AM501 Monitor Service Guide
Page 31
.... It can be set by IIC. 27 6.0 OPERATION THEOREM 6.1 H & V sync. U401 TDA9111 also build-in a vertical driver, a saw -tooth current to synchronize the vertical oscillator. 6.2.2 Vertical oscillator and driver circuit The vertical oscillator is at pin 20,21,22 of this block is U2, it's function is the output...be set by IIC. To get the polarity fixed V-out, H-out. 6.2 Vertical deflection The vertical deflection circuit including synchronizer, vertical oscillator, vertical driver, vertical output amplifier. 6.2.1 Vertical synchronizer The vertica1 sync. To move display up or down.
.... It can be set by IIC. 27 6.0 OPERATION THEOREM 6.1 H & V sync. U401 TDA9111 also build-in a vertical driver, a saw -tooth current to synchronize the vertical oscillator. 6.2.2 Vertical oscillator and driver circuit The vertical oscillator is at pin 20,21,22 of this block is U2, it's function is the output...be set by IIC. To get the polarity fixed V-out, H-out. 6.2 Vertical deflection The vertical deflection circuit including synchronizer, vertical oscillator, vertical driver, vertical output amplifier. 6.2.1 Vertical synchronizer The vertica1 sync. To move display up or down.
AM501 Monitor Service Guide
Page 32
... min oscillator frequency. HOR. 6.3 Horizontal deflection circuit The horizontal deflection circuit is obtained by IIC. 6.3.2 Horizontal driver and output circuit The driver waveform come out at pin 26 of U401, to the driver transistor (Q506), the driver transformer (T501) supply the drive current, turn on and turn off the HOR. output transistor (Q801) alternately...
... min oscillator frequency. HOR. 6.3 Horizontal deflection circuit The horizontal deflection circuit is obtained by IIC. 6.3.2 Horizontal driver and output circuit The driver waveform come out at pin 26 of U401, to the driver transistor (Q506), the driver transformer (T501) supply the drive current, turn on and turn off the HOR. output transistor (Q801) alternately...
AM501 Monitor Service Guide
Page 33
... mode and 12 user's mode can be memorized. 29 The voltage to be detected is overhigh, the transistor Q507 will turn on , then the horizontal driver signal will be compensated. 6.6 Video amplifier circuit The video signal input via the coaxial cable, and AC couple to the video PRE. MICRO-PROCESSOR also...
... mode and 12 user's mode can be memorized. 29 The voltage to be detected is overhigh, the transistor Q507 will turn on , then the horizontal driver signal will be compensated. 6.6 Video amplifier circuit The video signal input via the coaxial cable, and AC couple to the video PRE. MICRO-PROCESSOR also...
AM501 Monitor Service Guide
Page 35
... power LED will flash naturally in this time. 6.8.4 Boost Mode Power Conversion CKT (The B+ Generator) It consists of boost power stage, output rectifier and filter, driver CKT and PWM signal comes from the H.V. b.
... power LED will flash naturally in this time. 6.8.4 Boost Mode Power Conversion CKT (The B+ Generator) It consists of boost power stage, output rectifier and filter, driver CKT and PWM signal comes from the H.V. b.