HP Portable 386 Compaq Portable 386 Personal Computer Maintenance and Service - Page 155

Configuration Switch Bank SW3 is found on the COMPAQ Enhanced Color Graphics

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COMPAQ Dual Mode 80 x 25 OFF ON OFF ON COMPAQ Monitor (720 x 350 Video resolution) Display Controller or Color Graphics Adapter 80 x 25 COMPAQ Dual Mode 80 x 25 ON ON OFF ON COMPAQ Monitor (720 x 350 Video resolution Display Controller or Color Graphics Adapter 40 x 25 Configuration Switch Bank SW2 The monitor type used with the COMPAQ Enhanced Color Graphics Board determines the settings for configuration switch bank SW2. Configuration switch bank SW2 is located at the top of the board, near the board slot bracket, as shown in Figure 9-2 or 9-3. Table 9-12 shows the correct settings for configuration switch bank SW2. Table 9-12. Configuration Switch Bank SW2 Settings SW2 Switches Monitor Type 1 2 3 4 5 6 COMPAQ Color Monitor or OFF OFF ON ON OFF ON Compatible Enhanced Color Monitor RGB Color Monitor ON OFF ON ON OFF ON Configuration Switch Bank SW3 Configuration Switch Bank SW3 is found on the COMPAQ Enhanced Color Graphics Board (Assy No. 000410 only). If it is installed, all switch settings are OFF. Jumper P1 The type of external monitor used with the COMPAQ Enhanced Color Graphics Board determines the setting for Jumper P1. The location of Jumper P1 is shown in both Figures 9-2 and 9-3. Jumper P1 is preconfigured for the COMPAQ Color Monitor or a compatible enhanced color monitor. Table 9-13 shows the correct settings for Jumper P1. If you need to reset the jumper, remove it from its current position and press it into place on the correct pins.

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------------------------------------------------------------------------------
COMPAQ Dual Mode
80 x 25
OFF
ON
OFF
ON
COMPAQ
Monitor
(720 x 350
Video
resolution)
Display
Controller
or Color
Graphics
Adapter
80 x 25
------------------------------------------------------------------------------
COMPAQ Dual Mode
80 x 25
ON
ON
OFF
ON
COMPAQ
Monitor
(720 x 350
Video
resolution
Display
Controller
or Color
Graphics
Adapter
40 x 25
==============================================================================
Configuration Switch Bank SW2
The monitor type used with the COMPAQ Enhanced Color Graphics Board determines
the settings for configuration switch bank SW2.
Configuration switch bank SW2 is located at the top of the board, near the
board slot bracket, as shown in Figure 9-2 or 9-3. Table 9-12 shows the
correct settings for configuration switch bank SW2.
Table 9-12. Configuration Switch Bank SW2 Settings
==============================================================================
SW2 Switches
Monitor Type
1
2
3
4
5
6
------------------------------------------------------------------------------
COMPAQ Color Monitor or
OFF
OFF
ON
ON
OFF
ON
Compatible Enhanced Color Monitor
RGB Color Monitor
ON
OFF
ON
ON
OFF
ON
==============================================================================
Configuration Switch Bank SW3
Configuration Switch Bank SW3 is found on the COMPAQ Enhanced Color Graphics
Board (Assy No. 000410 only). If it is installed, all switch settings are
OFF.
Jumper P1
The type of external monitor used with the COMPAQ Enhanced Color Graphics
Board determines the setting for Jumper P1. The location of Jumper P1 is
shown in both Figures 9-2 and 9-3.
Jumper P1 is preconfigured for the COMPAQ Color Monitor or a compatible
enhanced color monitor. Table 9-13 shows the correct settings for Jumper P1.
If you need to reset the jumper, remove it from its current position and press
it into place on the correct pins.