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JVC FS-SD7R Service Manual

JVC FS-SD7R
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Description
of
major
ICs
@
LA4905
(IC301)
:
2ch
BTL
power
IC
1.
Pinlayput
:
O
ONG
TT
2.
Block
diagram
Vec
FS-SD5R/FS-SD7R/FS-SD9R
stBY
(2
a
Standby
SW
Switching
regulator
block
%
Ripple
D.C
(20
filter
Higher
Level
signal
selector
PRE
GND
(2)
Nonlinear/output
stage
Input
amplifier
IN
1
BEEP
amplifier
Power
supply/ground
shorting
BEEP
protection
circuit
Overvoltage/thermal
protection
circuit
Input
amplifier
Nonlinear
amplifier/output
stage
(
)
ON
MUTE
|
ON-TIME
(29
muting
circuit
ie
Pop
noise
prevention
circuit
oO
—_
les)
©)—O-@
SWB
SWE
SW
OUT1
SW
OUT2
SW
GND
+OUT
1
PWR
GND
1
-OUT
1
-OUT
2
PWR
GND
2
+OUT
2

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JVC FS-SD7R Specifications

General IconGeneral
BrandJVC
ModelFS-SD7R
CategoryStereo System
LanguageEnglish

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