أعطال وصيانة تليفزيون-Repair-TV-SONY

[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

Sony chassis AE-1


When enabled, the device tries to run, even there is high, then the
power supply is turned off, the LED on the front panel goes out. The reason for the resistor R522 100K (sometimes worth 10kil check).

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Sony KV-DX27TD chassis AE-1


Gri turn, burns and R822 TV goes to protection. Replaced
the PSU and line Konder, soldered all suspected sites, transformers
feet, pay attention to the diode ZD402 (RGP02-17) 2000V, 0,5 A. He leaks. After all these procedures the TV working.

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TV SONY


TV came with a punctured HOT. after replacing TDKS crackles, and the TV goes into STBY. LED flashes twice. after replacing TDKS, will join TV began, there was a high, but once again goes to STBY. LED flashes twice. After much searching and testing in lower-case decided that there is order and began to seek protection in the circuits. Luck smiled at me. Found that Q574, 2SD601, SMD escape transition B-E, about 86 Ohm. TV switched on, the sound is no picture. Opya a telescope and look and look. Finally it got to the IC301 CXA2140S video input is, there is no escape. indicated in the diagram on the other CXA2060, although the original scheme. I
changed it, and what do you think - is working, there are sound and
picture, but the picture pincushion distortion, but it was easy -
replace Q532 2SK2251 and it worked.

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SONY 25M1D ch.BE-3B


Is a sound and OSD, no image.


Check for 5 V on the buses ABL and EHT, card connector A , near the output PROT. Malfunction of breakage caused by resistor R829 22 KOm.

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Sony KV-28LS60U ch. AE-6B


flashes 14 times in the manual is listed as Backend error


Error 14 climbs, will not start when the main power supply. As a result, does not feed on 9V CXA2100 video does not meet the processor bus and thus flashing an error. Check whether the food served at the main power supply shall operate relyuha and secondary circuits of power to go! If relyushka works should check R6048, R6010, R6033 330kom 0.25Vt in a primary power supply.

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TV Sony ch. BE-3B


greatly narrows the horizontal raster, no focus, lost sound. Voltage SMPS with significantly reduced. Trouble was shown periodically. The reason for STR-S6708: warmed dryer, found the problem, replaced. TV operates two month, until there was no failure.

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SONY KV-C2911D, Sh. AE-1


came with such a defect: the TV is turned, and the OSD is high, but no images, with the addition of SKREEN no change. Replaced all the e-LTL in a row, there were some changes videoprots.SAA5231. When you switch from Dej. regime, there was a raster with flyback lines and a small pillow. SKREEN remove the original position (to remove the Loch) all okay, just a picture on the screen is dark. All adjustments are put on the whole, there is a change, but still nebolshie.I that, when off. and incl. screen is not disclosed, and all add SKREEN povtoryaetsya.Podozreniya fell on kinescope. Old delved into search forum and came to the conclusion-tube. Replaced by another picture tube with the same model TV (fortunately was at hand). Include, but are okay, the question has been exhausted.

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SONY KV-M2540K Chassis BE-3B


image is stretched and the additives in the pillow. Torment well, calculated before, the transistor Q800, call normally, under naprugoy breaks. Also
confusing was shot down that the scheme based on the Q801 indicated
0.6volta and match, and if fed to Q801, the picture becomes less, but
the pillows were. The fact that the image grid "broken" does not obrashayte attention, it is my generator gives a picture (sometimes).

[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

Sony KV-29X5K chassis: FE-1S SCC-Q03A-A.

In the transition to RR PSU starts to relax to the start-stop mode. On the narrow-minded language of "gurgle." There is congestion on Canal + B. Suspected TDKS because with a short base-emitter HOT start is fine. Vypayany
TDKS 859882200 9 IOM showed leakage between the terminal block body
ABLi TDKSa resistors (the breakdown of high-voltage diode in the circuit
TDKSa ABL). When installing a new TDKS the image enlarged
horizontally and vivid images the size of plots varies about 5 cm, while
pincushion distortion is observed on the sides of the picture.


Since there was a breakdown in the chain TDKSa ABL has been audited by the line. Was found burned corps R518 4,7 kom chip, and R302 22kom chip input ABL IN IC301 CXA2060AS. After installing these resistors TV operates in normal mode.

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SONY KV-25XS ch. AE-1


flaw: after a while and only after changing the channel disappears reception. tuning voltage on any channel is 30V. If the channels do not switch, works fine. The efficiency was restored only if the network connection and a short respite. Solution: L807 broke off the throttle on the food chain-30V IC memory chip 003 M58655P. At the moment of switching on the second leg napryadenie dropped to - 15V.

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SONY KV-29FX30K, Ch. FE-2


When the blue screen with the Loch. Checked the food chain and up to 54 percent of legs - all clear. 29 and 31 feet TDA9394H percent call for housing 61Om. Replaced on TDA9394H/N1/5/0583 TDA9394H/N1/5/1031 (sony). After replacing the TV work properly.


The service adjusted the geometry.
Sony KV-M2155K chassis BE-2A
There is no clear horizontal sync. Soldered lowercase, 10 minutes and worked again

there is no synchronization. By visual inspection under a magnifying glass discovered nepropay "earth" 11 O FBT. Removed and added auto search. No color in PAL. Replaced

container trimmers ST332. It's OK.

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Sony KV-25R2R
little chemistry: resistor trimming on board CRT (which is lower in the
chain-1000B) to unscrew clockwise until it stops (when viewed from the
tube). Flashing stops, but the picture is whitish. Rotate counter-clockwise back to achieve priemlimoego image and lack of blinks when you turn.


PS TV brought to the board for Chinese pomoyki.Kuplen 150r. I understand that the most likely picture tube, but for experiments divays quite suitable. Sent Escold

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Sony KV-21T1R chassis BE4A


Ingredients:


percent-SAA5288ZP/014


AMP - ST24C02 6


PD - STR-S5706


VIDEO - MC44002P


IF - TDA9806


FRAME - TDA9302H


SOUND - TDA1013B


HOT - S2055N


start with the fact that brought the telly in the position of: turn to
the duty room in working rezhym pages starting pulse is present, the LED
is not lit as well and should not migaetno with no picture and I almost
forgot to run really hot line transistor, the addition of reg SCREEN
barely Visible picture narrows on both sides, measurements showed that
all naprugi in BP in normal but secondary to TDKS surprise: for example
159v cathodes, eg SCREEN at the end of suffixed regulator 144B, the
intensity of 1.8 in a frame on the miracle .... napuga normally 28V,


in lower case and checked all Konder both the diode and snubber which
korrektsii by replacement of TMS and to shorter sinhroprotsa found
nothing in the end alter memory and imagine everything was back to
normal conclusion from this: to begin repairs to be danngo tv
pereshivkoy of memory.

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Sony KV-SW212M81 ch.BX-1


increased the size of the horizontal by 30%, after a while, "the TV, and zavonyalo smoke, turn off" - the customer. YES watch until it stops. Usoh S841 0.1 * 250 was 8200pf, D817 broken and set fire to a fee, Q805 C5885 circuit. Cleaned
and washed under seal D817, diode, and raised over wired
pechatyu.Zamenil S841 and Q805.Vklyuchil size and rate of correction. It's OK.
Sony KV-2584MT ch.GP-1A
in operation for 20 years. Blurred images, sound, color and OSD has no autotuning. Vypayal tuner, soldered all the inductors and "earth", there was a clear, beautiful images and auto. Put it on the run after 35 minutes start to disappear video, when tapped, or the reel unit channel video to appear. In the radio channel found nepropay peremenika "AGC" and the capacity of 22 * 16B. Run for 4 hours. It's OK.

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Sony Chassis BE-2A


Otsutstvie of the screen, on IC302 TDA3505 10vyvod truncated form strobimpulsa SCP due to leakage of D503. After replacing the diode was all OK

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Sony KV-21CT1K chassis BX-1S


fault - no image, no configuration. Faulty tuner BTP-AC421. Following
the tests, set the tuner KSH-148EA (based on TDA6508ATT), just in case
between pin 1 (AGC) and 8 (ADC) of this tuner naveshen divider: vyvod1 -
120 ohm resistor - pin 8 - 330 ohm resistor - "earth" (probably is
superfluous, because in the original pin 8 is not involved). Settings in the service was not necessary, improvements in tuner, too. Also auditioned tuner TDQ-6L/125S, but did not come - CF is, there is no UHF. This chassis through the service any model of the tuner or IF is not configurable.

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Sony (on label)




In fact, a clone of Samsung chassis LC-2191A03 (with partial mismatches scheme).


The private sector, a narrow band - broken LA78040. Replaced LA78040, checked the "rocking" BP, and then run for 4 hours and gave. After 3 days return - the same thing. Eliminated
as follows: LA78040 replaced by LA78045, increased from 1 to 2 ohm
limiting resistor to +27 V and Zener diode placed at 1W 33B, after the
resistor. No refunds.
From C1-65A Pre, to replace something, there is a need to change the resistor 100 in the chain 150Kom secondary stabilization. Burnout
LA78040 and more stable operation LA78045, due to the fact that the
maximum allowable power in the first 70, second at 92 volts. Conclusion - to repair the power supply.

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SONY TV with built in power supply STR 54 041


Repairs of BP, if naprugi overstated, and the replacement chip does not work, replace all glass diodes, they flow under load. Tester were not calculated, only replacement.
Information from the party - Lenin

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SONY AE-6B chassis


No sound or with an antenna or by low inputs. When adjusting the volume line moves back and forth a couple of divisions. Short bursts can be set from 0 to the end of the scale. 5B, 8B are normal, with no ripple. At 34, 37, 38 foot MSP signal is. Memory,
firmware changed sputtered tracks sounded - no defects found, just in
case duplicated bus wires from module M to the MSP. At 21 feet (RESET) MSP skips voltage of 0-1V with a frequency of 3 Hz. The sound came after RESET disconnected from the module M and pinned to +5 V through Konder 22mkF.

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Sony KV-M2101K Chassis BE-2A ,


TV spent 20 years with no repair and no longer included. After propaivaniya TV card to work, but it turned out that the remote only works from a distance of 30-40 cm from the TV. The hosts have bought a new board, thinking that the remote was dead, but the new board worked well. It turned out that the problem in trim sensor: E defect. capacitors: 1mkf and 3.3 microfarads. After replacing them with both the remote started working with 5 meters!

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SONY KV-21DK2 chassis G-3E


TV came with a punctured notes. After replacing the D1878,
as well as S513 (1 * 50) TV work, but it broke the top of the screen
image (horizontal sync failure). This issue is addressed by replacing S875 (4.7 x 50) in line scan to look for a long time (usually a capacitor in red).