Philips 28ML8976, chassis FL1.1
Fault: The screen is white, Loch around the field, there is no picture. With
vigorous tapping board and management of video image appears completely normal,
but disappears when turned on again. The reason - the lack of three-level
pulses from the emitter of the transistor 7403 due to a crack in the path
between its collector and the bus of "land" on the board and power
sweeps.PHILIPS 21PT5457 chassis L01.2E.AA
First had to restore an abandoned 2 years ago television SAMSUNG. TV could not
wait any criticism of the above patient.
SAMSUNG earned. Luck was encouraged.
Today, after all substitutions and composition of such samples -
7402 - BUT18AF 1000V/6A/32W
6404 - BY329X 1500S 1500V/6A
6411 and 6412 - replaced by one BYW95C 600V/3A
Note. The original 7402 scheme BUT11APX 1200 (Sheet A2 LINE DEFLECTION) is
depicted with built-in resistor and the damper diode. In all views datasheet
nothing built there. BUT11APX 1200 from BUT11AF BUT18AF and differs only in the
high voltage to the-E = 1200V. It is believed that K-E = 1000V enough.
Cut a path PHILIPS + B near the FBT, and parallel capacitor soldered the lamp
Inclusion - the lamp is lit, + B = 95.6V, M_AUX = 12.4V (sheet A1 Power
Supply), based on 7402 pulses no lowercase.
Turn on / off with remote - + B = 95.6V / 27V. The lamp is lit 40Vat / dull
Lowercase pulses under the scheme are fed through a capacitor 2411 47mFx50V.
The board is not a dirty green and gray. Vypayanny, it shows instead 3mF 47mF.
Usoh between two hot coils.
( ……………2411……………2411……………2411…………….. )
I put a new 47mFx50V - normal and inclusion with lamp and without!.
No lights on / off with remote - + B = 94V / 71V.
Most likely to BU1508DX will work just fine and with family details and other
Thank you for the constructive criticism
Moral of the story ... Normal work week.Philips 14PT1352/5S ch.
Processor TMP47C1637N-RA18. The image is normal, but the sound is distorted:
voices are muffled and lisp, is clearly not enough treble. The reason was a
piezoceramic filter (5.5 MHz), 1101.Philips-29PT5507/58 Ch. LO1.1E
UOC: TDA9565H/N1/S/080 TV is included in the PP ~ 2 seconds, time to receive
the narrowed horizontal screen with dual lines, then goes back to TV in the DR.
After 5-7 such attempts may make normal TV, except that the right edge of the
screen has wavy edges. Confidently and quickly find the cause of the defect in
the customer helped ESR-meter-capacity electrolyte lost in 2455 (47mkfh35v).PHILIPS 2844
Problem: with warming, "green" and turns itself off. Framed
TDA6107-old result. When tapping on the neck of the CRT color illumination.
Turn off the heat of full-time (pre-heating measured U), 2 turns pulls well
insulated wire on a core strochnika and connect through a resistor to the staff
findings heater tube. Turn everything is OK. U filament alterations to 6.2 V
after 6.3 PHILIPS 28PW5324/01
Problem: when you turn beeping power supply. PSU defective. The module line
scan crashed 6N60., Not short-circuit and 35 ohms. After replacing the TV
switched on but not fully deploys the line heats 6N60. Vypayal monoplaty module
with line scan, the module swollen capacitor 390 n near conclusion. After
replacing the capacitor 390 n everything is OK.PHILIPS 21PT1865/58 ch. L9.2E AA
Tuner UV 1316/A1-3, after the storm, "snow cover images", set the
tuner: on TV "Birch 54TTS-610D" chassis
MSH-720 (5 years) fits perfectly, with no service adjustments.Philips 29PT8841S/60 chassis L0.4A-AD
Came in for repair after a sloppy repair Philips 29PT8841S/60 chassis L0.4A-AD
(change processor TDA12010H1/N1B51 [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]
TV was launched, was attended by all the voltage, the LED does not light duty
room and start the line did not occur. Pushed the idea of
reference [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذا الرابط]
- Check the SDA and SCL bus
from terminal to terminal 1244 1203. Exchange 7202 reached up to the
transistor, and transistor after a complete zero, well, to / from 7203 no signs
of life. Were replaced by two transistors (7203.7202) to 2N7002LT1 and
television come to life.PHILIPS 14PT138A/58R
Periodically buggy controller - buttons on the panel served nesvoi functions
(such as when you VOLUM + menu appear and perelistovalos itself ... despite the
fact that the panel of four buttons - the volume and switching between
programs!), Rhythmically blinking LED that appeared and disappeared different
channels .. .
It turned out that on the 16th leg of the controller (one of the tires buttons)
instead of five pulses were present with a lower frequency. And they came, they
bus in from 9 strochnika - fell off the filter capacitor (S2443). Deffektik
Wonderful ...PHILIPS 14PT1345/58, chassis L9.2E AA
Problem: after 20-30 seconds. after the start goes to the duty room, the screen
only "snow". Detailed testing showed that dried up e-thou BS in
primary and secondary circuits. And as a result of overstating the supply
voltage. As well as the poor quality of rations in BP, CP, CD, etc. It also
emerged that came with the system memory chip 24C08. After elimination of these
defects TV works fine.PHILIPS 21GR9750/02B chassis G90B.
Not included. Fuse intact. Nutrition + B short-circuits NOTES whole. The breakdown
of the collector coil FBT on weight (36 923 79 / 1). Set HR7503.Philips 29PT8640/12 ch. ES1E
C duty room not included. operational. Blinking error 7. Probit zener 27v 6458
on a vertical refresh.Philips 21PT5107S L01.1A
Came down with power switch in the PSU P10NK80FP, native did not find, put
SSS6N60B, not too hot to be working fine for a month already.Philips 14pv135 \ 58 TV,
video gear Z12VA.
Defect: the TV is turned on 2-3 sec. and immediately shuts down. The motor VCR
all the time scrolls. To lock the VCR to work at the program switch SW212
(on-board symbol: pow-amp-block N150) to close the points G and A1, ie G-spot
to land on the ground through 22kom (R261), as well as disable the floppy
ribbon cable that goes to the engine from the board, so as not humming ...