أشرف عثمان للإلكترونيات
أهلا وسهلا بكم ونتمنى أن تستفيد معنا


schematic-VIDEO CASSETTE-monitor-service manual SHASSIS Panasonic Philips SAMSUNG SANYO SHARP SONY toshiba Aiwa AKAI DAEWOO Goldstar HYUNDAI VIDEO Grundig Hitachi JVC LG Mitsubishi National NEC ORION VESTEL Corus-Repair-Plasma-LCD
 
الرئيسيةالتسجيلدخول
https://twitter.com/ashraf69osman--- https://www.facebook.com/ashraf.osman.73-- https://plus.google.com/u/0/+ashraf5914

شاطر | 
 

 أعطال وصيانة تليفزيون-Repair-TV-Oniks

استعرض الموضوع السابق استعرض الموضوع التالي اذهب الى الأسفل 
كاتب الموضوعرسالة
أشرف عثمان
المدير العام
المدير العام


عدد المساهمات : 2369
تاريخ التسجيل : 16/06/2010
العمر : 56

مُساهمةموضوع: أعطال وصيانة تليفزيون-Repair-TV-Oniks    السبت يوليو 09, 2011 1:16 am




Oniks 72TTS11-19 Ch.
JUC7.820.026-3

Composition, BP - TDA4605, TPI - BCK-46D, human resources - TDA8350Q, TDA8844
(2Y), TDA9859, TDA7057AQ, Tuner - TDQ-5B6M, TDA9178, TDA7056B, processor -
S3P8849XZZ Samsung, 24C08A, lowercase BU2720DX (D1557), TDKS - BSC68H.
Resize the image to the brightness of the plot. In the image Chorni band
fallout image line by line. The image size is increased. OSD shifted downward.
Often the label menu is not visible because at the bottom of the raster. No
memory will not start. (No indicator lights). Non-operating TDA8350Q -
overheating, bad bolted to the radiator. Burnt resistors on the VU, the
installation of additional radiators. Poor contact in the regulator SCREEN on
TDKSe.








Onyx
72TTS11-19 chassis JUC7.820.026-3 (CH-10).

Ingredients: S3P8849XZZ, TDA8844 (2Y), TDA8350Q, TDA7057AQ, TDA7056B, TDA9859,
TDA9178, BSC68H (TDKS), BU2720DX (HOT), BCK46D (TPI). There may be variations
in the composition and changes of the chassis.
Log in to the service: reset the volume to "0" by holding the
remote control «K11F-C12» click «MUTE» click on the "MENU" on the
front of the TV. Lights letter "S" in the middle of the image. Page
flipping "CAL" Joystick.
The processor will not work without a memory chip, with the inclusion of net
24S08A machine initializes.
When replacing TDKS instead of native BSC68H suitable for pinout and
tested replacement - BSC69A, BSC70E2, BSC62E. If you are installing is not a
typical problem is TDKS domotka winding "correction" 6 foot TDKS just
over 27 turns. Use low-voltage pulse TDKS direct move. In the measurement of
the output through diode vypryaminelny filtered voltage is 34 to 35 ....
TV came with a fault: narrowed screen on each side, with a fold along
the lines (large overlap in rows across the screen), right side An image can be
seen a dark translucent vertical pole 5-8cm wide. Color sometimes is, at times
b / w image. Vysvetki OSD display does not. No sound.
Usually these symptoms is sufficient for approval no row pulse feedback control
of the processor to 26 feet, forming strobimpulsa vidioprotsessora and
synchronization lines (I think because of the malfunctioning of the PLL is
zahlest lines).
Ostsilogramma not revealed the presence of the pulse line scan at R443.
Although the ejection pulse at this point simply smashing. (See picture). The
resistance line for more than 10 components after S476. Ie for housing the
pulse voltage is not planted. Consequently there was a break C476 2200pF *
1.6kV. Vypayka and check for LC-meter showed an almost complete loss of
capacity. Capacitor is replaced by a similar polypropylene.


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

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

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



_________________

الرجوع الى أعلى الصفحة اذهب الى الأسفل
أشرف عثمان
المدير العام
المدير العام


عدد المساهمات : 2369
تاريخ التسجيل : 16/06/2010
العمر : 56

مُساهمةموضوع: رد: أعطال وصيانة تليفزيون-Repair-TV-Oniks    السبت يوليو 09, 2011 1:23 am





Onyx 72TTS11-19 chassis
JUC7.820.026 (CH10).

Ingredients:TDA4605,
TPI BCK-46D, TDA8350Q, TDA8844 (2Y), MEF4052BP, TDA9859, TDA7057AQ, Tuner
TDQ-5B6M, TDA9178, S3P8849XZZ Samsung (CH12T1007), 24C08A, BU2720DX (D1557),
TDKS BSC734 040424-04107.

No raster. No indication. The reaction on the remote is. The sound is. Heavily
charred resistance VU by PK (JUC7.820.238-1). Replacing the S2688 VU setting
them on radiators. After this screen appears. The problem may also manifest as
the absence of one color or appearance long after the TV screen. Payment in
local trans-ditch VU dark from overheating. Optional replacement resistors VU 3
pieces of 12kom to MLT-2. Install them on the racks as high in older Hitachi
models, since such changes need to set the accelerating voltage on the CRT. It
is better to adjust the accelerating "the eye". I'm doing so removed
the minimum brightness. Then add in the accelerating TDKS before the Loch in
dark areas, then that would just tidy up the dark areas of the Loch and is not
visible. Controlling cathode voltage kinescope.
On the bright areas of the picture as it breathes playing brightness and image
size. 10.0 * Fail on 250V circuit + B. Replacement of 22.0 * 250. The machine
22.0 * 250 + further along the chain in the immediate vicinity of the
installation NOTE





_________________

الرجوع الى أعلى الصفحة اذهب الى الأسفل
 
أعطال وصيانة تليفزيون-Repair-TV-Oniks
استعرض الموضوع السابق استعرض الموضوع التالي الرجوع الى أعلى الصفحة 
صفحة 1 من اصل 1

صلاحيات هذا المنتدى:لاتستطيع الرد على المواضيع في هذا المنتدى
أشرف عثمان للإلكترونيات :: قسم الصيانة - Repair-TV :: قسم الصيانة - Repair-TV-
انتقل الى: