Philips LC6231 Service Manual
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Philips LC6231 Service Manual

Philips LC6231 Service Manual

Portable lcd projector
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Portable LCD projector
Contents
9. Pars list
Published by Consumer Electronics
©
Printed in The Netherlands
Copyright reserved
LC6231
LC7181
Garbo / Garbo Matchline
Page
1-1
2-1
3-1
4-1
5-1
6-1
7-1
8-1
9-1
Subject to modification
3122 435 40550

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Summary of Contents for Philips LC6231

  • Page 1: Table Of Contents

    Portable LCD projector LC6231 LC7181 Garbo / Garbo Matchline Contents Page 1. Safety guidelines 2. Specifications 3. Warnings & Notes 4. Mechanical instructions 5. Block diagrams & Wiring diagram 6. Diagrams & PWB layouts 7. Directions for use 8. Optical alignments 9.

  • Page 2: Safety Guidelines

    Consequently, Philips has not undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not recommended by Philips must first satisfy himself thoroughly that neither his safety nor the safe operation of the equipment will be jeopardized by the service method selected.

  • Page 3: Specifications

    [metres] [inch] [metres] [inch] [metres] Ceiling mount (LCA2211/00) VGA extension cable, 15 metres (LCA5300/00) Executions LC6231/17 USA version LC7181/17 USA version 1086 LC6231/40 RoW version LC7181/40 RoW version LC6231/45 UK version LC7181/45 UK version 1552 * : depending on regional requirement...

  • Page 4: Warnings & Notes

    3. Warnings & Notes LC6231/LC7181 Warnings Notes Safety regulations require that the unit should be returned in The direct voltages and oscillograms should be measured its original condition and that components identical to the with regard to earth (4), or hot earth (5) as this is called.

  • Page 5: Mechanical Instructions

    4. Mechanical instructions LC6231/LlC7181 Opening the cabinet Remove the 4 screws (D) holing the top cover (Fig. 3). If the 4 screws are removed, the top cover can be lifted off. Please be careful not to pull of the cable to the keyboard.
  • Page 6 LC6231/LC7181 Remove the 6 screws “F” holding the top shield Remove screw “K” and connectors “L” (Fig. 8). (Fig. 5). Then remove the 3 screws “G” and the Nor the DRB (Drive Boards) can be removed. 2 screws “H” (Fig. 6). Now the top shield can be DRB Board removed.
  • Page 7 LC6231/LlC7181 Remove the 4 screws “M” (Fig. 10). Now the side cover can To operate the projector in this situation, connect the SSB be removed. and DRB together again, and connect the top-cover, LCD fan and dust filter switch to the SSB. Put some insulation under the SSB and DRB board.
  • Page 8 LC6231/LC7181 Remove screws “P” to remove the Power supply (Fig. 13). Mounting of air guide: First put the bottom pin into hole “R”, and then click the top pin into hole “S”. (Fig. 16). Power Supply Engine CL 266450004_057.eps Fig. 13 240402 CL 266450004_060.eps...

  • Page 9: Block Diagrams & Wiring Diagram

    5. Block diagrams & Wiring diagram LC6231/LlC7181 BLOCK DIAGRAM Audio in Data IR Receiver Keyboard Leds Audio in Video Downstream Data Video Audio Audio control ampl. controller Flash memory EEPROM PW 166 Drive electronics Video CVBS Scaler sync panels decoder...

  • Page 10: Video Processing

    LC6231/LC7181 DATA AD CONVERSION +3V3 7202 AD9886 75Ω GRE 0-7 PWTERM terminat GRO 0-7 7000 AD8183 R_DATA GGE 0-7 G_DATA GGO 0-7 B_DATA BPBCB GBE 0-7 GBO 0-7 RPRCR CLOCK CONTROL 7022 7020 HEF4053 BLKSPL EEPROM DDCSCL GCOAST DDSSDA RXD-TXD CL 26645004_028.eps...

  • Page 11: Audio Processing

    LC6231/LlC7181 SCALER / FRAMEBUFFER / MICROPROCESSOR 7510 7511 AM29LV800 CY62127 7501 ST24E16 FLASH ROM +3V3 EEPROM 7300 PW166 +2V5 ROM/RAM INT I/O PORTS UART MCKEXT VIDEO CLOCK VIDEO µPROC. PROC. PROC. DCKEXT DATA FRAME COLOUR SCALER PROC. BUFFER MEMORY CONTROL...

  • Page 12: Protection Circuits

    LC6231/LC7181 +3V3 7108 PD1USBH11 UPSTREAM 31, 32 7102 18, 19 I 2 C2 FXO-31 INTH11 INTH11 INTUSB 7727 S87C654 7719 CY6264 P1-4 AD0-AD7 I 2 C5 10,11 7737 I 2 C2 74HCT573 AU0-AU7 PROCESSOR KEYB0 KEYBOARD KEYB5 CLKOUT 21-25 STANDBY STANDBY SENSE CL 26645004_032.eps...

  • Page 13: Power Supply Board

    LC6231/LlC7181 Lamp supply board 1902 +300V to PSB Lamp Lit Lamp is on Supply to SSB Control Lamp Start Lamp EN 26645004_034.eps 160402 POWER SUPPLY BOARD 100- +295V Auto- To lamp 250V voltage supply +295V panel Standby +5 STBY supply...
  • Page 14 LC6231/LC7181 DRIVE PROCESSING Sub-sampling Clock Microprocessor driver STRB3 (level conversion) Powersupply Sub-sampling Clock driver EEPROM (level conversion) LCCOM Sub-sampling Clock LCD Video driver Processing (level conversion) Clock generation 26645004_097.eps 160103 DRIVEBOARD MICROPROCESSOR 7206 7203 7204 7205 TMP91CW12A 74CV573 CY62128 M29W400...
  • Page 15 LC6231/LlC7181 7300 L3EO7050 KOB Ch1-3(9:0) Contrast Uniformity Gamma OUT_PANEL 1-3 Bright Correction HSYNC Clock Generator SHCLK VSYNC Serial Interface 120 121 SDATA GAMMA CORRECTION SCLK WHITE POINT SETTING 26645004_099.eps 3 Wire (2:0) 140203 CLOCK GENERATION 7150 L3EO2090FOA 26-60 DX (RGB)
  • Page 16 LC6231/LC7181 D5-6-7 STSQ0 CLKE SUBSAMPLING SHCLK +15V 7505 L3EO6070 +3V3 Timing gen RVID 1 DDG0-9 DDR 0-9 Inverter RVID 3 RVID 5 To the LCD FRPR RVID 7 RVID 9 RVID 11 26645004_100.eps 160103 D5-6-7 +5 +15 LEVEL SHIFTING 7504...
  • Page 17 LC6231/LC7181...

  • Page 18: Diagrams & Pwb Layouts

    6. Diagrams & PWB layouts LC6231/LC7181 1210 BLOCK DIAGRAM 1300-A J1 1300-B H1 1300-C I1 DRE(7:0) 1300-D H1 DBE(7:0) DGE(7:0) 1300-E J1 RAM_ROM SCALER 3V3PW 3V3PW 1300-F K1 GBLKSPL 1410 2V5PW 2V5PW GBLKSPL 917735-1 GCOAST 3V3PW DATA IN GCOAST 3V3PW...
  • Page 19 LC6231/LC7181 2200 3237 AD CONVERSION 2201 3239 2202 3242-A K13 3V3V2 5VAD 5201 I260 3V3V3 2203 3242-B K13 3V3V3 2204 3242-C J13 100n 5202 I262 3V3VD 7200 MC33269D 2205 3242-D J13 2216 5203 I200 3V3V1 2206 3243 I201 5205 I264...

  • Page 20: Video Decoding

    LC6231/LC7181 1921 5316 VIDEO DECODING 2300 5318 2302 5320 2304 6300 2305 6302 2306 6304 2308 6306 2310 6308 2312 6310 2314 6312 5302 VID. DEC. SUPPLY MC33269D 7300 2316 6314 3V3VIDD 5300 I301 I302 I303 2318 6316 5306 3V3VIDA...
  • Page 21 LC6231/LC7181 1922 2400 3454-A 3401 6402 SCALER 2401 3V3PW TLMG3100 470R 2402 6403 3403 DATAHD TLMG3100 2403 470R 3455-D 2404 SCLK 3454-C 2V5PW 2V5PW 2V5PW 2V5PW 2V5PW 2V5PW 2V5PW 2V5PW 2V5PW 2V5PW 2V5PW 3455-C ICSSTRB 3454-B 2405 SDATA 3455-B ICSCLK...
  • Page 22 LC6231/LC7181 2500 RAM_ROM_ EBUG 2502 2504 RESET GENERATOR 2506 5511 2510 5510 PARAMETER EEPROM 2514 7503 3502 S1708 2516 4 IN NMI_ 3500 SAMP T.C. 7501 7502-A 3502 F500 F502 ST24E16 74HCT32 7502-C RST_ 3V3PW SAMP 3V3PW 1 E0 74HCT32...
  • Page 23 LC6231/LC7181 2600 5620 POWER CLOCKGENERATION 2602 5622 2604 5624 2606 5626 2608 5628 CLOCK BUFFERS CLOCK GENERATOR CLOCK GENERATOR 3V3CLK 2610 5630 7600-D 5602 2612 5632 74LVC126A 2614 5634 2616 5636 2618 5638 2620 5640 5608 3602 7602 2622 5642...
  • Page 24 LC6231/LC7181 1700 7723-C 5VSBA 5VSBA I/O_CONTROLLER 2710 7723-D 2712 7727 2725 7731 I770 2726 7733 VBUS 3704 3703 I700 I701 2727 7737 7712 7711 VCCPS2 BC847C BC847C 100K 100K 2729 7741-A 5703 5VSTBY 5VSTBY1 2731 7741-B 5VSTBY1 7715-C 7715-F 2733...
  • Page 25 LC6231/LC7181 2800 5806 2802 5808 2804 5810 AUDIO CONTROL / AMPLIFICATION 2806 5812 2808 5814 2810 6800 2818 6802 2820 6804 2846 6806 2848 6808 2850 6810 2852 6812 2854 6814 2856 6816 2858 7802 AUDIO CONTROL 2860 7804 3894...

  • Page 26: Fan Control

    LC6231/LC7181 2142 5916 2716 5918 FAN CONTROL FAN SENSE 2900 5920 2902 5922 2904 5924 2906 5926 3740 7708 CONNECTORS 2910 5928 BC847C 2912 5930 LAMPDRVCTRL(1:4) MAINFAN(1:3) LAMP 2914 5932 DRIVER 2916 5934 7904-F 7904-D CONTROL FAN DRIVER SCL5 5908...
  • Page 27 LC6231/LC7181 6-10 2000 6024 HDDATA SWITCH/DDC 2002 6026 2004 7000 2006 7002 2008 7004 2010 7006 2012 7008 2016 7010-A H8 2018 7010-B I8 2020 7010-C J13 2024 7010-D K12 2026 7014 2028 7016 2030 7022-A L11 6000 6002 2032...
  • Page 28 6-11 LC6231/LC7181 2100 2102 2104 2106 2108 2110 2112 2114 5VSTBY 5VSTBY 2116 2118 2120 2122 2124 2126 2128 2130 3V3STBY 3V3STBY 3V3STBY 3V3STBY 5100 2132 5VSTBY 3V3STBY 2134 2136 2138 UP_DM 2140 3V3STBY 5102 3100 7120-A 3V3STBY 3110 5VSTBY...
  • Page 29 LC6231/LC7181 6-12 1580 C6 2418 C4 3116 E2 3626 D3 3978 A2 6022 D1 1600 A6 2419 C4 3118 E2 3628 E2 3988 A2 6024 C1 1620 A2 2420 B3 3120 D1 3630 D3 3990 A3 6100 E1 1710 F2...
  • Page 30 LC6231/LC7181 6-13 1210 C6 2618 A5 3080 D6 3816 F3 5959 E6 1300 A7 2620 A5 3082 D6 3842 F3 5970 D5 1320 B7 2624 A5 3084 D6 3846 F3 6012 C5 1410 E3 2626 A4 3086 C6 3850 E3...
  • Page 31 LC6231/LC7181 6-14 1101 G4 2100 I3 2101 I6 DRIVEBOARD INPUT 5100 I3 5101 I6 CMODE CMODE RSTn MODE MODE RSTn nrsA_panel123 NRSA DYOUT CLYOUT ET7050 CLXOUT_panel1 TRST lccom_panel1 panel1 JTAG DXOUT_panel1 nrsC_panel1 SHCLK_panel1 1101 panel1_R_Ln PLLCLK 917734-1 out_panel1(9:0) ch1(9:0) panel1_CLKE_On...
  • Page 32 6-15 LC6231/LC7181 1200 3269 2200 3270 2201 5200 MICROPROCESSOR 2202 5201 2203 5202 2204 5203 2205 5204 2206 5205 2207 5206 2208 5207 2209 5208 +3V3 2210 6200 3207 FRSTn 2211 6201 3200 7200 2212 7200 6200 DS1815 BAT54 +3V3up...

  • Page 33: Gamma Correction

    LC6231/LC7181 6-16 2300 3362-A K11 2301 3362-B K11 2302 3362-C K11 GAMMA CORRECTION 2303 3362-D K11 2304 3363 2305 3367 2306 3368-A K11 2307 3368-B K11 2308 3368-C L11 2309 3368-D L11 +3V3 2310 3370 2311 3375 +2V5 2312 3376...
  • Page 34 6-17 LC6231/LC7181 2400 7401-A C8 2401 7401-B C11 POWER SUPPLY/LCD CONTROL/PARAMETER EEPROM 2402 7402 2403 7403 2404 7405 2405 7406 +15V5 2406 7407 I400 5400 2407 7408 5401 2408 7410 2409 7411 2410 2401 2411 100n ADDRESS A6h 2412 7405...
  • Page 35 LC6231/LC7181 6-18 1670 2717 7505 +15V5 1671 2718 7506-A E17 5502 +3V3 5500 1771 2719 7506-B E16 LCD DRIVE RED 2503 2504 2505 100n 100n 100n 1772 2726 7508-A F16 2500 2501 100n 100n 1872 2727 7508-B G17 +15V5 5503...

  • Page 36: Lcd Drive

    6-19 LC6231/LC7181 1771 +15V5 5602 1772 +3V3 2600 5600 2603 2604 2605 LCD DRIVE 100n 100n 100n 2600 2601 2601 100n 100n +15V5 2602 5603 7604 +3V3 5604 L3E01040F0A 2603 +3V3F 2608 MODE 2604 SHIFT LEVEL 100n 2609 2610 2611...
  • Page 37 LC6231/LC7181 6-20 1670 +15V5 5702 1671 +3V3 5700 2703 2704 2705 LCD DRIVE 2700 100n 100n 100n 2700 2701 2701 100n 100n +15V5 2702 5703 I701 7704 +3V3 5704 L3E01040F0A I703 +3V3F 2703 2708 MODE SHIFT LEVEL 2704 100n 2709...
  • Page 38 LC6231/LC7181 6-21 2200 F2 3207 E3 3712 D3 2201 E1 3248 E3 3713 D4 2203 E2 3249 E2 5203 D1 2212 E2 3250 E2 5205 E2 2213 E2 3255 E2 5206 F2 2214 F2 3256 E1 5207 E2 2215 F1...
  • Page 39 LC6231/LC7181 6-22 1101 A3 2705 D1 3442 E2 1200 F4 2727 E2 3443 E2 1670 E1 2728 E2 3444 F2 1671 E1 2729 E2 3447 F3 1771 C3 2730 E1 3501 C1 1772 C3 2731 E1 3502 B1 1872 B1...
  • Page 40 6-23 LC6231/LC7181 1006 E3 1020 B1 3001 A2 1001 D3 3013 B8 3018 C10 6002 B10 7004 A5 3008 B5 3012 B10 1007 E2 1021 A1 3002 A10 1002 D2 3014 B8 5000 A2 6003 A8 7005 B9 7008 C9...
  • Page 41 LC6231/LlC7181 6-24 1000 A4 2000 B3 IR-receiver board 3000 A3 3001 A3 7000 A1 1000 7000 TSOP2136 Reserved Component CL 26645004_064.eps 150502...
  • Page 42 LC6231/LC7181...

  • Page 43: Directions For Use

    7. Directions for use LC6231/LlC7181...
  • Page 44 LC6231/LC7181...
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  • Page 46 LC6231/LC7181...
  • Page 47 LC6231/LlC7181...
  • Page 48 LC6231/LC7181...
  • Page 49 LC6231/LlC7181...
  • Page 50 LC6231/LC7181...
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  • Page 52 7-10 LC6231/LC7181...
  • Page 53 LC6231/LlC7181 7-11...
  • Page 54 7-12 LC6231/LC7181...
  • Page 55 LC6231/LlC7181 7-13...
  • Page 56 7-14 LC6231/LC7181...
  • Page 57 LC6231/LlC7181 7-15...
  • Page 58 7-16 LC6231/LC7181...

  • Page 59: Optical Alignments

    8. Optical alignments LC6231/LlC7181 Corner mirror Red Put on a red picture. If dark bands are visible on the sides, loosen the two screws (A) fixing the mirror on top, and move the mirror till the dark bands are gone.
  • Page 60 LC6231/LC7181 Convergence alignment In the standard configuration the convergence cannot be adjusted. If convergence adjustment is necessary (e.g. after replacing an LCD), this can only be done after replacing the LCD fixation screws by special screws. The alignment is then done by moving the LCD panel itself around the screws.
  • Page 61 LC6231/LlC7181 Aligning the convergence With a the key (I), the 2 screws (H) can be loosened from the top. This is a critical action: the crews have to be loosed so that the LCD can be moved with some friction.
  • Page 62 3122 434 01740 CABLE RETAINER 3122 433 70620 1010 1002 PCA DRB SVGA ED2 STER 3122 438 51420 1004 PCA SSB LC6231 3122 438 51150 1002 1004 PCA SSB LC7181 3122 438 50910 1004 169 8003 1008 $ FAN ASSY S10-MAIN FAN...
  • Page 63 LC6231/LlC7181 BOTTOM ASSY 3103 437 50590 BOTTOM ASSY ML 3103 437 50910 LAMPDOOR 3103 437 50660 LAMPDOOR ML 3103 437 50830 13 $ FOOT LEG 3103 437 50680 13 $ FOOT LEG ML 3103 437 50850 14 $ FRONT FOOT 3103 434 20010 CL 26645004_076.eps...

  • Page 64: Optical Parts

    Optical Parts LC6231/LC7181 15 23 21 33 14-5 CL 26645004_078.eps 190602 Mirror A 3122 434 92690 1003 14-6 14-4 Mirror B 3122 434 92700 Mirror C 3122 434 92710 Mirror D1 3122 434 92720 Mirror D2 3122 434 92730 14-1...

  • Page 65: Parts Lists

    Parts lists LC6231/LC7181 2216 0603 50V 100NP80M 2238 586 59812 2415 0603 50V 100NP80M 2238 586 59812 Small Signal Board 2217 0603 50V 100NP80M 2238 586 59812 2416 0603 50V 100NP80M 2238 586 59812 Connectors 2218 10UF 16V 4822 124 23002...
  • Page 66 LC6231/LC7181 2852 220NF +80-20% 16V 4822 126 13879 3058 330R00 5% 0,062W 4822 051 30331 3325 RST NETW 4X47R 2350 035 10479 2854 0603 50V 100NP80M 2238 586 59812 3060 100R00 5% 0,062W 4822 051 30101 3327 RST NETW 4X47R...
  • Page 67 LC6231/LlC7181 3721 RST NETW 4X4K7 2350 035 10472 3910 22K 1% 0.063W 0603 5322 117 13022 5300 4,7UH/20%) 4822 157 10333 3727 1K50 5% 0,062W 4822 051 30152 3912 1K2 1% 1/16W 4822 117 11817 5302 BLM21A601SPT 4822 157 71206...
  • Page 68 LC6231/LC7181 5950 BLM21A601SPT 4822 157 71206 7010 74LVC126AD 9352 411 00118 Capacitors 5952 BLM21A601SPT 4822 157 71206 7014 BC857C 5322 130 42756 2100 1206 6V3 10U PM10 2020 552 96672 5954 BLM21A601SPT 4822 157 71206 7016 BC847C 5322 130 42755...
  • Page 69 LC6231/LlC7181 2527 0603 6V3 1U PM10 2020 552 96673 3210 NETW 4X4K7 PM6 2350 035 10472 3380 1R 5% 0,062W 0603 4822 117 12917 2528 0603 6V3 1U PM10 2020 552 96673 3212 NETW 4X10K 2350 035 10103 3381 1R 5% 0,062W 0603...
  • Page 70 LC6231/LC7181 3713 2K20 5% 0,062W 4822 051 30222 7213 74LVC86AD 4822 209 17463 Coils 3714 22R 5% 0,062W 4822 117 12139 7300 IC SM L3E07050K0B 9322 188 06702 5000 BLM21A601SPT 4822 157 71206 3715 1K00 5% 0,062W 4822 051 30102...

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