Pioneer PRV-LX1 User manual

All manuals and user guides at all-guides.com
all-guides.com

All manuals and user guides at all-guides.com

Table Of Contents
Overall block diagram………………………………………..3~4
Block diagram overview……………………………………..5~6
Disassembly instructions……………………………………7~17
Service mode………………………………………………….18~21
Viewing log files……………………………………………....22~23
Status LED’s……………………………………………..…….24
Troubleshooting…………………………………………..…..25~28
Block diagram JKIB, JKDB, JKOB, HPVB & 422 IB…….29
Block diagram DECB assembly…………………………….30
Block diagram PCIB assembly………………………….…..31
Block diagram AVIB assembly……………………………...32~33
Block diagram PWRB, FLKB, DRV1B, DRV2B & USB…..34
Block diagram PWRB assembly………………………….…35
Upgrade Instructions………………………………………….36
All manuals and user guides at all-guides.com

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All manuals and user guides at all-guides.com

Block Diagram Overview
(JKIB Assembly)
All inputs Video and Audio (Composite, Component Beta or SMPTE,
S-Video, DV, Balanced and Unbalanced Audio) enter and pass
though the JKIB assembly and enter the AVIB assembly. If using the
composite input in through mode the unprocessed audio and video
pass back directly to the JKOB output assembly for monitor viewing.
(AVIB)
Video and Audio signals entering the AVIB assembly are subject to
analog to digital conversion, time based correction and digital noise
reduction will be added if selected by the user. On this assembly the
signals next are MPEG encoded and sent out to the PCIB assembly.
(PCIB)
The two main functions of the PCIB assembly are.
1. RS422 control interface.
2. PCI interface for the MPEG encoded signals.
Output signals from this board enter the PC Mother board (PCI slot 3)
(DECB)
The DECB assembly receives its input from the PC Mother board
(PCI slot 2) into its PCI interface conversion IC. After conversion back
to a MPEG stream the signals pass through the MPEG decoder and
digital to analog converters for both audio and video. At this point the
analog video and audio output to the JKIB assembly.
(JKOB)
The JKOB or jack panel output board receives input audio and video
signals from the JKIB assembly. In turn it outputs directly to the back
panel.
All manuals and user guides at all-guides.com
all-guides.com

Block Diagram Overview
(PC Mother Board)
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.
(ATX Power)
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.
(PWRB)
This main power supply assembly provides DC supply to all circuit
boards and drives 3 of the 5 fans used in this product.
(JKDB)
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.
(422IB)
The RS422 input connector assembly provides input to the 422 driver
IC located on the JKDB board.
(HPVB)
Headphone output volume and driver assembly. Located on the front
panel.
(FLKB)
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.
All manuals and user guides at all-guides.com

PRV-LX1 Disassembly
1. Top cover and side panels
1. Remove seven screws and lift off the top cover.
2. Remove eight screws for the L and R side covers.
2. Front Panel
1. Remove the front volume knob.
2. Remove the Filter covers and Air filters.
3. Remove two screws.
4. Remove three screws
5. Remove Front Panel Unit.
All manuals and user guides at all-guides.com

Front & Rear Bridges must be removed in order to access drives and board
assemblies.
1. Remove 12 screws for the front & 8 screws for the rear bridge.
2. Remove bridges.
All manuals and user guides at all-guides.com

3. Drive Assy LX1
1. Disconnect two connectors.
2. Remove four screws and DVDR Drive Assembly.
All manuals and user guides at all-guides.com