Kodak DirectView CR 825 Diagnostics Manual page 151

DIAGNOSTICS
10DEC05
12 Manually rotate the SLOW SCAN AY and check for the correct voltage measurements at
DG4825-1
Page the following test points:
151 of 180
Negative
TP17
TP17
TP17
13 If a measurement does not match the specification, install a new COIL BOARD A7.
14 Connect the CONNECTOR J1.
15 Check the COILS and FUSES on the COIL BOARD A7.
Important
Do not rotate the SLOW SCAN AY when you measure the following resistances.
16 Disconnect the CABLE from the CONNECTOR J4.
17 Without moving the SLOW SCAN AY, measure the resistance:
Phase
18 If a measurement is not correct, install a new COIL BOARD A7. Use
ENCODER and SLOW SCAN
19 Connect the CONNECTOR J4.
MULTIMETER
HALL EFFECT
Positive
TP14
TP16
TP15
PINS on CABLE P4
A P4-8 P4-12
B P4-2 P4-16
C P4-6 P4-18
Voltage
SENSOR
High
HALL A 4 - 5 V DC < 1 V DC
HALL B 4 - 5 V DC < 1 V DC
HALL C 4 - 5 V DC < 1 V DC
Ω
5 - 8
5 - 8
5 - 8
ROTOR.
Checkout Procedures
Low
COIL BOARD A7,