30
37GT-25S
TROUBLESHOOTING TABLES.
MARK *:
SPARE PARTS
DELIVERY SECTION
REF No.
PARTS
DESCRIPTION
*
SN CODE
EX CODE
PICTURE TUBE
VB34EAC0136*N
CRT 14" A34EAC01X36 PHILIPS
S BH
BZ
RCILG0415BMZZ
DEGUSSING COIL 14"
S AF
AM
PRINTED WIRING BOARDS (Not replacement item)
PWB-A
DUNTK7320CJV5
CHASSIS ADJUST 37GT25S
S --
--
PWB-B
DUNTK7321CJV5
CRT SOCKET ADJUST 37GT25S
S --
--
DSETU7320BMV5
CHASSIS 37GT25S
S --
--
PWB-A
MOTHER UNIT
TUNER
TU 0201
RTUNH0124BMZZ
TUNER UV1315/IEC BALANCED
S AP
BA
INTEGRATED CIRCUITS
IC 0201
RH-IX1630BMN2
IC TDA8840-2Y PHILIPS
S AN
AZ
IC 0501
VSIMT1A/A//-1
TRT IMT1A-T110 ROHM
S AA
AB
IC 0701
VHIPC123ZY1-1
PHOTO COUPLER PC123ZY1 SHARP
S AA
AD
IC 1001
RH-IX1818BMZZ
IC SDA5552A002 TV TEXT PRO 1PAGE 64KB S --
--
IC 1002
RH-IX1812BMZZ
EEPROM M24C04-WMN6T ST MICROE.
S AB
AF
IC 1003
RH-IX0037CEZZ
IC UPC574J 33V NEC
S AF
AD
TRANSISTORS
Q 0201
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
AA
Q 0202
VS2SA1037KQ-1
TRT BC807 SMD
S AA
AA
Q 0209
RH-TX0218BMZZ
TRT BC337-40 PHILIPS
S AA
AA
Q 0301
RH-TX0217BMZZ
TRT BC337 PHILIPS
S AA
AB
Q 0302
RH-TX0216BMZZ
TRT BC327
S AA
AA
Q 0303
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
AA
Q 0304
VS2SA1037KQ-1
TRT BC807 SMD
S AA
AA
Q 0305
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
AA
Q 0354
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
AA
Q 0355
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
AA
Q 0401
RH-TX0217BMZZ
TRT BC337 PHILIPS
S AA
AB
Q 0500
RH-TX0112BMZZ
TRT BC636
S AA
AB
Q 0501
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
AA
Q 0502
RH-TX0140BMZZ
TRT BD825-16
S AF
AC
Q 0503
VS2SA1037KQ-1
TRT BC807 SMD
S AA
AA
Q 0504
RH-TX0131BMZZ
TRT BC638
S AB
AC
Q 0505
RH-TX0142BMZZ
TRT TBC 547-B TOSHIBA
S AA
AB
Q 0506
VS2SC2412KQ-1
TRT 2SC2412 ROHM
S AA
AA
Q 0509
RH-TX0217BMZZ
TRT BC337 PHILIPS
S AA
AB
Q 0510
RH-TX0217BMZZ
TRT BC337 PHILIPS
S AA
AB
Q 0601
RH-TX0132BMZZ
TRT BU508DFI
S AF
AM
Q 0602
RH-TX0108BMZZ
TRT BC635
S AA
AC
Q 0603
RH-TX0142BMZZ
TRT TBC 547-B TOSHIBA
S AA
AB
Q 0604
RH-TX0112BMZZ
TRT BC636
S AA
AB
Q 0701
RH-TX0185BMZZ
TRT SSS3N80A
S AC
AH
Q 0702
RH-TX0217BMZZ
TRT BC337 PHILIPS
S AA
AB
Q 0703
RH-TX0217BMZZ
TRT BC337 PHILIPS
S AA
AB
!
!
!
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
!
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.
HOW TO ORDER REPLACEMENT PARTS
To have your order completed promplty and corretly please supply the
following information.
1. MODEL NUMBER
3. PART NO.
5. CODE
2. REF. NO.
4. DESCRIPTION
6. QUANTITY
NO VERTICAL SCAN
Broken
Normal
Check Q507 and
R504
Normal
Broken
Check Q509
Normal
±10 V
abnormal
Check Q500,
D709, C712,
D710 and
C713
Check power
supply voltage
Check Q503,
Q505, Q506,
Q510 and IC501
Is R512
Broken?
Are R504 or
R608
Broken?
WRONG OPERATION
Show the wrong
function
Check NVM data
Address : 0B
Data :
70
