Kenwood KC-Z1 Service Manual page 26

V W X Y
Ω
0.5Vp-p/75
(X08-2720-10) (1/3)
DIGITAL IN/OUT
Q Q
0.5Vp-p/75 Ω
A5 7
3
1
GND
1 MD 2
VDD R293
REC OUT 220
3
IN
INVERTER IC84
+
L11 L24 L22
A1 OUT IN
GND
1
OUT +
MD 2
GND IC66
PLAY IN 3
VDD 1 14
4.4V 4.9V
+ VCC
L12 C383
A2 13
2 100u10
4.9V
1 4.4V +
DIGITAL OUT
2 0V 3 12 0V C381 0.01
OPTICAL GND
CD
3 DIGITAL
VDD 11 4.9V
4 IC69 (OPT,COA)
+ 4.95V
L13 INPUT
A3
0V 5 10 0V 16 1 SELECTOR
0V
1 VCC 1G
OUT 9 15
2 0V 0V
CABLE GND 4.9V 6 2G
2 /SAT. 3 2 0V
VDD B
7 8 0V
+ GND
L14
A4 0V 14 3 2.6V
AC-3 A IC3
1
OUT R294 220 0V 13 4 2.3V
2 C370 0.01 2C3 IC2
LD GND
R295 220 12 5
3 4.9V 2.6V
VDD 2C2 IC1
+ R296 220 0V 11 6 2.2V
L15 2C1 IC0
R307
R297 220 470
0V 10 7 4.9V
2C0 1Y
0V 9 8
2Y GND
C418
22P
(BOTTOM VIEW)
J1 C385 0.1
D11
R299
15 L16
MD
1
REC OUT
R301 C356
330 0.22
3
D12
D13
C355
MD L17 0.1
2
PLAY IN
-5.0V D14
D15 T E
L 1 3
J2
4
C357
L18 0.1
CD 1
C377 0.01
INVERTER
DIGITAL IC68 (BOTTOM VIEW)
1
D16 5.0V 2.5V
COAXIAL
C376 0.01
2
2.5V
D17
2.5V 3
0V 14 1 2.5V
VCC
C358 0V 13 2.5V 4
2 2.5V
CABLE L19 0.1
2 C379 5
/SAT. 0V 12 3 2.5V
11 47P
0V 2.6V 6
4 2.5V
7
D18 0V 10 5 0V GND
5
AC-3 0V 9
6 IC67
D19
8 7
0V INVERTER
GND
J3
R398
C359
L20 0.1 1K
LD 1
D20
D21
3.0V 3.4V R332
100K
Q13 Q17
5.0V
5.0V 2.4V Q14
RF RF AMP 2.8V -0.5V
2.4V 0.7V 2.88MHz IC71
6 AMP 2.8V 5.0V 0V
0V BPF Q15 (1/6)
C391 Q11 Q12 0V R329 C392 R331
L25 0.01 R320 R323 Q16 10K 0.01 2.2K 1
AC-3 LD RF IN 2
L1
10K 1K 2.6V 7
0V 0V -0.8V
-0.7V
IN NC OUT
Q18
NC NC
-5.0V
w w w
C400 C401 C415
5.0V
0.1V 5.0V Q19 100u10 100u10 100u10
3 8 + + +
+ 1
C402 C403
R311 10K 0V 2
– 0.01 0.01
IC73 0V 7
4 2.6V
(1/2)
IC73
D22
(2/2)
7 -5.0V
Z AA AB AC
1 5
6 3
IC83
5.0V +5V AVR 7.6V
OUT IN
GND
5.0V IC81 7.6V
+5V AVR
L131
OUT IN
GND
+ + + +
L21
+
-8.1V
-5.0V
GND L132
OUT IN
-5V AVR IC82
L26
C431 47P R377 100
C432 47P R378 100
C433 47P R379 100
C434 47P R380 470
C423 100u10
0.1
C341
2.3V
+
C340
1000P
37 24
LD/DQSY DGND
0V 38 23
7.6V
SRDT SBCK
39 22
DO SFSY C439
40 21 100u10
4.8V
DI/SWDT PW
41 20 + IC80
4.8V
CE/XLAT SBSY
42 IC77 19
4.8V 5.0V
CL/SCLK DVDD
5.0V DIGITAL
43 18 2.5V
9 4 2 2 9 DVDD 6 INTERFACE 5 VCO 1 3
C440
RECEIVER
(DIR) +5V
4.9V 44 17 2.5V 0.1
DIN1 VIN AVR
2.5V 45 16
DIN2 AGND 5.0V
0V 46 15 2.2V
DIN3 R C330
47 14 1000P
DIN4 AVDD
48 13
C329
4.9V DGND NC 100u10
14
VCC C380 +
13 0V 47P
12 5.0V
L52
2.5V
11 2.5V
R392 1K
10 2.5V
9 R393 1K
2.5V
8
2.3V
L47
17.0V D2 D4
+
IC62
C302 R252 2.4V
8
22u50 3.3K 5 (2/2) 2.4V
–
+
6
+ 7
RT R262 R270
2.4V
2.4K 330
D10
C308 IC63
AMP 330P
A/D
CONVERTER
5.0V +
L31 2.4V
R268 R272
2
– 220 330
-5.0V 1 D6 D8
3
+
INVERTER
5.0V 2.4V
4 IC62 +
IC71 IC71 -17.0V (1/2)
2.4V
(2/6) (3/6)
2 3 4 5 6 13 12
2.6V 2.5V 2.6V
IC71 -17.0V -17.0V
IC61
11 10 9 8 +
(6/6) 4
(1/2)
2.4V 3
IC71 IC71 + R267 R271
2
(5/6) (4/6) – 1 220 330 D5 D7
2.4V
2.4V
C393 0.47 C307
x a o
330P
R337 220K AMP
R261
R354 LT
6 10K 2.4K R269
– . 6 i 330
2.4V
5 C301 R251 + 7 2.4V
+ C394 0.47 22u50 3.3K
5 L48
–
+
2.4V IC61(2/2)
AMP R335 220K 8
17.0V
+ +
D1 D3
AD AE AF AG
R405
1 5
0 100
Q10 R403 Q8
1K
R402
10K
Q9
CN2
L64 L61
3 +8V
+ + + + +
L65 L62
2 R GND
+ + + + +
L66 L63
1 -8V
RT
LT
+17V
-17V
-5V REF
+5V REF
-8V
+8V
GND
+8V
GND
+5V REF
TO DIR,AD,DEMO,SEL
R394 47
BCK
R395 47
DATA
R396 47
MCK
0.01
R397 47
LRCK
C339
IC79(6/6)
14
13 12
C347
0.1 IC79(5/6)
11 10
IC85
2.5V IC79(4/6) 2.4V
9 8 Q Q
3
INVERTER
+5V
IC79(3/6)
AVR
5 6
5.0V
C348 IC79(2/6)
0.1 3 4
R399
C469
100u10 1K IC79(1/6)
81
+ 1 2
DOUT
82
7 0V
DIN
IC78
0V 83
XSEL
DIR/ADC
(MAIN/T) C468 22P
SELECTOR
84
0V
PSEL
85
EPCK
86
EYEI
87
EYEQ
88
BTR
D24 fs
L41
89
ELB
90
C9M
IC65
91
TSTI8
92
GND
93
+
IDST
94
IDCK
95
IDO
96
WINGT
256fs
L50 97
SYST0
L43 C338 22P
98
SYST1
C455 99
5P C334
ADST0
100
5P ADST1
C456
5P C335
C459
5P
INVERTER C458 22P
10P
C460
22P
u 1 6 3
y
A12
46.08MHz
OUT
+
+ VSSVDD
C404 0.01
C405
100u10
IC64
+
AH AI AJ AK AL
2 4
8 9
CAUTION: For continued safety, replace safety critical components only with manufacturer's
recommended parts (refer to parts list).
X00-B/5-
WH3 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
6/8
(exposed parts are acceptably insulated from the supply circuit) before the appliance is
returned to the customer.
H
The DC voltage is an actual reading measured with a high impedance type voltmeter with no
signal input. The measurement value may vary depending on the measuring instruments used
X08-3/3
or on the product.
IC61,62 : M5238AL
4/8
IC63 : AK5340-VS
IC64,66~68,71,79 : TC74HCU04AF
IC65 : TC74HC74AF
E
IC69 : TC74HC153AF DOLBY and the double-D symbol are trademarks of Dolby Laboratories Licensing
IC73 : NJM4580E
IC75 : PD4606A Corporation. Noise reduction circuit made under license from Dolby Laboratories Licensing
IC76 : TC55329AJ-25 or TC55329AJ-35
Corporation.
IC77 : LC8904Q
IC78 : TC74HC157AF
IC80,81,83~85 : TA7805S or uPC7805AHF
IC82 : uPC7905HF or TA79005S
Q8 : 2SC1845(F,E)
Q9 : 2SA992(F,E)
Q10 : 2SD882
Q11,12,14~16 : 2SC1923(R,O)
X08-2/3 Q13,17,18 : 2SA992(F,E)
Q19 : UN4119 or DTA113ZS
3/8
D1~8,10~22 : DAN202U
D23,24 : U1BC44
D31 : HZS8.2S(B2) or RD8.2JS(B2)
F
NJU3713D TC9212F
SIGNAL LINE
GND LINE
+B LINE
-B LINE
A11
C399 R341 18.432MHz
5.0V
VIN VCC
15P 47K
OUT GND
7 6 3 1.8V 1 5 1 5 0 8
UPC7805AHF DA204K
UPC7808AHF DA204U
UPC7812AHF
UPC7815AHF
50
5.0V
DB1
49
5.0V
DB2
48
5.0V
DB3
47 1 32
5.0V
DB4 I/05 5.0V GND
46 2 31
5.0V
DB5 I/06 I/04
45 3 30
5.0V 5.0V
DB6 I/07 I/03
44 5.0V 4 29 5.0V
DB7 I/08 I/02
HM62256BLFP8SL
43 5.0V 5 28 5.0V
DB8 I/09 I/01
IC75 6 27 0V TC9162AF
CE1 A0 A0
42 1.3V 7 26 0V TC9163AF
DEMODULATOR A10 A10 A1 A1
41 5.0V 8 25 0V
OR OE A2 A2 TC9164AF
40
GND
39 1.2V 9 24 0V
A11 A3 A3
A11
38 10 23
1.2V 0V
A9 A9 A4 A4
37 11 22
1.2V 0V
A8 A8 A5 A5
36 12 21
0V 0V
A13 A13 A6 A6
35 13 20
5.0V 1.2V
WE WE 1.2V A7
14 19
CE2 A12
34 0V 15 18
A14 A14 NC
16 17
VCC NC
33 1.2V
A12
32 LMX1511TMX
IC76 S-RAM
GND
31 1.2V ML4876CR
A7
C406 0.01
C407 0.01
m
C408 0.01
c C409 100u10 o
+
.
KC-Z1(M) (2/8)
AM AN AO AP
2
9 8 9 9
indicates safety critical components. For continued
NJM4580D-D M5238AL DAN202U NJM4580D-D
NJU3711D
NJM4580L-D NJM4580L-D
XL24C01AP XL24C01AP
9 2 4 9 8 2 9 9
SI-3052V 2SK1062 MMDF2N02ER2 2SK1719 TC74HC153AF
SI-3082V TC9246F
PCF8591T TC74HCU04AF NJM2058M SM5841HS
74HCT7046AD TC74HC74AF NJM324M
TLC2932IPW
LC4966 LC83015JE LC8904Q
KC-Z1/RC-Z1
Y05-3140-10