Kenwood KRF-V7771D, Руководство по обслуживанию

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A B D F H J C E G I
2
1
3
5
7
4
6
USED (M,Y,C) TYPE
(X11-3800-XX) (C/7)
TUNER UNIT
IC603
(X11-3813-00) (C/7)
IC601
IC602
(J) TYPE
(K,P,Y,M,C) TYPE
A601 (W02-2621-05)
A601 (W02-2622-05)
: D615 U1BC44
IC44
TC9413P : IC27
NJM4565D : IC28,43
AM
GND
FM 75
1SS302
DA204U or : D5,6
TC9184AP :
ADJ
HSS104
D612
C
Q607
Q606
CN12
AM RF
DISTORTION (ST)
D613
: D605 RD2.7ES(B2) or
: D609 RD3.3ES(B2) or
: D604 RD5.1ES(B2) or
1SS133 or : D612
MA111 : D607,608,610,611,613,614
RD8.2ES(B2) or : D603,606
DA204K : D601
2SD1757K : Q610,611
2SA1576A(R,S) or : Q602,612,614,615
2SC4081(R,S) or : Q601,603,604,606-609
MC13028AM : IC603
LC72131 : IC602
: IC601
D605
D611
MPX FILTER
FM DET MPX
75uS
FM:100kHz
CH SPACE DE-EMPHASIS
S601
A
HZS3.3N(B2)
HZS2.7N(B2)
HZS5.1N(B2)
HZS8.2N(B2)
2SA1586(Y,GR)
2SC4116(Y,GR)
50uS
AM:9kHz
FM:50kHz
AM:10kHz
FM AMP
Q602
D607
DECODER
AM STEREO
D603
D608
E
Q615
AM +B
T. MUTE
DRIVE
Q612
Q611
Q610
D609
D614
MUTE
AM SYSTEM
FM, MPX
Q614
FM +B
D604
D
Q608
PLL
B
50uS: OFF
75uS: ON
EMPHASIS
FM
TUNED
Q604
Q603
Q601
FM FRONT-END
FM FRONT-END
J601
MIX
TR1
RF AMP
D2
FET
D4 D1
DISTORTION (ST)
OSC
BUFFER
OSC TR2
D3
FET
TR1
: 2SC2714
: 2SK302
TR2,3
D1-3 : 2SC2413
: HVU202 or
1T363
1SS356
: HSU277 or D4
TR3
MIX
TR1
RF AMP
D2
FET
D1
OSC
BUFFER
OSC TR2
D601
D3
FET
TR1
: 2SC2714
: 2SK302
TR2,3
D1-3 : 2SC2413
: HVU202 or
1T362
TR3
1.6V
8.1V
1.6V 1.0V 1.0V 1.0V 0.5V 1.6V
0.4V
1.0V 0.3V 1.0V
0V 0V
1.0V 1.3V
2.5V
4.1V 1.0V 0V
1.0V
2.5V
5.2V
0V
(2.5V)
0V
0V
10.1V (10.3V)
0V (11.6V)
6.7V
6.9V
2.6V 4.3V
[0.7]
[0V] [0V]
[0V]
11.4V
11.2V
10.7V
1.0V
8.1V
1.6V
15.0V
3.5V
2.9V
3.7V
8.0V
4.3V
1.6V
6.9V
1.1V
6.3V
(0V)
0V
5.0V
0V
[0V]
3.7V
-2.4V
-2.4V
0V 0V
-2.4V
0V
[2.7V]
[3.5V]
[3.5V]
[0.7]
+B LINE
(1.0V)
(0V)
(0V)
0V
0V
50uS
[75uS]
11.5V
11.3V
10.7V
1.7V
0.2V
0V
0V
[0.6V]
[0V]
[0V]
(6.9V)
(0.1V)
(4.3V)
0V (0V) 0V (0V) 0V (0V)
(2.6V)
(3.0V)
(0V)
(0V)
(5.2V)
(1.0V) (3.0V)
(2.5V)
3.6V (3.6V) 3.6V (3.6V)
(3.6V)
3.6V
2.9V
(2.9V)
3.3V (3.3V)
(4.3V)
4.3V
4.3V (4.3V)
(4.3V)
4.3V 3.3V (3.3V)
3.5V (0.4V)
0V
(1.4V)
0V
(1.2V)
3.6V (3.6V) 2.1V (2.0V)
6.9V
(3.6V)
4.3V
(0V)
8.0V
(8.0V)
6.9V (6.9V)
0.5V (0.5V)
0V
(2.8V) 1.2V (1.2V)
8.0V (8.0V)
0V
(4.9)
0V (0V)
3.6V (3.6V) 3.6V (3.6V)
(8.0V)
8.0V
(3.6V)
3.6V
+B LINE
1000P
C687
C688
100P
0.022
C684
R687
1M
C686
470P
1/4W
C685 0.022
R685 1M
R688
56K
C602 0.01
1M
R686
W662
+17V
2200P
R639
10K
R637
3.9K
R636
100
100
R635
R680
1K
R640
100K
+
C632 10u16
1K
R638
3.3K
C680
C679
VREF T.METER
1 2
0.047
R606
R633
R627 R628
R634
R623
R614
R608
33
-B
R673
R672
W681
1K
1K
6
4
C671
8200P
C682 0.01
W683
L607
L606
W682
C670
8200P
3.3K
R603
L605 (WHT) L604 (GRN)
2.7K
R682 R615 33K
0.022
220
R602
R610 680
R609 330
0.01
C606
R611
C605
0.01
220
R605 3.3K
R601
+
C673 47u16
+
C672 1u50
+
+
C665 10u10
18K
C663 0.47 R670
C666 10u10
0.01
C662
+
10u10
C664
8 7
QUALITY
SIGNAL
4 3 5 6
AM STEREO
PILOT
DETECTOR
DETECTOR
1 2
IF
AMP
1/8 VCO
11
10
9
14 13 12 16 15
1W
C608 0.01
R681
150
+
C607 47u16
W611
R676
1.8K
4.7K
R675
8.2K
820
12K
R660 1.2K
R674
47K
R677
R678
5
3
W686
W656
R661
C618
+B
0.022
C601
E601
3
4
1
2
VCC
220
R643
R655 10K
C650 100P C651 470P R657
1K
C652 100P
R656
1K
1/4W
C647
R650
470
R652 100
5.6K
R651
R654
1K
R653
C678
+
C649
1000P
+
C646 10u16
+
C648 47u16
5.6K
R662
C657 2200P
R666 9.1K
C658
R667 9.1K
R669
680K
DETECTOR
R671
220
C669 0.22
0.47u50
10u16
47
+
R668
X602
47u16
C659
C661 33P C660 10P
AGC
+ +
C667 C668
UNIVERSAL COUNTER
16 17 18 19 20
UNLOCK
PHASE DETECTOR
CHARGE PUMP
POWER
11
9
10
8 7 6
DATA SHIFT REGISTER LATCH
RESET
DETECTOR
ON
1/16,1/17 4bits
SWALLOW COUNTER
14 22
2
5 4 1 2 3
REFERENCE
DIVIDER
C B I/F
21
C640 2P
L609
10uH
22P
C641 C639
6P
C676
47P
R683 1K
+
C610 47u16 C611 0.047
L603
C681
1
8.2K
+
1u50
C617
R619
+
C616
0.47u50
R618
3K
R620
1u50
C615
+
C645 22P
R617 3.9K
C613
+
C614 10u16
CF603
R616
22
C612 0.047
12 13 15
1/2
DIVIDER
12bits PROGRAMABLE
12K
R658
R659
1.2K
C643 22P C642
27P
X601
7.2MHz
C644
470P R645 1K
R646 1K
R647 1K
R648 1K
R649 10K
+
C628 2.2u35
+
C629 2.2u35
10K
VR601
C625
C627
10u25
+
C623 10u16
C624 C626
0.022
R625
+
C621 3.3u35 C622 0.047
+
C619 33u10 C620 0.047
47P
16 17 18
8 19K
FF
DET
PILOT
19 20
STEREO
SW
21
P-DET
ANTI-BIRDIE
DECODER
FF
19K
2
FF VCO
304KHz 38K
22 23 24 25
DET
MUTE
14 15 13
11
10 12
9
STEREO
DRIVE
7 6 8
VCC
26 27
AGC
AM
28
REG
MIX
AM
RF.AMP
AM IF
AM
COMP
SD
29 30
ALC
BUFF
OSC
AM
5
GND
4 3
IF-BUFF
DET
FM
S-METER
FM IF
2
1
S-CURVE
AM/FM
+
C637
10u10
+
C638
10u10
C630
C631
R631
47K
R630
560
0.012
C633
C634
0.012
C636 0.01
R642
10K
L601
100K
R641
C675
4P
1/4W
100
R612
CF602
CF601
R604 680
820
R607
33
C603
0.01
100
R644
270
5
0.1 C8
IFT
VT
6 VCC
0.1
33K
R4
C4 R2
R3
27P
C7
680
R13
5P
L4
L5
R5
C5
C19
R14
68
C9
0.1
180P
1000P
470K- 1.2M
C3 3-10P
C6 4P
C2
R1
15P
L2
L1
180P
C1
C18
3-10P
100K
0-100
L3
33K
C10
7 IF-OUT
OSC 8
100P
C17
R7
10K
R8
C13
3.9K
C16
C14
27P
18P C15
10K R10
C12
L6
R9
180P
C20
2-6P
0-8P
8P
R6
680-2.2K
100K-
R11
680K
R12 100 100
1
2
3
4
ANT1
ANT2
GND
GND
OSC
5
0.1 C8
IFT
VT
6 +B
0.1
33K
R4
C4 R2
R3
27P
C7
680 R13
3P
L4
L5
R5
C5
C19
R14
68
C9 0.1
180P
1000P 470K- 1.2M
C3 0-8P
C6 4P
C2
R1
10P
L2
L1
180P
C1
C18
0-8P
100K
0-100
L3
33K
C10
7 IF-OUT
OUT 8
100P
C17
R7
10K
R8
C13
3.9K
C16
C14
27P
FM
TUNING
DRIVE
S-METER
L602
1uH
27P
C15
10K R10
C12
L6
R9
150P
C20
2-6P
0-8P
8P
R6
680-2.2K
100K-
R11
680K
R12 100
100
1
2
3
4
ANT1
ANT2
GND
GND
SIGNAL LINE
GND LINE
X
X
X
X
X X
X
X
X
X
X
+B
+B
+B
+B
+B
+15V
+B +B
+B
+B
+B
+B
+B
+B
+B
+B +B
+15V
+15V +B
+B
+B
+B
+B
+15V
+15V
X
X
X X
+B
X
X
X
X
X
X
( )
( )
) (
) (
Ω
wd/pcb 98.12.8 21:14 y [ W 7
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