2303 pt no 8-759-438-64 sm on board B1 |
| KV32WF1 | NO SOUND | REPLACE IC1200, PS602, Q1200 AND Q1201 |
| KV32WF1U | DEAD WITH POWER SUPPLY SCREAMING | REPLACE LINE O/P TRANSISTOR Q802 |
| KV32WF1U BE3D | Serrated line at top & bottom of screen | Fit improved line driver trfmr pt no 1-437-090-31 |
| KV3410B | BU508 blown - getting hot. | Check value from supply control ( HT? ) pot to 135v rail , gone high. |
| KVA2542 | DEAD | CHECK CIRCUIT PROTECTORS PS682 AND PS681 |
| KVA2942S | FOR VERTICAL SHIFT AND HEIGHT PROBLEMS | ENTER SERVICE MODE AND MAKE SURE "GEOMETRY SET" IS OFF |
| KVA2942U | Vol intermittent | R627 27R hi res |
| KVB2923E | No pic or LED at sw on - EHT present. On entering a command LED blinks rapidly 3/4 times | Possible CRT low emiss - try decreasing value CRT heater ballast res to check |
| KV-C25/27 | Memory inoperative. Memory chip replacement failed. | Check that pin 2 of memory chip is at -30 volts. If not check D809, R830, L807 and the -30V smoothing cap. In two cases, L807 was found to be open cct. |
| KV-C25/27 | Starts on Pr0 and every time Pr+ is depressed, it goes subsequently to Pr8, Pr16,Pr24 and to Pr0. | Change D008 5Vzener located near M58655 memory chip. |
| KVC29 | No pic - sound, HT, crt htrs all ok | R807 burn up & change diode in series with it (causing leakage) |
| KVD2512 | Nicam int reverts to mono sound | Nicam buffer tr Q181 JC501 or 2SC2785 |
| KVD2512 | SOUND CUTS OUT OR IS DISTORTED | REPLACE C615 |
| KVD2912 | FRAME FOLDOVER | REPLACE C531 680MFD25V |
| KVDX271TU | Field cramp at top with fb lines | C5006 3.3mfd 160v on D1 PCB vert on lhs |
| KVDX271TU | SET TAKES 10-20 MINS TO COME ON | REPLACE C615 IN POWER SUPPLY 1000MFD35V |
| KVDX27TU | Pic fades out - a good bang on side restores | Pin 1 CND11 bad joint - "A" panel plugs into it |
| KVDX27TU | Pic fades out - returns after given a thump | Dry joints IC301 |
| KVE21X1U | Service mode access | select OSD ,5,Vol+,TV; TT appears in right hand corner. Select menu .Adjust with cursor keys .Standby to store new settings. |
| KVE2522 | Field scan distorted | C532 680µ25v, C531 100µ 50v |
| KVE2532 | Settings (excess contrast/field cramp) off aft thunderstorm | Reset electronic screwdriver |
| KVE2922E | Dead - chopper tr s/c | Replace chopper 2SD1548 & TEA2260 & C611 47µ which was cause |
| KVE2922U | Int loss of col with flashing pic | Dry joints screening can tabs on digital comb filter PCB B1 |
| KV-E2961D | Intermittently switches off or refuses to switch on at all. | Cold solder joints in Tuner. The fault is common with many Sonys which are fitted with the spanish made 8-598-045-01 tuner like f.eg KV-M2540D. |
| KVFX29 | Field foldover at top | D506 G108D leaky |
| KVG2512 | Satlelite section failed - no LNB volts | CP605 on main board D o/c (difficult to get at) |
| KVM1400U | Dead with slight squeak at sw on | Check cct prot by loptx & STR54041 |
| KVM1400U | St/by only LED flahes when sw pressed | PS801 N15 cct prot |
| KVM1420 | Contrast & sound reduce aft 30 mins | C012 22µ 50v leaking between tracks |
| KVM1420U | No colour | IC331, TDA4510 |
| KVM14UTV | No sweep tune lock | Dry joints IF can afc coil |
| KVM1621U BE2 | Int pic - comes & goes when banged | Dry joints L501 |
| KVM16TU | Dead | Replace STR54041 with the expensive Sony one - not a copy |
| KVM19D | Hor lines near top of pic RH side | LOPTx - faulty 24v supply |
| KVM2100D | EAST-WEST Won't adjust properly. Excessive width. | Change capacitor 47nF/400v parallel to E-W diode |
| KVM2101 | Int sigs | Resolder IC502 (TDA8304) even if the soldering appears ok |
| KVM2101U | No colour | CT332 |
| KVM2101U | WIDTH AND E/W PROBLEMS | REPLACE C806 47NFD250V |
| KVM2131U | Field collapse | µpc1488H |
| KVM2131U | No chan store | Dry joint pin 5 IC002 EEPROM |
| KVM2170 | Dead | Should be 135v cath D606; 20v at cath D607; 8.5v at cath D608 - no 8.5v as ICP PS603 1A N25 o/c |
| KVP14U | Dead | PSU shutting down due to excess current in secondary - C608 680pF prot cap breaking down under load |
| KVV1430U | St/by only - trips when sw on | LOP tr S2055N s/c - used BU508DF |
| KVX2121U | Sound has int crackle | Bridge rect dry joints |
| KVX2132U | Pic fades out & crackle on sound - other tvs in w/s pick up radiation | LOPTx internal arcing |
| KVX2162 etc | Field o/p faults/led flashing 13 times | After chip replacement, if geometry still not right check serv mode |
| KVX2162U | Shuts down aft 5 mins | s/c between heater/cathode of crt when heated - can be measured on meter |
| KVX2162U | Sound int | Dry joints Xtal X1101 on Nicam sub panel |
| KVX2172 | Only selects chan 3 - when other chan selected reverts to chan 3 aft few secs | ST24C16 EAROM corrupted - replace chip and set up |
| KVX2172U | Field top foldover | FOP chip |
| KVX2182U BE3 | St/by only | Memory chip IC002 sm on board A pt no 8-759-334-20 is probable cause |
| KVX25121U | Stuck on chan 11 | fault cleared when front panel removed/replaced - jamming button? |
| KVX2512U | FRAME FOLDOVER | REPLACE C531/532 NEAR FRAME O/P IC |
| KVX2521 | Int bright blank raster, all normal settings at max & no chan store | T807 10mH coil int o/c - must use correct coil SEME order-code TPAR2419 £5.74 |
| KVX2521 | Red, green, blue lines appear across top of screen after time - worse on txt | C531(680uf / 25v) |
| KVX2521U | Field lin - streched top, compressed bottom | C531 680µ low cap |
| KVX2521U | High pitched buzz from rh spkr | Dry joints audio o/p chip |
| KVX2521U | Int loss of pic & sound | 12v supply lost when pcb flexed - Q608 front/centre of pcb dry joints |
| KVX2532U | Nicam dropout | Adj orange variable cap on Nicam board |
| KVX2562U | Flashing pic | Dry joints reg Ics near front of pcb |
| KVX2572UB | LED flashes 13 times at sw on | Indicates field fault - s/c field o/p chip on –15v supply |
| KVX2582U | Field - top cramp | IC500 STV9379. |
| KVX2582U | INT CRACKLING SYMBOLS ON SCREEN JUMPING BETWEEN NICAM AND MONO | REPLACE X1101 ON NICAM PCB |
| KVX25TU | Lack of height | IC502 TEA8170, C531 680µ Q505 2SD774, Q506 2SB734, Diode 1502 |
| KVX2902 | NO REMOTE FUNCTIONS | RESOLDER RA1,RA2 AND RA3 |
| KVX2902U | Flyback lines visible with blue blackground, 2 minutes after switch ON, going into standby |
C710 10uF 250V capacitor on tube base. |
| KVX2932U | FRAME FOLDOVER | REPLACE C531 1000MFD50V |
| KVX2942 | INT NO SOUND FROM SURROUND SPEAKERS | REPLACE R627 IN POWER SUPPLY 270 OHM |
| KVX2942 | INT NO SOUND FROM SURROUND SPEAKERS | REPLACE R627 IN POWER SUPPLY |
| KVX2942U | GRAPHICS WOBBLE FROM SIDE TO SIDE | RESOLDER 12V REGULATOR UNDER PLASTIC CRADLE |
| KVX2952Y | FRAME CRAMPED WITH FLYBACK LINES | REPLACE C532 100MFD50V |
| KVX2962U | Slow start up before sound/pic appear then dull green with no sound int | Replaced Q705 (BF871) and R712 (15k) on the tube base. |
| KVX2972UB | No pic - HT/EHT present | R701 680k in A1 supplies hi res |
| KVX2982U | Bright pic with fb lines | R722 680k in A1 o/c on crt base |
| KX20PSI | Int field roll with faulty col | Int switching to NTSC standard - CX7916 chip IC503 qaulty |
--------------------------------------------------------------
