myoldmac.net - 68k Macintosh and RGB to VGA Display Adapter

RGB to VGA Display - DIP Switch Settings

Connectors:

DB15 Male
HD15 Female

DB-15 Male / HD-15 Female, Molded, with 10 position Dip Switch. The dip switches adjust the signal between a Macintosh Computer and a VGA Style Monitor. Supports 6 kinds of different signal modes & resolutions.

Monitor

Resolution

MODE 1

MODE 2

MODE 3

MODE 4

MODE 5

MODE 6

12 RGB

512x384

1345

13456

1347

1346

13467

134

13 RGB

640x480 66Hz

145

1456

147

146

1467

PORTRAIT

640x870

2345

23456

2347

2346

23467

234

VGA/SVGA

640x480/800x600 60Hz

235

2356

237

236

2367

15" Tilt

245

2456

247

246

2467

16 COLOR

832x624

135

1356

137

136

1367

19 COLOR

1024x768

125

1256

127

126

1267

21 COLOR

1152x870

12345

123456

12347

12346

123467

1234

2 PAGE MONO

1152x870

345

3456

347

346

3467

*NTSC

1245

12456

1247

1246

12467

124

*NTSC/PAL

1235

12356

1237

1236

12367

123

HI-RES(12-14)

145

1456

147

146

1467

MULTIPLE SCAN 14

14589

145689

14789

14689

146789

1489

MULTIPLE SCAN 16

1458

14568

1478

1468

14678

148

MULTIPLE SCAN 21

1459

14569

1479

1469

14679

149

MODE 1

1345

Means:

SW1	SW2	SW3	SW4	SW5	SW6	SW7	SW8	SW9	SW10
ON	OFF	ON	ON	ON	OFF	OFF	OFF	OFF	OFF

MODE 1 is COMPOSITE SYNC(1)

SYNC signal (DB-15M pin 3) connected to HD-15F pin 13

MODE 2 is COMPOSITE SYNC(2)

DB-15M pin 3 & 15 connected to HD-15F pin 13

MODE 3 is SYNC ON V

DB-15M pin 12 connected to HD-15F pin 14

MODE 4 is SYNC ON H

DB-15M pin 15 connected to HD-15F pin 13

MODE 5 is SEPARATE SYNC

DB-15M pin 12 connected to HD-15F pin 14.
DB-15M pin 15 connected to HD-15F pin 13

MODE 6 is SYNC ON GREEN

SYNC on GREEN

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