Pioneer VD-V7200 User Manual

RODUCT APPLICATION BULLETIN

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Bulletin # 152507

Jama Port – DVD-V7200

Overview

The Jama port is a simple and cost effective means of controlling the player with switch contacts. The Jama port
consists of eight pins on the Interface Connector (figure 1) which allows control commands to be sent to the DVD­V7200. Some of many features available through Jama Port control are:

! Title, Menu
! Up, down, left, right and enter navigation
! Chapter play (chapters one through twenty)

!

Command Stacks1 (group one through twenty-seven)

Figure 1

˝

Pin No. Terminal

1 Ground
6SW 1
7SW 2
8SW 3

9SW 4
10 SW 5
11 SW 6
12 SW 7
13 SW 8

1

For more information on Command Stacks, please see the Advanced Features manual that’s included with the

DVD-V7000

Page 1 of 5

Pioneer New Media Technologies, Inc., Engineering Support [phone]

RODUCT APPLICATION NOTE

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There are two types of circuits that may be created. The first circuit style uses simple closures offering menu, up,
down, left, right and enter navigation, (figure 2).

Figure 2

Only one contact closure may be instituted at a time. If two buttons are pressed simultaneously, the player

Note:

may lock up. Should this occur, cycle the power to restore player operation.
The second circuit uses a diode network (figure 3) and includes all functions listed on the Jama Port table.

Bulletin # 152507

Figure 3

Figure 3 is only an example of a circuit that can be created. Diodes used are 1N914 or the equivalent. With

Note:

a diode matrix, it is possible to create a maximum of 72 functions.

Page 2 of 5

Pioneer New Media Technologies, Inc., Engineering Support [phone]