Sharp 51GT-25 (serv.man5) Service Manual ▷ View online
29
51GT-25H
TROUBLESHOOTING TABLES.
NO VERTICAL SCAN
Broken
Normal
Check Q507 and
R504
Normal
Broken
Check Q5091
Normal
±10 V
abnormal
Check Q500,
D709, C712,
D710 and
C713
D709, C712,
D710 and
C713
Check power
supply voltage
supply voltage
Check Q503,
Q505, Q506,
Q510 and IC501
Q505, Q506,
Q510 and IC501
Is R512
Broken?
Broken?
Are R504 or
R608
Broken?
R608
Broken?
NO PICTURE
Normal
Open
Change
R609
0V
Check C876, T601
and connection G2
and connection G2
Normal
Check CRT
Check
R609
R609
Check
C867
voltage
C867
voltage
30
51GT-25H
MARK *:
SPARE PARTS DELIVERY SECTION
REF No.
PARTS
DESCRIPTION
* CODE
PICTURE TUBE
VB51EFS83912E
CRT 21" THA51EFS83X391 THOMSON
S CD
VB51EAL15511N
CRT 21" PHILIPS
S **
RCILG0408BMZZ
DEGUSSING COIL TODAIMUSEN
S AP
PRINTED WIRING BOARDS (Not replacement item)
DUNTK7320CJV3
CHASSIS ADJUST 51GT25H
S --
DUNTK7321CJV3
CRT SOCKET ADJUST 51GT25H
S --
DSETU7320CJV3
ADJUST WITH CHASSIS 51GT25H
S BX
PWB-A
MOTHER UNIT
TUNER
TU 0201
RTUNH0125BMZZ
TUNER UV134/IEC UHF BALANCED
S AY
INTEGRATED CIRCUITS
IC 0201
RH-IX1630BMN2
IC TDA8840-2Y PHILIPS
S AZ
IC 0501
VSIMT1A/A//-1
TRT IMT1A-T110 ROHM
S AB
IC 0701
VHIPC123ZY1-1
PHOTO COUPLER PC123ZY1 SHARP
S AD
IC 1001
RH-IX1818BMZZ
IC SDA5552A002 TV TEXT PRO 1PAGE 64KB
S --
IC 1002
RH-IX1812BMZZ
EEPROM M24C04-WMN6T ST MICROELECTRONICSS AF
IC 1003
RH-IX0037CEZZ
IC UPC574J 33V NEC
S AD
TRANSISTORS
Q 0201
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
Q 0202
VS2SA1037KQ-1
TRT BC807 SMD
S AA
Q 0209
RH-TX0218BMZZ
TRT BC337-40 PHILIPS
S AA
Q 0303
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
Q 0304
VS2SA1037KQ-1
TRT BC807 SMD
S AA
Q 0305
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
Q 0354
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
Q 0355
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
Q 0401
RH-TX0217BMZZ
TRT BC337 PHILIPS
S AB
Q 0500
RH-TX0112BMZZ
TRT BC636
S AB
Q 0501
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
Q 0502
RH-TX0140BMZZ
TRT BD825-16
S AC
Q 0503
RH-TX0153BMZZ
TRT BC856BLT1 SMD MOTOROLA
S AB
Q 0504
RH-TX0204BMZZ
TRT BD830
S AC
Q 0505
RH-TX0154BMZZ
TRT BC546 PHILIPS
S AA
Q 0506
RH-TX0152BMZZ
TRT BC846BLT1 SMD MOTOROLA
S AA
Q 0510
RH-TX0217BMZZ
TRT BC337 PHILIPS
S AB
Q 0602
RH-TX0118BMZZ
TRT BC635-16 BETA > 100
S AC
Q 0603
RH-TX0142BMZZ
TRT TBC 547-B TOSHIBA
S AB
Q 0604
RH-TX0112BMZZ
TRT BC636
S AB
Q 0702
RH-TX0217BMZZ
TRT BC337 PHILIPS
S AB
Q 0703
RH-TX0217BMZZ
TRT BC337 PHILIPS
S AB
Q 0704
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
Q 0705
RH-TX0142BMZZ
TRT TBC 547-B TOSHIBA
S AB
Q 0706
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
!
!
!
!
PART LIST
REPLACEMENT PARTS
Replacement parts which have special safety characteristics are identi-
fied in this manual. Electrical components having such features are iden-
tified by
fied in this manual. Electrical components having such features are iden-
tified by
!
in the Replacement Part List.
The use of a substitute replacement part which does not have the same
safety characteristics as the factory recommended is not permitted.
Replacement parts not shown in this service manual may create shock
fire, or other hazards.
safety characteristics as the factory recommended is not permitted.
Replacement parts not shown in this service manual may create shock
fire, or other hazards.
HOW TO ORDER REPLACEMENT PARTS
To have your order completed promplty and corretly please supply the
following information.
following information.
1. MODEL NUMBER
3. PART NO.
5. CODE
3. PART NO.
5. CODE
2. REF. NO.
4. DESCRIPTION
6. QUANTITY
4. DESCRIPTION
6. QUANTITY
TROUBLESHOOTING TABLES.
NO SOUND
Approx. 20V
0 V
Check R313,
Q3011 and
Q3021
Q3021
Check L303, IC201
and speaker.
and speaker.
Check sound setting by R/C.
Signal should be received.
Check
colector of
Q3011 volta
colector of
Q3011 volta
WRONG OPERATION
Show the wrong
function
function
Check NVM data
Address : 0B
Data : F8
Data : F8
30
51GT-25H
MARK *:
SPARE PARTS DELIVERY SECTION
REF No.
PARTS
DESCRIPTION
* CODE
PICTURE TUBE
VB51EFS83912E
CRT 21" THA51EFS83X391 THOMSON
S CD
VB51EAL15511N
CRT 21" PHILIPS
S **
RCILG0408BMZZ
DEGUSSING COIL TODAIMUSEN
S AP
PRINTED WIRING BOARDS (Not replacement item)
DUNTK7320CJV3
CHASSIS ADJUST 51GT25H
S --
DUNTK7321CJV3
CRT SOCKET ADJUST 51GT25H
S --
DSETU7320CJV3
ADJUST WITH CHASSIS 51GT25H
S BX
PWB-A
MOTHER UNIT
TUNER
TU 0201
RTUNH0125BMZZ
TUNER UV134/IEC UHF BALANCED
S AY
INTEGRATED CIRCUITS
IC 0201
RH-IX1630BMN2
IC TDA8840-2Y PHILIPS
S AZ
IC 0501
VSIMT1A/A//-1
TRT IMT1A-T110 ROHM
S AB
IC 0701
VHIPC123ZY1-1
PHOTO COUPLER PC123ZY1 SHARP
S AD
IC 1001
RH-IX1818BMZZ
IC SDA5552A002 TV TEXT PRO 1PAGE 64KB
S --
IC 1002
RH-IX1812BMZZ
EEPROM M24C04-WMN6T ST MICROELECTRONICSS AF
IC 1003
RH-IX0037CEZZ
IC UPC574J 33V NEC
S AD
TRANSISTORS
Q 0201
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
Q 0202
VS2SA1037KQ-1
TRT BC807 SMD
S AA
Q 0209
RH-TX0218BMZZ
TRT BC337-40 PHILIPS
S AA
Q 0303
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
Q 0304
VS2SA1037KQ-1
TRT BC807 SMD
S AA
Q 0305
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
Q 0354
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
Q 0355
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
Q 0401
RH-TX0217BMZZ
TRT BC337 PHILIPS
S AB
Q 0500
RH-TX0112BMZZ
TRT BC636
S AB
Q 0501
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
Q 0502
RH-TX0140BMZZ
TRT BD825-16
S AC
Q 0503
RH-TX0153BMZZ
TRT BC856BLT1 SMD MOTOROLA
S AB
Q 0504
RH-TX0204BMZZ
TRT BD830
S AC
Q 0505
RH-TX0154BMZZ
TRT BC546 PHILIPS
S AA
Q 0506
RH-TX0152BMZZ
TRT BC846BLT1 SMD MOTOROLA
S AA
Q 0510
RH-TX0217BMZZ
TRT BC337 PHILIPS
S AB
Q 0602
RH-TX0118BMZZ
TRT BC635-16 BETA > 100
S AC
Q 0603
RH-TX0142BMZZ
TRT TBC 547-B TOSHIBA
S AB
Q 0604
RH-TX0112BMZZ
TRT BC636
S AB
Q 0702
RH-TX0217BMZZ
TRT BC337 PHILIPS
S AB
Q 0703
RH-TX0217BMZZ
TRT BC337 PHILIPS
S AB
Q 0704
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
Q 0705
RH-TX0142BMZZ
TRT TBC 547-B TOSHIBA
S AB
Q 0706
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
!
!
!
!
PART LIST
REPLACEMENT PARTS
Replacement parts which have special safety characteristics are identi-
fied in this manual. Electrical components having such features are iden-
tified by
fied in this manual. Electrical components having such features are iden-
tified by
!
in the Replacement Part List.
The use of a substitute replacement part which does not have the same
safety characteristics as the factory recommended is not permitted.
Replacement parts not shown in this service manual may create shock
fire, or other hazards.
safety characteristics as the factory recommended is not permitted.
Replacement parts not shown in this service manual may create shock
fire, or other hazards.
HOW TO ORDER REPLACEMENT PARTS
To have your order completed promplty and corretly please supply the
following information.
following information.
1. MODEL NUMBER
3. PART NO.
5. CODE
3. PART NO.
5. CODE
2. REF. NO.
4. DESCRIPTION
6. QUANTITY
4. DESCRIPTION
6. QUANTITY
TROUBLESHOOTING TABLES.
NO SOUND
Approx. 20V
0 V
Check R313,
Q3011 and
Q3021
Q3021
Check L303, IC201
and speaker.
and speaker.
Check sound setting by R/C.
Signal should be received.
Check
colector of
Q3011 volta
colector of
Q3011 volta
WRONG OPERATION
Show the wrong
function
function
Check NVM data
Address : 0B
Data : F8
Data : F8
30
51GT-25H
MARK *:
SPARE PARTS DELIVERY SECTION
REF No.
PARTS
DESCRIPTION
* CODE
PICTURE TUBE
VB51EFS83912E
CRT 21" THA51EFS83X391 THOMSON
S CD
VB51EAL15511N
CRT 21" PHILIPS
S **
RCILG0408BMZZ
DEGUSSING COIL TODAIMUSEN
S AP
PRINTED WIRING BOARDS (Not replacement item)
DUNTK7320CJV3
CHASSIS ADJUST 51GT25H
S --
DUNTK7321CJV3
CRT SOCKET ADJUST 51GT25H
S --
DSETU7320CJV3
ADJUST WITH CHASSIS 51GT25H
S BX
PWB-A
MOTHER UNIT
TUNER
TU 0201
RTUNH0125BMZZ
TUNER UV134/IEC UHF BALANCED
S AY
INTEGRATED CIRCUITS
IC 0201
RH-IX1630BMN2
IC TDA8840-2Y PHILIPS
S AZ
IC 0501
VSIMT1A/A//-1
TRT IMT1A-T110 ROHM
S AB
IC 0701
VHIPC123ZY1-1
PHOTO COUPLER PC123ZY1 SHARP
S AD
IC 1001
RH-IX1818BMZZ
IC SDA5552A002 TV TEXT PRO 1PAGE 64KB
S --
IC 1002
RH-IX1812BMZZ
EEPROM M24C04-WMN6T ST MICROELECTRONICSS AF
IC 1003
RH-IX0037CEZZ
IC UPC574J 33V NEC
S AD
TRANSISTORS
Q 0201
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
Q 0202
VS2SA1037KQ-1
TRT BC807 SMD
S AA
Q 0209
RH-TX0218BMZZ
TRT BC337-40 PHILIPS
S AA
Q 0303
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
Q 0304
VS2SA1037KQ-1
TRT BC807 SMD
S AA
Q 0305
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
Q 0354
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
Q 0355
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
Q 0401
RH-TX0217BMZZ
TRT BC337 PHILIPS
S AB
Q 0500
RH-TX0112BMZZ
TRT BC636
S AB
Q 0501
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
Q 0502
RH-TX0140BMZZ
TRT BD825-16
S AC
Q 0503
RH-TX0153BMZZ
TRT BC856BLT1 SMD MOTOROLA
S AB
Q 0504
RH-TX0204BMZZ
TRT BD830
S AC
Q 0505
RH-TX0154BMZZ
TRT BC546 PHILIPS
S AA
Q 0506
RH-TX0152BMZZ
TRT BC846BLT1 SMD MOTOROLA
S AA
Q 0510
RH-TX0217BMZZ
TRT BC337 PHILIPS
S AB
Q 0602
RH-TX0118BMZZ
TRT BC635-16 BETA > 100
S AC
Q 0603
RH-TX0142BMZZ
TRT TBC 547-B TOSHIBA
S AB
Q 0604
RH-TX0112BMZZ
TRT BC636
S AB
Q 0702
RH-TX0217BMZZ
TRT BC337 PHILIPS
S AB
Q 0703
RH-TX0217BMZZ
TRT BC337 PHILIPS
S AB
Q 0704
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
Q 0705
RH-TX0142BMZZ
TRT TBC 547-B TOSHIBA
S AB
Q 0706
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
!
!
!
!
PART LIST
REPLACEMENT PARTS
Replacement parts which have special safety characteristics are identi-
fied in this manual. Electrical components having such features are iden-
tified by
fied in this manual. Electrical components having such features are iden-
tified by
!
in the Replacement Part List.
The use of a substitute replacement part which does not have the same
safety characteristics as the factory recommended is not permitted.
Replacement parts not shown in this service manual may create shock
fire, or other hazards.
safety characteristics as the factory recommended is not permitted.
Replacement parts not shown in this service manual may create shock
fire, or other hazards.
HOW TO ORDER REPLACEMENT PARTS
To have your order completed promplty and corretly please supply the
following information.
following information.
1. MODEL NUMBER
3. PART NO.
5. CODE
3. PART NO.
5. CODE
2. REF. NO.
4. DESCRIPTION
6. QUANTITY
4. DESCRIPTION
6. QUANTITY
TROUBLESHOOTING TABLES.
NO SOUND
Approx. 20V
0 V
Check R313,
Q3011 and
Q3021
Q3021
Check L303, IC201
and speaker.
and speaker.
Check sound setting by R/C.
Signal should be received.
Check
colector of
Q3011 volta
colector of
Q3011 volta
WRONG OPERATION
Show the wrong
function
function
Check NVM data
Address : 0B
Data : F8
Data : F8