Circuit Description; Video/Audio Signal Processing Board; Signal Generation Board - Sony VPL-FH65 Service Manual

1-12. Circuit Description

1-12-1. Video/Audio Signal Processing Board

Q board
The Q board mounts all external input/output connectors.
The mounted connectors are as follows:
. RS-232C input
. VGA (D-sub 15-pin) input
. VGA (D-sub 15-pin) output
. DVI input
. DVI output
. Control S input
. LAN (RJ-45) input
. AUDIO IN/OUT
. Video (BNC) input
. HDMI input
. HDBase-T (RJ-45) input
. USB-A/B (for upgrading firmware)
The Q board also mounts an HDBaseT signal processing circuit, an HDMI/DVI equalizer, switches, and
an audio signal processing circuit.
MX board
The MX board is a network microcomputer board.
The MX board performs the communication between microcomputers through Ether MAC and USB.
C board
The C board mounts a main CPU and sub-CPU. It controls the whole system and processes video and
audio signals.
The main functions of the C board are as follows:
. Super-resolution signal processing, and image processing such as edge blending or keystone
. Signal processing of a signal generator circuit for panel driving, protector judgment processing, or
solenoid (auto filter cleaning)
. Lens shift, zoom, and focus driving

1-12-2. Signal Generation Board

H board
The H board mounts each button on the control panel of this unit.
1-55 (E)
VPL-FH60