Citizen CLP-621, Technical Manual

Page: 82 / 217

3-5. Disassembly, Reassembly and Lubrication
CLP-621 & CLP-631
3-10
( 2) Removing the Case U after detaching the Ribbon Unit
Caution: Once the Ribbon Unit is removed, you need to recheck if ribbon wrinkles
appear or not. If ribbon wrinkles are found, correct them referring to
“Removing Ribbon Wrinkle” on page
3-50 . Normally, adjustment with the
Ribbon Left-Right Balance Adjustment Knobs (Front/Rear) will remove ribbon
wrinkle.
1. Remove the Top Cover SA. Refer to 3-5-1 “Top Cover SA”.
2. Remove 2 screws (PH, M3x6) and detach the Ribbon Unit by lifting it upward. At this time,
disconnect 1 connector (CN701) from the Ribbon Main PCB.
3. Remove 1 screw (PH, M3x3) and detach the Motor Cover.
4. Remove 5 screws (PHT (BH2T), M3x14).
5. Release the Head Open Lever (blue color) to open the Head Unit, and then carefully
detach the Case U Unit by lifting it upward.
PH, M3x3
Cover, Motor
PH, M3x6
Unit, Ribbon
PHT (BH2T), M3x14
(Ribbon Left-Right Balance
Adjustment Knob (Rear))
(Ribbon Left-Right Balance
Adjustment Knob (Front))
(Case U Unit)
(CN701)