26
VMA160, VMA1120 & VMA1240
+27V
+27V
Input 4 Mic/Line [Bal]
Input 1 Mic/Line
[1/4" Bal]
BT/USB
Summed RCA
Input 2 PTT
Input 2 Mic/Line [Bal]
Music Line
[Summed RCA]
VOX
Attenuation
(VOX/PTT)
CH1_PRIORITY
VCA
POWER
AMP
HPF
TONE
CONTROL
Hi-Z Switch
Feedback
MASTER VOLUME
REMOTE VOLUME
OUTPUT
TRANSFORMER
100V
70V
COMMON
-
+
SPI CLIP
MCU
SDRAM
DAC
FLASH
BT MODULE
BT/USB
MCU SECTION
CRYSTAL
Input 3 Mic/Line
[1/4" Bal]