Olympus CKX41 수리 매뉴얼 - 페이지 41
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CKX31/CKX41
4. Electrical Unit
4-1 CKX31/CKX41 connecting diagram
E001
INPUT
L
N
E
100-120/
220-240VAC
50/60Hz
The circuit board ass'y (AQ828900) consists of the circuit board(DZ308400) and rheostat ass'y
(DZ308500). In case where the above parts are replaced as AQ828900, the voltage adjustments for
the circuit board ass'y are not necessary. However, voltage adjustments are necessary when
individually replacing either the circuit board(DZ308400) or rheostat ass'y(DZ308500). The
following explains procedures for voltage adjustments. For replacing circuit board/rheostat ass'y,
refer to disassembly and assembly procedures on C-13 to C-14.
4-2 Voltage adjustment
6V30W
halogen
bulb
(a)
D. REPAIR PROCEDURE
U001
E002
E003
E002 E003
S001
1
2
4
3
Lamp cable
A
Power cord
VR21
VR23
Set the digital multimeter
to CN2 2-pin
Power switch
Circuit board ass'y
(AQ828900)
U002
Circuit board
(DZ308400)
1
CN1
U103
3
CN3
Rheostat
ass'y
(DZ308500)
Minimum voltage adjustment
1) Turn ON the power. Turn the light
intensity control part (a) cunterclock-
wise to lower lamp brightness to its
lowest level.
2) Rotate the circuit board's trimmer VR21
to adjust so that the lamp output voltage
between the CN2's 1 and 2 pins is within
A
the standard shown below using a digital
multimeter.
Maximum voltage adjustment
1) Turn ON the power. Turn the light
intensity control part (a) clockwise
to increase lamp brightness to its highest
2) Rotate the circuit board's trimmer VR23
to adjust so that the lamp output voltage
between the CN2's 1 and 2 pins is within
the standard shown below using a digital
multimeter.
CN2
VR22
* Do not turn the trimmer VR22 mounted on
circuit board because it is adjusted to the
prescribed current value.
(overcurrent protection)
D-14
U003
U004
1
CN2
2
E005
E004
E001: Ferrite core
E003
E002-E006: Binder
E002
U203
Dimmer Cont
Standard: DC1.10 - 1.15V
(adjustment target: 1.123V)
level.
Standard: DC5.65 - 5.75V
(adjustment target: 5.70V)
6V30W
Halogen
Lamp
E006