Ice Fever (Gottlieb, 1985): Troubleshooting and System 80A Replacement Boards
Your Ice Fever by Gottlieb has a game-over relay that keeps cycling, misadjusted pop bumpers, weak displays, or won't start? These symptoms are typical of Gottlieb System 80A pinball machines whose original boards are now over 40 years old. The good news: our battery-free replacement boards, Plug & Play, bring your machine back to life.
Ice Fever (Gottlieb, 1985): Overview
Released in 1985, Ice Fever is a System 80A pinball machine with a festive winter skiing theme and a fast playfield that relies on well-adjusted pop bumpers. It uses the Gottlieb System 80A electronics.
- Manufacturer: Gottlieb
- Year: 1985
- Electronic system: Gottlieb System 80A
- Type: solid state
- Theme: winter / skiing
Common Issues (System 80A)
All Gottlieb System 80A pinball machines share the same weaknesses as System 80, with added complexity from alphanumeric displays and speech synthesis:
- Leaking NiCad battery: soldered to the MPU board, it corrodes traces and components over time — the #1 cause of dead boards. Remove it immediately.
- Floating grounds: the original ground wiring is undersized and causes resets and erratic behavior. Ground mods are virtually mandatory.
- Edge connectors (the "Gottlieb plague"): oxidized edge connectors cause display faults, missing digits, and intermittent failures. Clean or replace them.
- Corroded connectors: Molex connectors, especially the MPU-to-driver connection, lose contact and require re-pinning.
- Drifting power supply: the 5V and 12V rails sag over time; trim pots and aging capacitors need attention.
- Sound board: leaking capacitors, cold solder joints, and failing ROMs cause weak or absent sound and speech.
Ice Fever-Specific Issues (Forum Reports)
- Game-over relay cycles during play: it won't stay latched, most often due to loose connectors (the classic Gottlieb fault).
- Misadjusted pop bumpers: bumpers that fire too much or "dead pops" that ruin playability.
- Dead transformer: a reported case of a dead transformer causing total failure.
- Weak displays: display brightness tied to power-supply problems.
- Battery damage on the CPU board: corrosion that absolutely must be neutralized.
Compatible Replacement Boards for Ice Fever
- GottFA80_Plus (Light) — all-in-one CPU + driver + power supply board, without sound.
- GottFA80_Plus (Full) — same all-in-one board with integrated sound.
- Gosof — replacement sound board for System 80 and 80A.
- Godri80 — replacement driver board.
- Lisy80 — CPU board + web-based diagnostics.
- GoPOP80 — pop bumper driver board (MA-922).
The GottFA80_Plus replaces the original CPU, driver, and power supply in a single board — battery-free, no corrosion risk. The Gosof replaces the sound board (System 80 and 80A, including speech synthesis). Installation is Plug & Play, with tutorials and free support. Contact us.
FAQ — Ice Fever Gottlieb
My game-over relay keeps cycling.
Most often loose connectors — the classic Gottlieb fault. Re-pin the connectors; a GottFA80_Plus stabilizes the logic.
My pop bumpers are dead or too sensitive.
Adjust the bumper switches and check the pop bumper driver. The GoPOP80 replaces the pop bumper driver board.
Is the GottFA80_Plus compatible with my Gottlieb System 80A?
Yes. The GottFA80_Plus covers System 80, 80A, and 80B. If in doubt, contact us.
Do I need to keep the original battery?
No. Our boards run without a battery and eliminate the #1 cause of corrosion.
How long does installation take?
Installation is Plug & Play: just a few minutes, no soldering required, with tutorials and free support.
Does a battery-free board retain settings and high scores?
Yes. Modern replacement boards use NVRAM: no battery, no corrosion, and settings are preserved when powered off.
Step-by-Step Diagnostics
- With power off, visual inspection: look for any signs of battery leakage or corrosion on the MPU of your Ice Fever; remove the NiCad battery if still present.
- Power supply: measure the 5V rail and verify it reaches the MPU (replace the drifting trim pot or re-solder the regulator if voltage sags).
- Grounds: apply ground mods between the boards (CPU, driver, power supply, sound).
- Connectors: re-pin oxidized Molex and edge connectors, especially the MPU-to-driver connection.
- Displays: never connect or disconnect a display while powered on; test with a known good display.
- Final test: verify startup, credits, solenoids, and displays; if needed, contact free support.
Useful Guides
- How much does pinball machine repair cost? A price guide
- How much is my pinball machine worth? Value and estimation
- Pinball machine leg sizes: the complete guide
- Which board for a Gottlieb System 80, 80A or 80B?
See Also
- El Dorado City of Gold (Gottlieb, 1984)
- The Games (Gottlieb, 1984)
- Alien Star (Gottlieb, 1984)
- Touchdown (Gottlieb, 1984)
