Pioneer PRV-LX1 Panduan Pelatihan - Halaman 7

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Block Diagram Overview

The main circuit board assembly in this device is a very high quality

Pentium based personal computer main board. It interfaces directly

with the front panel control by an RS232 connection on COM 2. In

addition it has front and rear USB ports, a RS232 connection for a

UPS, 3 PCI slots (2 used), an Ethernet connection and VGA output.

Main system processor (Intel Celeron 2 GHz) with 256 Mb ram.

The ATX power assembly is similar to a home or office PC supply. It

provides +12, -12, +5, -5 and +3.3 voltage supplies to the PWRB

assembly.

This main power supply assembly provides DC supply to all circuit

boards and drives 3 of the 5 fans used in this product.

This assembly contains the RS422 interface and output RS422

connector. It also interfaces the external sync input to the DECB

board and the LTC (linear time code) to the PCIB board.

The RS422 input connector assembly provides input to the 422 driver

IC located on the JKDB board.

Headphone output volume and driver assembly. Located on the front

panel.

Front panel assembly. This board includes the florescent display

driver and IR remote control decoder. This board along with its main

CPU communicate directly to the PC motherboard through the RS232

Com 2 port.

(PC Mother Board)

(ATX Power)

(PWRB)

(JKDB)

(422IB)

(HPVB)

(FLKB)