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English text [image by itself: RGB.txt]
> How did you do it? I mean, connect your Amiga 1200 to your Sony
> KV25-XBR? Nobody I've spoken with at any computer store or Sony dealer has
> any idea where to get a cable to connect a computer to the 34-pin RGB port
> on my Sony. I even called Sony customer service, and those folks are real
> polite but even THEY don't have a clue.
I went to a Sony Service Center back in 1985 and purchased the full manual
for my TV, one that had schematics. (I've misplaced it, so I can't tell
you the part number.) There was a Sony "computer cable" for RGB connector,
but it listed for more than $30, and there was no guarentee that it had
the connectors I needed. So I built my own.
I purchased a standard 34-pin connector with flat ribbon cable from a
computer store, and wired up a box that has an Amiga-compatible 9-pin video
connector, 6 RCA phono jacks (red green blue sync left right), and 2
switches. One switch selects sync-on-green versus separate sync, the other
enables TV audio while in RGB mode.
9-pin Video connector (used by A2002 and A1084 monitors, AmiGen genlock):
01 = Sync ground 06 = no connection
02 = RGB ground 07 = combined Sync
03 = Red 08 = no connection
04 = Green 09 = no connection
05 = Blue
07+01 go to a black RCA jack labeled "Sync"
03+02 go to a red RCA jack labeled "Red"
04+02 go to a green RCA jack labeled "Green"
05+02 go to a blue RCA jack labeled "Blue"
On a 23-pin Video connector, 03=Red, 04=Green, 05=Blue, 10=Csync, and 16-20
are all ground. Do not use 11=Hsync or 12=Vsync in this case. (On the
9-pin male to 9-pin female cable I was using, I took some wire cutters to
pins 06, 08 and 09, since their signals confused my A2002 monitor.)
34-pin RGB connector:
01 = +5V 18 = no connection
02 = +5V 19 = no connection
03 = ground 20 = Audio, Right
04 = ground 21 = Mode Switch (I think this enables pin 23)
05 = Remote Ctl gnd 22 = no connection
06 = Composite gnd 23 = Video (composite)
07 = Audio ground 24 = Audio, Left
08 = Red ground 25 = Red
09 = Green ground 26 = Green
10 = Blue ground 27 = Blue
11 = Ground 28 = no connection
12 = Blank ground 29 = Blanking
13 = Hsync ground 30 = H-sync
14 = no connection 31 = V-sync
15 = Vsync ground 32 = no connection
16 = Ground 33 = RGB/N (I think this forces RGB mode)
17 = no connection 34 = Audio Select (+5v enables audio)
01+34 go to a SPST switch (to enable audio while in RGB mode)
20+03 go to a red RCA jack labeled "Right"
24+07 go to a white RCA jack labeled "Left"
25+08, 26+09, 27+10 go to the Red, Green, Blue jacks (and Amiga connector)
13 goes to the Sync jack ground, 30 goes to a SPDT switch, which connects
it to either the Sync jack (normal) or the Green jack (sync-on-green)
The phono jacks are useable by a "GIGI" (DEC VK100 terminal with BASIC).
The 9-pin connector is useable by an Amiga 23-pin to 9-pin cable, or
by the 9-pin output of an AmiGen genlock.
See also the "Sci.Electronics.Repair FAQ on Pinouts"
for "Sony RGB Multi Input (found on KV-25XBR TV's).
Joe Smith <firstname.lastname@example.org> or <email@example.com> work phone: (408)533-6220
CA license plate: "POPJ P," 36-bits forever! (2 Tymshare PDP-10s still going!)
Humorous disclaimer: "My Amiga 3000 speaks for me." http://www.inwap.com/
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