Compaq CRT Monitor s7500 Service Manual - Page 7

< OSD Control > BLOCK DIAGRAM Dynamic Focus Static Focus G1 Screen(G2) -7- MENU + CONTRAST BRIGHTNESS H POSITION POWER H-Sync Sig V-Sync Sig Signal Cable R G I2C DATA(SDA) B I2C CLOCK(SCL) VIDEO PRE-AMP (IC302) LM1269 80V H.V Heater ( 6.3V ) VIDEO MAIN AMP (IC303) LM2467 DY CDT H SIZE V POSITION V SIZE SPCC TRAPEZOID PIN BALANCE MICOM (IC401) SCL / SDA 5V H/V Sync, PWM Control OSD IC 5V (IC301) 5V I2C NT6872 R/G/B I2C Drive/Contrast Cut-Off 15V CUT OFF IC (IC304) LM2480 PARALLELOGRAM ROTATION 15V DEGAUSS COLOR TEMPERADURE FACTORY RECALL EXIT E2PROM I2C X-RAY 15V Protection Circuit Vertical Blanking, Brightness Control COIL DEGAUSSING TILT 6.3V TILT Control Circuit (IC402) 15V H/V Sync Processor 15V ( IC701 ) Vout 1 I2C TDA4857 Vout 2 V-OUT ( IC601) 40V - 160V Degaussing Circuit 15V H/V Sync 80V TDA4866 FBT ( T701 ) COIL 50V H-OUT SMPS TRANS 15V H-DRV ( Q706) B+ 15V Line Filter (T901) 6.3V H-Linearity Correction 400V Dynamic Auto POWER INPUT SMPS CONTROL (IC901) DPM CONTROL CIRCUIT Voltage Regulating Circuit 5V B-DRV DC/DC Converter 50V STEP UP Focus Circuit Beam Limit 100~240VAC (50/60Hz) D/D Feed Back