Casio DX-500BR, Руководство по обслуживанию и каталог запасных частей

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SCLK_
GND SOUT
SIN
3. DATA TRANSFER
This unit can transfer the stored data to another unit.
Note: Before connecting wires, be sure to reset the Back up unit.
1. Remove the BATT 2 battery cover.
2. Connect 4 terminals on the PCB with wires as shown in the figure below.
User's unit Back up unit
RESET
BATT 1
BATT 2
RESET
BATT 1
BATT 2
Wiring
GND GND
SCLK_ SCLK_
SIN SIN
SOUT SOUT