Kenwood RXD-790 Service Manual page 35

CM CN
R35
3.3K
R91
180K
+ C35
Q1
R37
0.015 3.3K
4.3V
A MUTE ATT(-6dB)
R38
Q2
3.3K
VOLUME
R92
0~80:4.3V
180K
81~86:0V
17
R36
4.3V
3.3K
C73
10u50
18
+ -12V
4.3V MUTE ON:1.9V
C167
OFF:0V
C39
0.47u50
19 1u50
4.3V
+
+
C134
4.7u35
20
+
R161
C41
47K
21 3.3u50
+ MUTE
4.3V 22
DRIVE
23
R131 1K 3.2V
CLK 24 Q50
R132 1K R199
DATA 25
100K
4.6V
CE 26
C168
100u10
+
+
27
36.6V
4.3V 5.0V
28 C42 3.3u50
+
29
C40
D32
1u50 VOLUME
30
0~80:5.0V
+
81~86:0V
4.3V
D33
4.3V
4.3V C74
10u50
31 MUTE
ON:0V
+
C169
OFF:4.9V
32
0.1
4.3V
12.3V
+
C36
+
4.3V 0.015
R32
100K -12V
-12.7V
-12V AVR
-12V
+5.6V +5.6V
+5V
+
+12V +12V
SPEANA
IN
-29.4V
-30V -30V -30V
1 2 3 4 5 6 7 8 9 10 11 12 13
CN6
N
CO CP
Q9
1.1V
35.4V
C43 R47 Q5 Q7
4.7u50 1K
+
C47 -0.6V
0V 0V
-0.5V
47P
Q3
R41
47K
+
C135
100u63
+
R42 +
Q4 -1.1V
47K -12.7V
C48
47P
-0.6V
Q6
0V 0V
C44 R48 Q8
4.7u50 1K
Q10
+
-12V
35.4V
Q51
+38V
-35.5V
PROTECT
-1.1V
R169
Q53
10K
0V
R166 37.5V
D6
1K
37.5V
R39
68K
Q52
+
+
-0.5V
Q54 Q55
1.1V
37.5V
+38V
-38V -38V -38V
(X09- ) (B/5)
C143 C144
3900u63 3900u63
+ +
WH2
1 1
+12V +12V +12V
2 2
+23V +23V +23V +23V
3 3
4 4
23.0V
+23V + ~
5 5
+
- ~
6 6
+5.6V +5.6V
D20
7 7
E4 E5
+
AC
-13.2V -37.3V
19.7V
R177 R186 R187
10 2.2K 1K 2W
-38V
-13.2V
R188
1K 2W
Q60 -25.7V
C152
4.7u35
+
R193
(X09- ) (C/5)
1.5K 1/4W
+5.6V
-B
14.8V
-15.0V +
-30.0V
+
R191
WH1
1.5K 1/4W W132 1 1
-B
Q59
2 2
3 3
Q61
-36.5V
-B
4 4
5 5
6 6
-30V AVR
+23V +23V
7 7
8 8
-38V -38V
9 9
10 10
11 11
12 12
+38V +38V
E1 E2
CQ CR
X
W6 R89
12K
+38V
Q13 LIMITER
R71
33
Q17
1/4W
0V
R79 C59
3.9K 0.12
0V
Q11
0V
Q15
R73
33
1/4W
C57 22u50
S1
D11
-38V
D12
Q13~16 ON
C58 22u50
FINAL TR.
OFF
Q16
R74 SURROUND
33
1/4W
0V
R80 C60
Q12
3.9K 0.12
0V
Q14
0V
LIMITER
R72
33
1/4W Q18
+38V +38V
-38V
C139 47u16
+
12V AVR Q56
+12V +12V +23V
Q1,2
12.3V
Q3,4,57,58,62
23.0V
5.7V
R189 1K 2W Q5-8,17,18,54,55
13.4V
C164
R190 1K 2W R192
D36
100P 100
Q9,10,51-53
12V ON/OFF
5.6V AVR
5.6V Q11,12
6.2V
R209 Q58 R184
Q13,14
IC9 10K
100
Q57 Q15,16
OUT IN
5.6V
+ +
Q50,59
GND
Q56
Q60
+23V +23V +23V
Q61
STANDBY:24.0V
POWER ON:0V
-B
R194 13.3V K1 R200 W191 -36.5V
220 2W 10 1/4W
+13V
23.0V
RELAY
DRIVER
R195
POWER ON
2.2K
:4.9V
Q62
POWER
TRANSFORMER
D28
X
F1
+ ~
CN8 CN9
- ~
X
F2
CN10 CN11
X
F3
AC19.7V CN12 CN13
AC5.1V
(X32- ) (B/2)
WH2
3
2
I F6
T1A 250V
1
E3
CN11 CN10
CS CT
P3
CAUTION: For continued safety, replace safety critical components only with
manufacturer's recommended parts (refer to parts list).
ical components. For continued protection against risk of fire, replace only
PHONES
V
with same type and rating fuse(s). To reduce the risk of electric shock, leak-
age-current or resistance measurements shall be carried out (exposed parts
are acceptably insulated from the supply circuit) before the appliance is
J5 returned to the customer.
J6
+
L
The DC voltage is an actual reading measured with a high impedance type
- FRONT
SPEAKERS voltmeter as the AM/FM signal generator is specified to the conditions as
(6-16 Ω )
-
shown in the list below. The measurement value may vary depending on the
R
+ measuring instruments used or on the product. The value shown in ( ) is
actual reading measured in the AM made.
+
L
-
SURROUND
SPEAKERS
(6-16 Ω )
-
R
+
TC74HC166AP
D1-6,9,10,13-15,
21,22,24,32~38 : 1SS131 or
HSS104A
D7 : MTZJ5.1(B) or
UZ-5.1BSB
D8 : MTZJ11(B) or UZ-11BSB
D11,12 : MTZJ24(B) or UZ-24BSB
UZ-24BSB
D16 : MTZJ6.2(B) or
UZ-6.2BSB
D17,23 : MTZJ5.6(B) or
UZ-5.6BSB
D18,19 : MTZJ16(B) or NJU3713D
UZ-16BSB
D20,28 : D3SBA20F03 or
RBV402LFA
D25-27 : S5688B or
1SR139-400
D29,30 : MTZJ4,7(B) or
UZ-4.7BSB
D31 : MTZJ13(B) or
UZ-13BSB
: 2SC2878(B) IC1 : NJU7313AL
: 2SC1740S(Q,R) or IC2-4,6,10 : NJM4565D-D
2SC2785(F,E) IC5 : LC75393E
: 2SC1845(F,E) or IC7 : M65844P
IC8 : BU4066BC
2SC2389S(S,E)
IC9 : TA78057S
: 2SA992(F,E)
: 2SC4137F50(V,W)
: 2SD2389
: 2SB1559
: 2SA933AS(Q,R) or
2SA1175(F,E)
: 2SD1893
: 2SB1640 or
2SB1417(P)
: 2SD2061 or
2SD2012
(X09-4832-10)
(V) TYPE
(D/5)
CN7
1
W7 W2
2
(V)
AC220V 50Hz
LC72131
(M,I) TYPE
(X09-4880-20) (D/5)
CN7
AC110-120V/
1
220-240V
CN14 CN15
50/60Hz
2
X14-A/2
(X09- ) (E/5)
F4
-E3
T2AL 250V
S2
WH7
8/8
WH8
WH6
M
F5
T2AL 250V
WH5
CN16 CN17 X14-A/2
-E4
8/8
RXD-V860(M)(6/8)
N
RXD-790/V860/V890
Y39-2600-20
CU CV
indicates safety crit-
TA8409S
NJU3714D
BA3126N BA10393
NJU3711D BA3834S
NJU3714G LC7536
CXD2500BQ
CXD2509Q