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User’s Manual
LINE 212-6 - SP / LINE 212-9 - SP
KLING & FREITAG GMBH ©2003 - 2006
Version 4.1, 19.06.2006
Page 31 of 45
14.
Block Diagram LINE 212 - SP
ERRO
R
SI
G
N
A
L
CO
NT
RO
L
SI
G
N
A
L
FIL
TE
R A
M
P
LIN
E 2
12
PO
W
ER
SU
PP
LY
PO
WE
R '
O
N
'
IN
PU
T U
N
IT
FILTERBOARD 'LINE 212'
PH
A
SE-
C
O
RRE
C
TI
O
N
LIN
E 21
2 -
SP
AM
PLIFIER
UN
IT
1
HI
-P
AS
S
GAI
N
±
6 dB
FIL
TE
RS
'O
N
' /
'O
FF
'
HF
-
C
O
RRE
C
TI
O
N
ERRO
R
CON
TR
O
LL
ER
LIMI
TE
R
RM
S
+ PE
A
K
TH
RE
SH
O
LD
PE
A
K
TH
RESH
O
LD
RM
S
HI
-P
AS
S
G
N
D
-L
IFT
±
12 V D
C
ERRO
R
2
3
1
2
3
1
BI
-C
OL
OUR
LE
D
PA
SSI
VE
C
RO
SSO
VE
R
LF
1
HF
LF
2
DIG
IT
A
L
AM
P
FU
SE
PO
W
ER
SU
PP
LY
PO
TE
C
TI
O
N
CIR
C
UI
T
L
N
L
N
SC
H
EMA
TI
C
L
IN
E 212 -
'S
P'
AM
PL
IFI
ER
UNI
T
2
DI
GI
TA
L
AM
P
FU
SE
PO
TEC
TI
O
N
CI
RC
UIT