14
R-22AM
R-23AM
R-23AT
F FUSE F3, F4 M8A TEST
CARRY OUT 3D CHECKS.
If the fuses F3 and/or F4 M8A are blown, there could be shorts in the high voltage transformers T1 and/
or T2 or there is a ground in wire harness. Check and/ or replace the high voltage transformers T1 and/
or T2 or repair the wire harness.
CARRY OUT 4R CHECKS.
CAUTION: Only replace
fuses F3, F4 M8A with the correct value replacement.
G WEAK POINT F1 TEST
CARRY OUT 3D CHECKS.
If the weak point F1 is blown, there could be a shorts or grounds in electrical parts or wire harness.
Check them and replace the defective parts or repair the wire harness.
CARRY OUT 4R CHECKS.
CAUTION: Only replace weak point F1 with the correct value replacement.
If incorrect readings are obtained, make the necessary switch adjustment or replace the switch.
CARRY OUT 4R CHECKS.
H FUSE F2 F6.3A TEST
CARRY OUT 3D CHECKS.
If the fuse F2 F6.3A is blown when the door is opened, check the 1st. latch switch SW1, monitor switch
SW4 and monitor resistor R1.
If the fuse F2 F6.3A is blown by incorrect door switching replace the defective switch(s) and the fuse
F2 F6.3A.
CARRY OUT 4R CHECKS.
CAUTION: Only replace fuse F2 F6.3A with the correct value replacement.
TEST PROCEDURES
PROCEDURE
LETTER COMPONENT TEST
E SWITCH TEST
CARRY OUT 3D CHECKS.
Isolate the switch to be tested and using an ohmmeter check between the terminals as described in
the following table.
D HIGH VOLTAGE CAPACITOR TEST
CARRY OUT 3D CHECKS.
A. Isolate the high voltage capacitor from the circuit.
B. Continuity check must be carried out with measuring instrument which is set to the highest
resistance range.
C. A normal capacitor shows continuity for a short time (kick) and then a resistance of about 10MΩ
after it has been charged.
D. A short-circuited capacitor shows continuity all the time.
E. An open capacitor constantly shows a resistance about 10 MΩ because of its internal 10MΩ
resistance.
F. When the internal wire is opened in the high voltage capacitor shows an infinite resistance.
G. The resistance across all the terminals and the chassis must be infinite when the capacitor is
normal.
If incorrect reading are obtained, the high voltage capacitor must be replaced.
CARRY OUT 4R CHECKS.
Table: Terminal Connection of Switch
Plunger Operation COM to NO COM to NC
Released Open circuit Short circuit
Depressed Short circuit Open circuit
COM; Common terminal,
NO; Normally open terminal
NC; Normally close terminal
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