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COMPAQ COMPUTER CORP PO BOX 692000 HOUSTON TEXAS 77269 USA
140 473E RAGGED VERTICALS,,C804(150UF400V)
140 473E, POSISTOR EXPLODED
140 476E TATUNG CM14UHRE28 DEAD D813(1N4007),C827(1UF400V)
140 DEAD FUSE(3.15T) C804(130UF400V),BRIDGE RECT
151FS 444 DEAD D933(UG4D/BYM26E) S/C
151FS 444 DEAD/STBY LOPTR(BU2520AF),B+REG Q405(IRFS730)
151FS INT PIC CRT BASE PINS
151FS PREE FUNC /CONTR DWN
15FS DARK ONE SIDE (22UF) ON CRT PCB
171FS 491 DEAD R902(30K3W)
171FS INT PIC CRT BASE PINS
171FS LIKE ADI LM1764
171FS NO PIC, CRT SOCKET PANEL CONNECTION
171FS PIC SIZE ALTERS WITH BRILL,B+REG(65VN),C838(47UF250V)
171FS PREE FUNC /CONTR DWN
171FS(490), LOPTR(2SC4542) S/C ,RESOLDER EVERTHING, GREASE THE SWIVEL BASE
1725 DEAD 2SK2048,C951,STR83145,MAINS SMOOTHING ELECTROLYIC CAPS
315U TOO WIDE C434(0.0047,1K6V)
320 LOPTX =TFCM10
3210 POWERS UP 3SECS ONLY,FAN RUNS,HELP ? FOR MARTIN ELECTRHOLME@NTLWORLD.COM
420
 420 BRIGHT GREEN R526(2R2) ON CRT BASE
420 FOCUS/CONTRAST CRT GONE
420 GREEN PIC R526(2R21W)
420 HFT847 HAS VERY BOXY ADDON LOOKING FOCUS/A1S TFCM10
420 LOPTR 2SC3883 +LOPTX ARCING
420 LOPTX=TFCM10= ;SANYO HFT847 HARD TO FIT
420 LOPTX=TFCM13 OR TFCM10=HFT847 (WARNING TWO TYPES)
420 PIC FADES TO DARK JUST LIKE HEATER BUT ITS LOPTX A1S/FOCUS
420 RED CAST R441
420S EW RASTER SPRAY PRESET RT4 TRY DFL200D PTGE SPRAY
420S NOKIA SCRAP IT
420S LOPTX=TFCM7=Œ40.52,1995
420SC
 420SC DEAD TEA2019+R17(2R2)+R18(1R2)+R21(10R)+CHOPPER
420T
 420T BRILL VARYS, BROWN GLUE ON CRT BASE PCB
420T DARK PIC INT A1S ;LOPTX OR CAP IN CRT BASE
420T DATA GENERAL 6628 WEAK PIC/LIKE CRT, L354, IN SERIES WITH THE HEATER SUPPLY ON MAIN PANEL
420T DATA GENERAL 6628,BROWN GLUE ON CRT BASE PCB,
420T DATAGENERAL 6628 BRILL CTRL NO EFFECT CRT FAULTY
420T DEAD R29 10K+ R4(0R56 1W)
420T FIELD COLLAPSE TDA1170N
420T LOPTX=TFCM13=Œ44.52,1995
420T NO COLOR PIN 15 OF THE VGA PLUG SCL PIN 12 FOR SDA. PIN 12 IS THE MONO-DETECT ID PIN,
420T POOR CRT/TUBE L354 HTR FEED
420T RED SCREEN ; L404(4UH)
420T SIZZLING NOISE R5(220R5W) PSU
440 ZENITH DATA
440 14"
440 DEAD CR3724
440 DEAD HT LINE RECT
440 POOR GREYSCALE COLOR CAST IC201(CR5527S)
443
 443P DEAD NO LED, R903(10K)
443P NO A1S
443P NO A1S.320 LOPTX =TFCM10
444
 444 BLOWS LOPTR LOPTX PINS/FOCUS
444 FIELD CHIP U601(TDA4866)
444 LOPTX (LZ174A-304T TAD53567), LOPTR=BU2520AF
444 LT POWER DIODE S/C
445 DEAD JOINTS EVERYWHERE
445 PHILIPS ?
450 17"
450 DEAD CHOPFET,QX3701(STG4020)UC3842 R3702(1K8),R3727(4K7),R3703(4K7)
450 DEAD HT LINE RECTIFIER
450 DEAD UC3842(221-466E)
450 POOR COLOR,LO VIDEO VOLTS,C409(2U2F100V)
460 DEAD F901 +DEGAUSS POSITOR
460 DEAD FUSE+POSISTOR
460 FUSE+PTC901 DEGAUSS POSISTOR
460 INT PIC/COLORS, 15PIN VGA CABLE
460 PINS EVERWHERE
460P D908(BYV26E) S/C
462 DEAD D927 (UG4D) UF5408;
470 LOPTR 2SD1878(2SC4742)S/C +C512(47UF25V) LEAKY
472P ; SLOW PIC CRT
472P DARK\POOR PIC TUBE INCREASE A1'S /LOPTX ?
473E DEAD FUSE,C827(1UF450V),D813(IN4007)
473E NO RED,R908(100R)
476 EXCESSIVE BRILLD803+R806(0.22)
476 NO SYNC IC202(5VREG)
481 PHILIPS C2082 NO/DARK PIC ,LO A1'S CRTBASE PCB
490 LOPTR(2SC4542) S/C ,RESOLDER EVERTHING, GREASE THE SWIVEL BASE
491 17" DEAD DEAD R902(30K)
610T V50
612T BRIGHT RASTER/NO PIC ,R121(180K)
612T POOR PIC, CRT HEATER DIODE(FIT SCHOTKY 12MBR30{30V12A})
621 V70 GOTO V70 CHASSIS
621 V70 LINE COLLAPSE LOPTR(BU2522AF) S/C
624T V75 DEAD PULSING LED VOLTAGE REG(KA2S0880)
CDS522 DEAD LOPTR(2SD1878/S2055)+220UF50V LINE DRV FEED
DEAD B+REG.FET Q644(IRF630),C854(100UF250V)
MV520 MONITOR WIDTH DUAL DIODE D801 Q802 Q805
MV540 DEAD/STBY R928(620K)
MV720 CO1023U 110V MAIN (USA)
MV720 CO1023U DEAD NO LED. 160V(USA) AT (220MF-400V).CHOPFET(K2333)
MV720 CO1023U DEAD NO LED. 160V(USA) AT (220MF-400V).LOPTR,CAUSE LOPTX
MV720 DEAD CHOPFET(BUT80A)
MV740 DEAD/STBY R925(1M)
PE1120T LED+HTRS ONLY, FET(FS3KM/2SK1507)+1R IN PSU
PRESARIO 313 NO SOUND L OR R TDA7058
PRESARIO V410 BRIDGE,LOPTR 2SC5296(BU2508DF)+LOPTX PINS
PS2021 DEAD 2 * 62KOHM, 1W STARTUP RESISTORS
PS2021 DEAD DIODE (FEP16T) UC3844 C18 100UF, 25V
PS2021 DEAD HT DIODE CR2(FEP16CT) SCHOTTKY+C18(100UF25V)
PS2021 DEAD STARTUP RESISTORS 62K1W O/C
PS2021 PC PSU DEAD,CR2 DIODE(FEP16CT),C18(100UF25V)
PS2021 PC PSU,DEAD 62K2W STARUP RESISTORS
PS2022 DEAD 62KOHM, 2W START UP SUPPLY FOR THE UC3844 CHOPPER CONTROL CHIP
PS2022 PC PSU,DEAD 62K2W STARUP RESISTORS
PS2202 2*62K2WUC3884 FEED
PSU PPP014H,18.5V 4.9A,USE HEAT TO SOFTEN GLUE BEFORE OPENING CASE
S510 DEAD PSU REGULATOR(DP106)
S510 WARM/HOT LINES ACROSS ,C404(10NF)
S700 LED+HTRS ONLY, FET(FS3KM/2SK1507)+1R IN PSU
S7500 DEAD C995(100UF50V),C960(2U2F50V)
S910 INT WARM HISS/WHISTLE,C812,C804,C810,C828,KA3543
S910 SLOW START,C843(1UF NP) C844(1UF NP),C826(20
S910 SLOW START,C843(1UF NP) C844(1UF NP),C826(2000UF16V)
TFT7020 BLUE CAST, RESET TEMP RANGE IN MENU
V304 PRESSARIO, DEAD LOPTR+(2SC3892A)+LOPTX PINS
V40 DEAD LED FLASH LOPTR 2SC4916(S2000AF3)
V40 613 DEAD ,D413(DMV32A)
V40 MODEL 613 DEAD (GREEN LIT SECOND)C837(100UF100V)Q403 (BU2527AX)
V400 DEAD FUSE DEGAUSS POSISTOR
V410 PRESSARIO, DEAD LOPTR+(2SC3892A)+LOPTX PINS
V410, MODEL 304 DEAD LOPTX(2SC3892A)+LOPTX PINS
V45 POOR FOCUS,LOPTX
V50 610 PHILIPS BRIGHT GREEN, L5721 ON CRT BASE PPCB
V50 610T (PHILIPS) BRIDGE IN5408*4
V500 DEAD D630
V510(316)WARM DIM PIC,RESOLDER EVERYTHING,C833(470UF16V)
V55 612T
V55 LINE WHISTLE,L401 SUPAGLUE
V570 EXCESS BRILL,PHOSPHER BURN ,R521(330K)
V70 V70 621 17" DEAD Q404LOPTR(2SC5129)
V70 621 17" NO PIC,Q505(2SC5088) STRF6524
V70 621 17" TICK,PIC JITTER,C183(10NF1KV) ON CRT BASE PCB
V70 621 LINE COLLAPSE LOPTR(BU2522AF) S/C + PINS
V70 MODEL 621 1 INCH WIDE PIC, LOPTR(BU2522AF)
V70 PIC SIZE C851(47UF250V)
V90 DEAD R866(2R2)LOPTR(BU2520DF)CAUSE LOPTX ARCING FEA662
V90 DIFFICULT ACCESS
GOTO TOP If you know of any fault repairs NOT here. Please email the info to me
your fault NOT here , try my step by step guide Do it yourself guide
Highlandelectrix