Samsung GH15H series Скачать руководство пользователя страница 10 | Manualshive

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CONFIDENTIAL

3 Disassembly and Reassembly

GH15H*

3-3

4. Please fix the new lamp

units on the LCD module :
opposite process 2 and 3

*

Replacement of lamp unit should be done at the power off state and recommanded clean
bench condition.

3-3 Reassembly

Reassembly procedures are in the reverse order of Disassembly procedures.

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Содержание GH15H series

Страница 1: ... LCD MONITOR CONTENTS 1 Precautions 2 Product Specifications 3 Disassembly Reassembly 4 Troubleshooting 5 Exploded View Parts List 6 Electrical Parts List 7 Block Diagram 8 Wiring Diagram 9 Schematic Diagrams 10 Panel Description CONFIDENTIAL ...

Страница 2: ...liances and Underwriters Laboratories UL Publication UL1410 59 7 Figure 1 1 Leakage Current Test Circuit 4 With the unit completely reassembled plug the AC line cord directly into a 120V AC outlet With the unit s AC switch first in the ON position and then OFF measure the current between a known earth ground metal water pipe conduit etc and all exposed metal parts including metal cabinets screwhea...

Страница 3: ...switch ON Connect an insulation resistance meter 500 V 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 megohm 6 Always connect a test instrument s ground lead to the instrument chassis ground before connecting the positive lead always remove the instrument s ground lead last 6 Do not remove ...

Страница 4: ... Display Horizontal Vertical 304 1 mm 228 1 mm AC power voltage Frequency AC 90 264 Volts 60 50 Hz 12V 3A Power Consumption 25 W normal Dimensions Unit W x D x H With Simple Stand 15 4 x 15 1 x 6 8 Inches 391 4 x 383 6 x 173 mm Without Simple stand 15 4 x 11 5 x 2 5 Inches 391 4 x 292 8 x 64 0 mm With Pivot Stand 15 4 x 15 1 x 6 8 Inches 391 4 x 383 6 x 173 mm 15 4 x 17 1 x 6 8 Inches 391 4 x 433 ...

Страница 5: ... 15 Red Green Blue GND GND DDC Return GND R GND G GND B No Connection GND Sync Self Test GND DDC Data H Sync V Sync DDC Clock Red Green Blue GND GND DDC Return GND R GND G GND B No Connection GND Sync Self Test GND DDC Data H V Sync Not Used DDC Clock Red Green H V Sync Blue GND GND DDC Return GND R GND G GND B Not Used GND Sync Self Test GND DDC Data Not Used Not Used DDC Clock ...

Страница 6: ...ck porch R Active time E Front porch S Front porch VGA3 60 Hz 640 x 480 640 72 Hz 640 x 480 640 75 Hz 640 x 480 800 56 Hz 800 x 600 800 60 Hz 800 x 600 VGA1 70 Hz 640 x 350 VGA2 70 Hz 720 x 400 Table 2 1 Timing Chart 31 469 31 777 3 813 1 589 26 058 0 318 70 087 14 268 0 064 0 858 13 155 0 191 28 322 Negative Positive Separate 31 469 31 778 3 813 1 589 26 058 0 318 59 940 16 683 0 064 0 794 15 761...

Страница 7: ... Separate 49 726 20 110 1 117 3 910 14 524 0 559 74 551 13 414 0 060 0 784 12 549 0 020 57 284 Negative Negative Separate Mode MAC Timing Q R S P O Video Sync Sync Horizontal Vertical C D E P O B A Video Sync Sync Separate Sync C D A O E B P Video Sync Sync Video Q R S A Line time total B Horizontal sync width O Frame time total P Vertical sync width C Back porch D Active time Q Back porch R Activ...

Страница 8: ...e Function PCB 3 1 3 Standard Stand Disassembly 1 Remove 2 screws from the Stand front 2 Remove 7 screws from the Stand Bottom 3 Remove Stand Rear from the Stand assembly 4 Remove 5 screws from the Stand assembly 5 Remove the Neck front from the Stand assembly 6 Remove 2 screws from the Stand assembly 7 Remove Neck Rear from the Stand assembly 8 Remove 4 screws from the Stand assembly GH15H 3 1 CO...

Страница 9: ...1 After confirm there is nothing on the disk Turn the LCD module over and put it on a flat desk set to the ground 3 2 Replacement Order of Lamp Assemblies 2 Push down the stopper and slide the lamp unit 3 Please take out the lamp unit from the LCD module ...

Страница 10: ...ase fix the new lamp units on the LCD module opposite process 2 and 3 Replacement of lamp unit should be done at the power off state and recommanded clean bench condition 3 3 Reassembly Reassembly procedures are in the reverse order of Disassembly procedures ...

Страница 11: ...CONFIDENTIAL Memo 3 Disassembly and Reassembly 3 4 GH15H ...

Страница 12: ...following circuits No raster appears Audio PCB SMPS PCB Main PCB 12V develop but no screen Main PCB 12V does not develop Audio PCB SMPS PCB 4 If you push and hold the EXIT button for more than 5 seconds the monitor automatically turns back to the factory preset 4 1 No Power Does proper DC 12 V appear at FT901 FT902 or Pin 1 2 of CN101 Check SMPS or CN101 Yes No Does proper DC 3 3 V appear at Pin 7...

Страница 13: ...V sync pulse appeaer at Pin 30 of IC301 2 Replace IC301 or check its related circuit No Yes Does the V sync pulse appeaer at Pin 148 of IC105 3 Replace IC105 or check its related circuit No Yes No Yes Replace IC251 or check its related circuit No Yes Replace LCD Panel Yes 1 4 2 No Video Does the clock pulse appeaer at Pin 44 of IC105 5 Do the pulse appeaer at Pin 43 of IC105 6 Does the waveforms a...

Страница 14: ...CONFIDENTIAL 4 Troubleshooting GH15H 4 3 1 5 6 7 2 3 4 WAVEFORMS ...

Страница 15: ...01 SW808 Yes Refer to 4 4 No OSD Display 4 4 No OSD There is video but no OSD While pushing a front control button does any pulse appear at Pin 46 47 and 55 56 and 63 64 of IC105 5 No Do sync signals appear at Pin 44 150 and 43 of IC105 1 Replace IC105 3 Yes Replace IC105 or check its related circuit Replace IC105 or check its related circuit 2 Replace CN251 Replace IC251 and IC252 Yes No 5 ...

Страница 16: ...5 16 of IC401 and Pin 5 6 7 8 of Q403 Check Q403 Q401 and related circuit Yes Check CN402 outputs No Does the sound signal appear at Pin 14 and 17 of IC401 Check IC401 and related circuit Yes No Does the sound input signal appear at Pin 4 and 9 of IC401 Check CN401 and related circuit Yes ...

Страница 17: ...he connection between the PC and monitor secure Connect the cable between the PC and monitor Yes OK No Can you hear any sound from the Headphones Check CN802 on the Audio PCB and related circuit D805 D806 R811 and R812 Yes No Is the Internal Microphone connector attached Check the connection between CN808 on the Audio PCB and the Internal Microphone Yes No Does the Internal Microphone work Check Q...

Страница 18: ...CONFIDENTIAL GH15H 5 1 5 Exploded View and Parts List ...

Страница 19: ...5 Exploded View Parts List 5 2 GH15H Memo CONFIDENTIAL ...

Страница 20: ...00056A BN44 00056A 2203 002793 SNA C2 BN83 00026A CKD BN44 00053A BN44 00053A 2301 001244 SNA C2 BN83 00085A CKD BN44 00056A BN44 00056A 2203 001132 SNA C20 BN83 00039A CKD BN44 00053A BN44 00053A 2201 000023 SNA C20 BN83 00086A CKD BN44 00056A BN44 00056A 2203 002793 SNA C21 BN83 00082A CKD BN44 00056A BN44 00056A 2203 001458 SNA C22 BN83 00083A CKD BN44 00056A BN44 00056A 2203 000455 SNA C23 BN8...

Страница 21: ...02 SNA CN5 BN83 00111A CKD BN44 00056A BN44 00056A 3711 004702 SNA D1 BN83 00040A CKD BN44 00053A BN44 00053A 0402 000103 SNA D10 BN83 00074A CKD BN44 00056A BN44 00056A 0407 001009 SNA D12 BN83 00074A CKD BN44 00056A BN44 00056A 0407 001009 SNA D13 BN83 00075A CKD BN44 00056A BN44 00056A 0402 001110 SNA D14 BN83 00076A CKD BN44 00056A BN44 00056A 0407 000122 SNA D15 BN83 00077A CKD BN44 00056A BN...

Страница 22: ...0053A CKD BN44 00053A BN44 00053A 0501 000303 SNA Q2 BN83 00068A CKD BN44 00056A BN44 00056A 0504 000158 SNA Q23 BN83 00071A CKD BN44 00056A BN44 00056A 0501 000462 SNA Q24 BN83 00071A CKD BN44 00056A BN44 00056A 0501 000462 SNA Q3 BN83 00054A CKD BN44 00053A BN44 00053A 0501 000586 SNA Q3 BN83 00070A CKD BN44 00056A BN44 00056A 0504 000129 SNA Q4 BN83 00070A CKD BN44 00056A BN44 00056A 0504 00012...

Страница 23: ...4 00056A 2007 000934 SNA R45 BN83 00087A CKD BN44 00056A BN44 00056A 2007 000671 SNA R46 BN83 00087A CKD BN44 00056A BN44 00056A 2007 000671 SNA R47 BN83 00089A CKD BN44 00056A BN44 00056A 2007 000794 SNA R48 BN83 00089A CKD BN44 00056A BN44 00056A 2007 000794 SNA R49 BN83 00090A CKD BN44 00056A BN44 00056A 2007 000098 SNA R5 BN83 00013A CKD BN44 00053A BN44 00053A 2003 000738 SNA R5 BN83 00096A C...

Страница 24: ...00064A CKD BN44 00053A BN44 00053A INSULATOR SNA T1 BN83 00056A CKD BN44 00053A BN44 00053A BN26 00002A SNA T1 BN83 00109A CKD BN44 00056A BN44 00056A LH26 00144A SNA T2 BN83 00109A CKD BN44 00056A BN44 00056A LH26 00144A SNA TH1 BN83 00055A CKD BN44 00053A BN44 00053A 1404 001020 SNA U1 BN83 00066A CKD BN44 00056A BN44 00056A 1201 000227 SNA U2 BN83 00067A CKD BN44 00056A BN44 00056A 1202 000104 ...

Страница 25: ...100nF 10 16V X7R TP 1608 C155 2203 005005 C CERAMIC CHIP 100nF 10 16V X7R TP 1608 C156 2203 005005 C CERAMIC CHIP 100nF 10 16V X7R TP 1608 C157 2402 000108 C AL SMD 10uF 20 16V WT TP 4 3x4 3x5 4 C159 2203 005005 C CERAMIC CHIP 100nF 10 16V X7R TP 1608 C160 2203 005005 C CERAMIC CHIP 100nF 10 16V X7R TP 1608 C161 2203 005005 C CERAMIC CHIP 100nF 10 16V X7R TP 1608 C162 2203 005005 C CERAMIC CHIP 10...

Страница 26: ... SNA FT113 3301 001145 CORE FERRITE BEAD AB 4 5x1 6x1 6mm SNA FT114 3301 001145 CORE FERRITE BEAD AB 4 5x1 6x1 6mm SNA FT901 3301 001145 CORE FERRITE BEAD AB 4 5x1 6x1 6mm SNA FT902 3301 001145 CORE FERRITE BEAD AB 4 5x1 6x1 6mm SNA FT903 3301 001145 CORE FERRITE BEAD AB 4 5x1 6x1 6mm SNA FT904 3301 001145 CORE FERRITE BEAD AB 4 5x1 6x1 6mm SNA FT905 3301 001145 CORE FERRITE BEAD AB 4 5x1 6x1 6mm ...

Страница 27: ...100ohm 5 1 16W DA TP 1608 R205 2007 000070 R CHIP 0ohm 5 1 16W DA TP 1608 R207 2007 000070 R CHIP 0ohm 5 1 16W DA TP 1608 R301 2007 000078 R CHIP 1Kohm 5 1 16W DA TP 1608 R314 2007 000074 R CHIP 100ohm 5 1 16W DA TP 1608 R316 2007 000074 R CHIP 100ohm 5 1 16W DA TP 1608 R317 2007 000074 R CHIP 100ohm 5 1 16W DA TP 1608 R320 2007 000074 R CHIP 100ohm 5 1 16W DA TP 1608 R321 2007 000074 R CHIP 100oh...

Страница 28: ...W DA TP 1608 R918 2007 000092 R CHIP 15Kohm 5 1 16W DA TP 1608 R919 2007 000070 R CHIP 0ohm 5 1 16W DA TP 1608 R973 2007 000075 R CHIP 220ohm 5 1 16W DA TP 1608 R974 2007 000120 R CHIP 680ohm 5 1 16W DA TP 1608 R975 2007 000090 R CHIP 10KOHM 5 1 16W DA TP 1608 R976 2007 000090 R CHIP 10KOHM 5 1 16W DA TP 1608 RA130 2011 000002 R NETWORK 22ohm 5 63mW L CHIP 8P TP RA131 2011 000002 R NETWORK 22ohm 5...

Страница 29: ...UB FUNCTION GH15MS GH15_FUNCTION SNA BN83 00125A CKD BN59 000167A BN59 000167A BN41 00094A SNA SW1 BN83 00126A CKD BN59 000167A BN59 000167A 3404 000243 SNA SW2 BN83 00126A CKD BN59 000167A BN59 000167A 3404 000243 SNA SW3 BN83 00126A CKD BN59 000167A BN59 000167A 3404 000243 SNA SW4 BN83 00126A CKD BN59 000167A BN59 000167A 3404 000243 SNA SW5 BN83 00126A CKD BN59 000167A BN59 000167A 3404 000243...

Страница 30: ...M 70MM EMI SNA CIS BN63 00055A GASKET GH15LS MS DS 6 0MM 10MM 90MM EMI SNA CIS BN63 00056A GASKET GH15MS DS LS 4MM 30MM 320MM 71TSSK 30 4 320 13 SNA CIS BN68 00187W LABEL MARK SEC SN PANNEL ART PAPER 100G 30 10 BLK WHT SNA CIS BN72 00249A CAP BOSS GH15HS ABS PC IV16 5V BN92 00214A ASSY P MATERIAL GH15LS N WW WW SNA CIS BH69 00328B PAD EDGE ML17 DW3 200 1370 YEL SNA CIS BH69 00346K PACKING PAD RB15...

Страница 31: ...Memo 6 Electrical Parts List 6 12 GH15H CONFIDENTIAL ...

Страница 32: ...CONFIDENTIAL GH15H 7 1 7 Block Diagram ...

Страница 33: ...CONFIDENTIAL 7 Block Diagrams 7 2 GH15H Memo ...

Страница 34: ...CONFIDENTIAL 8 Wiring Diagram GH15H 8 1 8 Wiring Diagram ...

Страница 35: ...Memo 8 Wiring Diagram 8 2 GH15H CONFIDENTIAL ...

Страница 36: ...T906 BLM41P600S 1 A 2 B BLM41P600S FT113 A 1 B2 U22 1 5 6 D2 D3 7 8 D4 G1 4 1 S1 S2 2 3 S3 5V_FE 5V_FE SI4435DY Q192 D1 1 16W 10K R190 50V MO C190 100pF 50V MO VCC 5 Y 4 C194 10nF 8 IC106 NC7SZ04P5X A 2 GND 3 NC 1 SUPLECODE 1 2 3 4 5 6 7 MO 50V 0 01nF C173 RC205 C172 15pF 50V MO RA132 1 2 3 4 5 6 7 8 X100 Q0 Q1 TP80 1 B C E 3 3V_S AS 20 000 20 FUND SMD 2SC2412K Q Q106 100nF 16V 100nF 16V C138 10K ...

Страница 37: ...CONFIDENTIAL 9 2 GH15H 1 5 6 7 2 3 4 9 Schematic Diagrams ...

Страница 38: ...100uF C409 BLM41P600S FT402 1 R413 1 16W 100K 33uF C420 MO 50V 100pF C403 U41 1 2 U28 1 16V C413 100nF slcon2p CN401 100K 1 16W R412 16V 470uF C412 C410 470uF 16V 1 TP911 1 U32 1 U33 U29 1 1 16W 1K R405 U18 1 U27 1 1 100 R401 U31 1 U25 12V_IN 12V_AUDIO C406 10uF 16V 1 U23 1 TP914 1 U36 1 U37 16V C414 100nF TP913 1 FT401 BLM41P600S 1 A 2 B R403 100 SI4435DY 5 D1 6 D2 D3 7 8 D4 4 G1 S1 1 2 S2 3 S3 2...

Страница 39: ...CONFIDENTIAL 9 Schematic Diagrams 9 4 GH15H Memo ...

Страница 40: ...o Ltd 416 Maetan 3Dong Paldal Gu Suwon City Kyungki Do Korea Printed in Korea P N BN81 00026E 00 http www samsungmonitor com SyncMaster Worldwide http www samsung monitor com SyncMaster USA http www sec co kr monitor Korea ...

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