ocr: CHANNEL 68 DECODE R BLOCK DIAGRAM UHF MAST-MOUNT VIDEO TAP AMPLIFIER AMP 75A 733 VHF AUDIO TV UHF RECEIVER VARACTOt LTUNER VIDED AMP DETECTED AUDIO 733 E our AGC FALL 1980 NO. 64 74221 GEN PULSE 311 SYNC MODULE PIA 15.738 FILTER PEAK/NOTEH KHE 741 PRE AMP NOTCH Pre-Amp Module PIN - NULL CIRCUIT : -V >Jok PI5 FREQUENCT HIGH DOUBLER PASS IOK LFILTER 300 mV K HA IUATO PRODUCT (5 300 10 mV 500 mv) 741 iouf OUTPUr DETECTOR L +v Video Amp LOW AUDIO Oscillations appear at higher gains of AGC, PASS FILTER OUT the (around loading -2 volts with to this the circuiti gate). Try to control TtA GV +6V Low P ...
