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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: 374
B & OL2500Servicing the L2500Picture on cover & layout.14-09-04
B & OL2500 LStuck in standby.BU508 s/c.14-09-04

B & OL2502No soundIC101 pin 7 (5.9v) = 0v C111 100µ 25v s/c14-09-04
B & OL2502 (3866)Dead & squealingResolder a mass of dry joints on the PSU & line output panel then replace the short circuit line output transistor (TR11) S2000A3.14-09-04
B & OL2502 3866Int starting , chopper drive present. If pin 3 IC1 , LM358 low check R14 & R16 , 220k.If still no go , check TR20 on Tuner IF PCB .14-09-04
B & OL2505st/by only after short squeal at sw onlop tr TR11 S2000A3 s/c and resolder dry joints esp at C34 6n814-09-04
B&OL2500psu shutdownline dr tr 4TR15 BC328-25 o/c b-c14-09-04
HitachiCL2114Goes to stby immediately after switch on. +B with no load is 130V. Should be 115.Resistor 39K near +B adjustment pot has gone high to 48K. To troubleshoot, overvoltage thyristor near to LOPT may be pulled off the chassis. However be cautious with overvoltages!14-09-04
HitachiCL2114Goes to stby immediately after switch on. +B with no load is 130V. Should be 115.Resistor 39K near +B adjustment pot has gone high to 48K. To troubleshoot, overvoltage thyristor near to LOPT may be pulled off the chassis. However be cautious with overvoltages!14-09-04
HitachiCL2524RDeadReplace LOPTr BU2508AF, check R951, 952, 953, 954 &Q703 thy14-09-04
HitachiCL2524RLack of height with no adjTDA836214-09-04
HitachiCL2864TADead except for flasing red ledD704 BY228 on lop sub panel s/c14-09-04
HitachiCL2864TAHum on sound with pic instabilityReplace C916, C942 & C957 in psu14-09-04
HitachiCL2864TAPSU tripping - went off with a bangOverload on LOP caused by IC800 TEA5101A RGB o/p chip s/c14-09-04
HitachiG7PSL2St/by onlyZD903 130v zener s/c; C906 4µ7 250v hi esr; R901 6R8 5w o/c;Q903 BUT12AF s/c; F901 2.5A o/c - all caused by dry joints T90114-09-04
Philips5GFL2.30E AADead aft storm - led green for 40secs then redFSS supply not working - fit FSS supply kit - includes module Pt no 4822 310 3221414-09-04
PhilipsFL2.14"NVM write protection enabled" message on screen.Startup problem or 'NVM write protection enabled' message on screen after replacement of NVM (ST24C08CB1; 4822 209 32283) with a ST24C08CB6 (4822 209 33113). Use as replacement the ST24C08 1 (9311 021 36682).14-09-04
PhilipsFL2.14100Hz crossPossible solutions: 1. Interrupt on the SSP the 50Hz Y-signal, between pin 11 position IC7324 (TDA4568) and pin 11 position IC7395 (TDA8443), by deleting position 4302. Repair the connection by means of a shielded cable of 16cm long, m14-09-04
PhilipsFL2.1422AV1440 is switched on by external VCR when FL1 is switched offConnect 4 diodes of type BAT 85 to inputs of IC7630 on SSP. 1 diode between pin 3/IC7630 and +5V, cathode to +5V. 1 diode between pin 5/IC7630 and +5V, cathode to +5V. 1 diode between pin 3/IC7630 and -8V, anode to -8V. 1 diode between pin 5/IC7630 and -814-09-04
PhilipsFL2.1450Hz buzz noticable through speakerCheck/replace IC7680 on the SSP - TDA8425, pseudo stereo IC. (4822 209 63734). 14-09-04
PhilipsFL2.14Adaption of Service Information FL93.05Adaption of Service Information FL93.05 --------------------------------------- From 93-06-24 onwards the definition of optioncode 4 has been changed. From this day onwards the definition is as follows: 1 TXT peaking filter on/off for LFR box (Scandina14-09-04
PhilipsFL2.14After 10 minutes picture becomes red from right sideC2395 on the LSP poorly soldered. 14-09-04

PhilipsFL2.14Antenna input: no sound. External input: sound O.K.Check whether crystal 1602 (stereo decoder) 10MHz oscillates. If not replace X1602 (4822 242 80276). 14-09-04
PhilipsFL2.14Bad focus or focus varies in a new set or after CRT replacementPossible solution: Short circuit the focus and the G2 pins of the picture tube with the aquadag coating. Switch the set on for approximately 5 seconds. After this return the set to its original condition. Check if the focus adjusted normally. If not repla14-09-04
PhilipsFL2.14Bad pict. No menu. Dark bars over pict. Red pict. in dig.scan mode.+5V was 4,3V instead of 5,1V. IC7551 (LM358N 4822 209 70672) defective. IC7209 (SAA7158 4822 209 31059) Bendic defective. 14-09-04
PhilipsFL2.14Bad picture. Picture scrolls. No RC reaction.+5V was 4,1V instead of 5,1V. Replace IC7551 (LM358N; 4822 209 70672) 14-09-04
PhilipsFL2.14Blank picture. OSD not synchronised and too large, no TXT.Check/replace memory IC 7900 (ST24C08CB1; 4822 209 32283). 14-09-04
PhilipsFL2.14BUX85F in mikroSOPS defectiveChange the value of C2260 to 4n7F, replace 7270 with transistor BD825 (4822 130 41746). 14-09-04
PhilipsFL2.14Colored picture or picture is green/red, fly-back linesCheck zenerdiode 6450 on pin 19-IC7430 on the LSP. New diode must be Philips (Telefunken does not work), 4822 130 81512 14-09-04
PhilipsFL2.14Coloured spot on screen during switch-offReplace R3037 by 1k3 (4822 051 10132). REMARKS : Introduced in production from week 9334 onwards. 14-09-04
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