Technical
information & support
Here
you will find information such as connector pin-outs, syncronization tips,
DIP switch settings, and more.
Diagram shown as if looking at the PPG back panel |
| Cassette
and Rhythm connector pin-outs |
| CASSETTE
PORT |
RHYTHM
PORT |
| 1-
ground |
1-
start/stop |
| 2-
from cassette machine |
2-
ground |
| 3-
to cassette machine |
3-
internal clock output |
| 4-
not used |
4-
not used |
| 5-
not used |
5-
external clock input |
The following
lists show various applications of syncronization with the Rhythm port
and DIP swith blocks. (see below)
External
device as a slave, PPG as master clock:
- 1. Connect pin
3 to the external device's clock input.
2. Connect
pin 1 to the start/stop footswitch input on the external device if
there is one.
3. Set the clock rate on the PPG using the switch blocks (see below)
to whatever rate the external device needs.
External
device as master, PPG as slave:
- 1. Connect pin
5 to the external device's clock output. (Pin 5 needs to see a 1-volt
rising-edge pulse.)
2. Set the
clock rate of the PPG to the appropriate value, depending on what
the external device is sending.
To
record a sync-to-tape tone from the PPG:
- 1. Connect the
clock out (pin 3) to an input on your recording console.
2. Set the
input level on the board to +2VU.
3. Set the
PPG DIP switches as follows: 8-switch block- 1 & 3 down, 4-switch
block- 1 & 2 down.
This will produce a 192PPQ tone.
4. Record
the tone to tape.
5. Enter
a 1 next to RUN in the sequencer display to run the sequencer at the
desired tempo.
6. Stop
the tape when finished.
To
sync the PPG from above tone:
- 1. Connect the
device the sync-tone is recorded on to a console which can raise the
output signal to +5VU.
2. Connect
this boosted signal to the clock in (pin 5) on the PPG.
3. Set the
PPG DIP switches as follows: 4-switch block- 1 & 4 down, 8-switch
block- when syncing from tape, the pulses sent from the 8-switch block
can be used to drive other devices that are connected to the PPG's
clock output. To do this either switch 1 or 2 (but not both) should
be down. The other switch (and only one other can be down) used will
depend on how many pulses per quater note the external device needs
to see at it's clock input.
5. Enter
a 1 next to RUN in the sequencer display and start the playback of
the sync-tone. To get the most accurate results, make sure to start
the sequencer from the beginning of the sync-tone.
| Waveterm
connector pin-outs |
| ASCII
PORT |
PRINTER
PORT |
| 1-
+5 volts |
1- +5 volts |
| 2-
Data 7 |
2- Data 7 |
| 3-
Data 5 |
3- Data 5 |
| 4-
Data 3 |
4- Data 3 |
| 5-
Data 1 |
5- Data 1 |
| 6-
not used |
6- ground |
| 7-
ground |
7- strobe |
| 8-
Data 6 |
8- Data 6 |
| 9-
Data 4 |
9- Data 4 |
| 10-
Data 2 |
10- Data 2 |
| 11-
Data 0 |
11- Data 0 |
| 12-
strobe |
12- ground |
| 13-
+12 volts |
13- Busy |
| 14-
not used |
14- not used |
Also check
out the Waveterm Disk Library, or click here
for some really fascinating and unusual Waveterm information.
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