Testing After Power-Up - Atari TETRIS Installation Instructions Manual

Installation
4. Try using the existing connectors. Cut the original
wire approximately
3
inches from the original con-
nector. Strip off about one-half inch of the insula-
tion.
5. Slip the shrink tubing over the wire you just
stripped.
6. Solder the new wire designated for that position to
the original wire you just stripped.
WARNING
Do
not simply tie the wires together. This
can cause nagging intermittent problems
through loose connections, oxidation, or
both, or a fire in the electrical system.
7. Slide shrink tubing down over the soldered wire.
Melt shrink tubing around all uninsulated in-line
wire connections. Do not use electrical tape.
It
can
unravel and cause problems with the electrical sys-
tem.
8. Use wire tie wraps and secure the cable to the cabi-
net where it seems necessary.
Connecting Power Wires
1. Connect the wires that are designated for your
power supply. You will need a supply of +5V and
+ 12V The new game may not require all of the
voltages used in the original game. Tie off any un-
used wires.
2. You will notice that there is more than one wire for
each voltage. You must double up some wires as
called out in the footnotes of Table 1-2. This will
help to ensure that you do not overload the edge
connector and cause it to burn.
Connecting Video Display Wires
Connect the wires designated for the RED, GREEN,
and BLUE video guns along with the sync and ground
wires.
NOTE
JAMMA provides only negative compos-
ite sync. Most video displays accept neg-
ative composite or separate positive
sync. If your video display requires sepa-
rate positive sync, see page 3-1 of this
manual or call TELEHELP at Atari Games
Customer Service.
Connecting Speaker Wires
Find the two wires (twisted pair) that are designated
for the speaker and hook them up.
1-6
Tetris
Connecting Coin Door Wires
1.
Connect the designated wires to the coin switches
and meter.
2. Connect the door lamps to the appropriate voltage
on the power supply. Some games have separate
power supply outputs for the coin door lamps.
3. Be sure to clean and lubricate the old coin mecha-
nisms.
Grounding the Cabinet
Find the ground lead
~reen)
of the 115V input power
line. Connect this lead in daisy-chain fashion to the
coin door, control panel, video display, and power
supply. This is a safety requirement for the players'
protection. This AC ground must be of #18 AWG wire
or larger.
Cabinet System Checkout
Do the following before plugging in the Game PCB:
1. Apply power to the game, and check for the fol-
lowing voltages. If any voltage is incorrect, remove
power and correct the problem before proceeding
any further.
• +5 volts on pins 3, 4, C, and D of the 56-pin PCB
connector
• +12 volts on pins F and 6 of the 56-pin PCB con-
nector
2. Check that the display has power by observing the
glow of the filament inside the neck of the picture
tube.
3. Check that the attraction shield lamp has power.
4. Check that the system ON/OFF switch functions
properly. Now turn off the power to the game.
Tetris Printed-Circuit Board Installation
1.
Find the Tetris Game PCB (part no. A044809-0l)
and install it inside the cabinet. Use the nylon
standoffs to secure the PCB through its mounting
feet.
2. Connect the 56-pin connector to the PCB with the
label on the same side as the components on the
PCB. The connector is keyed for proper orientation.
Table 1-2 shows the
JAMMA
pin assignments.
3. Apply power to the game. Check that the Game
PCB functions. If a video picture is not present, re-
fer to Chapter 3, Troubleshooting, for suggestions
on what to do.
Testing After Power-Up
The Tetris kit tests itself and provides visual and audi-
ble indications of the condition of the game circuitry
and controls. Self-test information is displayed on the