Yamaha 505 Service Manual Page 36

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Page view 35
ABCDEFGH
1
2
3
4
5
6
GX-505/GX-505VCD
(INPUT) Page 64, 65
(OPE) Page 66, 67
(INPUT) Page 64, 65
(MAIN) Page 68
(OPE) Page 66, 67
(OPE) Page 67
(OPE) Page 66, 67
VOLUME LEVEL
CONTROL
GEQ
IC7
INPUT
SWITCH
IC3
MUTE
Q23.24
SPEANA
IC26
MUTE
Q21
PROTECTION
MIC MIXING
D.ECHO
IC800
U800
FL DISPLAY
V800
KEY CONT
SW800-827,829-831
9.0V
-12V
FL
DRIVER
IC803
u5.6V
IC8 49,17,16
CONT
TUCE,TUDO,TUCLK
7
1
5
3
20
SMUTE
5.0V
SUBWOOFER
OUT
IC8 59
HP AMP
IC10
HP,IC8 85
IC8 11
THER
IC11
RY201
18
22
17
14
15
AUX/MD
3
8
MIC1
9
8
4
4
6
2
8
2
8
IC805
IC806
BASS
VR804
MIC VOLUME
VR800
4
6
31
32
36
35
21
28
22
18
Q6,15
Q5,7
12
1
14
5
15
2
11
4
AUX
TUNER
TAPE
CD
13
3
IC8 67
3
5
4
9
1
7
RECA
Q29,309,10
IC8 66
12,13
49
64
24 25 26
5,6
14
35
15
34
13
RECB
4
6
2
8
23 24 19
TREBLE
VR802
AMPMUTE
IC8 24
IC8 90
IPRT
20
|
22
25
26
16-19, 23, 33, 49
CD CONTROL
TUNER CONTROL
16
17
46
ROTARY
ENCODE
SW828
VOL.
REMOCON
32
10
|
13
DATA
CLOCK
LATCH
D803
40,41,427,12
71 - 80,87 - 89,92 - 97
3
DECK CONTROL
Q26
Q218
4 - 8
CDB
(TO CD)
48
47
12
13
12V
+12M
D800 — 802, 805 — 833
-LB
81,82
-12V
Q207
D213
u5.6V
IC8 58
+LB
SPON
+HB
D211
D212
-27V
-HB
Q206
IC8 57
PRON
RY203
T202
F217
F201
32.768MHz
XL401
8MHz
XL402
38 39 3736
(VCD only)
SYSTEM CPU
IC8
+
-
-
+
TE201
SPEAKER
K9V
Q204Q25
HP JACK
JK802
5.0V
15
INIA
INIB
IC8
62,63
POWER AMP
IC201
TUNER
TAPE PB
CD
TAPE REC
IN
OUT
REC
SWITCH
IC5
YMERSION
TONE.CONT.
IC804
11
12
MUTE
Q801
Q802
MUTE
Q201
Q202
86
MIC2
13
JK800
JK801
SW826
VCD only
+12M
12V
-27V5.0V
K9V
50
VPRT
+12M
12V
-12V
-27V
9.0V
K9V
U5.6V
5.0V
13
|
16
1
|
12
14
|
64
32
VP
-27V
LED
DRIVER
IC802
2
3
5
|
16
1
2
58
59
FAC1
FAC2
IC8 15
VPRT
SUBB
D215
T203
IC8 29
ACIN
±HB
±LB
Q33
9.0V
D,SEL
SW2
(R,T)
MIC SW
8
RY201
RY203
61
29
57
58
SPON
PRON
ACIN
85
HPIN
62 6663 67
INIA
INIB
RECA
RECB
(GX-505 only)
90
IPRT
24
59
AMP
MUTE
SMUTE
11
THER
16 17 49
4
D804
SUB
+5V
IC21
17
2
35
RESET
91
VCC
41
|
44
+12V
Q19
RESET
VCC
D11
C103
D21
D22
Q27
IC807
35
17
IC9
BLOCK DIAGRAM
36 37
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