ورشة صيانة التلفزيون صيانة و أصلاح جميع انواع و ماركات التلفزيونات TV's Repair Workshop

   

الصورة الرمزية ashefsamy
ashefsamy
:: عضو ماسي ::
تاريخ التسجيل: Feb 2007
المشاركات: 1,571
نشاط [ ashefsamy ]
قوة السمعة:
قديم 11-06-2010, 01:02 PM المشاركة 1   
افتراضي اليكم العطل وطريقة الاصلاح للتليفزيون



اليكم اعزائى الكرام مظاهر عطل التليفزيون وطريقة الاصلاح لكل موديل على حداة اتمنى ان يعجبكم وشكرا :



Hitachi TV Model: C2133TN (Nokia Stereo Plus) Chassis)
Very strong red content in the picture, sometimes the fault would clear with the strong red content fading until the correct greyscale was achieved
After much searching around i found the problem. There was a very small crack in the solder at RH23, this is a 2K4 surface mounted resistor located at the back of the tube base. Resoldering both sides of it cured the fault
(Sparky)

Jvc TV Model: C-V14EKS/B/W (Onwa Chassis)
No Red
I was hoping the nvm had become corrupt and turned the red drive down but it was fine (To enter service mode press and hold vol up and vol down on the front panel and switch set on). Thankfully ZD405 (8V2) had expired (almost s/c) and removed the red
(Andy Doswell)

Sanyo Video Model: VHR776E
Dead
Check and replace PR512 (which is located towards the front right hand side)
(T.t.r.s. - Tim)

Sony TV (AE1 Chassis)
Field non linearity and short picture
Check / replace C531 (680uF, 25v), only slightly leaky, but a new one cured the fault
(Anonymous)
Ideal/Slx TV Model: IDTV28T/IDTV28N/SLX28T2/28N (SM2 Chassis)
EW fault then set went dead (tripping), R711 on EW panel burnt
Check for dry joints on C620 (0.47uF, 250V), if dry replace then check Q602 and R618 (5K6). Also it is worth replacing Q580 anytime these sets come into the workshop with a BF422
(Leonard O'Brien)

Philips TV Model: 25PT4423 (L6.2 Chassis)
Stuck in standby, LED on, no HT
There may be no 5V to the microprocessor. Check R3509 and D6501. Replace R3509 with a 47k 1 Watt version (4822 053 10473). D6501 is type BZX79B5V6 (4822 130 34173). Check the +150 volt rail, 145V is too low
(Adel Ibrahim)

Rca TV Model: F27442 (CTC203AD5 Chassis)
No picture and sound, only a high pitch sound at switch on
Remove horizontal transistor and measure the resistance across any two pins. This value should be no less than 200ohms
(Roughtest)

Sony TV Model: KV-M2131U (BE1 Chassis)
Intermittent loss of syncronisation, both horizontal and vertical
The surface mounted power transistor on the teletext module requires resoldering. As there is evidence of scorching on the board the use of a more substantial component would be indicated perhaps with small heatsink
(Desmond Armstrong)

Samsung TV Model: CZ-21D83NS
Double picture or raster shifted
Check R414 (15K)
(Leonard)

Sony TV Model: KV2565
Dead with H. output short circuit, replacment blows short again
First check power area and repair dry joints then change all high voltage (PF value) capacitors in the horizontal section, this fixed the problem
(Imran Khan)

Mitsubishi TV Model: CT29B2STX
Various faults, dead, int. dead, poor frame, poor E-W
Change all electrolytic capacitors in the primary. Check all large electrolytics in the secondary (Ie bigger that 470uF), check all capacitors around IC950 (error amp.). Most capacitors you will find are leaking electrolyte. Might be a long job!!!
(Andy Doswell)

Sony Video Model: SLV-E800
No picture - screen is empty. Sound is ok
Check IC101 (BA7630F), if video signal comes to input (pin 1) but not present at output (pin 14) then replace this IC
(Raymundo)

Panasonic Video Model: NVHD650B
Fault code F80. works occassionally then doesnt work at all
There is a plastic piece on the motor which rotates when you press play or eject. A plastic cap fits on the spindle of the motor. This slips and doesnt grip the motor hence does not turn the drive gears. Just glue or replace the part (use loctite or super glue)
(Dal)

Philips TV (A10 Chassis)
Procedure to view customer service menu
Press Mute button on handset and any button on the TV, hold for a few seconds and menu will appear
(Joe)

Ferguson Video Model: FV105HV
Vcr dead, slow oscillation in p.s.u
Replace CP007 and CP008 close to the U4614B (Found this tip posted under Thomson VPH6601 which seems to have the same PSU)
(Anonymous)

Philips TV Model: 32PW6526-05 (SA10E Chassis)
Procedure to exit child lock with pin unknown / "locked" displayed on screen
Switch set on, press menu, select feature and press enter, select parental lock and press enter, then enter the code 0, 7, 1, 1 twice, the lock should now have cleared
(Josh)

Fermendi TV (F19 Chassis)
Procedure to invoke service mode
I have used this method and it works (supplied from the makers manual). With tv off, hold volume up button on tv, switch tv on and keep holding volume up button whilst pressing standby on remote (this must be done within 4 secs of switch on) at no time let volume go, press the yellow memory button on the handset to store
(Steve Taylor)

Toshiba TV Model: 28W23B (11AK37 Chassis)
Procedure to enter the service mode
Press the menu button then 4,7,2,5
(Josh)

Toshiba TV Model: 28W23B (11AK37 Chassis)
Picture displaced vertically, picture too high or low
This problem was cured by entering the service mode (menu then 4,7,2,5), then pressing the green fastext button to access geometry settings, selecting VP1 (vertical position) and adjusting as necessary
(Josh)

Sony TV (BE3D Chassis)
Procedure to enter the service mode
Press standby, i, 5, vol+ and tv (TT should now be displayed on the screen indicating the set is in the service mode)
(Josh)

Grundig TV (CUC7301/3 Chassis)
Power supply blown
This is often caused by a dry joint at C669 in the snubber network but also check the mains bridge rectifiers reservoir capacitor (47uF, 385v) for o/c, this item is not included in the ususal p.s.u repair kits and if not checked may result in a repeat blow up !
(Josh)

Sony TV Model: KV32TS20
Dead no click, Q502, Q601, Q602 shorted and blown fuse 602
Change all the above parts and also check R647, C512, C525, D607, D608, D609, D610, D622, VDR601 off primary side of T605. I`ve also found T605 bad too. ToughDog, Sony has bulletin out on this model
(Dwayne)

Sony TV Model: KV32TS20
Dead, good tip that I always use to save changed parts after replacing Q502, Q601, Q602 and blown fuse 602
I hook up 100 watt light bulb across fuse conection, then turn on tv, if light is very bright you still have a short. You saved the parts you changed, light should be dim and or blinks
(Dwayne)

Sony TV Model: KV27TS20
Intermittent video or snow
Resolder points A, B, C, D in tuner PCB, check cold solder on tuner shield 2-106-349-21
(Dwayne)



Vestel TV (11AK19 Chassis)
Dead, ticks from switch on
Lop transistor dead short (BU2508AF) also check cap (12nf)
(Jonny)

Bush TV Model: WS6671 (11AK19 Chassis)
Very low width and bowed verticals,no ew correction. R626 o/c
C630 (390nF, 300v) faulty, located next to scan socket. This fault can also be caused by R629 (2R7 fusable) o/c. In my set C630 was dry-jointed but not faulty. Check generally for dry joints in the E/W and PSU areas. Note that R629 is a safety component
(Ian - Brighton)

Ferguson TV Model: TX98 (TX98 Chassis)
Intermittent tripping and switching to channel 1
Replace IC11 (TDA8138) 5/12 volt regulator ic
(Steve - Comet service)

Metz TV (11AK20 Chassis)
Switches to standby when hot
Check 4.00Mhz Xtal
(Wayne Haverson)

Sony TV Model: KV-M1400D (BE2A Chassis)
Retrace lines on picture, 60V on RGB transistors
C700 (100nF, 250V) seems to be leaky, but main problem is R723 which had gone from 27R to 1.2M, both on CRT board
(Anonymous)

Sony TV Model: KV-M1400D (BE-2A Chassis)
Dead, after replacing ic601 (STR54041) and Q601 (BC637) standby led blinks red twice, then blank, no HV
Replace fuse p801 (ICPN15 - 0.6A 50V, TO92)
(Anonymous)

Tatung TV (F Series Chassis)
Starts up with black raster, then shuts down with LED blinking 4 times
This is the micro telling you that the auto grey-scaling procedure has failed. Change resistors R909, R913 & R922 (180k, 1%) on crt base PCB. You will probably find that all these have gone high
(Rob Hancock)

Matsui TV Model: 1408T
Locked out by incorrect pin number being used - and Dixon's want £25 to do this!
1: Press standby on remote control to switch TV on
2: Press volume minus button on set front, while pressing 7 on remote control for at least two seconds, until 'OK' appears in the middle of the screen
Thanks to my son who has no TV training at all!!
(James)

Panasonic TV Model: TX28W3 (EURO 1 Chassis)
No raster, only heard a pip from speakers that went after a few seconds
C623 and R628 changed
(Nima)

Grundig TV Model: ST70-460 (CUC4635 Chassis)
Intermittent start up and tripping
Dry joint on R636, vertically mounted 4.7 ohm wirewound in sw mode circuit
(Peter Nutkins)

Nei TV Model: 2031TX
No Power
R802 open circuit. Unknown device (poss. Thermistor). Replaced with 15K, 2Watt
(Anonymous)

Sony TV Model: KV-2565MT (SCC-E64P Chassis)
Horizontal output transistor Q802 goes short repeatedly
C818 (1uF, 250v) had lost capacity, replaced C818 and Q802 and unit was ok
(Fiesta Service)

Sony TV Model: KVD-C21MF1 (SCC-K68A-A Chassis)
No sound and screen not appearing, B+ ok
No input on pin 5 of IC301 (MC44002P), R339 had failed, once replaced the unit was ok
(Fiesta Service)

Bush TV Model: 28ZKF
Set powers up but no sound and blank raster
RF10 o/c (33 ohm)
(Rod)
Panasonic TV Model: CT20G12V
Dead
This was found to be due to the STR58041 chip

اعلانات

الصورة الرمزية ashefsamy
ashefsamy
:: عضو ماسي ::
تاريخ التسجيل: Feb 2007
المشاركات: 1,571
نشاط [ ashefsamy ]
قوة السمعة:
قديم 11-06-2010, 01:27 PM المشاركة 2   
افتراضي


الجزء الثانى


Philips TV Model: GR2.4AA (GR2.4AA Chassis)
No picture, just black screen
Check R3414, an SMD chip on the CRT board. There could be invisible bad solder joints
(Kalle Birgersson - Sweden)

Philips TV Model: TX2112 (U5N Chassis)
Sound mutes for too long when changing stations (up to 30 secs)
The MAB8441-T005 was faulty (no longer available)
(Anonymous)




Sony TV Model: KV-HF14M80 (BG-3S SSC-U21F Chassis)
Dead in standby mode, no primary voltages, led orange
Change uMICOM CXP86449-627S
(Brij)


Thomson TV (ICC17 Chassis)
Picture lacking in contrast and brightness
The symptoms suggested a beam limiter fault, replacing transistor TL02 (BF422) which was found to be leaky produced excellent pictures
(Kind Regards - LB)

Philips TV (L6.2 Chassis)
Power supply will not start up
Resistor 3506 (0.33 Ohms, 1w fusible) had failed, a replacement brought the set to life
(Kind Regards - LB)

Sony TV Model: KV25K5U (FE1/FE1A Chassis)
No sound or vision, front led flashing
Replaced line output transistor, resoldered dry joints on driver transformer. Also check for any other poor joints in this section. Have used a 2SD1878 as replacement, This seems to work ok as the Sony original is very expensive
(A. Gould)

Sharp TV Model: 6GF63H (DA-50W Chassis)
Noise from speakers / center speaker even with the volume set at minimum
Replace IC1300 (BA4558F 8pin smd) and IC1302 (TDA7480) which are both located on the central speaker amplifier plug-in PCB
(J.C.)


Sanyo TV Model: Spectra 2000
Picture had only wide screen effect
Found set on the street ! beautiful little 14" tv, still looks like new, replaced 33uF, 160v cap in power circuit as it was bleeding its guts onto the pcb, has worked perfectly ever since !
(Ronyec Andras - Montreal)


Matsui TV Model: 1420T
Dead set, P.S.U. not firing up
Resistor R511 (1.8M) open circuit
(Anonymous)

Salora TV(J Chassis)
Start up problems
Replace CB712 and CB726 in the power supply. Both are same value (4.7uF, 50V)
(Anonymous)

Goldstar TV Model: 20A80
No picture, FR406 ok
Check the video output amplifier stage for failure
(Zubair Almas)



Sony TV Model: KV2020
Picture is folded over at the top and curled at the top left hand side
Replace C559 and C560
(Anonymous)

Sony TV Model: KV1412
Noisy picture
Replace relay RY481 on S2 board
(Nigel Burton)

Sony TV Model: KV1412
Vertical line at the left of the picture
Replace L506 on A board, replacement part number 1-407-366-00
(Nigel Burton)

Sony TV Model: KV1412
Set reverts to standby mode when switched on, because IC003 does not reset correctly
Replace IC003 on A board, IC type CX523013P
(Nigel Burton)

Sony TV Model: KV28WS3 (AE3 Chassis)
No sound or picture, in protection after 2 seconds
No 6.5 Volt on G-board. Fuse resistor PS605 is broken on G-board. Cause: bad contacts
(Jan Post)

Philips TV (ANUBIS A-AC Chassis)
Low 95v rail, (35v)
C2530 open circuit completely
(P willis)

Panasonic TV Model: TX28W3 (EURO 1 Chassis)
At switch on a strange sound comes and goes for a few seconds, no sound and vision
Check R622, Q624 and T639
(Anonymous)

Grundig TV (CUC5310 Chassis)
Dead, no shorts found
Look for dry joints on the scan coil plug (may not be visable) also resolder the 12v and 5v regs
(Anonymous)

Sony TV Model: KV21GMR1 MkII
No raster, flyback squeeking
Check the damper diode, in my case it was leaky, also check the electrolytic capacitor connected from the collector of the pin out trans.
(Rams-Dumaguete)

Rca TV Model: F19220BK (CTC175L2 Chassis)
Erratic screen / intermittent, eprom causes multiple possible symptoms, clicks on/off, tuner, you name it !
Mass defect caused by bad solder in tuner, once fixed will probably last forever. Resolder tuner wrap-around groundings and all pins under tuner shield (bottom), if no success suspect a corrupted eprom
(Anonymous)

Sony TV Model: KV20TS20
Snowy or intermittent picture, makes popping sound
Solder all coils in stand up board and tuner
(Anonymous)

Philips TV (A10E Chassis)
Randomly switching to scart input when the programme output from the tuner should be displayed
This is now becoming a common problem, the cause being the painter chip IC7064 which is located on the small signals panel, there are 8 different versions but only 3 common versions
(Anonymous)

Sony TV Model: KV-M21TU (AE1 Chassis)
Intermittent rolling and loss of luminance, improves as set warms up
Dry joints on tuner / IF board
(Thunderdunc)

Sony TV Model: KV-21FS100 (BA6 Chassis)
No power, R640 open
Change R640, IC600 and associated electrolytic capacitor
(Iván Meléndez)

Philips TV-Vid Combi Model: Televideo
No vcr transport functions via remote
This is the symptom when the remote control has switched from the correct VCR1 mode to the VCR2 mode (usually due to low battery voltage or the batteries being replaced), to rectify the situation hold both the stop button and button 1 together for 5 seconds, alternatively for different remote versions holding the stop button and button 2 together for 5 seconds will rectify the problem
(Josh)

Toshiba TV Model: CF3060K
Problems with screen size
Look out for 2 x 2.2uF electrolytics (sometimes red in color)
(Anonymous)

Daewoo TV-Vid Combi Model: DVT-1482P (CP310 Chassis)
Totally dead except for a few rapid flashes from the green led at switch on
C811 a 100uF, 16v capacitor in the power supply was the cause, it is located next to the chopper transistor's heatsink. This is the same TV/Video as the Goodmans TVC14VP
(Rob Marshall)


Sanyo TV Model: CEP3011V-30 (A1-B14 Chassis)
After switching on, no longer able to switch-off with remote control, standby light comes on with sound muted. (Original remote control: RM-700)
Opto-coupler PC113 faulty
(Esohe)


Sony TV Model: KV-M1400 (BE2A Chassis)
Insuficient vertical deflection. Line rolling on top of picture
Replace ceramic capacitor C524
(Pm)


Grundig TV Model: M70-490/9 TEXT (CUC3800 Chassis)
No sound, picture ok
When shifting up the channel frequency using the fine tuning, a very weak sound could be heard. Replaced the sound IF demodulator chip U2829B(IC2110)
(Rui Loureiro - Portugal)

Sanyo TV Model: CEP2190M
No sound
IC901 (TDA4935) blown due to excessive supply voltage, capacitors C619, C623, C810, C600, C601, C859 defective. Also verify R822
(Jeroni Paul)

Jvc TV Model: AV25S1EK
Field collapse
Resolder TDA3654 as joints appear good but on application of soldering iron show to be dry
(Pj)

Mitsubishi TV Model: CS40503
Sometimes will not power up, missing 15 volt standby
Replaced D982 and C982, both leaky
(Kami)

Sony TV Model: KV24FS100
Will not power, led blinking
check R640 (1K 1/4w) if open replace ic600 (8-759-670-30)
(Kami)

Sharp TV Model: DV6632H (4BS-C Chassis)
Led changes from green to red, fails to start up, no EHT but secondary voltages in psu ok (150V ok)
Check Q601 and Q606, these are Q600 LOPT drivers, there should be 2V P-P on base of Q606 and 150V on collector of Q601, replace Q606 with a BC182 (check pinout)
(Steve May)

Matsui TV Model: 25M3
Failure to start up, led pulses
Check for dry joints on R541 and D436 located next to L.O.P.T
(Niall)


Sharp TV Model: DV7045SN
No vertical deflection
R615 open (0.13 ohm 1/2W). Also resoldered many bad solder joints
(Jeroni Paul)

Toshiba TV Model: 175T9B
Line tearing and incorrect field lock when cold
47uF electrolytic AGC decoupling capacitor inside tuner/if unit
(Colin fairfield tv)

Philips TV-Vid Combi Model: 14TVCR240
Poor tape transport, tape is crumpled, upper or lower side gets rippled
Replace the capstan roller, if the tape transport is still not smooth check the guidepole (between the audio/control head and the capstan), tape must touch border-ring. Adjust the audio head position (screws marked A and T)
(Anonymous)

Bluesky TV Model: TDX-70 (11AK19 Chassis)
HT low / missing
Q608 (BU2508) dead (short-circuited). Needed replacement. That's all...
(Anonymous)

Panasonic TV Model: TC2195DRS (Z3T Chassis)
SMPS noise. Low volt and high current on Usyst, no screen or sound
FBT TLF15606F
(Anonymous)


Sony TV (FE-1 Chassis)
Procedure to return EEPROM to factory default settings
Select programme 59, enter the service mode and at the TT-- prompt enter 49 then 24 (for UK)and 08 then switch off at the mains
(Anonymous)

اعلانات اضافية ( قم بتسجيل الدخول لاخفائها )

الصورة الرمزية ashefsamy
ashefsamy
:: عضو ماسي ::
تاريخ التسجيل: Feb 2007
المشاركات: 1,571
نشاط [ ashefsamy ]
قوة السمعة:
قديم 11-06-2010, 01:40 PM المشاركة 3   
افتراضي


الجزء الثالث


Sony TV (FE-1 Chassis)
Intermittently displays bright red/green/blue raster then shuts down with led flashing 2, 4 or 5 times
Amazingly this was due to the CRT being faulty !
(Josh)

Philips TV Model: 33SL5796/16B (FL 1.0 Chassis)
Snowy picture specially in VHF band. After about 5 minutes, picture snowy in all bands. About 10 minutes after switching on, no picture nor sound, just snow on the screen
Replaced the TUNER/IF. Original code was FQ816ME which is no longer in production. Replacement code is FQ916DME
(Rui Loureiro - Portugal)

Sony TV Model: KV-21RXR1
Excessive brightness/ brightness control reverses its function
When setting brightness to minimum the pic became very bright, setting to maximum the picture became dark ! Found that R301 (270k ohms) near the jungle IC was o/c(Anonymous)
Sony TV Model: KV21M1D
Picture disapears a moment after changing program. Raster/OSD ok
Replace TDA9806 ic
(Apostol)
Goldstar TV Model: CBT-9745 (PC91A Chassis)
Attempts to start up. When main switch is pushed ON, relay coupling and decoupling (on-off, on-off)
Replace: C805 (47uF, 50V) next to the TDA4605 and C801 (1uF, 50V)
(Zoran)
Goldstar TV Model: CBT-9745 (PC91A Chassis)
TV dead. PSU ok, led lit. When button pushed on remote the LED goes out but set does not start (Missing HF voltage)
Replace: C417 (1uF, 250V) Elko for HF oscill. (next to HF trafo)
(Zoran)
Philips TV (FL1.1AA Chassis)
Int shutdown with lights flashing
Check the 18v zener D6376
(Anonymous)
Philips TV Model: 20PV164-05
Vertical frame collapse
Change vertical output drive IC and nearby electrolytic capacitor
(Bugtom)
Nokia TV (FX Chassis)
Left part of picture missing after fitting vertical modification kit
Make sure you have fitted the extra capacitor between pins 8 and 9, instead of 10 and 9. Fitting incorrectly will destroy the sandcastle pulse and make the picture appear strange
(Kalle Birgersson, Sweden)
Nei TV (CE25 Chassis)
Dead - PSU clicking
Dry joints on D116 and C131 causing blown BU508A
(Andy Fraser)
Grundig TV (CUC5310 Chassis)
Picture int disappears leaving snow on screen
Resolder the Xtal in the tuner
(Kalle Birgersson, Sweden)
Schneider TV Model: STV630UK
Frame Collapse
Replace IC401 (TDA8177F) and resistors R325, R326, R327
(Jim Ross)
Matsui TV-Vid Combi Model: TVR185
Int sound
Check voltage on sound IC, if it drops with high volume change C620 (1000uF, 25 vdc)
(Arl)
Sharp TV Model: 66GF-63H
Blank grey raster with flyback lines,sound present and ok
Check pin 2 on connector H on tube base for 12V if high then check Q912 (BC337) for o/c
(David Mclellan)
Sony TV Model: KF60XBR800
No picture no sound timer light flash 44 fast 45 then 5 times then 5 times
Replace power block part # 1-468-510-11
(Mervin)
Toshiba TV Model: 198X6M
Horizontal output continues to short
Check capacitors C403 and C408 (both 50v) these two caps tend to change capacitance
(Aze - Philippines)

Philips TV Model: 28PW6005 (A10 Chassis
)

Changes to ext 1 when watching tv (ok with video input)


Painter ic IC7064 failed on the ssb (small signals board)


(Anonymous)


Thomson TV Model: RP46


East-west and north-south bowing. Really bad convergence


The extra power supply is not working. Check R18 on primary side. It should read 220Kohm


(Kalle, Sweden)


B and O TV Model: LX5500


Sound disappears from time to time


If there is sound all the time via scart, but problem with both mono and stereo via tuner, check R137. It is a 4k7 pot on the tuner board


(Kalle, Sweden)


Rca TV Model: F27442 (CTC203AD5 Chassis)


No power, all standby voltages ok


Replace the guide plus. is located to the side of the tuner


(Fher)


Bush TV Model: 2071NTX (11AK19 Chassis)


Black screen from tuner but OSD (menus and channel no.), teletext and sound work normally


Q500 and Q504 blown, replacement cured fault. Removing R508 also restored picture. Fault puts TDA8840 in RGB insertion mode continuously, so separated RGB input might still work


(Joe Kelleher)


Magnavox TV Model: RP2781 C101 (27X105-00AA Chassis)


No vertical deflection


If resistor R445 (1ohm) has gone open circuit this may cause IC550 (LA783x) to also fail. Replaced both IC550 and R445


(Daniel)


Sony TV (FE-1 Chassis)


Procedure to display past error codes and the number of times they have occured (particulary useful for ongoing intermittent faults)


Enter the standby mode then press the on-screen display button (i+), 5, volume down, and finally the tv button. Note: the error count can be reset by pressing 8 then 0 on the remote control





Hitachi TV Model: C1714T


Frame collapse, causing set to go dead, also can cause the regulator transistor, to go s/c. BUT12AF. H.T. unstable


Check R951 (39K) goes high, in this case 65K, causing HT to go high


(G3xxr)


Philips TV (GR2.1 AA Chassis)


Poor picture quality from CVBS EXT1 and EXT3. Low intensity high saturation. Loss of sync. Shock and temp dependent


Dry joints on SMD resistors 3014 and 3019 on IF/Sound module other side of encapsulated TDA2549


(Choc's maker.)


Sony TV Model: KV-A2923


Hitachi TV Model: C2846TN (311 Chassis)

Frame collapse or dotted line






(Josh)


Sony TV Model: KV-E2543E


Set goes to V protection mode (led flashes 13 times)


Check if there is saw signal at STV8379. If there is no signal, suspect dj in connector links between both motherboards, especialy the one very close to plastic frame


(Jose Carlos Pinto - Oporto)


Toshiba TV Model: 2505DB


Stretched frame or frame collapse


Replace modification diode 570 on copper side


(Anonymous)


(Jimmy n)


Sony TV Model: KV-A2923


Set starts, horizontal and vertical deflection work, HT ok, crt heaters ok, but no sound or picture


I turned the G2 voltage up and noticed a white screen with flyback lines, frame ok. I detected two badly soldered double diode rectifiers in the secondary part of the power supply ! I checked all other joints, and everything was ok !! success


(Anonymous)




Philips TV Model: 14PV220 (EPSILON 2001 Chassis)


Dead (Totally)


SMPS Chopper IC 7310 (MC44608 P75). I had no output from pin 5 with start up voltage pin 8 OK at 290V. If start up missing check start up resistor 3335 (1K). The only source I found for IC 7310 was Philips direct, part number 9322-143-51682, cost ~ £10


(Paul van gelder)



Philips TV Model: 21GR2751 (G90B Chassis)


Stereo set with no sound off air, maximum volume produces low hiss, some sound possible if station is detuned slightly. Sound via SCART is ok


Replace IC U2829B on audion panel


(Bill)



Nordmende TV Model: GALAXY 55 (ICC8 Chassis)


Dull picture


Replace (TT33) on tube base


(B goan)



Nordmende TV Model: GALAXY 55 (ICC8 Chassis)


Not tuning into channel


33v missing (RH040) o/c


(B goan)



Telefunken TV Model: PALCOLOR F531 (ICC9 Chassis)


Stand-by led flash but set does not start


Replace: TL19 (BUH517), DL21 and DL22, CL21 and CL22


(Anonymous)



Orion TV Model: TV2501B


Dead set or will start up and shut down


IRD shorted or leaky


(Clonch tv)



Sony TV Model: KV2062


Dark picture, No brightness control


1000V+ Missing caused by open circuit IK resistor Near to FBT


(Imran Khan)



Sony TV Model: KVFX29 (FX Chassis)


White horizontal line (no vertical deflection)


Check / replace R548, R549


(Fabio)



Goldstar TV Model: CB20A86


Dead, F801 blown


Check short circuit PTC coil (Degauss) short Diode on main Cap+ Check for failure of regulator IC801 (STR5707), Also check H.output D1651 for short circuit


(Imran Khan)



Toshiba TV Model: 32ZD09G (C00S Chassis)


Procedure to enter the service mode


Press the mute key on the handset once, then press the mute key for a second time but hold it down while also pressing the menu button on the set


(Josh)





Samsung TV Model: CB7230WT


Power supply flutters and standby light dims out


Replace mains filter capacitor (220uF 400v), also make sure the 4 capacitors in the primary are replaced (if they havent already been)


(Anonymous)





(John Carey)


الصورة الرمزية ashefsamy
ashefsamy
:: عضو ماسي ::
تاريخ التسجيل: Feb 2007
المشاركات: 1,571
نشاط [ ashefsamy ]
قوة السمعة:
قديم 11-06-2010, 01:52 PM المشاركة 4   
افتراضي


واخيرا اليكم الملف كامل للتحميل ملف دوكمنت وشكرا :




الصورة الرمزية احمد حمادي
احمد حمادي
:: مشرف ورشة التلفزيون ::
تاريخ التسجيل: Mar 2009
الدولة: فلسطيني/ لبنان
المشاركات: 6,655
نشاط [ احمد حمادي ]
قوة السمعة:
قديم 11-06-2010, 02:23 PM المشاركة 5   
افتراضي


اخي مهندس ashefsamy
بارك الله بكم على
كل ماتقدمه للمنتدى
وندعوا الله العلي القدير
ان يبعد الكرب عنكم
وعن سائر الاخوة
تقبل تقديري وتحياتي
لشخصكم الكريم


tarek3d_rabee
:: مهندس متميز ::
تاريخ التسجيل: Oct 2008
المشاركات: 1,752
نشاط [ tarek3d_rabee ]
قوة السمعة:
قديم 11-06-2010, 02:36 PM المشاركة 6   
افتراضي


فين الترجمة نرجو من احد المهندسين الترجمة للاستفادة وشكرا


الصورة الرمزية ashefsamy
ashefsamy
:: عضو ماسي ::
تاريخ التسجيل: Feb 2007
المشاركات: 1,571
نشاط [ ashefsamy ]
قوة السمعة:
قديم 11-06-2010, 06:35 PM المشاركة 7   
افتراضي


عزيزى الامر لا يحتاج الى ترجمة فهو اقل من قراءة دائرة فى اصلاح عطل استعين اخى بترجمة جوجل للترجمة واليك ملف مترجم دوكمنت وشكرا :


http://www.4shared.com/document/YmTaI0fe/Document.html


الصورة الرمزية ashefsamy
ashefsamy
:: عضو ماسي ::
تاريخ التسجيل: Feb 2007
المشاركات: 1,571
نشاط [ ashefsamy ]
قوة السمعة:
قديم 11-06-2010, 06:42 PM المشاركة 8   
افتراضي


تشرفت بمرورك الكريم السد الاستاذ/احمد حمادى

الذى عندما كنت اقرا اسمة ادحل الى مواضيعة للنصفح والتحميل والقراءة بتائنى وفكر لائنى اعلم انة لا يضع الا مواضيع هادفة انا سررت بمرورك الكريم ادام الله لك نعمة البصر والبصيرة والعلم .



الساعة معتمدة بتوقيت جرينتش +3 الساعة الآن: 06:41 PM
موقع القرية الالكترونية غير مسؤول عن أي اتفاق تجاري أو تعاوني بين الأعضاء
فعلى كل شخص تحمل مسئولية نفسه إتجاه مايقوم به من بيع وشراء وإتفاق وأعطاء معلومات موقعه
التعليقات المنشورة لا تعبر عن رأي موقع القرية الالكترونية ولايتحمل الموقع أي مسؤولية قانونية حيال ذلك (ويتحمل كاتبها مسؤولية النشر)