Sony SEQ-H3800 - Main Section Schematic Diagrams

SEQ-H3800
4-3,
SCHEMATIC
DIAGRAMS
»
MAIN
Section
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2
ee
4
5
6
7
8
9
10
11
12
13
14
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19
20
21
22
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See
page
30,
31,
32
for
IC
Block
Diagrams.
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Note:
* All capacitors are in uF unless otherwise noted. pF: uw uF 50WV
or less are not indicated except for electrolytics and tantalums.
° All resistors are in ohms, 1/4W or less unless otherwise noted.
« A _ : internal component.
* ~+Gwo- : nonflammable resistor.
-INV G)
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firs ON
(c)INHIBIT A 0 |
et KN
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The components identified by mark /\ or
dotted line with mark A\ are critical for
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TO POWER
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1C103
Safty. M5218 AFP
Replace only with part number specified.
(CN902)
: B+ Line.
e@ eseara B— | ine,
° Voltage are dc with respect to ground under no-signal
conditions.
* no mark: no signal input.
e Voltages are taken with a VOM (input impedance 10 MQ),
Voltage variations may be noted due to normal production
tolerances.
e Signal path
m> :CD o> : MIC
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QI01, 102
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MUTE
C301
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1c201
IC202
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GRAPHIC
EQUALIZER
GRAPHIC EQUALIZER
SURROUND SWITCH | (L-CH) (R-CH)
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—15— —16— —17— — 18 — —19—