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Samsung WF24W6VN3X/XEF, Руководство по обслуживанию, Страница: 25 / 49

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Troubleshooting

5-4

5-4 No Sound (Video OK)

No

No

CHECK/REPLACE

A/V Front Assembly.

CHECK IC701

Pin 3,5

CHECK/REPLACE

Sound Module (MD701)

CHECK/REPLACE

IC701, C712, C719

CHECK IC601 Pin

Sound output 

CHECK/REPLACE

IC601, R601, R602

CHECK IC701

Pin 15,18

Yes

Yes

No

Yes

1

14 15

2

5-5 Power OFF/ON (Repeatedly)

CHECK Q403
COLLECTOR H-PULSE

SEE " NO-POWER"

NO

YES

CHE CK IC901
PIN26(H-SYNC )

CHE CK/REPLACE
IC901,Q907,C913
DZ402

NO

YES

CHE CK IC301
PIN7(V-BLANK)

CHE CK/REPLACE
Q301,Q302,D304

YES

NO

CHECK PIN6(+16.5V)

PIN1(-14V)

CHE CK/REPLACE
R409,R413,D407,D410
DZ302,DZ303

NO

YES

CHECK/RE PLACE

IC301,IC201

Содержание WF24W6VN3X/XEF

Страница 1: ... XEF COLOR TELEVISION RECEIVER CONTENTS Precautions Specifications and IC Data Disassembly and Reassembly Alignment and Adjustment Troubleshooting Exploded View and Parts List Electric Parts List Block Diagram PCB Layout Diagram Wiring Diagram Schematic Diagrams 1 2 3 4 5 6 7 8 9 10 11 ...

Страница 2: ...dle brackets metal cabinets screwheads and control shafts The current measured should not exceed 0 5 milliamp Reverse the power plug prongs in the AC outlet and repeat the test Fig 1 1 AC Leakage Test 6 Antenna Cold Check With the unit s AC plug disconnected from the AC source connect an electrical jumper across the two AC prongs Connect one lead of the ohmmeter to an AC prong Connect the other le...

Страница 3: ...wiring that appear to have overheated or that are otherwise damaged should be replaced with parts that meet the original specifications Always determine the cause of damage or overheat ing and correct any potential hazards 15 Observe the original lead dress especially near the following areas Antenna wiring sharp edges and especially the AC and high voltage power supplies Always inspect for pinche...

Страница 4: ...g and accessible conductive parts examples metal panels input terminals and earphone jacks 6 Insulation Checking Procedure Disconnect the power cord from the AC source and turn the power switch ON Connect an insulation resistance meter 500V to the blades of the AC plug The insulation resistance between each blade of the AC plug and accessible conductive parts see above should be greater than 1 meg...

Страница 5: ...erate electrical charges that damage ESDs 5 Use only a grounded tip soldering iron when soldering or unsoldering ESDs 6 Use only an anti static solder removal device Many solder removal devices are not rated as anti static these can accumulate sufficient electrical charge to damage ESDs 7 Do not remove a replacement ESD from its protective package until you are ready to install it Most replacement...

Страница 6: ...E M CI P AL I UHF CII P AL I VHF UHF CX P AL B G SE C AM B G CK P AL B G D K SE C AM B G D K CB P AL B G CS P AL B G D K SE C AM B G D K NT4 43 NT3 58 SYSTEM BAND PAL SECAM B G I PAL SECAM D K SECAM K1 PAL D NTSC M VHF 2 12 1 13 2 9 2 13 UHF 21 69 21 69 13 57 14 69 SYSTEM BAND PAL SECAM B G PAL SECAM D K K1 PAL I NTSC M Picture IF Carrier 38 90 38 90 38 90 38 90 Sound IF Carrier 33 40 32 40 32 90 ...

Страница 7: ... C OUP LE R IC 803 9 78R 05 SWITC HING R E GULATOR IC 804 10 KA7630 SWITC HING R E GULATOR 5 8V IC 901 11 SZM503AT MIC OM IC 902 12 24C 040 E E P R OM IC E 01 13 4558 EW DR IVE AMP IC N01 14 TDA9808 SIF DE TE C TOR NIC AM MODUL E IC N02 15 TDA9874H NIC AM DE MODULATOR IC A01 16 L A7567N SIF DE TE C TOR A2 STE R E O MODUL E IC A02 17 TDA9873H A2 DE MODULATOR IC M01 18 LA7566 SIF FM DE TE C TOR MONO...

Страница 8: ...6 Z8933112PSC Pin 42 X24CO4P Pin 8 TDA8395 Pin 16 TDA4665 Pin 16 IC TRANSISTOR TRANSISTOR TDA8133 KA7812 IN G OUT TRANSISTOR TRANSISTOR 2SD1651 2SD1650 KSD5072 KSD5071 KSD1711 B C E E B C KSA815 Y KSA539 Y IC UPC574J or KA33V G1962 K2950M K9253M SAW FILTER 1 E C B KSR1012 KSR1010 KSR2010 Fig 2 1 Semiconductor Base Diagrams ...

Страница 9: ...Disassembly and reassembly 3 1 3 Disassembly and Reassembly 3 1 Back Cover Removal 1 After removing the 7 screws pull the cabinet backwards ...

Страница 10: ...d from CN801 6 Separate the DC connector from CN401 7 Separate the CN501B 8P CRT connector from CN501 8 Separate the CNA05 5P A V side connector from CN602 9 Separate the CNA01 8P CRT connector from CN701 10 Separate the Focus Screen Wire from the FBT clamper 11 Separate the TBC wire 2P speaker wires from the wire clamper 12 Separate the CN701 CN602 connector from the wire clamper 13 Separate the ...

Страница 11: ...3 3 Speaker Removal Disassembly and reassembly 3 3 7 1 Remove the speaker by pressing the tension rib 1 Separate the speaker wires from D coil located on the bottom to the right side 2 Remove the screws ...

Страница 12: ...ds 2 Caution Because of the high vacuum and large surface area of the picture tube be careful while handling it 1 Always lift the picture tube by grasping it firmly around the faceplate 2 Never lift the tube by its neck 3 Do not scratch the picture tube or apply excessive pressure Fractures of the glass may cause an implosion ...

Страница 13: ...ustment must be the last step 4 2 Factory Service Mode 4 2 1 Procedure for the Adjustment Mode 1 This mode uses the standard remote control The Service Mode is activated by entering the following remote control sequence 1 STAND BY DISPLAY MENU MUTE POWER ON 2 The SERVICE FACTORY message will be displayed The Service Mode has three compo nents Adjustment Option and Reset 3 Access the Adjustment Mod...

Страница 14: ...OSCILLATOR 0 1 VOL VOLUME INITIAL LEVEL 0 63 PSL PAL VERTICAL SLOPE 0 63 PVS PAL VERTICAL SHIFT 0 63 PVA PAL VERTICAL AMPLITUDE 0 63 PHS PAL HORIZONTAL SHIFT 0 63 PEW PAL E W WIDTH 0 63 PEP PAL E W PALABOLA 0 63 PEC PAL E W CORNER 0 63 PET PAL E W TRAPEZIUM 0 63 VSC VERTICAL SCROLL 0 63 TSC TELETEXT SUB CONTRAST 0 63 SA SEPARATION ADJUSTMENT STEREO 0 15 QEW Q 12 8 9 MODEL E W WIDTH 0 7 PCT PIP CON...

Страница 15: ... cancelled The AGING mode is cancelled by repressing the HIDDEN or any key on the front pannel FACTORY MODE VALUE OSD INITIAL OSD INITIAL OSD INITIAL 2 CH LCO 1 FIXED TSC 20 FIXED AGC 10 VOL 25 SA 7 VCO 80 FIXED PSL 31 FIXED QEW 5 SBT 7 PVS 31 PCT 7 FIXED SCT 16 PVA 31 PTT 31 FIXED SCR 5 FIXED PHS 40 PHM 8 FIXED SC 11 FIXED PEW 38 PVP 31 FIXED RG 31 PEP 22 PHP 31 FIXED BG 31 PEC 22 NSR 3 FIXED CDL...

Страница 16: ... POLAND MODEL ONLY LANGUAGE WEST ENG GER FRA DUT SPA ITA SWE WEST EUROPE MARKET ENGLISH GERMANY FRANCE NETHERLANDS SPAIN ITALY SWEDEN EAST ENG CZE CRO RUM HUN POL EAST EUROPE MARKET ENGLISH CZECH CROATIA ROMANIA HUNGARY POLAND SYSTEM CF SECAM L L PAL SECAM B G CI PAL I UHF BAND ONLY CK PAL SECAM B G D K CX PAL SECAM B G CB PAL B G ATS OPTION ON OFF ATM FUNCTION NOT USED FIELD POL FIELD POS PHILIPS...

Страница 17: ...nnect or disconnect any wires while the TV is turned on Make sure that the power cord is disconnected before replacing any parts 8 To protect against shock hazard use an isola tion transformer 4 3 2 Automatic Degaussing A degaussing coil is mounted around the pic ture tube so that external degaussing after moving the TV should be unnecessary But the receiver must be properly degaussed upon install...

Страница 18: ...cilloscope probe 2 Input a gray scale pattern Use a pattern generator PM5518 3 Use the Picture mode for the STANDARD pic ture 4 Adjust the Screen VR on the FBT so that the voltage on the oscilloscope becomes 140 2 5V See Fig 4 1 4 3 6 Purity Adjustment 1 Warm up the receiver for at least 20 minutes 2 Plug in the CRT deflection yoke and tighten the clamp screw 3 Plug the convergence yoke into the C...

Страница 19: ...6 POLE CONVERGENCE 4 POLE CONVERGENCE Fig 4 3 Center Convergence Adjustment 31m m Vertical Green Belt Fig 4 4 1 2 a Set up 1 Warm up the TV for at least 30 minutes in the White Pattern 2 Input a Toshiba pattern b High Light Adjustment Set SCT to 40 5 fL in the Factory Service Mode with using CA100 See Fig 4 4 c Low Light Adjustment Set SBT to 1 5 0 2 fL in the Factory Service Mode with using CA100...

Страница 20: ...same time keeping the angle constant and superimpose the red and blue horizontal line in the center of the screen 6 Adjust the two tab pairs of the 6 pole magnets to superimpose the red and blue line onto the green Changing the angle affects the vertical lines and rotating both magnets affects the horizontal lines 7 Repeat adjustments 2 6 if necessary 8 Since the 4 pole magnets and 6 pole magnets ...

Страница 21: ... that the picture is vertically centered 3 Adjust with PVA so that the top and bottom margins of the picture are 4 4 Adjust PHS so that the picture is horizontally centered 5 Adjust with PEW so that the left and right margins of the picture are 5 6 Input a crosshatch pattern 7 Adjust PEP PEC PET for vertical linearity 4 4 5 5 ...

Страница 22: ...g 5 1 No Video Raster On No Sound Yes No Check Replace TU101 HC101 No Measure the Voltage of each of 8 pins of TU101 Check IC901 Pins 39 40 See No Video Sound OK See No Sound Video OK Check Replace IC901 IC201 IC902 IC701 Audio Module Yes ...

Страница 23: ...04 Pin 9 5V Check Replace IC801 D802 Check Replace IC804 KA7630 DZ905 DZ804 Check IC901 Pin 18 Stand by 0V Normal 5V Check Replace IC901 Check IC901 Pin 8 4V Check Replace IC901 µ com Check IC201 Pin 40 H out Check Replace IC201 Q402 Q403 No Check Q402 Q403 Check Replace DZ805 IC802 Yes Yes Yes ...

Страница 24: ...6 CVBS Check Replace IC201 Check IC201 Pins 19 20 21 R G B OUT Check IC202 pin 27 Y IN Check Replace IC201 D205 DZ204 Check IC501 on the CRT PCB Check Replace IC501 Check Replace R505 HEATER 6 3Vrms CRT V999 Yes No Check IC201 Pin 12 37 8V Check Replace IC804 KA7630 Yes Yes 2Vp p ...

Страница 25: ...put CHECK REPLACE IC601 R601 R602 CHECK IC701 Pin 15 18 Yes Yes No Yes 1 14 15 2 5 5 Power OFF ON Repeatedly CHECK Q403 COLLECTOR H PULSE SEE NO POWER NO YES CHECK IC901 PIN26 H SYNC CHECK REPLACE IC901 Q907 C913 DZ402 NO YES CHECK IC301 PIN7 V BLANK CHECK REPLACE Q301 Q302 D304 YES NO CHECK PIN6 16 5V PIN1 14V CHECK REPLACE R409 R413 D407 D410 DZ302 DZ303 NO YES CHECK REPLACE IC301 IC201 ...

Страница 26: ... 5 5 5 6 SMPS Power Supply Does Not Function 1 When F 802 is open C heck Replace F802 IC 801 D802 2 When F 802 is okay but SMP S does not function C heck Replace DZ801 DZ808 IC 802 DZ805 3 Others See 5 Troubleshooting ...

Страница 27: ...05K SPRING CS SUS304 0 6 OD12 2 H13 N4 1 1 6 AA64 00191A INDICATOR LED 28C7 ACRYL CLR 1 1 7 HA60 020004 SCREW TAPTITE RH 2S M3 L6 ZPC YEL SWRCH18 1 2 HA94 01694A ASSY CRT W76EGX023X215 380MG 32 ITC 1 2 1 AA65 30113A CLAMP D COIL NYLON 66 V2 BLK TVI 25 29 4 2 2 AA60 10051D SCREW ASSY WC HH M5 30 SWRCH18A ZPC 4 2 3 3704 001105 SOCKET CRT 11P 20PI 26 5PI NI 1 3 AA91 00150B ASSY HOLDER SPK DP 8OHM 15W...

Страница 28: ...pecification Remark Loc No Code No Description Specification Remark 7 Electrical Parts List 7 1 WF28W6VN3X XEF WF28W6VN3X XEF and WF24W6VN3X XEF Dissimilar Parts ASSY PCB MAIN OPT HA94 01802AASSY PCB MAIN OPT WF32W6VN S51A XEF ASSY CABINET FRONT HA91 00235AASSY CABINET FRONT 32W6 S51A 50HZ HB S ASSY HOLDER SPK AA91 00150BASSY HOLDER SPK DP 8OHM 15W AA91 001 ASSY PCB CRT HA95 00473AASSY PCB CRT 32W...

Страница 29: ... CERAMIC DISC 560pF 10 500V Y5P TP 7x4 5 C413 2401 000962 C AL 22uF 20 50V GP TP 5x11 5 C414 2306 000330 C FILM MPPF 7 7nF 3 1 6KV TP 28 5x18 5x12 C415 2306 000330 C FILM MPPF 7 7nF 3 1 6KV TP 28 5x18 5x12 C416 2303 001026 C FILM PPF 33nF 10 400V TP 20x15x8 7 5 C417 2306 001017 C FILM MPPF 680NF 5 400V TP 26X14 5X24MM C418 2201 000556 C CERAMIC DISC 470pF 10 500V Y5P TP 7x4 5 C419 2401 001397 C AL...

Страница 30: ...mm TP CW06 2301 000383 C FILM PEF 10nF 5 50V TP 6x7x3 2mm 5mm CW07 2301 000383 C FILM PEF 10nF 5 50V TP 6x7x3 2mm 5mm CW08 2401 002235 C AL 10UF 20 16V GP TP 5X11MM 5MM CW09 2305 000665 C FILM MPEF 100NF 5 63V TP 7 5X4 0X5 0MM CW10 2305 000665 C FILM MPEF 100NF 5 63V TP 7 5X4 0X5 0MM CW11 2401 001495 C AL 47uF 20 16V GP 5x11mm 5mm TP CW12 2301 000383 C FILM PEF 10nF 5 50V TP 6x7x3 2mm 5mm CW13 230...

Страница 31: ...E FERRITE BEAD AA 3 5x1x6mm 1500 2400G L808 3301 000287 CORE FERRITE BEAD AA 3 5x1x6mm 1500 2400G L901 2701 000189 INDUCTOR AXIAL 470NH 10 2 5X3 4MM L903 2701 000197 INDUCTOR AXIAL 5 6UH 10 2 5X3 4MM L904 2701 000211 INDUCTOR AXIAL 68uH 10 2 5x3 4mm L905 2701 000114 INDUCTOR AXIAL 10UH 10 2 5X3 4MM L906 2701 000114 INDUCTOR AXIAL 10UH 10 2 5X3 4MM L907 2701 000114 INDUCTOR AXIAL 10UH 10 2 5X3 4MM ...

Страница 32: ...16 2001 000660 R CARBON 33KOHM 5 1 8W AA TP 1 8X3 2MM R717 2001 000331 R CARBON 12KOHM 5 1 8W AA TP 1 8X3 2MM R718 2001 000969 R CARBON 75OHM 5 1 8W AA TP 1 8X3 2MM R719 2001 000527 R CARBON 22OHM 5 1 8W AA TP 1 8X3 2MM R720 2001 000387 R CARBON 16Kohm 5 1 8W AA TP 1 8x3 2mm R721 2001 000786 R CARBON 47KOHM 5 1 8W AA TP 1 8X3 2MM R722 2001 000290 R CARBON 10KOHM 5 1 8W AA TP 1 8X3 2MM R723 2001 00...

Страница 33: ... CARBON 1KOHM 5 1 8W AA TP 1 8X3 2MM RW13 2001 001131 R CARBON S 33Kohm 5 1 2W AA TP 2 4x6 4mm RW901 2011 000157 R NETWORK 10K 5 1 8W A SIP 6P TP SF101 2904 000302 FILTER SAW AV 38 90MHz ST 13 9dB PAL B G T401 AA26 50001RTRANS HORIZ DRIVE 80MH 580UH 4UH G11A EI19 ST T444 AA26 00008ATRANS FLYBACK FUH 34A001 S 34INCH 135V T801 AA26 20007WTRANS SWITCHING 90 260V 130 15 5 12 8V VDE S TOP AA63 40294BSH...

Страница 34: ...AL 33UH 5 2 5X3 4MM LC04 2701 000114 INDUCTOR AXIAL 10UH 10 2 5X3 4MM LC05 2701 000114 INDUCTOR AXIAL 10UH 10 2 5X3 4MM LDC01 AA96 30006AASSY LED GUIDE SL255D RED GRN PCB AA41 00149APCB CONTROL S51A 24W6 RC01 2001 000028 R CARBON S 100ohm 5 1 2W AA TP 2 4x6 4mm RC02 2001 000028 R CARBON S 100ohm 5 1 2W AA TP 2 4x6 4mm RC03 2001 000924 R CARBON 680OHM 5 1 8W AA TP 1 8X3 2MM RC04 2001 000429 R CARBO...

Страница 35: ...7 8 Samsung Electronics MEMO ...

Страница 36: ...T AC230V OR 220 240V SMPS TRANS CRT SPM 171EE IC MCU TTX RGB AMP TDA6108 TUNER TELE4 108A FBT FUH 29A003 VERTICAL AMP LA7845 H OUT TR STR KA3S1265R KA7630 H E A T E R V H HV 16 5V 14V 16 5V 180V 5V 8V 15V 155V SIF SAW FILTER TDA9814T SIF DETECTOR TDA9874 NICAM DECODER TDA9859 TDA7297 SPEAKER 8Ω 10W X 2 AUDIO PROCESSOR 2CH AUDIO AMP AUDIO MODULE ...

Страница 37: ...04 102 131 DZ305 94 133 DZ306 118 135 DZ402 90 91 DZ403 75 165 DZ501 309 190 DZ502 316 190 DZ503 296 190 DZ505 321 190 DZ601 223 213 DZ602 223 215 DZ603 223 223 DZ604 223 220 DZ701 49 148 DZ702 54 148 DZ703 59 148 DZ704 41 141 DZ705 64 148 DZ801 231 33 DZ802 218 26 DZ803 150 122 DZ804 177 120 DZ805 183 12 DZ807 166 120 DZ808 209 19 DZ901 227 165 DZ904 211 145 DZ905 280 108 DZ906 321 82 DZX01 39 13...

Страница 38: ...CUS SW801 M I C O M S O U ND AMP CN602 P IP T T X MO D UL E T D A 8 8 4 4 T U N E R A U D I O M O D U L E CN701 CN502 CN401 S MP S T R ANS CN501 CN501B A S S Y P W B MA IN C R T ANODE DY SCREEN SOCKET CRT F B T CN701A CN06A CN05A R L ASSY PWB FRONT A V ...

Страница 39: ...51 50 1 2 3 8 4 5 6 7 10 9 11 12 Schematic Diagrams 11 1 Samsung Electronics 11 Schematic Diagrams 11 1 MAIN Power Power Line Signal Line 1 2 3 4 5 6 7 8 9 10 11 12 50 51 ...

Страница 40: ...matic Diagrams 11 2 Samsung Electronics 11 2 PWB MAIN One Chip 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Power Line Signal Line 24 23 25 26 27 28 29 30 31 32 22 21 20 19 18 17 16 15 14 13 ...

Страница 41: ...Schematic Diagrams 11 3 Samsung Electronics 11 3 PWB MAIN CRT u COM 33 42 40 41 39 37 36 38 34 35 43 45 44 Power Line Signal Line 33 34 35 36 37 38 40 41 42 43 44 45 39 ...

Страница 42: ...Schematic Diagrams 11 4 Samsung Electronics 46 47 48 49 11 4 PWB MAIN SUB Power Line Signal Line 46 47 48 49 ...

Страница 43: ...Schematic Diagrams 11 5 Samsung Electronics 11 5 PWB MAIN Sound Module ...

Страница 44: ...Schematic Diagrams 11 6 Samsung Electronics 11 6 MICOM TTX A V SIDE ...

Страница 45: ...Schematic Diagrams 11 7 Samsung Electronics 11 7 PWB MAIN SOUND MODULE STEREO ...

Страница 46: ...Schematic Diagrams 11 8 Samsung Electronics 11 8 PWB MAIN SOUND MODULE NICAM ...

Страница 47: ...Schematic Diagrams 11 9 Samsung Electronics 11 9 PWB MAIN PIP TTX ...

Страница 48: ...Schematic Diagrams 11 10 Samsung Electronics 11 10 PWB MAIN PIP ...

Страница 49: ...ELECTRONICS Samsung Electronics Co Ltd AUG 2000 Printed in Korea 3S51A W3201 ...

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