datasheet,schematic,electronic components, service manual,repairs,tv,monitor,service menu,pcb design
Schematics 4 Free
Service manuals, schematics, documentation, programs, electronics, hobby ....


registersend pass
Bulgarian - schematics repairs service manuals SearchBrowseUploadWanted

DatasheetsChassis2modelRepair tipsFulltext searchCables & Connectors
Repair tips

Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair

MakeModelProblemSolutionDate
Found: 32
B & O5500Snowy pic, no sound & erratic colIC6 TDA8120 in IF14-09-04
B & OLX5500 3903St/by only after initially being hard to turn onC20 & 25 47µ 50v 14-09-04

Bush2550NTXCuts out aft several hrs with HT rail pulsingR816 47R sm feedback to chopper chip int o/c14-09-04
Bush2550NTXPreventative maintenanceCheck scan coil plug for dry joints - if burn up occurs could be write off14-09-04
GrundigGRT550Dead.T661 ( S668T ) faulty.14-09-04
GrundigTVR5504Int deadDry joints around LOPTx though looked ok14-09-04
GrundigTVR5504INT TEXT FLASHES GARBLED TEXT ON TO PICTURE AND PIDRY JOINTS ON EARTHS ON TEXT PCB14-09-04
MitsubishiHS550V(B)ROW OF DOTS ON SCREENREPLACE CHARACTER GENERATOR IC50114-09-04
Philips21CE7550Dead - HT only 35v (135v)LOPTx14-09-04
Philips21GR2550F7 in display/ LED flashing - no user controls5v supply to Txt pcb low - C2843 22µ 16v14-09-04
Philips2550DEAD-LOUD TRIPPING NOISED6845 ( SURFACE MOUNT ) SHORT14-09-04
Philips2550NO FIELD SCAN ( APPROX 2" )R3511 HIGH14-09-04
Philips25MN1550No tuning - in Hotel modeselect CH 38 simultaneously press vol + and ch - to disable hotel mode14-09-04
PhilipsG90AE 21GR2550Tripping PSUCheck/replace 3 x 33v sm zeners in series14-09-04
PhilipsGR2.2 25MN1550No line or field syncIC7470 TDA2579B tbase gen chip u/s - caused by arcing LOPTx14-09-04
PhilipsGR2.2AA 25MN1550LOPTr destroyed every few days/weeksVaryation in hor phasing - TDA2579B timebase gen chip14-09-04
SabaIKC2 M5506No signalsReplace II06 SDA 3202 in tuner14-09-04
SchneiderSTV5501 11AK19Bright screen with fb linesCheck D609 BA159 & its series connected resistor14-09-04
Toshiba2550TBframe collapse, no soundR480 (24545229) o/c, IC480 MC7809BT (23904844)14-09-04
Toshiba2550TBPARTIAL FRAME COLLAPSE AND NO SOUNDREPLACE R480 AND IC48014-09-04
Toshiba2550TBpatterning on top and bottom from cold, freezing QD03 on DPC board shows the faultdesign problem causing line pick-up from video stage, add 0.01uF 50V cap on print side of DPC across RD1314-09-04
Toshiba2550TBPic jumps & arcing noise with G2 fashing on crt baseCheck earth pin of LOPTx14-09-04

Toshiba2550TBWidth lacking with E/W corr faultyQD01 2SB688 leaky - or was it a dodgey heatsink? Insulate from heatsink14-09-04
Wharfedale550Dead - no line drivereplace Q580 (C1573A) and R609 1K 4W14-09-04
Wharfedale550Field shifted down after burnt LOPTx replacedReplace RD06 10k & RD17 4K7 (burnt) & adj in serv mode (in vault)14-09-04
Wharfedale550Off with burning smellC599 2n2 high volts disc ceramic cap in LOP burnt14-09-04
Wharfedale550Pic absent - sound okR609 1k 5w o/c & Q580 2SC1537 line dr tr leaky14-09-04
Wharfedale550St/by only - no line driveQ580 (2SC1573A line driver) equiv 2SC3468 (Seme) - also replace LOPTr BU508AF14-09-04
Wharfedale550Width lacking & no E-WRD18 ( 5K6 1w safety) o/c which was caused by CD21 ( 470 or 680nF 250v ) being O/C to print14-09-04
Wharfedale550FTBSCART I/p has no sync - sound okTDA8361A replaced & resolder scart14-09-04
page: 1 2
 FB -  Links -  Info / Contacts -  Forum -   Last SM download : Peavey T-Max Bass Amplifier

script execution: 0.10 s