Sony HCD-GZR888DA Service Manual page 7

Service Position for the BU
Note for Replacement of the KNOB (JOG)
When replacing the KNOB (JOG), apply the SANKOL FTA-001HA (Part No. J-2501-264-A) to the end of the rib at 6 places.
Note for Replacement of the HOLDER (KNOB)
When replacing the HOLDER (KNOB), apply the SANKOL FG-21BL (Part No. J-2501-251-A) to the end of the SPRING (KNOB)
at 2 places after the SPRING (KNOB) is installed.
SANKOL FG-21BL
holder (knob)
(Part No. 4-165-418-01)
SANKOL FTA-001HA
HCD-GZR888DA/GZR999DA
DMB19 board
SANKOL FTA-001HA
knob (JOG)
(Part No. 4-165-417-11 or 4-165-417-21)
SANKOL FG-21BL
spring (knob)
(Part No. 4-171-496-02)
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