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# JUKO LABORATORIES, LTD.
G7-A
Category Video/Multi I/O
Video Types Supported CGA/Monochrome
Video Processor Unidentified
Highest Resolution Supported 640 x 400
Data Bus Type 8-bit ISA
Memory Type N/A
Maximum Onboard Memory N/A
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| 15-pin analog | CN1 | 6-pin light pen | CN5 |
| video port | | connector | |
|-------------------+----------+------------------+----------|
| Composite video | CN2 | 16-pin game/MIDI | CN7 |
| jack | | port | |
|-------------------+----------+------------------+----------|
| 9-pin mouse port | CN3 | 26-pin parallel | CN8 |
| | | port interface | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMPOSITE DISPLAY CONFIGURATION |
|------------------------------------------------------------|
| Setting | J1 |
|----------------------------+-------------------------------|
| » | Color | Pins 1 & 2 closed |
|----+-----------------------+-------------------------------|
| | Mono | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MOUSE INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | J2 | J6/SW2 | J6/SW3 | J6/SW4 | J6/SW5 |
|-------+----------+----------+----------+---------+---------|
| » | 2 | Pins 1 & | Pins 1 & | Pins 2 & | Pins 2 | Pins 2 |
| | | 2 closed | 2 closed | 3 closed | & 3 | & 3 |
| | | | | | closed | closed |
|---+---+----------+----------+----------+---------+---------|
| | 3 | Pins 3 & | Pins 2 & | Pins 1 & | Pins 2 | Pins 2 |
| | | 4 closed | 3 closed | 2 closed | & 3 | & 3 |
| | | | | | closed | closed |
|---+---+----------+----------+----------+---------+---------|
| | 4 | Pins 5 & | Pins 2 & | Pins 2 & | Pins 1 | Pins 2 |
| | | 6 closed | 3 closed | 3 closed | & 2 | & 3 |
| | | | | | closed | closed |
|---+---+----------+----------+----------+---------+---------|
| | 5 | Pins 7 & | Pins 2 & | Pins 2 & | Pins 2 | Pins 1 |
| | | 8 closed | 3 closed | 3 closed | & 3 | & 2 |
| | | | | | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COLOR FREQUENCY CONFIGURATION |
|------------------------------------------------------------|
| Setting | J3 |
|--------------------------------------+---------------------|
| » | Color display 14.31818MHz clock | Pins 1 & 2 closed |
|---+----------------------------------+---------------------|
| | Monochrome 16MHz clock | Pins 3 & 4 closed |
|---+----------------------------------+---------------------|
| | 640 x 400 display 23.4 MHz clock | Pins 5 & 6 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT CONFIGURATION |
|------------------------------------------------------------|
| Setting | J4/SW1 |
|----------------------------+-------------------------------|
| » | Enabled | Pins 1 & 2 closed |
|---+------------------------+-------------------------------|
| | Disabled | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| GAME PORT CONFIGURATION |
|------------------------------------------------------------|
| Setting | J4/SW2 |
|----------------------------+-------------------------------|
| » | Enabled | Pins 1 & 2 closed |
|---+------------------------+-------------------------------|
| | Disabled | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VERTICAL SYNCHRONIZE PULSE CONFIGURATION |
|------------------------------------------------------------|
| Setting | J5/SW1 |
|-----------------------------+------------------------------|
| » | Positive | Pins 1 & 2 closed |
|------+----------------------+------------------------------|
| | Negative | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| HORIZONTAL SYNCHRONIZE PULSE CONFIGURATION |
|------------------------------------------------------------|
| Setting | J5/SW2 |
|-----------------------------+------------------------------|
| » | Positive | Pins 1 & 2 closed |
|-------+---------------------+------------------------------|
| | Negative | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DISPLAY MODE SELECTION |
|------------------------------------------------------------|
| Mode | J5/SW3 | J5/SW4 | J5/SW5 |
|------------------------+-----------+-----------+-----------|
| » | Color/graphics | Pins 1 & | Pins 2 & | Pins 1 & |
| | display | 2 closed | 3 closed | 2 closed |
|---+--------------------+-----------+-----------+-----------|
| | Composite color | Pins 2 & | Pins 2 & | Pins 1 & |
| | graphics display | 3 closed | 3 closed | 2 closed |
|---+--------------------+-----------+-----------+-----------|
| | Composite | Pins 2 & | Pins 1 & | Pins 2 & |
| | monochrome | 3 closed | 2 closed | 3 closed |
| | graphics display | | | |
|---+--------------------+-----------+-----------+-----------|
| | 640 x 400 color | Pins 1 & | Pins 1 & | Pins 2 & |
| | graphics display | 2 closed | 2 closed | 3 closed |
|---+--------------------+-----------+-----------+-----------|
| | Monochrome | Pins 1 & | Pins 1 & | Pins 1 & |
| | graphics display | 2 closed | 2 closed | 2 closed |
|---+--------------------+-----------+-----------+-----------|
| | Disabled all | Pins 2 & | Pins 2 & | Pins 2 & |
| | display modes | 3 closed | 3 closed | 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MOUSE PORT CONFIGURATION |
|------------------------------------------------------------|
| Setting | J6/SW1 |
|----------------------------+-------------------------------|
| » | Enabled | Pins 1 & 2 closed |
|---+------------------------+-------------------------------|
| | Disabled | Pins 2 & 3 closed |
+------------------------------------------------------------+