Yamaha RX-397, Service Manual

Page: 29 / 41

A B C D E F G H
1
2
3
4
5
6
I J K
7
8
RX-397
29
■
SCHEMATIC DIAGRAM (FUNCTION)
* All voltages are measured with a 10M
Ω
/V DC electronic volt meter.
* Components having special characteristics are marked
Z
and
must be replaced with parts having specifications equal to
those originally installed.
* Schematic diagram is subject to change without notice.
IC501: NJU7313AM
Analog Function Switch
13 NC 18 NC
2
3
4
5
6
7
8
9
10
11
12
14
30
1
29
28
27
26
25
24
23
22
21
20
19
17
15
CONTROL
LEVEL
SHIFTER
LA
TCH
LEVEL
SHIFTER
LA
TCH
L1
L2
L3
L4
L-COM1
L5
L6
L-COM2
L7
L8
L-COM3
ST
VDD
VEE
R1
R2
R3
R4
R-COM1
R5
R6
R-COM2
R7
R8
R-COM3
DATA
CK
VSS
16
0
0
0
0
0
0 0
10.1 5.4 5.4
5.4
5.4
4.8
4.8 4.8
5.2 11.9
11.9 14.5
12.3
12.3
5.6
5.6
4.8
4.2
0.1
0.1
4.8
4.7
4.7
4.7 4.7
4.7
4.7
4.7
0
4.6
4.7
0
0
0
0
0
0
0
0
0
0
4.7
4.7 4.7 4.7 4.8 4.7
4.7
2.3 2.2 0
0
0
0 0 0 0 0
0
0
4.7 4.7 4.7 4.7 4.7 4.7
4.7
4.8 4.8 4.4 4.6
0 0 0 0 0
0
0
4.7
4.7
4.7
4.7
4.7
-14.4
4.8
4.8
4.8
4.8
0
1.6
1.8
1.7
1.7
0.9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0 0
0
0
-0.6
-0.6
14.2
-14.5
1
TAPE
REC OUT
T
O
OPERA
TION (2) CB407
P
age 30 A-2
T
O
OPERA
TION (2) CB401
P
age 30 A-3
TO MAIN (1) W103
Page 31 C-2
TO OPERATION (1) CB801
Page 30 A-7
TO OPERATION (13) CB301
Page 30 J-6
CD/DVD
AUX
MD IN
MD OUT
TAPE PB
IC603 : LC72722PM
RDS Decoder
+
REFERENCE
VOLTAGE
57kHz
bpf
(SCF)
CCB
TEST
PLL
(57kHz)
ANTIALIASING
FILTER
SMOOTHING
FILTER
RAM
(24 BLOCK DATA)
ERROR CORRECTION
(SOFT DECISION)
SYNC/EC
CONTROLLER
SYNC
DETECT-1
DATA
DECODER
CLOCK
RECOVERY
(1187.5Hz)
MEMORY
CONTROL
OSC/DIVIDER
VREF
CLK(4.332MHz)
SYNC
DETECT-2
VDDA
VSSD
VDDD
RDS-ID
SYNC
SYR
VSSA
MPX IN
DO
CL
DI
CE
T1
T2
T3
T4
T5 T6 T7
X IN
VREF FL OUT C IN
X OUT
3 14
15
19
18
24
1 5 6
4
2
20
21
22
23
7
8
9
10
11 16 17 13 12
Point
q
(Pin 13 of IC602)