Yamaha CD-1330 Service Manual page 42

A B C
CD-1330
OPERATION 1/2
1
OPERATION (1)
0.6
2
3
CB101
4
5
6
IC1: DSD1791DBR
24-bit, 192 kHz sampling, advanced segment, audio stereo digital-to-analog converter
PLRCK
Current
Audio V OUT L
PBCK
7 Segment
Data Input
DAC
PDATA I/F V OUT L+
and
I/V Buffer
8
DBCK Oversampling
Advanced
Digital Bias
V COM
DSDL Segment
Filter and
DAC
DSDR and Vref
Modulator
Function
RST
Control
Current
MDI V OUT R+
Function
Segment
Control
MC DAC
V OUT R
I/F
and
MS
I/V Buffer
8
ZEROL
System
Zero
ZEROR Clock
Detect Power Supply
Manager
IC2: OP275GSR
Dual bipolar/JFET, audio operational amplifier
9
OUT A 1 8 V+
DC input (Vin)
-IN A 2 7 OUT B
+IN A 3 6 -IN B
V- 4 5 +IN B
10
★ All voltages are measured with a 10MΩ/V DC electronic voltmeter.
● 電圧は、内部抵抗 10MΩの電圧計で測定したものです。
★ Components having special characteristics are marked
and must be replaced ●
with parts having specifications equal to those originally installed. パーツリストに記載されている部品を使用してください。
★ Schematic diagram is subject to change without notice.
● 本回路図は標準回路図です。改良のため予告なく変更することがございます。
42
D E F
30.3
30.3 5.1
30.3
5.7
0.8
5.7
0
3.4
IC802
3.3
3.4
0
D/S and Filter
PLRCK 1 28 MS
PBCK 2 27 MC
PDATA 3 26 MDI
DBCK 4 25 DSDL
SCK 5 24 DSDR
D/S and Filter
RST 6 23 ZEROL
V 7 22 ZEROR
DD
DGND 8 21 V F
CC
AGNDF 9 20 V L
CC
V R AGNDL
CC 10 19
AGNDR 11 18 V L
OUT
V R 17 V L+
OUT 12 OUT
V R+ 13 16 AGNDC
OUT
V 14 15 V C
COM CC
IC802: TC7SH08F
IC4: PQ033ES3MXP
Low power loss regulator 2-input AND gate
A B Y
IN B 1 5
V CC
3 1 DC output (Vo)
L L L
IN A 2 L H L
IC
H L L
GND 3 4 OUT Y
2
H H H
GND
印のある部品は、安全性確保部品を示しています。部品の交換が必要な場合、
G H I
Page 39
to DIGITAL (1)_CB609
POWER
indicator
OPERATION (3)
D/A CONVERTER
W2
IC1
Page 40 D7
to DIGITAL (1)_CB301
OUT L
0 16.1
3.9
16.1 14.8
0 16.1
0
16.1 3.7
0
-16.2 16.2
0
CB1
Page 43 J3
to OPERATION (4)_CB206
J K
OPERATION (8)
CB161
CB162
USB
M6
0.7
IC2
11.5
0.7
-11.6
0.6
IC2 0
0.6
DIFFERENTIAL AMP.
and L.P.F.
3.9 -11.6
3.7
16.2
4.8
16.2
5.8
4.8
5.8
5.8
0
11.5
16.0
16.2
16.2
16.2
16.2
0
0
-12.9
-12.9 -12.9
-16.2
-16.2 -11.7
L M N
-11.6 -11.6
-11.6 -11.6
L
0
0
-11.6 -11.6
0 0
OUTPUT
0
0
-11.6 -11.6
0 0
R
-11.5 -11.5
-11.6 -11.6
IC4
3.0
0