Block Diagram - Alpine 3547 Service Manual

Bridgeable power amplifier
Table of Contents

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Block Diagram
Ye,
+B
BUFFER
+B
r
BUFFER
Low pass |}
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AMP
AMP
FILTER
1C101-1
ae
O——
POWER AMP
SPEAKER
Q507, 511
OUTPUT
HIGH PASS
TERMINALS
rea
CLG
GAIN CONTROL
FILTER = ft boo
I
INPUT
VR101- 1
tisssscscoce Tae
taps
OVER LOAD
pe L+
CONNECTOR
:
ay
(2) |.
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Se
ee
ee
'
R@)
INPUT MODE
aa
R+
$102 -1
e
(4) } R-
==
BUFFER
gait
LOW PASS
AMP
FILTER
POWER AMP
cir
Q508, 512
PRE -
Oo
DRIVER
BUFFER FILTER
Ca
ote!
METING
OVER LOAD
-B +B
-B
+B
HIGH PASS
iL+R
Bene
PROTECTOR
GAIN-CONTROL:
17].
RIPTERS..
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1 O-®
<47!5T
VR101-2
.-—==-=-====== 4
FILTER
1O>
jL / MONO
1C103
oie
lo
|
i
1T
INPUT MODE
$102 -2
DC-DC
S
CONVERTER
|—2
Q809,810
ere
DC-DC CONVERTER +B
OVER LOAD
Vec-
Vec+
POWER SUPPLY
PROTECTOR
POWER
POWER
TERMINALS
fei
750%
re
Q803
- 808
GND
aie
PROTECTOR
(4)
SWITCHING
SWITCH
—18—
—17—

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