Block Diagram - Display/Key Control Section - Sony XR-C8220R Service Manual

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3 7 6 3 1 5 1 5 0
7-4. BLOCK DIAGRAM – DISPLAY/KEY CONTROL Section –
BALANCE/FADER CONTROL
LSW900 – 918,
D510
S900, SW801
J500
REMOTE IN
D506
48 72 46 47
93 92 73 74
X601
X600
32.768kHz
3.68MHz
T E
L 1 3 9 4 2 2 9 6 5 1 3
05
w w w
.
RE900
VOLUME/BASS/TREBLE/
ROTARY
ENCODER
RE900
KEY ACTIVE
SWITCH BACKUP +5V
Q510, 511
36 37 76 35
SYSTEM CONTROLLER
IC600 (4/5)
13 14 16 32
LSW900, 901, 903,
LSW904, 906 – 910,
LSW912 – 918
R952
OSC
21 20 18 17 19 14
LIQUID CRYSTAL DISPLAY DRIVER
IC900
SEG101 – SEG165
26 – 90
LIQUID CRYSTAL DISPLAY
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(TAPE WINDOW)
LED800, 802
BUZZER
SW500 BZ600
DRIVE
(NOSE DETECT) (BUZZER)
Q601
80 15
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3 7 6 3
LED900 – 907,
LSW902, 905, 911
LED DRIVE LED DRIVE
Q901 Q900
Q902
Q903
2 1
VLC0 – VLC5
COM100 – COM107
100 – 93
LCD900
u 1 6 3
.
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9 9 8
LED800
LED802
6
LED801
TIR
LED DRIVE LED DRIVE
Q501 Q502
59 31
41
P-ON +10V
LCD +10V
1 5 1 5 0 8 9 2 4
CONTRAST
SWITCHING LCD +10V
Q508, 509
11 – 6
m
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– 30 –
XR-C8220R
2
9 9
9 8 2 9 9