Carriage Adjust Sensor L" And "Sa, Head Up Switch; Sa Ref Sen Pcb - Citizen CL-S6621 Technical Manual

Disassembly, Reassembly and Lubrication

(2) SA Ref Sen PCB

1. Remove the "Carriage Adjust Sensor L". Perform steps 1 to 7)-2 in above
"Carriage Adjust Sensor L" and "SA, Head Up
2. Disengage the "E-Ring, 1.5" (), remove 1 screw (BH, M3x4 (NI)) (), and detach the
"Holder, Guide Sensor L".
3. Slide the "Guide Paper R" () to the left and remove the "Shaft Sensor Guide" () in the
direction shown by the arrow, together with the "Guide Paper R" Block and "Holder Adjust
Sensor L" Block.
4. Remove the "Spacer Guide Shaft", and then pull out the "Guide Paper R" Block and "Holder
Adjust Sensor L" Block from the "Shaft Sensor Guide".
5. Remove the "Spring Friction Sen PG" and the "Plate Friction PG" from the "Guide Paper R".
6. Disconnect the "SA, Ref Sensor Cable" from the "SA Ref Sen PCB".
7. Remove the 2 screws (No.0 PHT (BT#1) M2x3) and detach the "SA Ref Sen PCB" from the
"Holder Adjust Sensor L".
No.0 PHT (BT#1) M2x3
a
Notes on reassembling:
• When the "SA Ref Sen PCB" is replaced with new one, perform the sensor adjustment.
Refer to "3-7-1 Transparent/Reflective Sensor Position
• Assemble the "Shaft Sensor Guide" () (with the "Holder Adjust Sensor L" Block, "Guide,
Paper R" Block and the "Spacer Guide Shaft"), and align its ends in places. Next, assemble
the "Holder, Guide Sensor L". (Its groove "A" should engage with the frame plate. Also its
protrusions should be inserted into the holes "B" in the frame.)
(to be continued on the next page)
CL-S6621
SA Ref Sen PCB SA, Ref Sensor Cable
7
E-ring, 1.5
a
b
c
d
b
c
Switch"".
Holder Adjust Sensor L
a
No.0 PHT (BT#1) M2x3
Guide Paper R
Spring Friction
Sen PG
Plate Function PG
Adjustment".
3-50
"3-6-20(1)
[Bottom View]
No.0 PHT (BT#1) M2x3
9
10
Shaft Sensor Guide
Spacer Guide Shaft
B
A
Holder, Guide Sensor L
8
BH, M3x4 (NI)