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7-16. SCHEMATIC DIAGRAM – MAIN Board (4/4) – •
(4/4)
E1
E2
R579
10k
R580
10k
E3
81
82
R588
GEQ
10k
DATA
R583
GEQ CLK
100
83
STK-MUTE
84
STBY-RELAY
R584
TP485
NO-USE
100
86
LINK-RELAY
87
FRONT-RELAY
88
PROTECTOR
89
R488
100
A-SHUT
90
R589
100
B-SHUT
91
R590
100
B-HALF
R591
100
MODEL-IN
DEST-IN
(Page
R593
R492
R493
SW-AD-KEY
1k
0
4.7k
36)
TP437
NO-USE
AVSS
C598
C498
10
SW-RELAY
0.1
50V
VREF
E4
AVCC
NO-
USE
C596
0.1
C502
0.022
FB599
R502
R503
10k
10k
E5
E6
E7
See page 28 for Waveforms.
(Page 34)
R574
10k
R573
FB562
10k
C562
100
10V
R470
100
C564
0.01
A-TRIG
CD-MUTE
R549
100
TBL-SENS
R448
100
BU UP/DOWN-SW
R447
100
CLOSE-SW
R446
100
OPEN-SW
R545
100
LOAD-OUT
R544
100
LOAD-IN
R543
100
XRST
R541
NO-USE
C546
0.001
GC-RESET
R540
100
LD-ON
CLOCK-OUT
TP439
CD-POWER
R537
470
SYSTEM CONTROLLER
CD-CLK
(CD MECHANISM CONTROL)
R536
100
XLT
IC501
R535
470
M30620MCN-A00FP
CD-DATA
R434
470
SENS
R433
100
SQ-CLK
R432
100
SQ-DATA-IN
TXD1
TP431
IIC-
DATA
R509
10k
R513
0
R529
10k
R530
X502
TP530
10k
C510
16MHz
22p
C530
100p
C512
C416
0.1
0.1
R602
D602
C516
FB516
4.7k
1SS355
2200
R575
6.3V
10k
IC601
M62703ML
R603
C603
Q601
47k
0.1
O
I
2SC1623
G
RESET
C601
SWITCH
D603
R604
C602
10
1SS355
47k
0.1
50V
50
R548
49
10k
48
47
46
R546
45
10k
44
43
10k
41
40
38
37
36
C434
35
47p
34
+5V REGULATOR
33
IC911
C433
32
µPC7805A
47p
O
I
G
C432
47p
C912
C911
2200
6.3V
R532
47k
D509
1SS355
D508
1SS355
IC951
µPC3504
+4V REGULATOR
O
I
G
D501
1SS355
C925
C951
470
JW951
10V
IC961
AN7809
+9V REGULATOR
D921
11ES2N
O
I
G
TP514
C962
470
10V
D601
1SS355
C932
470
D502
10V
1SS355
IC101
R601
D505
+10V REGULATOR
M5F7810L
220
1SS355
D503
1SS355
O
I
G
D504
1SS355
RESET SIGNAL
C922
470
GENERATOR
16V
TP516
37
37
(Page 35)
41
29
30
4
73
KEY INT DISPLAY
74
KEY INT POWER
75
Q911
RT1P137L-TP
B+ SWITCH
R919
2.7k
R917
R918
2.2k
2.2k
Q912
FA1A4M
B+ SWITCH
0.1
RR1
C914
0.1
D923
D918
11ES2N
11ES2N
D924
D919
11ES2N
11ES2N
C915
0.1
RR2
C910
RR3
2200
0.1
16V
C916
0.1
D915
D914
11ES2N
11ES2N
D917
D916
84
11ES2N
11ES2N
C917
RR4
C909
0.1
C961
1000
0.1
25V
RR3
RR1
RR2
C918
0.1
RR3
D907
D906
11ES2N
11ES2N
RR4
86
D909
D908
11ES2N
11ES2N
83
C919
C920
0.1
RR4
C921
3300
0.1
25V
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER (FM/AM)
(
) : CD PLAY
HCD-RG66T
CN401
30P
GC-RESET
IIC-CLK
IIC-DATA
SIRCS
POWER LED
D-GND
D-GND
D-GND
D-GND
GC+4V
D+4V
D+4V
EVER+4V
EVER+4V
(Page 43)
EVER+4V
VF(1)
VF(1)
VF(2)
VF(2)
VG
VG
A+10V
A+10V
A+10V
A+10V
SPEANA
SPEANA
SPEANA
CN902
13P
-VG
D-GND
EVER+4V
STBY RELAY
VF(1)
VF(2)
AC4(1)
AC4(2)
AC3(1)
(Page 41)
AC3(2)
LINK RELAY
FAN ON
STK MUTE
CN501
4P
IIC-CLK
IIC-DATA
D-GND
(FOR CHECK)
D+3.3V
[
] : TAPE PLAY (DECK A)
{
} : TAPE PLAY (DECK B)
〈〈
〉〉 : REC
∗
: Impossible to measure
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