Canon LV-7105 Service Manual - Page 123

s Circuit Block Diagram (LV-7105U/LV-7105E) RGB H-SYNC V-SYNC COMPUTER IN D-SUB 15PIN S-VIDEO VIDEO Cr/Pr Cb/Pb IC1001 IC1002 H-SYNC V-SYNC IC5282 G-SYNC. 7 1 SW. 6 S-SW Y/C CR-SW CB-SW VIDEO Cr/Pr Cb/Pb 4 IC102118 G-SYNC 1 SEP. 21 7 IC5281 S/VIDEO-SW 3 8 12 1 5 9 S/VIDEO-SW CG-AUDIO AV-AUDIO AUDIO OUT SPEAKER CG-AUDIO-L/R AV-AUDIO-L/R BUFFER Q5001 AUDIO-L/R Q5003 IC5001 AUDIO-SW 1 10 13 11 2 15 12 14 PC/AV-SW Q5007 Q5008 BUFFER Q5002 Q5004 IC001 AUDIO AMP. MUTE 8 2 34 MUTE VOLUME RGB Y Cr/Pr Cb/Pb IC5201 PC/AV-SW 4 5 11 1 6 8 3 9 12 16 A/D CONVERTER DIGITAL RGB MATRIX IC5251 IC5252 IC5253 PC/AV-SW 7 122 15 55 IC202 | 112 DRA0-7/B0-7 DGA0-7/B0-7 | 160 1 26 | 99 22 DBA0-7/B0-7 | 19 IC6101 GRO0-7/GRE0-7 GGO0-7/GGE0-7 GBO0-7/GBE0-7 29 30 36 37 102 GVS SCL/SDA SYSTEM CONTROL & SCAN CONVERSION VIDEO S-Y S-C VHS H-SYNC V-SYNC IC1911 5 128 71 SYNC SEPARATOR IC6901 25 IC5101 72 25 | 54 25 VUVO-7 VY0-7 53 VHS 31 32 52 VVS GHS DIGITAL VIDEO DECODER IC301 A1-A18 D0-D15 IC1831 TEMP. SENSOR. PSCL PSDA IC1832 TEMP. SENSOR. POWER WARNING READY LAMP REPLACE M_SCL M_SDA IC302 5 6 MEMORY IC806 FLASH ROM IC805 RAM I/O EXPAND KEY SW 17-19 POWER LED 16 TEMP LED READY LED LAMP REP LED 15 14 IC1803 13 MUTE 12 A1-A18 D0-D15 A1-A18 D0-D15 D0-D7 LAMP REP LED I/O EXPAND FAN DRIVE-SW 19 S/VIDEO-SW PC/AV-SW 17 D7-D15 16 IC1804 KEY CONTROL POWER P-UP NORMAL P-DOWN VOLUME (+/-) P-LEFT AUTO IMAGE P-RIGHT MENU ENTER MODE I/O EXPAND FAN CONTROL1 18 FAN CONTROL2 17 IC1806 D0-D7 14-12 I/O EXPAND LAMP ON 14 AIR MOUSE CONTROL PORT IC3871 RS232C DRIVER TXD 7 10 RXD 13 12 IC3841 AIR MOUSE CONT.2 15 I 24 14 I 7 4 25 IC3861 SUB CPU TXD SEL0 12 SEL1 13 11 IC3801 AIR MOUSE CONT.1 MOUSE 5 19 I 12 RC INPUT RC SIGNAL IN 18 4 RXD TXD D7-D15 IC1807 I/O EXPAND KEY SW 1-5 TEMP WARR LAMP ERR 7 D0-D7 8 IC1808 I/O EXPAND S-SW 2 CB-SW CR-SW 3 4 IC1809 D7-D15 DRE0-7 DGE0-7 DBE0-7 D/A CONVERTER R 4 46 I 31 IC2200 43 G B 40 1 DCLK DVS DHS IC2211 IC2221 IC2231 LCD DRIVER 18 22 16 14 24 IC401 26 51 52 27-32 PSCL PSDA 16-21 IC431 DAC 1-6 DAC_ST SCLK SDATA VOL VIDEO_DAC 4 2 13 IC3321 BUFFER 16 18 7 14 AIN_CLK IC1501 TTL/PECL 1 2 4 7 5 8 14 18 19 GMCKI/GMCK RMCKI/RMCK BMCKI/BMCK HPBC UDOUT LROUT IC3331 BUFFER ENB 11 9 15 5 DWN 17 3 RGT R-SAMPLE & HOLD 47 IC501 31 46 I 17 φ6 34 35 VR502 VR503 47 31 IC1501 I φ6 17 46 35 G-SAMPLE & HOLD 47 37 IC531 31 I φ6 17 34 35 VR532 VR533 47 IC1531 31 φ6 I 17 46 35 B-SAMPLE & HOLD 37 47 IC561 31 I φ6 17 34 35 VR562 VR563 47 IC1561 31 φ6 I 17 46 35 IROMURA 65 48 43 38 IC471 3 4 PRG 3 IC3391 9 FRP 41 71 70 BUFFER STV 27 11 17 5 29 15 13 7 VCK IC861 BUFFER 11 9 DCLK 23 IC3301 46 54 DVS 5 TIMING 62 DHS CONTROLLER 6 6 14 HST 4 16 2 18 15 5 2 | 17 SDAT, S.H, SCLK 3 4 47 55 63 BHCLK GHCLK RHCLK 4 BHCLK 16 GHCLK 8 12 13 RHCLK 7 R-LCD PANEL G-LCD PANEL IC1401 PSIG 37 PSIG B-LCD PANEL 37 PSIG IC1451 PSIG WHITE UNIFOMITY CORR. RC PREAMP. A1