Difference between revisions of "Taito Ice Cold Beer"
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= PinSide ICB Owners Thread = | = PinSide ICB Owners Thread = | ||
A very lengthy thread regarding the Taito ICB model can be found [https://pinside.com/pinball/forum/topic/ice-cold-beer-icb-owners-thread <b><u>here</b></u>]. | A very lengthy thread regarding the Taito ICB model can be found [https://pinside.com/pinball/forum/topic/ice-cold-beer-icb-owners-thread <b><u>here</b></u>]. | ||
+ | |||
+ | = Test Point Typical Values = | ||
+ | The following behavior represents correct operation for a fully working MPU board | ||
+ | |||
+ | R (reset) - transition from low to high at power on | ||
+ | E (clock) - pulsing | ||
+ | IRQ (interrupt request) - high | ||
+ | FIRQ - pulsing high | ||
+ | HZ30 - pulsing rapidly | ||
+ | SINT - pulsing rapidly | ||
+ | Timer - low | ||
+ | MOTENBL (motor enable) - low | ||
+ | SWIRQ - low | ||
= Florescent Lamp = | = Florescent Lamp = |
Revision as of 12:13, 30 November 2023
1 PinSide ICB Owners Thread
A very lengthy thread regarding the Taito ICB model can be found here.
2 Test Point Typical Values
The following behavior represents correct operation for a fully working MPU board
R (reset) - transition from low to high at power on E (clock) - pulsing IRQ (interrupt request) - high FIRQ - pulsing high HZ30 - pulsing rapidly SINT - pulsing rapidly Timer - low MOTENBL (motor enable) - low SWIRQ - low
3 Florescent Lamp
The original playfield lamp is an F15T12. The fluorescent light degrades the paint on the backglass. The florescent tube can be replaced with a modern LED, such as TBD.
4 DIP Switch Settings
5 Component Image Gallery
6 MPU and "Diode Check" Map
The image at right shows "diode test" results for the entire board.
Procedure
- set meter to diode check
- red probe on ground
- black probe used to test every other pin of each IC
7 Taito Service Tips
The following service tips were issued by Taito, and cover...
- Weak errant ball solenoid
- Ball sticks between hole and bar in attract mode (ROM revision)
- Lubrication of side rods
- Ramifications of stuck switch in the switch matrix
8 Diagnostics
A video demonstrating MPU diagnostics can be found here.
9 Connector Pin-out
10 Parts Bill of Materials
This PBOM is subject to typos.
Please submit corrections to Chris Hibler (chrishiblerpinball AT gmail.com). Thanks!
A detailed PBOM sorted by part designation as well as in traditional parts count order can be found here.
11 Motor Replacement
Replacement motors for Ice Cold Beer were available from Twisty Arcade a few years ago. The installation procedure for this motor, or an equivalent can be found below. The principle part of the job is to transfer the gear from the old motor shaft to the new motor shaft, and modify the motor bracket to mate to the new motor.
The motor from Twisty Arcade came with a 6.2ohm, 5W resistor. It may be necessary to replace this part with a 10ohm, 5W resistor to slow the motor a bit more. If your game raises the bar too far to "serve" the ball, install a replacement resistor of perhaps 8.2ohm, 5W, or even the 10ohm part.