Service manual

30
51GT-25S
MARK *:
SPARE PARTS DELIVERY SECTION
REF No. PARTS DESCRIPTION *
SN CODE EX CODE
PICTURE TUBE
VB48ECR1451*N CRT 20" A48ECR143X51RED SAMSUNG S BM CC
RCILG0408BMZZ DEGUSSING COIL TODAIMUSEN S AH AP
PRINTED WIRING BOARDS (Not replacement item)
DUNTK7320CJV1 CHASSIS ADJUST 51GT25S S -- --
DUNTK7321CJV1 CRT SOCKET ADJUST 51GT25S S -- --
DSETU7320BMV1 CHASSIS 51GT25S 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 64K
B
S-- --
IC 1002 RH-IX1812BMZZ EEPROM M24C04-WMN6T ST MICROELEC
T
SAB AF
IC 1003 RH-IX0037CEZZ IC UPC574J 33V NEC S AF AD
TRANSISTORS
Q 0201 RH-TX0235BMZZ TRT 2SC3875SY KEC S -- --
Q 0202 VS2SA1037KQ-1 TRT BC807 SMD S AA AA
Q 0209 RH-TX0218BMZZ TRT BC337-40 PHILIPS S AA AA
Q 0303 RH-TX0235BMZZ TRT 2SC3875SY KEC S -- --
Q 0304 VS2SA1037KQ-1 TRT BC807 SMD S AA AA
Q 0305 RH-TX0235BMZZ TRT 2SC3875SY KEC S -- --
Q 0354 RH-TX0235BMZZ TRT 2SC3875SY KEC S -- --
Q 0355 RH-TX0235BMZZ TRT 2SC3875SY KEC S -- --
Q 0401 RH-TX0217BMZZ TRT BC337 PHILIPS S AA AB
Q 0500 RH-TX0112BMZZ TRT BC636 S AA AB
Q 0501 RH-TX0235BMZZ TRT 2SC3875SY KEC S -- --
Q 0502 RH-TX0140BMZZ TRT BD825-16 S AF AC
Q 0503 RH-TX0153BMZZ TRT BC856BLT1 SMD MOTOROLA S AA AB
Q 0504 RH-TX0204BMZZ TRT BD830 S AF AC
Q 0505 RH-TX0154BMZZ TRT BC546 PHILIPS S AA AA
Q 0506 RH-TX0152BMZZ TRT BC846BLT1 SMD MOTOROLA S AA AA
Q 0510 RH-TX0217BMZZ TRT BC337 PHILIPS S AA AB
Q 0601 RH-TX0132BMZZ TRT BU508DFI S AF AM
Q 0602 RH-TX0118BMZZ TRT BC635-16 BETA > 100 S AC 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-TX0199BMZZ TRT STP4NB80FP ST S AC AG
Q 0702 RH-TX0217BMZZ TRT BC337 PHILIPS S AA AB
Q 0703 RH-TX0217BMZZ TRT BC337 PHILIPS S AA AB
Q 0704 RH-TX0235BMZZ TRT 2SC3875SY KEC S -- --
Q 0705 RH-TX0142BMZZ TRT TBC 547-B TOSHIBA S AA AB
!
!
!
WRONG OPERATION
Show the wrong
function
Check NVM data
Address : 0B
Data : 70
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
TROUBLESHOOTING TABLES.
NO SOUND
Approx. 20V
0 V
Check R313,
Q3011 and
Q3021
Check L303, IC201
and speaker.
Check sound setting by R/C.
Signal should be received.
Check
colector of
Q3011 volta