Akai PDP42Z5TA Service Manual page 81

CREG2 - 7, DAC Volume Registers for channel 1 to 6, (
ADDR[3:0]
BIT 7
Hex 02 Channel 1 left volume register, VOLREGL1[7:0]
Hex 03 Channel 1 right volume register, VOLREGR1[7:0]
Hex 04 Channel 2 left volume register, VOLREGL2[7:0]
Hex 05 Channel 2 right volume register, VOLREGR2[7:0]
Hex 06 Channel 3 left volume register, VOLREGL3[7:0]
Hex 07 Channel 3 right volume register, VOLREGR3[7:0]
Default Value
VOLREG:- Control the volume of the 6 DAC's
80h corresponds to 0 dB and 02h to -64 dB. in -0.5 db step. Value should not be programmed greater than 80h.
BIT 6 BIT 5
1 0 0
=hex02 - hex07, default=hex80)
ADRS
Volume Registers
BIT 4 BIT 3 BIT 2
0 0
79／148
CE2836
BIT 1 BIT 0
0 0 0