Inter-m PA-206 - Block Diagram

PUBLIC ADDRESS MIXING AMPLIFIER
12
PA-206/212/224
Block Diagram
Block Diagram
IN PUT
STA GE
MU TE
SPEA KER Z ONE CON TROL CIRCUIT
PWM
MO DULA TO R
KEY IN
SP RE ALY
CO NTRO L
AN D
HA NDSHA KE
DRIV ER
HIG H
DRIV ER
LO W
IN PUT
STA GE
MU TE
CO NTRO L
AN D
HA NDSHA KE
DRIV ER
HIG H
DRIV ER
LO W
MO DULA TO R
PWM
CLASS D AMPLI FIER
MA STER
VO LUME
SPE AKER ZONE INDICATO R
SP ALL
SP 5
SP 4
SP 3
SP 2
SP 1
IN PUT 6 LE VEL
AM P
TE L IN LEV EL
INP UT SIGNAL DISP LAY
INP UT 3INP UT 2INP UT 1
INP UT 6INP UT 5INP UT 4
SIG SIGSIG
SIG SIG
IN PUT 5 LE VEL
IN PUT 4 LE VEL
IN PUT 3 LE VEL
IN PUT 2 LE VEL
IN PUT 1 LE VE
L
SIGN AL DE TEC TIO N
IN PUT 1,
EXT IN
0d Bu
TO NE CO NTRO L
SIG
CH IME
(0)
(100 Hz, 10 kHz)
(+10 ~ -10)
LP FHP F
MU TE
BUFF
SIRE N
CH IME, SIRE N
PRESET 1
PRESET 2
PRESET 3
PRESET 4
PRESET 5
PRE SET I N
CH IME SWIT CH
SIRE N SWITC H
MU TE CO NTRO L
-3-6 0-9-12-1 6-20
PRO T
LEVE L METE R
LED D RIVER
PA -120
PA -60
(+50 ~ +1 0)
AM P
MIC/LINE
Vph
PH ANT OM PO WER
AM P
PH ANT OM PO WER
Vph
AM P
Vph
PH ANT OM PO WER
+
-
TE MP SEN S
PRO TECTIO N CIRCU IT
0d Bu
MIX OU T
CH IME
SIRE N
+15V
-15 V
B+
B-
AC IN
POWER SWITCH
PW R
P/T
RECTIFIER
CIRCUIT
FUSE
+S2
+5V
Vth
-20 ~ 0 dBu
TEL IN
+
-
INP UT 1
-70 ~ -20dBu
-
+
INP UT 2
-70 ~ -20dBu
+
-
INP UT 3
-70 ~ -20dBu
INP UT 5 INP UT 4
-20d Bu
-20d Bu
-10d Bu
INP UT 6
RM-05
-20d Bu
INP UT 6
(+50 ~ +1 0)
MIC/LINE
(+50 ~ +1 0)
MIC/LINE
SIGN AL DE TEC TIO N
TE L IN
MU TE
(0)
MI X
(0)
MI X
(+10 )
GA
(+10 )
GA
(0)
BUFF
(+10 )
GA
(+10 )
GA
(0)
BUFF
LIM MIT ER
(+10 )
GA
(-10 )
GA
SPE AKER TERMIAN L
SP1
CO M
SP2
SP3
SP4
SP5 CO M
8 / 4 OHM +
CO M
8 / 4 OHM -
OPT
INP UT
DEC ODER
MP3
USB 2.0
GA
(+7.8)
PA-206/212