Samsung TXB2025 Manuel d'instructions

SAMSUNG

E:fact®Technical Service Data

INDEX

Parts List

Coils & Transformers

Miscellaneous

Controls & Resistors

Capacitors & Electrolytics

Cabinet Parts

Semiconductors, 3 pages

Schematics ...................Location

Television .................2A, 2B

Television .................2C, 2D

Audio/Video Switching &

Audio Output ............2E, 2F

Closed Caption ................3D

Power Supply ..............2G, 2H

System Control ............3A, 3B

System Control ................3C

Placement Chart

Models Chassis

TXB2025/CX K52MB

Circuitry not used in some versions.

Circuitry used in some versions.

Ground

Chassis ground

Common tie point

Taken from common tie point

Schematic voltage source tie point.

Cabling: Heavy lines reduce use of multiple lines.

Waveforms and voltages are taken from ground, unless

noted otherwise.

Waveforms taken with triggered scope and keyed rainbow

generator. Waveform voltage is peak to peak. Timebase

is per division. Waveforms shown at 10 divisions.

Supply voltages maintained as seen at input.

Voltages measured with digital meter and a 1000µV RF

signal, with colorbar pattern, applied to antenna terminal.

Controls adjusted for normal operation.

Capacitors are 50 volts or less, 5% or greater unless noted.

Electrolytic capacitors are 50 volts or less,

20% or greater unless noted.

Resistors are 1/2W or less, 5% or greater unless noted.

Value in ( ) used in some versions.

Measurements with switching as shown, unless noted.

Rated voltage shown on zener diodes.

For SAFETY use only equivalent replacement part,

see parts list.

SCHEMATIC NOTES

To purchase a complete paper version

of this service manual, order

PHOTOFACT ®set #3300

To place the order, contact your local

Sams Distributor or call our Customer

Service operation at 1-800-428-7267.

Product #083300

PARTS LIST

COILS & TRANSFORMERS

Item No. Function/Rating Mfr. Part No.

D-Coil Degaussing 32479-029-060

DY Yoke 90° Horiz 2.3mH 32439-310-028

Vert 27.4mH

L101 .8µH -

1.3µH 32429-014-020

L103 68µH 32427-805-850

L104 -32707-200-009

L201 12µH 32427-805-450

L202 10µH 32427-803-130

L203 68µH 32427-805-850

L401 Ferrite Bead34047-019-060

L402 195µ Horizontal 32449-712-010

Linearity

L601 24µH 32427-816-010

L602 -32727-601-012

L603 -32707-200-008

L604 68µH 32427-805-850

L702 390µH 32427-904-720

L703, 04 330µH 32427-904-710

L705 Thru

L707 75µH 32427-904-740

L801, 03 6mH Line Filter 32426-633-160

L804 500µH Line Filter 32429-633-100

L805 5.6µH 32427-805-885

L806, 07 1µH 32429-226-080

L808 Ferrite Bead34047-019-060

L809 5.6µH 32427-805-885

L810 Ferrite Bead34047-019-060

L811 24µH 32429-904-790

L813 250µH 32429-904-800

L901 47µH 32427-805-550

L902 6.1mH 32429-902-510

LH01 24µH 32427-816-010

T401 50mH Horizontal Drive 32849-020-010

T444 (1) Horizontal Output 32859-200-050

T801 SMPS 32899-002-430

(1) Focus and screen controls are part of T444.

PARTS LIST continued

MISCELLANEOUS

Item No. Description Mfr. Part No. Notes

F801 Fuse 34709-087-170 4Amp, 125VAC

JAV01 Jack -Left Audio In, Right

Audio In, Video In,

Right Audio Out, Left

Audio Out

P801 Line Cord 33053-815-411 AC, Polarized

PR01 Receiver 32199-411-050 Remote Control

RL01 Relay 34729-004-010 Degaussing

SP01, 02 Speaker 34209-200-006 8 Ohm, 8W

SW01 Switch 33606-101-012 Power

SW02 Switch 33598-001-006 Channel Up, Channel Down,

Volume Up, Volume Down.

SW03 Switch 33598-001-006 Picture Mode, Mode Up,

Mode Down, Sound Mode.

SW201 Switch 33549-007-010 Service

SW601 Switch 33526-201-001 Speaker Ext/Int

V999 CRT 32019-255-103 A51KRE83X / A54GGB98X

X401 Crystal 34539-300-005 503kHz

X501 Crystal 34537-001-002 3.58MHz

X901 Crystal 34537-001-003 4.0MHz

Z100 Filter 34529-700-023 SAW

Z201 Filter 34527-460-001 4.5MHz

Z601 Filter 34527-460-000 4.5MHz

CRT Socket 33359-063-650 -

PC Board (1) 33004-332-121 Closed Caption

PC Board (1) 33004-115-311 CRT

PC Board (1) 33004-126-471 Main

PC Board (1) 33004-125-981 Power

Terminal Board 33302-107- 610 Antenna

Transmitter 3F14-00034-630 -

Tuner (1) 34519-600-021 UHF/VHF

(1) Contact PTS Electronics Corporation for replacement; order by manufacturer's part number.

CONTROLS & RESISTORS

Item No. Function/Rating Mfr. Part No. NTE Part No.

R219 133K 1% 1/2W 31047-351-333 -

R250 4.7 5% 1/4W Fusible 31059-001-010 -

R301 10 5% 1/2W Fusible 31059-002-100 -

R401 1 5% 1/2W Fusible 31059-002-010 -

R420 3.3 5% 1/2W Fusible 31059-002-020 -

R423 8200 1% 1/4W 31049-307-080 -

R432 120K 1% 1/4W 31049-275-124 -

R444 .47 10% 1W Fusible 31059-428-047 -

R720 1.9 5% 2W Fusible 31059-004-019 -

R802 903/50 PTC Cold 32189-609-360 -

R803 1 5% 15W Wirewound 31039-887-109 -

R805 220 2% 1/4W 31049-276-221 QW122

R807 1200 2% 1/4W 31018-276-122 QW212

R815 100 5% 5W Wirewound 31039-567-101 5W110

R822 .47 10% 1W Fusible 31059-428-047 -

R843 5000 PTC Cold 32189-102-030 -

RT901 10K 5% X 4 Network 31062-205-103 -

RT902 82K 5% X 5 Network 31062-206-823 -

RT903 10K 5% X 4 Network 31062-206-103 -

VR101 10K AGC 31249-128-001 -

VR201 10K AFT 31249-128-001 -

VR202 50K Sub Brightness 31249-128-008 -

VR301 5000 Vertical Height 31249-128-005 -

VR402 10K Horizontal Phase 31249-128-001 -

VR752 200 Red Drive 31249-125-009 -

VR753 200 Blue Drive 31249-125-009 -

VR756 2200 Green Cutoff - -

2000 Green Cutoff 31249-125-008 -

VR757 2200 Red Cutoff - -

2000 Red Cutoff 31249-125-008 -

VR758 2200 Blue Cutoff - -

2000 Blue Cutoff 31249-125-008 -

VR801 2000 125V B+ - -

2300 125V B+ 31249-128-003 -

PARTS LIST continued

CAPACITORS & ELECTROLYTICS

Item No. Rating Mfr. Part No.

C100 47pF 5% 50V NPO 31407-105-260

C101 33pF 5% 50V NPO 31407-057-330

C206 33pF 5% 50V NPO 31407-057-330

C209 10µF 20% 50V NP 31607-974-003

C252, 53 10µF 16V NP 31607-803-120

C261 .47µF 50V NP 31607-402-530

C406 100pF 5% NPO 31407-105-660

C416 .003 5% 1.6KV 31509-391-010

C417 .0039 5% 1.6KV 31519-400-006

C500 39pF 5% 50V NPO 31407-057-390

C502 33pF 5% 50V NPO 31407-057-330

C600, 01 47pF 5% 50V NPO 31407-105-260

C604 7pF ±.25pF 50V NPO 31407-052-709

C606 18pF 5% 50V NPO 31407-057-180

C702 680pF 2KV -

.001 2KV 31418-780-103

C703 680pF 2KV -

10µF 250V 31609-403-490

C804 Thur

C806 .0022 250V 31469-102-010

C809 100pF 5% 50V N220 31407-106-260

C812, 15 .0068 20% 1KV 31419-901-430

C816 680pF 10% 2KV 31417-901-410

C817, 20 270pF 10% 2KV 31417-901-180

C901, 02, 04 22pF 5% 50V NPO 31407-105-180

C908 68pF 5% 50V NPO 31407-105-300

CH01 33pF 5% 50V NPO 31407-057-330

CH2 30pF 5% 50V NPO 31407-105-270

CT901 330pF X 3 Network 31497-009-430

CT902 330pF X 5 Network 31497-009-440

CT903 330pF X 8 Network 31497-009-360

CT904, 05 330pF X 4 Network 31497-009-340

CT906 330pF X 5 Network 31497-009-440

CV01 10pF ±.25pF 50V NPO 31407-105-090

CV03 22pF 5% 50V NPO 31407-105-180

CABINET PARTS

Item Mfr. Part No.

Cabinet Front 36001-690-010

Cabinet Rear 36001-691-010

Door 37642-140-331

Grille, Speaker 37713-232-310

Knob, Power 37623-160-030

Window, Left 37653-126-610

Window, Right 37653-126-520

PARTS LIST continued

D101, 02 1N4148 32167-406-480 NTE519 ECG519 SK3100

D201 1N4003 32167-201-070 NTE116 ECG116 SK3113

D202 1N4148 32167-406-480 NTE519 ECG519 SK3100

D204 EQA02-06D 32167-408-080 NTE5013A ECG5013A SK6A2

D209 (1) 1N4003 32167-201-070 NTE116 ECG116 SK3113

D212 (1) 1N4148 32167-406-480 NTE519 ECG519 SK3100

D301 TVR10G 32167-201-170 NTE552 ECG552 SK9000

D302 1N4003 32167-201-070 NTE116 ECG116 SK3113

D305, 06 1N4148 32167-406-480 NTE519 ECG519 SK3100

D401 TVR10G 32167-201-170 NTE552 ECG552 SK9000

D402 KF104 32167-201-110 - - -

TVR10G 32167-201-170 NTE552 ECG552 SK9000

D403, 04 1N4003 32167-201-070 NTE116 ECG116 SK3113

D405 KF104 32167-201-110 - - -

D406 Thru

D408 1N4148 32167-406-480 NTE519 ECG519 SK3100

D410, 11 1N4148 32167-406-480 NTE519 ECG519 SK3100

D415, 20 1N4148 32167-406-480 NTE519 ECG519 SK3100

D501 Thru

D504 1N4148 32167-406-480 NTE519 ECG519 SK3100

D601 1N4148 32167-406-480 NTE519 ECG519 SK3100

D701 Thru

D703 1N4148 32167-406-480 NTE519 ECG519 SK3100

D800 S05K150 -NTE1V150 ECG1V150 SKMV150H

SI0V-S05K150 32189-106-120 NTE1V150 ECG1V150 SKMV150H

D801 Thru

D804 ERB12-06 32167-208-580 NTE125 ECG125 SK3081

D806, 07 KF104 32167-201-110 - - -

TVR06G -NTE116 ECG116 SK3313

D808 RH-2F -NTE558 ECG558 SK3998

RH10FV1 32167-301-670 - - -

D809 KF104 32167-201-110 - - -

TVR06G -NTE116 ECG116 SK3313

D810 BYW96D 32167-501-030 - - SK5040

BYT77 32167-501-030 - - SK5040

BY299 -NTE506 ECG506 SK3925

D812 1R5GU41 32167-207-120 - - -

D822 1N4003 32167-201-070 NTE116 ECG116 SK3113

D902 Thru

D910 1N4148 32167-406-480 NTE519 ECG519 SK3100

D912 Thru

D915 1N4148 32167-406-480 NTE519 ECG519 SK3100

D918 Thru

D925 1N4148 32167-406-480 NTE519 ECG519 SK3100

D926 (1) 1N4148 32167-406-480 NTE519 ECG519 SK3100

D927 1N4148 32167-406-480 NTE519 ECG519 SK3100

D945, 46 1N4148 32167-406-480 NTE519 ECG519 SK3100

D948, 49 1N4148 32167-406-480 NTE519 ECG519 SK3100

DC01 1N4148 32167-406-480 NTE519 ECG519 SK3100

DC05 Thru

DC08 1N4148 32167-406-480 NTE519 ECG519 SK3100

(1) Used in some versions.

SEMICONDUCTORS

(Select the replacement that gives the best results.)

Item No. Type No. Mfr. Part No. NTE Part No. ECG Part No. TCE Part No.

DV01 1N4148 32167-406-480 NTE519 ECG519 SK3100

DZ01 EQB01-33 32167-403-850 NTE147A ECG147A SK33V

DZ02 MTZ5.1B 32167-406-080 NTE5010A ECG5010A SK5A1

DZ05 EQA02-06D 32167-408-080 NTE5013A ECG5013A SK6A2

MTZ6.2B 32167-408-080 NTE5013A ECG5013A SK6A2

DZ06 MTZ6.8C 32167-441-011 NTE5014A ECG5014A SK6A8

DZ07 MTZ9.1B 32167-406-130 NTE5018A ECG5018A SK9A1

DZ08 EQA02-06D 32167-408-080 NTE5013A ECG5013A SK6A2

MTZ6.2B 32167-408-080 NTE5013A ECG5013A SK6A2

DZ09 EQA02-06D 32167-408-080 NTE5013A ECG5013A SK6A2

MTZ6.2B 32167-408-080 NTE5013A ECG5013A SK6A2

DZ10 MTZ5.1B 32167-406-080 NTE5010A ECG5010A SK5A1

DZ15 MTZ5.1B 32167-406-080 NTE5010A ECG5010A SK5A1

DZ31, 32 EQB01-33 32167-403-850 NTE147A ECG147A SK33V

DZ802 EQA02-06D 32167-408-080 NTE5013A ECG5013A SK6A2

MTZ6.2B 32167-408-080 NTE5013A ECG5013A SK6A2

DZ823 MTZ18A 32167-406-190 - - -

IC01 Z8612812PSC 32109-110-086 - - -

IC101 TA8725AN 32119-710-019 - - -

IC200 HCF0053 32199-500-000 - - -

IC301 TA8445K 32119-110-010 - - -

IC600 SBX1637A 32199-411-090 - - -

IC601 AN5836 32119-102-730 NTE1780 ECG1780 SK9731

IC602 TA8200AH 32119-201-190 NTE7068 ECG7068 -

IC801 TDA4601 32119-401-010 NTE7002 ECG7002 SK10471

IC901 SZM226EC - - - -

ICV01 TC4053BP 32119-201-310 NTE4053B ECG4053B SK4053B

LED01, 02 SL-5R 32309-110-230 - - -

DL-ILR 32309-110-230 - - -

Q100 KTC3197-AT 32137-301-080 NTE107 ECG107 SK3293

2SC388A -NTE107 ECG107 SK3293

Q105 KSC815-Y 32137-301-720 NTE123AP ECG123AP SK3854

Q202, 03 KSC815-Y 32137-301-720 NTE123AP ECG123AP SK3854

Q301, 02 KSC815-Y 32137-301-720 NTE123AP ECG123AP SK3854

Q400 KSC815-Y 32137-301-720 NTE123AP ECG123AP SK3854

Q401 KSC2331-Y 32137-301-560 NTE24 ECG24 SK3849

Q402 2SD1651YD 32159-210-003 NTE2331 ECG2331 SK9422

2SD1555 -NTE2331 ECG2331 SK9422

Q403 KSC815-Y 32137-301-720 NTE123AP ECG123AP SK3854

Q404 KSA539-Y 32137-401-530 NTE159 ECG159 SK3466

Q405 KSC815-Y 32137-301-720 NTE123AP ECG123AP SK3854

Q406 MC7812C 32117-901-110 NTE966 ECG966 SK3592

Q407 MC7809C 32117-401-120 - - -

Q500 KSA642-O 32137-103-430 NTE159 ECG159 SK3466

Q601, 80 KSC815-Y 32137-301-720 NTE123AP ECG123AP SK3854

Q702 Thru

Q704 KSC815-Y 32137-301-720 NTE123AP ECG123AP SK3854

Q708 Thru

Q710 2SC2068 -NTE376 ECG376 SK3219

KTC2068 32139-410-006 NTE376 ECG376 SK3219

Q801 2SC3552L 32149-301-010 NTE2348 ECG2348 -

Q808 KSC2331-Y 32137-301-560 NTE24 ECG24 SK3849

Q809 KSC815-Y 32137-301-720 NTE123AP ECG123AP SK3854

Q902 KSA539-Y 32137-401-530 NTE159 ECG159 SK3466

Q903 KSC2331-Y 32137-301-560 NTE24 ECG24 SK3849

SEMICONDUCTORS continued

(Select the replacement that gives the best results.)

Item No. Type No. Mfr. Part No. NTE Part No. ECG Part No. TCE Part No.

QC01 KSC815-Y 32137-301-720 NTE123AP ECG123AP SK3854

QV01 KSA539-Y 32137-401-530 NTE159 ECG159 SK3466

QV02, 03 KSC815-Y 32137-301-720 NTE123AP ECG123AP SK3854

QV05 KSA539-Y 32137-401-530 NTE159 ECG159 SK3466

QV06 KSC815-Y 32137-301-720 NTE123AP ECG123AP SK3854

SEMICONDUCTORS continued

(Select the replacement that gives the best results.)

Item No. Type No. Mfr. Part No. NTE Part No. ECG Part No. TCE Part No.

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