Sony MDR-IF4000 - Manual (Page 24)

MDR-IF4000
24
• CHANGE OF RX BOARD
The RX board was changed into suffix-12.
Printed wiring board and schematic diagram of new type, and changed parts list are described in this Supplement-1.
Refer to original service manual (9-879-301-02) previously issued for the other information.
NEW TYPE IDENTIFICATION
1-864-936-11 (Refer to original service manual)
1-864-936-12 (Refer to supplement-1)
[ RX BOARD ] (SIDE B)