Kenwood RXD-790 Service Manual page 33

BS BT
R35
3.3K
R91
180K
0V
R37 Q1 R41
2.2K 0V 47K 0.5V
MIC
A MUTE ATT(-6dB)
Q2 Q4
R38 R42
2.2K 0V 47K 0.5V
0V
R92
180K
R36
3.3K
-12V -12V -12V
C167
0.47u50
+
C134
4.7u35
+ -38V
R161
-47.5V
47K
MUTE
0V DRIVE
R166
D6
24 1K
Q50
25
R199
0.4V
100K 4.5V
C168
100u10
26
+
+
C42 2.2u50
+
D32
D33
-38V
C169
0.1
-12V -12V
+12V
23.0V
+23V
+
+
-13.2V
R32
100K
-12V -12V -12V
+23V +23V
+5V
Q63
-12V AVR
+5.6V +5.6V +5.6V
+5V
+12V +12V
+
-32.8V
Q59
-30V -30V -30V
R222
2.2K
1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5
CN19
CN6
O
N
BU BV
46.0V
Q9
45.5V
1.1V
R71
0V
33
C43 R47 Q5 Q7
1/4W
10u50 1K
1.1V 1.1V
+
C47 0V
Q11
-0.5V
47P
Q3
+
C135
Q15
100u63
-1.1V
+
-12V
+
R73
33
1/4W
C48 -0.6V
47P
1.1V
0V C57 22u50
Q6
C44 R48 Q8
10u50 1K
D9
D11
Q10
+
-12V
D10 D12
45.5V
C58 22u50
Q51 46.0V
-45.2V
R74
33
PROTECT 1/4W
-45.7V
R169
Q53
10K -1.1V
0V
47.7V
47.7V
R39
68K
Q52
0V
-0.5V
+ Q12
+
Q54 Q55
Q14
0V
R72
33 1/4W
1.1V
C144 C143
3900u63 3900u63
+38V +38V +38V
+ +
-38V -38V -38V -38V
+5.6V
-12V
+23V
P4
E4
WH2
12.3V 1
+12V +12V +12V
2
+23V +23V +23V
3
+12V
4
+23V + ~
5
+ - ~
6
+5.6V
D20
7
(X09- ) (C/5)
+
R177 R186 R187
10 4.7K 680 2W
-38V
-33.3V
R188
680 2W
-26V
Q60
C152
4.7u35
C147 +
47u10 R193
+
1.5K 1/4W
+5.6V
+
R191 R200 WH1
1.5K 1/4W 10 1 1
-B
-B -B
1/4W 2 2
-45.8V
-32.3V -46.3V 3 3
-B
Q61
4 4
5 5
6 6
-30V AVR +23V +23V
7 7
0V
8 8
R224 -38V -38V
+23V
0.7V Q22 9 9
2.2K 2W
10 10
POWER
ON/OFF
11 11
12 12
+38V +38V
E1 E2
RECORDING LINE
SIGNAL LINE
GND LINE
+B LINE
+B
-B LINE
-B
BW BX
R221
D39
4.7K
+5.6V
C98
0.1
47.7V
Q13
47.7V
LIMITER
0V
Q17
0V
R79 C59
3.9K 0.12
0V
0V
K2
0.7V
Q19
-47.5V
Q13~16
FINAL TR.
FRONT
SP.
Q16
RELAY
DRIVER
0V
R216 10K
-4.1V
-12.6V
0V
R80 C60
3.9K 0.12
0V 0V
0V Q21
Q20
LIMITER
0V
VOLTAGE
Q18
LIMITER
47.7V
+38V +38V
-38V
+5.6V +5.6V
+23V +23V
P2
-B -B
R194
+23V
K1
220 2W E6
6
DOLBY ON
5
4
0.7V
R195 Q62
2.2K
3
RELAY
2
DRIVER
1
SP GND
POWER
TRANSFORMER
47.7V D28
X
F8
+38V + ~
CN22 CN23
-38V - ~
X
F9
-47.5V
CN24 CN25
X
F1
R225 R213
100 2W 120
K3 CN8 CN9
2W
X
F2
CN10 CN11
22.2V
R226
Q23
2.2K
RELAY
DRIVER
X
F3
AC19.7V CN12 CN13
AC5.1V
RXD-V890 ONLY
(X32- ) (B/2)
WH2
3
2
F6
T1A 250V
1
E3
I
CN11 CN10
BY BZ
D1-6,9,10,13-15,21,22, IC1 : NJU7313AL
24,32-44 : 1SS131 or IC2-4,6,10 : NJM4565D-D
HSS104A IC5 : LC75393E
P3
D7 : MTZJ5.1(B) or IC7 : M65844P
UZ-5.1BSB IC8 : BU4066BC or
D8 : MTZJ11(B) or TC4066BP
UZ-11BSB IC9 : TA78057S
: MTZJ24(B) or
D11,12
UZ-24BSB Q1,2 : 2SC2878(B)
Q3,4,19,20,22,23,57,58,62
D16 : MTZJ6.2(B) or
PHONES
V
UZ-6.2BSB : 2SC1740S(Q,R) or
D17,23 : MTZJ5.6(B) or 2SC2785(F,E)
UZ-5.6BSB Q5-8,17,18,54,55 : 2SC2389S(S,E) or
D18,19 : MTZJ16(B) or 2SC1845(F,E)
UZ-16BSB Q9,10,51-53 : 2SA992(F,E)
J5 Q11,12 : 2SC4137F50(V,W)
D20 : D5SBA20F03 or
Q13,14 : 2SD2389
RBV-602LFA
Q15,16 : 2SB1559
D25-27 : S5688B or
Q21,50,59 : 2SA933AS(Q,R) or
1SR139-400
2SA1175(F,E)
D28 : D3SBA20F03 or
RBV-402LFA Q56 : 2SD1893
D29,30 : MTZJ4,7(B) or Q60,63 : 2SB1370 or
UZ-4.7BSB 2SB1375
D31 : MTZJ13(B) or Q61 : 2SD2061 or
UZ-13BSB 2SD2012
RXD-790 (X09-4720-XX)
J6
DESTINATION
+ UNIT No. A F1,2 F3 F5 F7
COUNTRY ABB.
Lch
U.S.A. K 0-11 NO 6A 125V 4A 125V 5A 125V YES 8A 125V
GENERAL MARKET M
0-20 YES
FRONT
MALAYSIA I
T4AL 250V T2.5AL 250V T2AL 250V NO T4AL 250V
SPEAKERS AUSTRALIA X 0-71
NO
KOREA H 4-11
Rch
RXD-V890 (X09-4XXX-XX)
+
DESTINATION
UNIT No. A F1,2 F3 F5 F7
COUNTRY ABB.
GENERAL MARKET M
720-20 T4AL 250V T2.5AL 250V T2AL 250V T4AL 250V
MALAYSIA I YES NO
SHANGHAI V 822-10 T4A 250V T2.5A 250V NO T4A 250V
(X09- ) (B/5)
C139 47u16
+
12V AVR Q56
WH2
1
11.8V
+12V +12V
2
+23V
3
+12V +12V
4
R189 1K 2W
12.9V
5 C164
R190 1K 2W
6 100P
12V ON/OFF
+5.6V
5.6V AVR
7 5.5V
Q58
4.9V R209
22.0V
IC9
E5
100
Q57
OUT IN
+23V
+
4.9V
GND
4.9V
+23V +23V
X08-CN1
7/8
P
(K) TYPE
(X09- ) (D/5)
R198 WH4
3.3M
1/2W
CN7
F5
1 X14-A/2
5A 125V
W3
-E7
2
CN16 CN17 AC120V
60Hz
8/8
WH3
O
(X,H,V) TYPE
(X09- ) (D/5)
X08-E2
CN7
7/8
1
W8 W3
2
K
(V)
AC220V 50Hz
(X)
AC240V 50Hz
(H) X08-E1
AC220V 60Hz
7/8
(M,I) TYPE
(X09- ) (D/5)
L
CN7
AC110-120V/
1
220-240V
CN14 CN15
50/60Hz X14-A/2
2
(X09- ) (E/5) -E3
F4
T3.15AL 250V
S2 8/8
WH7
WH8
WH6 M
X F5
WH5
X14-A/2
-E4
CN16 CN17
8/8
N
RXD-790/V890(K) (5/8)
RXD-790/V860/V890
Y39-2600-20
CA CB
W180,193, CN20,
F8,9 W67
195 21
NO NO YES
YES
YES NO
NO
W67,180, CN20,
F8,9
193,195 21
YES NO
+23V
R192
D36
100
0V
R184
10K
+
CAUTION: For continued safety, replace safety
critical components only with manufacturer's
recommended parts (refer to parts list). indi-
cates 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 resis-
tance measurements shall be carried out
(exposed parts are acceptably insulated from
the supply circuit) before the appliance is
returned to the customer.
The DC voltage is an actual reading measured
with a high impedance type voltmeter as the
AM/FM signal generator is specified to the con-
ditions as shown in the list below. The mea-
surement value may vary depending on the
measuring instruments used or on the product.
The value shown in ( ) is actual reading mea-
sured in the AM made.