Schematic Diagrams

This chapter con- * are printed at tains the schemat- the end of this your Hydra game PCB and the JSA Audio II two board assembly drawings are illustrated PCB. In addition, the faulty RAM ROM tables in Chapter 4, Parts Illustrations.) 68.07 63.06 68.05 68 .04 63.03 68.02 .01 63.00 -48.07 -63.36 -63.05 -63.04 -63.03 -63.02 -63.01 -63.00 -& B. I3 I 63.G13 I 7< 1 -& B. I3 I 63.G13 I 7< 1 , 1200 68.R18-id VJ_ 68. RS i< 3 P 63.07 68.06 68.G5 68.04 68.03 63.02 68.01 68.00 68. PUGRES 68....

Entering and Exiting the Self Test

To enter the self-test, turn on the self-test switch on the JSA Audio II PCB (next to the volume control). Do- Table 2-1 Bad RAM Location by Error Address Table 2-1 Bad RAM Location by Error Address Table 2-2 Bad ROM Location by Error Address Table 2-2 Bad ROM Location by Error Address

Illustrations

Figure 1-2 Hydra Kit Parts Installed in Figure 2-1 Select Test Menu Screen 2-2 2-2 Statistics 2-3 Coin Options 2-4 Game Options 2-5 Alphanumeric Test Screen 2-5 2-6 Motion Object Test Screen 2-5 2-7 Switch Test 2-8 Playfield Test 2-9 Color RAM Test Screen 2-6 2-10 Convergence Test Screen 2-7 2-11 Sound Test Figure 4-1 Hydra Kit Parts 4-2 X-Y Steering Control Assembly 4-4 4-3 Hydra Foot Pedal Assembly 4-6 4-4 Hydra Game PCB Assembly 4-7 4-5 JSA Audio II PCB Assembly 4-8 Schematic Diagram 5-2...

Convergence Test

The convergence test has five screens black, violet, green, blue, and grey. The black screen is shown in Figure 2-10. To see the remaining screens, press either trigger button. Press either boost button to go to the menu screen. The grid lines should be straight within 3.0 mm and the lines should not pincushion or barrel. The convergence of the lines on the violet and black screens should be within 2.0 mm. If these screens do not meet these criteria, adjust the video display as described in the...

Harness

If your game does not already have a JAMMA harness, install the JAMMA harness in the cabinet. 2. Install the split beads on the harness as close to the PCB edge connector as possible. Hold the beads on the harness with the tie wraps included in the kit. You must install the split beads included in the kit on the JAMMA harness to meet FCC requirements. 3. Using Table 1-3, JAMMA Pin and Wire Connections, for wiring information, connect the JAMMA

Figure 41 Hydra Kit Parts List A04837101 A

72-07002 1 4 Fender Washer 72-6612S 6 x 3 4-Inch-Long, Pan-Head, Cross-Recessed Type-AB Screw 75-5112B 10-24 x 3 4-Inch-Long Black Carriage Bolt 75-5520B 1 4-20 x l1 -Inch-Long Black Carriage Bolt 047205-01 Attraction Panel Shield 047853-01 Control Panel Mounting Bracket 047889-01 Attraction Panel Film 047892-01 19 25-Inch Monitor Bezel 141026-001 .50-Inch I.D. Split Ferrite Bead 160044-001 Snap-Action Switch 175014-1040 10 Flat Washer 176038-4412 1 4-20 x 3 4-Inch-Long Tamper- 4 177010-240...

Installing the Foot Pedal

To install the foot pedal, you need a copy of the foot pedal installation template printed at the end of this chapter and the following parts from the kit Four fender washers and locknuts 1. Tape the foot pedal template to the lower right corner on the front of the game. Make sure the template is placed correctly as per the measurements printed on it. 2. Drill four 5 l6-inch corner holes and a 1 3 16-inch center hole through the template. 3. Feed the pedal harness through the large, 1 3 16-inch...

Tools Required

Drill with a 1 4-inch and 5 l6-inch drill bits, a 1 3 4-inch hole cutter or a 1 3 4-inch chassis punch , and a 1 3 l6-inch hole cutter 1 4-20 hex wrench Wire cutters and strippers Straight edge Squeegee X-ACTO knife Insulated wire connectors if you are installing a new JAMMA harness 5 32 Tamper-Proof Hex. Key Driver Red Square Boost Button With Lamp Packaging materials are not listed