Teac RW-800 Service Manual page 26

SCHEMATIC DIAGRAM
1 2
J173
A MIC R 4
GND
3
GND 2
MIC L
1
AGND
6
J171
5
MICJACK SW
4 W171
2 1 2 1
C172
1
47/25V
C171
470P
W172
AGND
C170
L/MONO
0.1
AGND
MIC INPUT
GNDS
W173
R
B
J271 6
MICJACK SW 5
4
2 1 2 1
W271
C272
1
47/25V
C271
470P
W272
C270
AGND
0.1
AGND
GNDS
C
PCB,VR
INPUT LEVEL
VR121A
22KA
1 3
1 3
VR121B
22KA
D
E
INSTRUCTIONS FOR SERVICE PERSONNEL
BEFORE RETURNING APPLIANCE TO THE CUSTOMER, MAKE LEAKAGE-
CURRENT OR RESISTANCE MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT.
RW-800
MIC/HP PCB, VR PCB, DIGITAL I/O PCB
3
+BVA
R175
1 2
C176
C178
R174
2 1
0.1
100/25V
47K
1 2
C175
C174
47/25V
2 10P
R171 1 1 2
2 1 2 3
U171A
NJM4580
100 R173 2 AGND
R172 470
VR171 C177
C179
47K
10KA
100/25V
0.1
AGND
AGND
C173
1 2
100/10V
R176
AGND
10
-BVA
R274
2 1
47K
1 2
C274
C275
10P
47/25V
6 L
R271 7 1 2
MIC LEVEL
2 1 2 5
U171B
NJM4580 R
100 2
R273
470
R272
VR271
47K 10KA
AGND
C273
AGND
100/10V
AGND
J402
COAX RX
J122
BIN6P
OPT TX
1
VRIN L
OPT RX
2
VROUT L GND
3
GND +5V
4
GND CN5
C412
5
VROUT R 47P
6
VRIN R
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.
4 5
P191
CN6
D191
1SS133
10
D192
1SS133
VR181A
22KA
1 2
S192
1 2 3 4
TACT
2
S191
SW1-3
AGND
VR181B
22KA
TIMER SW POWER SW
2
L
PHONE LEVEL
AGND
R
PCB,MIC/HP
R402
47K
1 2
R403
3.3K
5 1 2 8 9 1 2
R401
4
100
U401D
1
3
R404
3 74HCU04
(U401)
2.2K
2 +5V VCC U401F
1 U401A
1 1 1 1 1 2
1
C411
2
0.1
U402
2 2 2 2 U401B
EMI
3 4 1 3
C401 C402
0.1
10/50V
GND GND 2
(U401) U401C
5 6
GND
PCB,DIGITAL I/O
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。
6 7
U181A
R185 +BVA
M5216 C184
10
100/25V
1 2
R183 C182
1.5K 0.1
1 2
C181
2 AGND AGND
47/25V
1 1 2 1 2
2 1 3
R184 L181
43 1uH
R181 R182
100K 1K 2
AGND
0.1 R186 3
1 2 1
10
AGND AGND
R283 C185 C183 J181
100/25V TRS
1.5K
W181
1 2
-BVA
C281
6
47/25V
7 1 2 1 2 GNDS
2 1 5
R284 L281 C180
U181B 43 1uH 0.1
M5216
R281 R282
100K 1K
AGND
AGND AGND +BVA
AGND
-BVA
J182
R405 C403
47K
33/25V
1 2
1 2 J401A
L401
HSP-252V3
FB
10 11 1 2 1 2 1 2 1
COAXIAL IN
R406
2
C404
R407 2
2 2.2K
U401E 0.1
1 2
75
1
1
L402
GND
FB
GND
GND
J401B
C405 L403
T401
HSP-252V3
33/25V
TC-1027-04 FB
1 2 1 6 1 2 1 2 3
COAXIAL OUT
R408
2
75
4 5
1 2 3 4 1 2
L404 1 2
C406 C408
FB
0.1 0.1
1 2 C407
GNDS
0.1
GND GNDS
L406
+5V
U403
47uH
1 2 1
2
OPTICAL IN
1 3
C409
0.1
GP1F32R
2
GND
U404
1
2
OPTICAL OUT
+5V 3
CF1F32T
1
C410
0.1
2
GND
8
HEADPHONE
R R W W - - 8 8 0 0 0 0
CD Rewritable Deck
1 st Issue; June 2000