Sams Photofact

25
Nov/10
0

My Sharp TV Model 25F-M40 is dead.?

This tv is about 10 years old, which I would ilke to repair.
I replaced several parts, horizontal output driver and transistor, SCR for switching power supply, some diodes, several capacitors in the power supply circuit.
Originally fuse was burning out. Now it is continuously clicking which seems to be coming from flyback transformer.
When I check the voltage at the output of scr it is fluctuating between 85vdc and 150vdc.
A friend of mine tells me flyback transformer needs replacement.
I checked all the resistance readings on its windings with a special ohms meter, they all seems to be as indicated in the service manual.
Obviously there are no oscillations and therefore no low volatge dc outputs. No high voltage output either.
I believe flyback transformer needs air gap adjustment by using two plastic adjustment screws, so I can get oscillations, and then voltage outputs.
I have the sam photofact service manual.
I would appreciate any thoughts.
Thanks in advance

If SCR damaged usually the R fuse near this SCR is also damaged, and please don't replace it with ordinary small R, I think the problem is still around the Primary area. But I'm not sure.

HOWARD W SAMS RADIO PHOTOFACT SERVICER 1951 Folder Set 1 152 Mixed Media Art
HOWARD W SAMS RADIO PHOTOFACT SERVICER 1951 Folder Set 1 152 Mixed Media Art
$5.99
Time Remaining: 1h 29m

Sams Photofact Webcor Reel to Reel Models 2810281928202820 1C291029192923
Sams Photofact Webcor Reel to Reel Models 2810281928202820 1C291029192923
$4.49
Time Remaining: 2h 33m
Buy It Now for only: $4.49

Sams Photofact Zenith Console SFF2501 SeriesSFF2601 Series FT11Ch4F207F20
Sams Photofact Zenith Console SFF2501 SeriesSFF2601 Series FT11Ch4F207F20
$4.49
Time Remaining: 2h 33m
Buy It Now for only: $4.49

Sams Photofact Zenith Console Chassis SF297F20
Sams Photofact Zenith Console Chassis SF297F20
$4.49
Time Remaining: 2h 33m
Buy It Now for only: $4.49

Sams Photofact Truetone Record Player Model 4DC6133A
Sams Photofact Truetone Record Player Model 4DC6133A
$4.49
Time Remaining: 2h 33m
Buy It Now for only: $4.49

Sams Photofact Telectro Reel to Reel Model 1975
Sams Photofact Telectro Reel to Reel Model 1975
$4.49
Time Remaining: 2h 33m
Buy It Now for only: $4.49

Sams Photofact Zenith Record Player Model DPS 50L
Sams Photofact Zenith Record Player Model DPS 50L
$4.49
Time Remaining: 2h 33m
Buy It Now for only: $4.49

Sams Photofact Zenith Record Changer Models S14012S14014
Sams Photofact Zenith Record Changer Models S14012S14014
$4.49
Time Remaining: 2h 33m
Buy It Now for only: $4.49

Sams Photofact Zenith Record Player Model FPS 50L
Sams Photofact Zenith Record Player Model FPS 50L
$4.49
Time Remaining: 2h 33m
Buy It Now for only: $4.49

Sams Photofact Zenith Record Player Model FP S 80C
Sams Photofact Zenith Record Player Model FP S 80C
$4.49
Time Remaining: 2h 33m
Buy It Now for only: $4.49

Sams Photofact Webcor Reel to Reel Model EP 2008 1EP 4008 1
Sams Photofact Webcor Reel to Reel Model EP 2008 1EP 4008 1
$4.49
Time Remaining: 2h 33m
Buy It Now for only: $4.49

Sams Photofact Zenith Record Player Model SFD 660C
Sams Photofact Zenith Record Player Model SFD 660C
$4.49
Time Remaining: 2h 33m
Buy It Now for only: $4.49

Sams Photofact Webcor Reel to Reel Models EP 2007 1EP 4007 1
Sams Photofact Webcor Reel to Reel Models EP 2007 1EP 4007 1
$4.49
Time Remaining: 2h 33m
Buy It Now for only: $4.49

Sams Photofact Telectro Reel to Reel Model 300
Sams Photofact Telectro Reel to Reel Model 300
$4.49
Time Remaining: 2h 33m
Buy It Now for only: $4.49

Sams Photofact Webster Record Changer Model 346
Sams Photofact Webster Record Changer Model 346
$4.49
Time Remaining: 2h 33m
Buy It Now for only: $4.49

Sams Photofact Symphonic Console Model 17231744
Sams Photofact Symphonic Console Model 17231744
$4.49
Time Remaining: 2h 36m
Buy It Now for only: $4.49

Sams Photofact Sound IncInter Sound
Sams Photofact Sound IncInter Sound
$4.49
Time Remaining: 2h 36m
Buy It Now for only: $4.49

Sams Photofact Steelman Console Models 603703
Sams Photofact Steelman Console Models 603703
$4.49
Time Remaining: 2h 36m
Buy It Now for only: $4.49

Sams Photofact Stenotape Reel to Reel Model TR 711
Sams Photofact Stenotape Reel to Reel Model TR 711
$4.49
Time Remaining: 2h 36m
Buy It Now for only: $4.49

Sams Photofact Regency CB Transmitter ReCeiver CB 27CBM 27 6  CBM 27 12
Sams Photofact Regency CB Transmitter ReCeiver CB 27CBM 27 6 CBM 27 12
$4.49
Time Remaining: 2h 36m
Buy It Now for only: $4.49

Sams Photofact Recordio Reel to Reel Models 804806SA 807
Sams Photofact Recordio Reel to Reel Models 804806SA 807
$4.49
Time Remaining: 2h 36m
Buy It Now for only: $4.49

Sams Photofact Symphonic Record Player Model 1718
Sams Photofact Symphonic Record Player Model 1718
$4.49
Time Remaining: 2h 36m
Buy It Now for only: $4.49

Sams Photofact Voice of Music V M Console Models 803805
Sams Photofact Voice of Music V M Console Models 803805
$4.49
Time Remaining: 2h 36m
Buy It Now for only: $4.49

Sams Photofact Steelman Console Model 705
Sams Photofact Steelman Console Model 705
$4.49
Time Remaining: 2h 36m
Buy It Now for only: $4.49

Sams Photofact Recordio Reel to Reel Model 802
Sams Photofact Recordio Reel to Reel Model 802
$4.49
Time Remaining: 2h 36m
Buy It Now for only: $4.49

Sams Photofact Silvertone Console Models 105310551056Ch52853970528 53980
Sams Photofact Silvertone Console Models 105310551056Ch52853970528 53980
$4.49
Time Remaining: 2h 36m
Buy It Now for only: $4.49

Sams Photofact Silvertone Console Models 10651067CH5285405052859840
Sams Photofact Silvertone Console Models 10651067CH5285405052859840
$4.49
Time Remaining: 2h 36m
Buy It Now for only: $4.49

Sams Photofact Silvertone Chassis 5285406007007152859560850851860
Sams Photofact Silvertone Chassis 5285406007007152859560850851860
$4.49
Time Remaining: 2h 36m
Buy It Now for only: $4.49

Sams Photofact Symphonic Console Model 1740
Sams Photofact Symphonic Console Model 1740
$4.49
Time Remaining: 2h 36m
Buy It Now for only: $4.49

Sams Photofact Symphonic Console Models 172517261741174217471749
Sams Photofact Symphonic Console Models 172517261741174217471749
$4.49
Time Remaining: 2h 36m
Buy It Now for only: $4.49

Sams Photofact of the Month Club Electronic Schematic Manuals Months for 1973
Sams Photofact of the Month Club Electronic Schematic Manuals Months for 1973
$20.00
Time Remaining: 3h 40m
Buy It Now for only: $20.00

Sams Photofact of the Month Club Set Electronic Schematics Months for 1976
Sams Photofact of the Month Club Set Electronic Schematics Months for 1976
$25.00
Time Remaining: 3h 41m
Buy It Now for only: $25.00

Sams Photofact of the Month Club Set Electronic Schematics Complete for 1974
Sams Photofact of the Month Club Set Electronic Schematics Complete for 1974
$40.00
Time Remaining: 3h 41m
Buy It Now for only: $40.00

Sams Photofact of the Month Club Set Electronic Schematics Complete for 1975
Sams Photofact of the Month Club Set Electronic Schematics Complete for 1975
$40.00
Time Remaining: 3h 41m
Buy It Now for only: $40.00

SAMS PHOTOFACT 139 14 JULY 1951SPARTON MODELS 5085 5086
SAMS PHOTOFACT 139 14 JULY 1951SPARTON MODELS 5085 5086
$5.00
Time Remaining: 3h 46m
Buy It Now for only: $5.00

SAMS PHOTOFACT 139 4  JULY 1951 AIRLINE MODEL O5WG 2748F
SAMS PHOTOFACT 139 4 JULY 1951 AIRLINE MODEL O5WG 2748F
$4.00
Time Remaining: 3h 46m
Buy It Now for only: $4.00

SAMS PHOTOFACT 139 7 JULY 1951KAY HALBERT 033 034 036 037 231 232 233
SAMS PHOTOFACT 139 7 JULY 1951KAY HALBERT 033 034 036 037 231 232 233
$5.00
Time Remaining: 3h 46m
Buy It Now for only: $5.00

SAMS PHOTOFACT 139 2  JULY 1951 ADMIRAL CHASSIS 5E2
SAMS PHOTOFACT 139 2 JULY 1951 ADMIRAL CHASSIS 5E2
$4.00
Time Remaining: 3h 46m
Buy It Now for only: $4.00

SAMS PHOTOFACT 139 6  JULY 1951 KAISER FRAZER MODEL 10020S
SAMS PHOTOFACT 139 6 JULY 1951 KAISER FRAZER MODEL 10020S
$5.00
Time Remaining: 3h 46m
Buy It Now for only: $5.00

SAMS PHOTOFACT 151 11 NOV 1951 TRUETONE MODEL 2D1194A
SAMS PHOTOFACT 151 11 NOV 1951 TRUETONE MODEL 2D1194A
$4.50
Time Remaining: 3h 46m
Buy It Now for only: $4.50

SAMS PHOTOFACT 139 9 JULY 1951 MOTOROLA MODEL NH1C
SAMS PHOTOFACT 139 9 JULY 1951 MOTOROLA MODEL NH1C
$4.00
Time Remaining: 3h 46m
Buy It Now for only: $4.00

SAMS PHOTOFACT 139 8 JULY 1951 MOPAR MODELS 812 813 815 816 817
SAMS PHOTOFACT 139 8 JULY 1951 MOPAR MODELS 812 813 815 816 817
$5.00
Time Remaining: 3h 46m
Buy It Now for only: $5.00

SAMS PHOTOFACT 139 3  JULY 1951 AIRCASTLE MODEL 200
SAMS PHOTOFACT 139 3 JULY 1951 AIRCASTLE MODEL 200
$3.00
Time Remaining: 3h 46m
Buy It Now for only: $3.00

SAMS PHOTOFACT 151 13 ZENITH H2229R H2230R R H2241R H2242E R H2252R H2253E
SAMS PHOTOFACT 151 13 ZENITH H2229R H2230R R H2241R H2242E R H2252R H2253E
$5.00
Time Remaining: 3h 46m
Buy It Now for only: $5.00

SAMS PHOTOFACT 774 3 SONY 4 203UW
SAMS PHOTOFACT 774 3 SONY 4 203UW
$8.00
Time Remaining: 3h 46m
Buy It Now for only: $8.00

SAMS PHOTOFACT 139 5  JULY 1951 CROSLEY 11 550MU 11 560MU CHASSIS 337
SAMS PHOTOFACT 139 5 JULY 1951 CROSLEY 11 550MU 11 560MU CHASSIS 337
$4.00
Time Remaining: 3h 46m
Buy It Now for only: $4.00

SAMS PHOTOFACT 139 11 JULY 1951 OLYMPIC MODELS 762 783 967 968 970
SAMS PHOTOFACT 139 11 JULY 1951 OLYMPIC MODELS 762 783 967 968 970
$5.00
Time Remaining: 3h 46m
Buy It Now for only: $5.00

SAMS PHOTOFACT 151 12 NOV 1951 ZENITH H503 CH 5H41
SAMS PHOTOFACT 151 12 NOV 1951 ZENITH H503 CH 5H41
$3.00
Time Remaining: 3h 46m
Buy It Now for only: $3.00

SAMS PHOTOFACT 139 15 JULY 1951 V M MODEL 150
SAMS PHOTOFACT 139 15 JULY 1951 V M MODEL 150
$4.00
Time Remaining: 3h 46m
Buy It Now for only: $4.00

SAMS PHOTOFACT 151 2 NOV 1951 AIR KING 17C2 17C5 B 17C7 17K1 17T1 20C1
SAMS PHOTOFACT 151 2 NOV 1951 AIR KING 17C2 17C5 B 17C7 17K1 17T1 20C1
$4.50
Time Remaining: 3h 46m
Buy It Now for only: $4.50

SAMS PHOTOFACT 151 10 NOV 1951 RADIO CRAFTSMEN MODEL RC201
SAMS PHOTOFACT 151 10 NOV 1951 RADIO CRAFTSMEN MODEL RC201
$4.50
Time Remaining: 3h 46m
Buy It Now for only: $4.50

SAMS PHOTOFACT 151 5 NOV 1951 ARVIN 5210 5211 5212 CHASSIS TE315
SAMS PHOTOFACT 151 5 NOV 1951 ARVIN 5210 5211 5212 CHASSIS TE315
$4.50
Time Remaining: 3h 46m
Buy It Now for only: $4.50

Fleetwood Model 800 Television Sams Photofact
Fleetwood Model 800 Television Sams Photofact
$7.99
Time Remaining: 4h 23m
Buy It Now for only: $7.99

SAMS PHOTOFACT FOLDER SET NO825 JULY 1966 Partial
SAMS PHOTOFACT FOLDER SET NO825 JULY 1966 Partial
$3.99 (1 Bid)
Time Remaining: 5h 13m

1983 Sams Photofact Annual Index
1983 Sams Photofact Annual Index
$15.00
Time Remaining: 5h 28m
Buy It Now for only: $15.00

Sams Photofact Modular Hi Fi Components MHF 133
Sams Photofact Modular Hi Fi Components MHF 133
$15.00
Time Remaining: 5h 30m
Buy It Now for only: $15.00

SAMS PHOTOFACT ZENITH CHASIS 19B20 Q U UD TELEVISION RECEIVER
SAMS PHOTOFACT ZENITH CHASIS 19B20 Q U UD TELEVISION RECEIVER
$6.93
Time Remaining: 15h 33m
Buy It Now for only: $6.93

SAMS PHOTOFACT EICO MODEL 740 BATTERY OPERATED PORTABLE CB TRANSMITTER RECEIVER
SAMS PHOTOFACT EICO MODEL 740 BATTERY OPERATED PORTABLE CB TRANSMITTER RECEIVER
$6.93
Time Remaining: 15h 33m
Buy It Now for only: $6.93

SAMS PHOTOFACT KINGHT MODEL KN 100 92SX401 AC OPERATED FM AM TUNER
SAMS PHOTOFACT KINGHT MODEL KN 100 92SX401 AC OPERATED FM AM TUNER
$6.93
Time Remaining: 15h 33m
Buy It Now for only: $6.93

SAMS PHOTOFACT PHILCO MODEL T 6 T 600 PORTABLE TRANSISTORIZED AM RECEIVER
SAMS PHOTOFACT PHILCO MODEL T 6 T 600 PORTABLE TRANSISTORIZED AM RECEIVER
$6.93
Time Remaining: 15h 33m
Buy It Now for only: $6.93

SAMS PHOTOFACT PILOT MODELS PT 1015 PT 1025 4 SPEED AUTOMATIC RECORD PLAYER
SAMS PHOTOFACT PILOT MODELS PT 1015 PT 1025 4 SPEED AUTOMATIC RECORD PLAYER
$6.93
Time Remaining: 15h 33m
Buy It Now for only: $6.93

SAMS PHOTOFACT PRECISE MODELS TUMK TUMW AC OPERATED 8 TUBE FM AM TUNER
SAMS PHOTOFACT PRECISE MODELS TUMK TUMW AC OPERATED 8 TUBE FM AM TUNER
$6.93
Time Remaining: 15h 33m
Buy It Now for only: $6.93

SAMS PHOTOFACT KINGHT MODEL 96RZ940 REEL TO REEL TAPE PLAYER RECORDER
SAMS PHOTOFACT KINGHT MODEL 96RZ940 REEL TO REEL TAPE PLAYER RECORDER
$6.93
Time Remaining: 15h 33m
Buy It Now for only: $6.93

SAMS PHOTOFACT ZENITH MODELS R1800 R1812E R2229E R2230E TELEVISION RECEIVER
SAMS PHOTOFACT ZENITH MODELS R1800 R1812E R2229E R2230E TELEVISION RECEIVER
$6.93
Time Remaining: 15h 33m
Buy It Now for only: $6.93

SAMS PHOTOFACT PHILCO MODELS G4231E L G4234S SL SM G4640L W G4660
SAMS PHOTOFACT PHILCO MODELS G4231E L G4234S SL SM G4640L W G4660
$6.93
Time Remaining: 15h 33m
Buy It Now for only: $6.93

SAMS PHOTOFACT KINGHT MODEL KN 700 92SX406 AC OPERATED AUDIO PREAMPLIFIER
SAMS PHOTOFACT KINGHT MODEL KN 700 92SX406 AC OPERATED AUDIO PREAMPLIFIER
$6.93
Time Remaining: 15h 33m
Buy It Now for only: $6.93

SAMS PHOTOFACT EMERSON MODELS 587 610 616 SUPERHETERODYNE RECEIVER
SAMS PHOTOFACT EMERSON MODELS 587 610 616 SUPERHETERODYNE RECEIVER
$6.93
Time Remaining: 15h 33m
Buy It Now for only: $6.93

SAMS PHOTOFACT KINGHT MODEL KN 610 92SX435 AC OPERATED 5 TUBE AUDIO AMPLIFIER
SAMS PHOTOFACT KINGHT MODEL KN 610 92SX435 AC OPERATED 5 TUBE AUDIO AMPLIFIER
$6.93
Time Remaining: 15h 33m
Buy It Now for only: $6.93

SAMS PHOTOFACT KINGHT MODEL KN 110 92SX403 AC OPERATED FM AM TUNER
SAMS PHOTOFACT KINGHT MODEL KN 110 92SX403 AC OPERATED FM AM TUNER
$6.93
Time Remaining: 15h 33m
Buy It Now for only: $6.93

SAMS PHOTOFACT STROMBERG CARLSON MODEL C 1 SUPERHETERODYNE RECEIVER WITH LOOP
SAMS PHOTOFACT STROMBERG CARLSON MODEL C 1 SUPERHETERODYNE RECEIVER WITH LOOP
$6.93
Time Remaining: 15h 33m
Buy It Now for only: $6.93

SAMS PHOTOFACT EICO MODEL HF 65A EXTERNALLY POWERED THREE TUBE PREAMPLIFIER
SAMS PHOTOFACT EICO MODEL HF 65A EXTERNALLY POWERED THREE TUBE PREAMPLIFIER
$6.93
Time Remaining: 15h 33m
Buy It Now for only: $6.93

SAMS PHOTOFACT SILVERTONE MODEL 8074 CH 52859051 BINAURAL TAPE RECORDER
SAMS PHOTOFACT SILVERTONE MODEL 8074 CH 52859051 BINAURAL TAPE RECORDER
$6.93
Time Remaining: 15h 33m
Buy It Now for only: $6.93

SAMS PHOTOFACT PHILCO MODEL H 973 AC DC OPERATED 6 TUBE AM RECEIVER
SAMS PHOTOFACT PHILCO MODEL H 973 AC DC OPERATED 6 TUBE AM RECEIVER
$6.93
Time Remaining: 15h 33m
Buy It Now for only: $6.93

SAMS PHOTOFACT PHILCO MODEL T 5 T 500 BATTERY OPERATED PORTABLE AM RADIO
SAMS PHOTOFACT PHILCO MODEL T 5 T 500 BATTERY OPERATED PORTABLE AM RADIO
$6.93
Time Remaining: 15h 33m
Buy It Now for only: $6.93

SAMS PHOTOFACT PILOT MODEL FM 530 AC OPERATED FM TUNER
SAMS PHOTOFACT PILOT MODEL FM 530 AC OPERATED FM TUNER
$6.93
Time Remaining: 15h 33m
Buy It Now for only: $6.93

SAMS PHOTOFACT KINGHT MODEL KN 3008 93SX504 3 CHANNEL 8 WATT AUDIO AMPLIFIER
SAMS PHOTOFACT KINGHT MODEL KN 3008 93SX504 3 CHANNEL 8 WATT AUDIO AMPLIFIER
$6.93
Time Remaining: 15h 33m
Buy It Now for only: $6.93


Comments (0) Trackbacks (0)

No comments yet.

Sorry, the comment form is closed at this time.

No trackbacks yet.