JRC JMR-92 Series Field Service Manual page 623

Step 3 Remove the Operaition Circuit A: CCK-1050
Remove the screws (M3: 12 locations) that fasten the CCK-1050. Float it from rear case by
hooking its edge. Pull out the W67 from the J617, and then remove it.
CCK-1050
※Reverse Side
Step 4 Change the trackball: CCK-1060.
Open the ferrite core which has been attached to the W67 firstly.
Remove the screws (M3: 2 locations) that fasten the trackball.
Float the trackball. Then remove it together with W67.
Disconnect the W67 from the trackball, and change it to new one.
Washer
CCK-1060
Rear Case
Chapter 4 Replacement procedure
J615
J631
W67
Ferrite Core
4-402
J617
※Reverse Side
Ferrite Core
W67
W67 Lay Out
W67