Sony UP-CX2, Service Manual

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1-11 (E)
UP-CX2
Ribbon drive
assembly
Binding bands Label
Harnesses
Ribbon tension roller
Main chassis
Hole
Ribbon drive assembly
Clamper
Ribbon drive
assembly
Ribbon drive assembly
MEC-33
board
Clamper
BVTT
3
x
6
Harness
Harness
CN200
CN403
CN401
CN1
HP-131 board
1-6-2. Ribbon Drive Assembly
m
.
When the ribbon drive assembly is replaced, it is required to set the ratio of the takeup tension.
For details, refer to “Operation during Replacement of Parts” in Section 2-1, and Section 2-3.
.
When replacing to the new ribbon drive assembly, take a note of the three-digit value (Example: 1.54)
of C in the lowest line on the label which applied as shown in the fi gure before replacement.
1. Remove the top panel (C2) assembly. (Refer to Section 1-4-1.)
2. Remove the side panel (L). (Refer to step 4 in Section 1-4-2.)
3. Cut the two binding bands placed in the upper portion of the ribbon drive assembly.
4. Remove the harness from the two clampers.
5. Disconnect the four harnesses from the connectors (CN200, CN401, and CN403) on the MEC-33
board and the connector (CN1) on the HP-131 board.
6. Remove the fi ve screws, then remove the ribbon drive assembly.
n
When removing/installing the ribbon drive assembly, take care not to catch the ribbon tension roller
with the hole on the main chassis.
7. To install, reverse the removal procedure.
n
When attaching the ribbon drive assembly, be careful not to catch the harness.