WaxJet 6100, Справочное руководство по обслуживанию

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Service
Procedures
The following procedures are typically the first procedure to try in
case of lockups, boot problems, or problems that produce erratic or
garbled printed messages.
Memory Reset
Memory reset is used to completely reset system memory to default
values. Sometimes power fluctuations or other interference can lock
up data busses in the system. A memory reset can remedy a myriad
of problems ranging from boot failures to garbled prints. Completely
resetting will load all default values and clear all memory data
busses. All data currently being saved in RAM will be lost, however.
1. Turn system off.
2. Disconnect battery from CPU board for 5-10 seconds and
reconnect.
3. Re-apply power to system.
Manual ZAP
The manual ZAP will completely clear any capacitance built up on
the CPU bus lines that might result from a power fluctuation or a
static hit. It will also completely clear the RAM.
1. Turn system off.
2. Connect a jumper wire to TP2 at the upper left corner of the CPU
board.
3. Touch the other end of the jumper to all the pins on the IC’s
located on the CPU board.
4. Disconnect jumper and re-apply power.
7-14 Service