Teac CD-P1850, Service Manual

Page: 14 / 16

4 5 2 3 1
C
B
A
SCHEMATIC DIAGRAM
CD-P1850
MAIN PCB (DAC Circuit)
1 st Issue; March 2001
NOTES:
1. Resistor values are in ohms (k=kilo-ohms, M=megohms).
2. Capacitor values are in microfarads (p=picofarads).
3.
£ Parts marked with this sign are safety critical components.
They must always be replaced with identical components-refer
to the appropriate parts list and ensure exact replacement.
注 意
1. 抵抗の単位はΩ（ｋ＝ｋΩ，Ｍ＝ＭΩ）です。
2. コンデンサの単位はμＦ（ｐ＝ｐＦ）です。
3.
£ マークのある部品は安全規格重要部品です。
交換するときは必ずティアック指定の部品を使用してください。
Q503
2SD1936
JK501A
RCA (L)
R521
22K
R515
47
R511
100
+
C525
10/16
Q501
2SD1936
R523
3.3K R525
3.3K
Q504
2SD1936
1
2
3
4
CN501
PH5
JK501B
RCA (R)
R522
22K
R516
47
R512
100
+
C526
10/16
Q502
2SD1936
R524
3.3K R526
3.3K
+
C508
220/10
+
C505
10/16
C511
0.1
C503
0.1
+
C509
10/16
R528
22
R527
22
C510
0.1
C504
0.1
R502
1K
R501
100
R504
100
R503
100
C506
0.1
LRSY
DIN
BCK
16MHz
+5V
GND
+6V
GND
-6V
MUTE
EMPH
+5V(MUTE)
+
C507
1000/10
TO HEADPHNE
C527
100P
C528
100P
DGND
VDD
X501
16.9344MHz
C513
12p
C514
12p
LRCIN
1
DIN
2
BCKIN
3
XTI
5
XTO
6
DGND
7
VCC2R
9
VCC2L
20
VDD
21
CKSL
23
MODE
24
MUTE
25
MD/DM1
26
MC/DM2
27
ML/DSD
28
CLKO
4
DGND
22
VDD
8
AGND2R
10
AGND2L
19
EXT1R
11
EXT2R
12
VOUTR
13
AGND1
14
VCC1
15
VOUTL
16
EXT2L
17
EXT1L
18
IC501
PCM1710
R513
47K
R514
47K
C502
1000P
C512
1000P
C501
0.01
CHASSIS EARTH
(USA ONLY)
(USA ONLY)
(USA ONLY) *
*
*
3
2
1
8
4
IC502A
NJM2068-1
5
6
7
IC502B
NJM2068-2
R505
6.8K
R507
3.9K
R506
6.8K
R508
3.9K
C517
2700P
C518
2700P
C519
330P
C520
330P
R509
12K
R510
12K
+
C515
10/16
+
C516
10/16
+
C523
330/10 C524
0.1
C522
0.1
+
C521
330/10
GND
+8V
LCH
RCH
R529
1M
Q505
DTA124
R530
220
+
C531
47/16
MAIN PCB (DAC Circuit)
COMPACT DISC PLAYER
C CD D--P P118 85 50 0