Sanyo ECR-238 - Introduction to SANYO ECR-238; Location Guidelines; Electrical Connection Advice; Cleaning Instructions

1. MACHINE RECOGNITION
1-1. POWER SUPPLY
This machine has no power switch, the only way to remove power is disconnect the machine
from the main power supply. Even after it disconnected, the VCM voltage can still be
presented by the Lithium battery to keep the all contents in the RAM (Random Access
memory). Thus during the installation, do not short the circuit on the Main PCB.
CAUTION :
The AC power will be supplied from the AC outlet even if the mode lock SWITCH
is “OFF” position.
1-2. BATTERY REPLACEMENT
This machine has equipped with the Ni-Cd battery to keep the contents of memories.
At the time of battery replacement, it must be replaced as follows.
Ni-Cd BATTERY :
MODEL : 3N-50AAAS (Service Parts Code ; 632 755 1867)
MANUFACTURE : Sanyo Electric Co., Ltd.
RATING : 3.6V, 45 mAH
1-3. PROTECTIVE EARTH
There are couple of grounding wires to protect from the miss operation or damage generated
by incoming noise or static electricity.
All of the grounding wires should connect firmly as they were originally assembling after
repairing.
IMPORTANT :
As the circuits consists of many ICs, please handle with care. Electrostatic discharge to the
PCB may give damage to the circuit.
So discharge your electric charge before handling PCBs.