Retronics Pokey MAX User manual

Pokey
MAX
®
USER GUIDE
v.1.0
© 2020 Mark Watson, Retronics

1. INSTALLATION
PokeyMAX is an ESD (Electrostatic Sensitive Device), therefore it must be stored and installed with
high caution. ese devices are packed in antistatic box to prevent damage. Take the following
precautions to prevent damage to these devices from static electricity discharge:
ank you for purchasing PokeyMAX device! It is a full 100% compatible replacement for
POKEY chip by Atari, used in many models of 8-bit Atari computers and arcade machines. It is
available in various versions, described in next sections of this manual. All of them have implemented
all functions of Pokey chip, i.e. Audio, Keyboard, SIO, Paddles.
PokeyMAX must be installed in place where regular Pokey chip is. Please localize this place, it is a chip
marked as C012294B(-xx). Below photo shows that chip installed on Atari 130XE board. Usually, all
XE series computers have chips soldered directly into the board, while XL series usually has chips
socketed. If your Atari has Pokey soldered, you need to desolder it rst.
4. Grasp chip by the edges. Avoid touching the components and gold connectors on the chip.
3. With the device still in its antistatic bag, touch it to the metal frame of the system.
CAUTION: desoldering is a task for professionals. You may easily damage tracks and/or chip if you do not have
experience in desoldering. Ask professional for assistance.
1. Before you remove the product from ESD packaging and installing or replacing hardware, touch
an unpainted metal surface of the system for a minimum of 5 seconds.
5. If you need to lay the device down while it is out of the antistatic bag, lay it on the antistatic bag.
Before you pick it up again, touch the antistatic bag and the metal frame of the system at the same
time.
2. Do not remove the device from the antistatic bag until you are ready to install the device in the
system.
6. Handle the devices carefully to prevent permanent damage.
Fig.1 Original POKEY chip soldered in XE series Fig.2 PokeyMAX installed in 800XL

When you have empty socket, please carefully slot PokeyMAX into it (watch out the direction -
pin 1 must be in the correct location!). When you are sure, that chip is installed correctly, you may
turn on your Atari. Once powered on, please check keyboard, audio, SIO and paddles work as
usual.
Stereo version with Auto control wiring diagram:
When installed as above, it will function as a mono Pokey - no matter which version you have
purchased. Additional connections are required for Stereo and higher versions.
Stereo version with Ultimate1MB (U1MB) control wiring diagram:
A4
GTIA IN/BELL
JTAG
1
Pokey
MAX
®
L
RTo Audio Amplifier
GND
L Audio 1V
R Audio 1V
R Audio 5V
(for 1088XEL only - connect to pin 37 in second POKEY socket)
(connect to pin 13 of 6502C CPU - C014806/6502I chip)
(connect to pin 15 of GTIA - C014889 chip)
+
+
10µF
10µF
A4
GTIA IN/BELL
JTAG
1
Pokey
MAX
®
L
RTo Audio Amplifier
GND
L Audio 1V
R Audio 1V
R Audio 5V
(for 1088XEL only - connect to pin 37 in second POKEY socket)
(connect to pin 13 of 6502C CPU - C014806/6502I chip)
(connect to pin 15 of GTIA - C014889 chip)
+
+
10µF
10µF
U1MB (connect to U1MB or use manual switch: 0-mono, 1-stereo)
Firmwares: XXXMXXSA, i.e.105M02SA
Firmwares: XXXMXXSU, i.e.105M02SU
S1
S1 - OFF: mono, ON: stereo

A4
GTIA IN/BELL
JTAG
1
Pokey
MAX
®
L
RTo Audio Amplifier
GND
L Audio 1V
R Audio 1V
R Audio 5V
(for 1088XEL only - connect to pin 37 in second POKEY socket)
(connect to pin 13 of 6502C CPU - C014806/6502I chip)
+
+
10µF
10µF
A5 (connect to pin 14 of 6502C CPU - C014806/6502I chip)
A4
GTIA IN/BELL
JTAG
1
Pokey
MAX
®
L
RTo Audio Amplifier
GND
L Audio 1V
R Audio 1V
R Audio 5V
(for 1088XEL only - connect to pin 37 in second POKEY socket)
(connect to pin 15 of GTIA - C014889 chip)
+
+
10µF
10µF
A5 (connect to pin 14 of 6502C CPU - C014806/6502I chip)
A4
GTIA IN/BELL
JTAG
1
Pokey
MAX
®
L
RTo Audio Amplifier
GND
L Audio 1V
R Audio 1V
R Audio 5V
(for 1088XEL only - connect to pin 37 in second POKEY socket)
(connect to pin 13 of 6502C CPU - C014806/6502I chip)
(connect to pin 15 of GTIA - C014889 chip)
+
+
10µF
10µF
A7 (connect to pin 16 of 6502C CPU - C014806/6502I chip)
Stereo version with Covox wiring diagram:
Quad version with Auto control wiring diagram:
Firmwares: XXXMXXQA, i.e.105M04QA
Firmwares: XXXMXXSC, i.e.105M02SC
S1 - OFF: mono, ON: stereo
S1 - OFF: mono, ON: stereo/quad
S1
S1

A4
A7
JTAG
1
Pokey
MAX
®
L
RTo Audio Amplifier
GND
L Audio 1V
R Audio 1V
R Audio 5V
(for 1088XEL only - connect to pin 37 in second POKEY socket)
(connect to pin 16 of 6502C CPU - C014806/6502I chip)
+
+
10µF
10µF
A5 (connect to pin 14 of 6502C CPU - C014806/6502I chip)
(connect to pin 13 of 6502C CPU - C014806/6502I chip)
Quad version with Covox wiring diagram:
WARNING: due to lack of pins, this version does not have keyboard click (buzzer) audible via
RCA connectors. It is available still on regular Audio output (pin 3 of Video port).
With PokeyMAX you will get a goldpin bar, you can solder it to the PCB of PokeyMAX, but you
can also solder wires directly to the pads.
In the future we will be offering harnesses ready to use.
Firmwares: XXXMXXQC, i.e.105M04QC
S1 - OFF: mono, ON: stereo/quad
S1