Kenwood RXD-655 Service Manual page 24

AE AF
DISPLAY SECTION
B
FL701
1G 2G 3G 4G
K1
J1
K2
J2
K3
J3
K4
J4
K5
J5
K6
J6
J8 J7 K7
9G
B
Q708 Q707
IC700
(BOTTOM VIEW)
u-COM
CAUTIONS
Please remove resistors R801-R805,
when replace to IX0450/IX0451(u-COM).
+5V
AG AH
5G 6G 7G 8G
col
K8 K15
L1
K9 K16
L2
K10 K17
L3
K11 K18
L4
K12 K19
L5
K13
K20 L6
K14 K21 L7
L8
K22
10G 11G
Q706-708
GRID
Q706 DRIVER
1
VDD +5V
2 R794 4.7K
C701
-20dB 2
220u10
3
NO USE/DSA STB
4 R701 1K
T-BIAS 4
5 R702 1K
T T1/T2 5
R703 1K
6
REC/PLAY 6
7 R704 1K
RES OUT 7
8 R705 1K
DRF 8
R706 1K
9
WRQ 9
10 R707 1K
RESET
11 C705
X2
15P
XL700
C706
12
X1
18P
13
VPP/IC
14
R708
NC
15 1K
SPN 15
R783
47K
16
VDD +5V
17 R709 1K
CD CLK 17
18 R710 1K
CD DI 18
R711 1K
19
CD DO 19
20 R712 1K
CD CE 20
R713 1K
21
CE 21
R714 1K
22
CLK 22
23 R715 1K
DI 23
R716 1K
24
DO 24
R782
10K
25
AVSS
R717
O/C SW 26
26
/DSA DATA
1K
R749
R788
10K
27 1K
NO USE
27
/DSA ACK/TUN SM
R791 1K
28
SPEANA2 28
R792 1K
29
SPEANA1 29
30 R793 1K
SPEANA0 30
VOLUME
VR701
+5V
+5V
+5V
+12V
AI AJ
B
5.7V
+ 12.2V
5.0V
D707
L700
100uH
RESET R/C SENSOR
RX701
Q700 4.9V
C707
D708
3.3u50
OUT IN
+
GND
36
39
IC561
R570
C565
(1/2) 12K
8 6 2700P
D514
7
29 5
C573
R568 0.022
220K
ZD561
R566
220K
3 C562 R561
1
270P 10K
28 2
D513
4
IC561
(2/2)
OPE AMP
IC562
C571 R579
(1/2)
8 0.022 15K
6
7
5
R576
3 2.2M
C568 R573
1
6800P 56K
30 2
D516
4 IC562
(2/2)
C572
0.022
RD09 RD10 RD11 RD12 RD13 RD14
680 820 1K 1.5K 2.2K 2.7K
31
SW711 SW712 SW713 SW714 SW715 SW716
TUNING TUNING REC MEMORY/
UP DOWN SET
RD04 RD05 RD06 RD07 RD08
680 820 1K 1.5K 2.2K
32
SW705 SW706 SW707 SW708 SW709 SW710
TAPE TUNER CD
RD01 RD02 RD03
680 820 1K
33
SW701 SW702 SW703 SW704
POWER VIDEO REVERSE X-BASS
MODE
AK AL
BI8
9 1 1 WRQ(DSP)
8 2 2 DRF
20 3 3 CD CE
19 4 4 CD DO
18 5 5 CD DI 4
17 6 6 CD CLK
7 7 7 RES OUT
52 8 8 CLAMP SW
26 9 9 O/C SW
BI905
6 6 VF1
B 5 5 -VP
4 4 VF2
47 3 3 AC RLY CONT
+5V 2 2 UN SW 5V
1 1 P-IN
CNS701
21 1 CE
22 2 CLK
23 3 DI
24 4 DO
5 D GND
4 6 T BIAS
5 7 T T1/T2
6 8 REC/PLAY
41 9 SMUTE
10 SPA SIG
1
11 A GND
+12V 12 M+12V
15V 13 -15V
2 14 -20dB
+5V 15 SW 5V
49 16 SP DET
48 17 SP RLY
15 18 SPAN
57 19 NC
61 20 NC
27 21 TUN SM
63 22 RDS-RST
64 23 RDS-RDDA
65 24 RDS-RDCL
66 25 RDS-READY
26 NC
FW701 A FW701 B
RD17 RD18
1 1
10K 18K
2 2
SW720 SW721
3 3
DISC OPEN/
SKIP CLOSE
RD15 RD16
3.9K 5.6K
SW717 SW718 SW719
TIMER CLOCK EQUALIZER
MODE CARRIER
FM 98MHz
AM 1000(999)kHz
RXD-755/655
Y39-4002-70
AM AN
CAUTION: For continued safety,
replace safety critical components
only with manufacturer's recom-
mended parts (refer to parts list).
indicates safety critical compo-
nents. 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 mea-
surements shall be carried out
(exposed parts are acceptably insu-
lated from the supply circuit) before
the appliance is returned to the cus-
tomer.
DOLBY and the double-D symbol
are trademarks of Dolby Laborato-
ries Licensing Corporation. Noise
reduction circuit made under
license from Dolby Laboratories
Licensing Corporation.
The DC voltage is an actual reading
measured with a high impedance
type voltmeter as the AM/FM signal
generator is specified to the condi-
tions as shown in the list below. The
measurement value may vary
depending on the measuring instru-
ments used or on the product. The
value shown in ( ) is actual reading
measured in the AM mode.
MODULATION
ANT INPUT
FREQUENCY DEVIATION
1kHz STEREO 67.5kHz 7.5kHz(Pilot) 60dB
400Hz MONO 30% MOD 60dB
RXD-655/755