MT700
Service Manual
22
4.1.5.4. Voltage Feedback
The seconddary referenced error amplifier control system is implemented with the
TL431. The device consists if an accurate 2.5V reference, error amplifer a, and
driver. The output voltage is sensed , diveded by R5 and R6 ,and applied to the
inverting of the error amplifier is internally connected to the reference voltage . The
frequency response of the error amplifier is determinde by the compensation network
cinsisting of R3 an C1, and the high frequency gain setting R4. The optocouple diode
current is limited by R7. the optocoupler drives the error signal into the feedback pin
of PWM IC.
Summary of Contents for TDP-MT700
Page 1: ...SERVICE MANUAL FILE NO 330 200503 DLP PROJECTOR TDP MT700 Document Created in Japan May 2005 ...
Page 28: ...MT700 Service Manual 27 5 2 3 The normal point Lower Higher Normal ...
Page 31: ...MT700 Service Manual 30 ...
Page 41: ...MT700 Service Manual 40 Appendix A Exploded View 1 The appearance of projector ...
Page 46: ...MT700 Service Manual 45 7 Packing Materials and Accessory ...
Page 49: ...T O S H I B A C O R P O R A T I O N 1 1 SHIBAURA 1 CHOME MINATO KU TOKYO 105 8001 JAPAN ...
