Schematic Diagram - Pad Switch/Vol Boards - Sony HCD-GX8000 Service Manual

Q Q
3 7 6 3 1 5 1 5 0
7-24. SCHEMATIC DIAGRAM – PAD SWITCH/VOL Boards –
NO605
8P
KEY 0
KEY 1
VOL 1B
VOL 1A
KEY INT DISPLAY
DGND
R750
270
EVER +4V
(Page 43)
SIRCS
D613
1SS133T
S750
-72
R625
47 DISPLAY
C615
47
10V
C614
0.001
TP682
T E
L 1 3 9 4 2 2 9 6 5 1 3
IC603
NJL74H400A
w w w
.
R765 R766 R767 R768 R769
470 680 1k 1.5k 1.5k
S765 S766 S767 S768 S769
S767 S769
S765
DIMMER FM MODE TUNER MEMORY
REPEAT PLAY MODE
S766 S768
SPECTRUM MUSIC EQ
DIRECTION
EDIT
R752 R753 R754 R755
680 1k 1.5k
S752
REMOTE CONTROL
S754
P FILE
RECEIVER
x a o
y
i
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8
R770 R771 R772 R773 R774 R775 R776
2.2k 3.3k 4.7k 6.8k 10k 15k 22k
S770 S771 S772 S773 S774 S775 S776
S773
S771 S774 S775 S776
GROOVE EFFECT ENTER
ON/OFF
S770 S772
GAME EQ
R756 R757 R758 R759 R760 R761
1.5k 2.2k 3.3k 4.7k 6.8k 10k 15k
Q Q
3 7 6 3
S755 S756 S757 S758 S759 S760 S761
-
u 1 6 3
.
45 45
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2 4
9 9 8
CN606 CN607
4P 4P
VOL 1A VOL 1A
VOL 1B VOL 1B
GC DGND GC DGND
KEY 1 KEY 1
R777 R778
33k 68k
S777 S778
S778
SURROUND
S777
MOVIE EQ
R762
22k
1 5 1 5 0 8 9 2 4
S762
+
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : TUNER (FM/AM)
m
c o
HCD-GX8000/RG77
2
9 9
S748
(ROTARY ENCODER)
VOLUME
C751 C752
0.1 0.1
9 8 2 9 9