VGA, DVI, S-Video and other video connectors pinouts  > Apple pinouts
Pin Name Description
1 TEXT Video text signal from TMG; set to inverse of GR, except in double high-resolution mode.
2 14M 14M master timing signal from the system oscillator.
3 SYNC* Displays horizontal and vertical synchronization signal from IOU pin 39.
4 SEGB Displays vertical counter bit from IOU pin 4; in text mode, indicates second low-order vertical counter; in graphics mode, indicates low-resolution.
5 1VSOUND One-volt sound signal from pin 5 of the audio hybrid circuit (AUD).
6 LDPS* Video shift-register load enable from pin 12 of TMG.
7 WNDW* Active area display blanking; includes both horizontal and vertical blanking.
8 +12V Regulated +12 volts DC; can drive 300mA.
9 PRAS* RAM row-address strobe from TMG pin 19.
10 GR Graphics mode enable from IOU pin 2.
11 SEROUT* Serialized character generator output from pin 1 of the 74LS166 shift register.
12 NTSC Composite NTSC video signal from VID hybrid chip.
13 GND Ground reference and supply.
14 VIDD7 From 74LS374 video latch; causes half-dot shift high.
15 CREF Color reference signal from TMG pin 3; 3.58 MHz.

Note:
The signals at the DB-15 on the Apple IIc are not the same as those at the DB-15 end of the Apple III, Apple IIGS, and Macintosh II. Do not attempt to plug a cable intended for one into the other.

Note:
Several of these signals, such as the 14 MHz, must be buffered within about 4 inches of the back panel connector--preferably inside a container directly connected to the back panel.

There are no any reports for this pinout! You may rate this document by clicking the button below.

Is this pinout
Source(s) of this and additional information: Apple Tech Info Library 1419: Apple IIc, External Pinouts at Apple TIL homepage, from Hardware Book
This page contain parts under Copyright © 2000-2015 by pinouts.ru team.
No portion of this webpage may be reproduced in any form without providing visible HTML link to Old.Pinouts.ru . Webmaster permission required in any other cases.
Efforts have been made to ensure this page is correct, but it is the responsibility of the user to verify the data is correct for their application.