Panasonic 34-pin control interface pinout?

[Doug from MA]

Greets all...

After a fairly extensive google for it, I arrive here with hat in hand:

Would someone out there have the pinout for a Panasonic 34-pin control
interface? This is found on the AG-71xx series of Professional Series VTRs
and VTPs.

I am interested in building a system that allows me to control a multiple
of VTRS (8 or more) using standard parallel or serial ports; any assistance
that folks could provide would be most appreciated.

Many thanks in advance...

 

[Uns Lider]

In article <Xns93BCBD2E65668TVDoug081969@199.45.49.11>, Doug from MA wrote:

Would someone out there have the pinout for a Panasonic 34-pin control
interface? This is found on the AG-71xx series of Professional Series VTRs
and VTPs.

Here is some info on the interface as used on the 68xx series. I think the
interface on the 71xx is the same. Not all VTRs implement all functions. For
full information, buy the service manual for your model. In the US it can be
ordered through the Panasonic parts department at (800)833-9626.

I take no responsibility for the accuracy of the below information!

1 in rec switch (drive low to enter record mode)
2 in play switch
3 in ff switch
4 in rew switch
5 in stop switch
6 in audio dub switch
7 in pause switch
8 out cassette in
9 in audio dub switch / cut in switch
10 in ff, rew slow down
11 out servo lock
12 gnd
13 in frame adv switch
14 out reverse count
15 n/c
16 in edit switch
17 in reverse
18 out control pulse (oc w/5.6k pullup to 12v)
19 in remote(19)
20 out start mark (oc w/10k pullup to 12v)
21 in eject switch
22 n/c
23 out rec hold
24 out play hold
25 out ff hold
26 out rew hold
27 n/c
28 out audio dub hold
29 out pause hold
30 in remote(30)
31 out audio dub hold / cut in hold
32 n/c
33 in remote(33)
34 out +12V (40mA max)

Except as otherwise stated, the output pins are open-collector and can sink
a maximum of 16mA. Your controller will need pullup resistors on these pins.
They can tolerate being pulled up as high as 30 volts.

The input pins are internally pulled up to 5 volts by the VTR through a 10K
resistor. Your controller can use open-collector or TTL outputs. A logic low
must be below 0.8V and a high can be from 2.4 to 5V.

Pulses on the input pins should be a minimum of 100ms. After the end of each
pulse, all inputs should go inactive (high) for at least 100ms.

Pins 17, 19, 30 and 33 form a 4-bit word that controls trick-play (forward
and reverse slow and fast motion) on VTRs that support it. Pin 17 is set
low for reverse and high for forward. Pins 19, 30 and 33 are set as follows
for the desired speed:

100 1/25x (forward only)
000 1/10x (forward only)
101 1/5x (forward only)
001 1/2x
111 1x
011 2x
110 6x
010 10x

Hope this helps.

-- uns