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Friday, December 20, 2013

HOW TO REPAIR CFL BULB



CFL BULB  does not glow

 

CFL BULB REPAIRING TUTORIAL
 

Check TP1 AND TP2 ac 230 v comes to bridge rectifier or not.
When comes  230 v ac  then check TP3 AND TP4 300 v dc in filter capacitor C4 3.3 uF /400v .
If not coming then check bridge rectifier  and C4 .
When  comes 300v dc  , then check  TP 5  here around 125-150v dc is coming.
If not coming then check  Q1,Q2-  MJE 13001, R1,R3 – 1 Ohems, R2,R5 – 20 Ohems and its related component.
After 125v DC coming in TP5 if CFL BULB not glow then check CFL TUBE two side coil, and chopper tranfermer.
After this tube already glow , if does not glow then see this tube starting point only glow in low light but not complete not glow then, check  C3 2n2/630 v is shorty.
Replace this C3 and you done.
.....................................................ENJOY.........................................
If any question about this you can comment me, and i will reply you.....................


ANOTHER CFL BULB CIRCUIT DIAGRAM WITH DETAILS

BIGLUZ 20 WATT       BROWNIEX 20 WATT       EUROLITE 23 WATT      IKEA 7 WATT 

IMMEDIATELY 25 WATT      ISOTRONIC 25 WATT     LUXAR 11 WATT    LUXTEK 8 WATT  

 MAYWAY 11 WATT       MAXILUX 15 WATT      OSRAM 11 WATT     OSRAM 21 WATT   

OSRAM DULUX STAR 11 WATT      PHILIPS 11 WATT      PHILIPS GENIE 11 WATT  

 PHILIPS 14 WATT     POLARIS 11 WATT





Wednesday, December 18, 2013

HOW TO DISTRIBUTE CABLE TV CONNECTION TO TV



WHEN WE GET FINAL SIGNAL AFTER CONTROL ROOM 200 MTR AHED CONNECT A ANATHER AMPLIFIER FOR RESON, GET BETTER SIGNAL FROM 200MTR WIRE LOSSES.
OUT PUT FROM FIRST AMPLIFIER GAIN =90 DB , SLOPE = 95 DB
AFTER 200 MTR THIS CABLE LOSS ABOUT GAIN 20= DB, SLOPE = 25 DB
SO RESULT WE GET NOW GAIN- 90 DB-20 DB = 70 DB
                                                SLOPE- 95 DB- 25 DB =70 DB
NOW HOW TO INCRESE THIS SIGNAL GAIN
THIS INPUT GIVE TO NEW ONE AMPLIFIER
AND ADJUST THIS GAIN SLOPE CONTROL UNTIL OUT PUT
                                                                GAIN – 90 DB, SLOPE – 95 DB
AFTER THIS, THIS PROCESS WILL CONTINUE FOR EVER
MEANS EVERY 200 MTR DISTANCE CONNECT A AMPLIFIER
AND GAIN SLOPE ADJUST LIKE UPPER METHOD

HOW TO CREATE A CABLE TV NETWORK

CREATE CABLE TV NETWORK


First used items for cable tv network
1.       C BAND SIGNAL RECEVING ANTENNA
2.       KU BAND SIGNAL RECEVING ANTENNA
3.       C BAND SIGNAL DECODER RECEIVER STB
4.       KU BAND SIGNAL DECODER RECEIVER STB
5.       ADJECENT CHANNEL MODULATOR (ACM) / SAW FILTER
6.       CHANNEL COMBINER PIN NO(REQUIRED IN YOUR CHOICE)
7.       HYBRID AMPLIFIER 750 Mhz
8.       POWER INJECTOR 60V AC 06/10 AMP
9.       RG6 CO-AXIAL WIRE
PICTURE BELOW

Saturday, December 14, 2013

AIWA MODEL NO –TV 201 FAULT-NO EHT POWER SUPPLY OUTPUT VOLTAGE DROPS


AIWA MODEL NO –TV 201 FAULT-NO EHT POWER SUPPLY OK


AIWA MODEL NO –TV 201 FAULT-IC 801 STR58041A OVER HEATS BLOWS OFF


AIWA MODEL NO –TV 201 FAULT-HORIZONTAL OUTPUT TRANSISTOR Q602 2SD1555 OVERHEATS OR BLOWS OFF


AIWA MODEL NO –TV 201 FAULT-CONTRAST UP-DN IS NOT FUNCTIONING


AIWA MODEL NO –TV 201 FAULT ac fuse f801 blows off


AIWA MODEL NO –TV 201 FAULT SET DEAD NO OUTPUT FROM POWER SUPPLY



AIWA MODEL NO –TV 201 FAULT SET DEAD NO OUTPUT FROM POWER SUPPLY
MAINS WIR, F801(3.15A), POWER SWITCH SW001, LINE FILTER L802, R801- (2.7 OHEMS/5W) , D801-D804 –(EM2B), C810 (220MFD/400V)

AIWA MODEL NO –TV 201 FAULT IC 801 (STR58041A) Over heats /blows off



AIWA MODEL NO –TV 201 FAULT IC 801 (STR58041A) Over heats /blows off
Ic 801 str (STR58041A) and its mica, c810 220mfd /400v , D801-D804 –(EM2B), C811-C809 1000PF, Q801- 2SC2061 AND RELATED COMPONETS, C815-C813, 100 MFD, D806(TVR5G), C812(22MFD), Q802(2SC2061) ABD RELATED COMPONETS, D809(6V2 ZENER), IC 802 (PV 111YS) AND RELATED COMPONENTS, T801, CHECK SECONDARY SIDE OF T 801 CHECK HORIZ, OUTPUT SECTION.

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