Family Fun Companies Reactor, Parts, Service And Distribution, Page: 18 / 26

Reactor
17
10. Error Analysis
PROBLEM POSSIBLE CAUSE SOLUTION
No power at startup
1. The power is not on.
2.Power supply box failure
3. Crystal oscillator stops.
4. The chip for main program
is damaged.
1. Check power supply AC voltage.
2. Check +5 and +12 DC output.
Replace power supply cage if there
is no output.
3. Replace the 11.0592M crystal
oscillator on the main PC board, the
grounding voltage for two pins
should be in the range from 2.1 to
3.1.
4. Replace the chip for main
program.
LED is not full
brightness (dim).
1. This section has been burnt
out.
2. No IC6B595 output.
1. Replace LED
2. Replace IC6B595
No sound
1. Speaker damage
2. Amplifier IC
is
burnt out.
3.6295 IC
is
burnt out.
4. No +12V power reaches
amplifier IC.
1. Disconnect the power and check
D.C. resistance for speaker.
Replace speaker.
2. Replace the fore signal terminal if
the power supply is OK, or
amplifier IC is damaged. Speaker
is OK if it buzzes.
3. If item 1, 2, 4 work well, it is may
be 6295 IC failure or the speech
chip failure.
4. Make sure that the +12V power
supply is provided.