VR-2090(K,P) ONLY
B
A
IC27
VR-2080/2090(K) (1/6)
KRF-V7771D/V8881D(M) (1/6)
IC44
C
D615
IC28
ROOM B
E. VOL.
D5
(2/2)
(1/2)
(2/2)
(1/2)
IC43
AMP
AMP
IC28
Rch
ROOM B
Lch
ROOM B
FRch
FLch
(BOTTOM VIEW)
CN7
CN5
KRF-V8881D (X11-38XX-XX)
KRF-V7771D (X11-38XX-XX)
IC43
D6
TONE
CN11
BUFFER
Q609
D606
8.1V
1.6V
1.0V
16.3V
-16.5V
-16.5V
16.3V
-16.5V
16.3V
16.3V
-16.5V
YES
YES
WH601
WH601
NO
WH601
NO
W688
YES
YES
W688
YES
W688
W688
YES
687,688
C608,626,
C608,
C608,
688
688
C608,
W688
NO
W606
NO
YES
W606
W606
NO
NO
W606
NO
YES
NO
687,688
C626,
WH601
18K
R265
100K
10u50
+
8
3
2
+
-
1
R256 11K
R272
C258
R254
C268 100P
R252 120K
C266 100P
R274
17V
17V
17V
17V
+17V
+17V
+17V
+17V
+17V
+17V
17V
17V
17V
17V
17V
17V
17V
17V
17V
2
4
3
1
+17V
17V
+17V
17V
C265
1M
150P
0.01
R268
100P
470K
470K
13-00
13-00
C2
CHINA
C1
CHINA
1
2
3
4
C254
1M
C260
22P
100
2.7K
100P
100P
R271
C257
C259
C253
R343
470K
C340
100P
18K
R625
R623
11K
R344
470K
43K
R320
2.2K
R324
C320
120K
R322
560P
C318 1u50
+
C316
27P
180K
R318
-
+
3
2
4
1
8.2K
R326
+
1u50
C322
470K
C263
100K
R266
R267
R269
+
22u16
4
7
6
5
+
-
22u16
+
R258
C270
R255 11K
R257
100P
R273
R251 120P
+
10u50
17V
+17V
C269
R253 2.7K
C267 100P
100
22P
C251
C252
0.01
C314
+17V
+17V
+17V
+17V
+17V
+17V
+17V
+17V
+17V
CIRCUIT
ANALOG SW
ANALOG SW
680K
R301
0.015
C303
0.068
C301
R305 3.9K
C305 5600P
R345 470K
5/6
X25-A/7
-CN29
COM
COM
DATA
STB
CK
LEVEL SHIFT
20bit SHIFT REGISTER CIRCUIT
VDD
GND
VSS
CODE DETECT
ANALOG SW
ANALOG SW
LADDER RESISTOR
4/6
X11-A/7
-E2
VDD
OUT
IN
NC
A-GND
CS2
STB
DATA
1
2
3
4
5
6
7
8
VSS
NC
CS1
GND
CLK
16
15
14
13
12
11
10
9
B-MUTE
GND
B-Lch OUT
GND
B-Rch OUT
GND
B-Lch IN
GND
B-Rch IN
1
2
3
4
5
6
7
8
9
VOLUME. TONE-DATA
VOLUME. TONE-CLK
TONE-STB
VOLUME-STB
DGND
B-MUTE
-17V
+17V
TONE OUT Lch
GND
TONE IN Lch
GND
TONE IN Rch
GND
TONE OUT Rch
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CN12
IC601
D614
NO
NO
LA1838
A601
CF601,
602
L604-
607
CF603
683
W682,
L72-0531
W02-2622
NO
YES
YES
R672,
673
686
W611,
R653
R625
628
R627,
YES
8.2K
NO
2.2K
15K
8.2K
R623
R614
640,682
R615,
C679,
680
631
C649
3.3K
270
NO
3300P
2.2u50
W656
C670,
671,682
C624
E
C625
NO
390P
YES
270P
B
D
C
A
ABB.
UNIT No.
YES
NO
M2
C2
00-21
NO
DESTINATION
COUNTRY
GENERAL MARKET
CHINA
0.018
C630,
NO
YES
W656
YES
NO
NO
YES
686
W611,
NO
YES
NO
YES
W02-2621
NO
1K
6800P
0.015
0.01
820P
NO
4.7u50
00-01
C1
M1
CHINA
GENERAL MARKET
D614
NO
IC601
LA1838
CN12
602
CF603
CF601,
L72-0531
YES
607
NO
L604-
673
R672,
R653
2.2K
8.2K
R627,
628
R623
3.3K
8.2K
R625
15K
W682,
683
R614
680
C679,
3300P
270
631
C630,
NO
0.018
C649
2.2u50
C625
C624
YES
390P
270P
E
D
C
A
B
YES
C670,
671,682
640,682
R615,
NO
J
ABB.
Y1
00-21
COUNTRY
JAPAN
DESTINATION
PX
UNIT No.
A601
W02-2622
NO
D614
NO
D614
YES
CN12
YES
IC601
A601
W02-2622
LA1837
CF603
602
607
L604-
YES
NO
W611,656,682,
683,686
NO
R653
2.2K
R623
682
R615,640,
11K
YES
R627,
628
4.7K
673
R672,
3.9K
680
C649
C679,
2.2u50
3900P
100
631
C630,
C626,670,
671,682,687
YES
0.033
C624
E
NO
390P
B
C
D
A
NO
C625
150P
R614
K2
ABB.
COUNTRY
U.S.A.
DESTINATION
P2
CANADA
00-11
UNIT No.
CF601,
L72-0596
YES
CN12
LA1837
IC601
W02-2622
A601
L72-0596
CF601,
602
390K
R313
C307 0.018
R307 820
R309 22K
C309 820P
1K
R311
1K
13bit LATCH CIRCUIT
13bit LATCH CIRCUIT
LADDER RESISTOR
LADDER RESISTOR
LADDER RESISTOR
C341
10u50
+
R315 3.9K
R303 16K
R306 3.9K
R308 820
16K
R304
22K
R310
C310 820P
C342
+
10u50
R312
C302
0.068
C304
0.015
680K
R302
390K
R314
5600P
C306
0.018
C308
R316 3.9K
C319 560P
R323 2.2K
C321
1u50
+
8.2K
R325
5
8
6
-
+
7
180K
R317
27P
C315
R319 43K
+
C317 1u50
R321 120K
W606
B
UNIT No.
00-10
K
P1
S-LEVEL
DET
NO
CF603
YES
L604-
607
3900P
680
C679,
NO
683,686
W611,656,682,
3.9K
673
R672,
2.2K
R653
NO
R640
4.7K
628
R627,
18K
R625
YES
682
R615,
100
R614
2.2u50
C649
0.033
631
C630,
150P
C625
390P
C624
NO
671,682,687
C626,670,
YES
NO
D
E
C
A
Lch
GND
Rch
STEREO
SD
9
10
11
12
13
14
15
0.1
15K
R664
C654
1000P
+
15K
0.1
C653
R665
5.6K
R663
10u16
C655
C656
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
3/6
X08-
E3
X
(
)
(
)
(
)
(
)
)
(
)
(
)
(
(
)
K
M
O
Q
S
L
N
P
R
T
Y05-3570-10
KRF-V7771D/V8881D/VR-2080/2090
2SA1123
2SA992
2SC1845
2SC2003
2SC2631
2SC3244
2SC3940A
DTC124ESA
2SA1048
2SC2458
UN5119
UN5219
2SA1586
2SC4081
2SC4116
2SA1535
2SB1370
2SD2061
UN4212
UN4219
2SA1309A
2SC3311A
2SB1375
2SD2012
2SD1757K
NJM4558D
NJM4565D
NJM2058D
TC9184AP
TC74HC4051AP
TC9413P
NJU3713D
SN761200N
NJM4580L
MC14577CF
NJM4565M
NJM4580ED
TC7W04FU
LM2940CT-5.0
DAN202U
UPC7805AHF
DAP202U
DA204K
DA204U
MA142WA
UN5212
SI-3082V
1SS301
TC74HC123AF
TC74HC153AF
TC9162AF
TC9163AF
TC9164AF
TC74HCU04AF
TC9412AP
LC72131
TA7805S
TA79005S
NJM4565L
TC7S04F
LA1837
LA1838
UPC7905AHF
GND
OUTPUT
INPUT
CAUTION: For continued safety, replace safety critical components only with
manufacturer's recommended parts (refer to parts list). indicates safety critical
components. For continued protection against risk of fire, replace only with same
type and rating fuse(s). To reduce the risk of electric shock, leakage-current or
resistance measurements shall be carried out (exposed parts are acceptably
insulated from the supply circuit) before the appliance is returned to the customer.
MODE
CARRIER
MODULATION
ANT INPUT
FREQUENCY
DEVIATION
FM
98MHz
1kHz
STEREO 67.5kHz 7.5kHz(Pilot)
60dB
AM
1000(999)kHz
400Hz
MONO 30% MOD
60dB
The DC voltage is an actual reading measured with a high impedance type
voltmeter as the AM/FM signal generator is specified to the conditions as shown in
the list below. The measurement value may vary depending on the measuring
instruments used or on the product. The value shown in ( ) is actual reading
measured in the AM made.
wd/pcb
98.12.8
21:14
y [ W 8
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299