Analog Board Functional Test Via Host Computer; Purpose; Required Tools And Equipment; Test Procedure - Polaroid 8035 Repair Manual

8K Series ProPalette Repair Manual

Analog Board Functional Test via Host Computer

Purpose

The ProPalette Analog board can be exercised with static tests to verify it's functionality.
MEDTEST.HEX is a program that is initially downloaded via the serial port, and is then
run from the ROM Monitor mode. There are six tests defined in it's main menu.
Note: The test software must be in synchronization with the
firmware version or unexpected errors may occur. The test
software file creation date should agree with the firmware
version date.

Required Tools and Equipment

In addition to the Upload a HEX File procedure, the diagnostic file MEDTST.HEX is
required. A -0.8 volt dc source for autoluma test is also needed.

Test Procedure

1. Upload and start the diagnostic file MEDTST.HEX according to "Uploading
and Running a Hex File" on page 89.
The main menu options appear (Figure 4-15).
2. Enter the command for the desired test from the list below. Refer to the
following sections for more detailed information about each test.
Test
Horizontal channel
Video channel
Autoluma
Vertical channel
Luma trimdac
Dynamic focus
Figure 4-15. MEDTST.HEX Main Menu options
Troubleshooting and Diagnostics
Command
ht
vdt
at
vt
lt
df
96