Sony Walkman TCD-D7 - Display Light Button; Reset and Increment Button (+); Counter and Decrement Button (-); Clock Setting Button (CLOCK;SET)

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Location and Function of Controls
(12) LIGHT button
Press to illuminate the display window when
using the unit in the dark.
(13) RESET/+ button HO
[1d COUNTER- button DO)
CLOCK/SET button O@
[16] DIGITAL VO + REMOTE (digital
input/output · remote) jack BO
Connect equipment with digital
inputs/outputs using the connecting cord
POC-DA12 or RK-DA10 (not supplied), the
adaptor kit RM-D3K, or the remote controller
AMT-D7 etc.
(17) Battery compartment door
(18) DC IN 6V (external power input) jack ©