Kenwood KDC-4551UB/455UW Service Manual page 17

U
SWITCH UNIT (X16-704x-xx)
1
2
CN601
CNDET 20
PANDAT 19
FL+B 18
USB5V 17
D- 16 D-
D+ 15 D+
3 USBGND 14
X34-
CN701
SYSDA 13
1/2
VFDCE 12
A
VFDCLK 11
VOL2 10 10
VOL1 9 9
VFDINH 8
REMOCON 7
11.5V 6
ACC3.3V 5
GND 4
4 AUX G 3
AUX R 2
AUX L 1
J602
1
2
AUX
3
CN603
VCC
1
D-
2
USB
D+
3
GND
4
5
(X16-704x-xx)
6
CATEGORY MODEL NAME
KDC-U449
KDC-U5049
ENTRY USB KDC-4551UB
KDC-455UW
KDC-4651URY
ENTRY HD KDC-HD548U
IC602 : KSM-2003TN5B
Q602,610-612
: RT1P141C-X
Q603 : RT1N241C-X
CAUTION : For continued safety, re place safe ty critical com po nents only with manufacturer's rec om mend ed parts (refer to parts list).
Indicates safety critical com po nents. To reduce the risk of electric shock, leakage-cur rent or re sis tance mea sure ments shall be carried out (ex posed
7
parts are ac cept ably in su lat ed from the supply cir cuit) be fore the ap pli ance is returned to the customer.
• DC voltages are as measured with a high impedance volt me ter.
Val ues may vary slight ly due to vari a tions between in di vid u al in stru ments or/and units
V
D608
REMO.CON.
∗
IC602
D607
13
D606
12
D605
11
D604
R622
C621 0
D603
0.1
3.2V
D602
8
D601
DIMMER
C682 27P
C681 27P
D686
D685
DIMMER
LF601
D653,654,656-658,
UNIT DESTI- D652,655,659,
660-663,671,
665-669,680
No. NATION
674,675,677,678
2-70 M1 B30-3210-05
3-01 C1 B30-1780-05 YES
2-73 E1 B30-3210-05
2-71 E2 SMLE12WBCR1R2X
2-72 E3 B30-1779-05
0-11 K B30-3210-05
D601-608,685,686 : DZ2J051/M/-X
D651 : B30-1566-05
D652,655,659,665-669,680
:
∗
FL601 : QLF0202-001
W
7.5V
Q610
R639
C617
100
470P
2.5V
C618
1000P R640
100
R615
Q611
47K
2.5V
Q612
EN601
ENCODER
AUDIO
Q603
S612 S613
3.2V
0V
6 5
S607 S608
Q602
3 2
Q602
S604 S605
PAN
3.3V
DISP
1 2 3 4 5 6
D664 D670 D672,673,676,679
B30-3210-05 B30-3210-05 B30-3210-05
B30-1780-05
B30-3210-05 B30-3210-05 B30-3210-05
SMLE12WBCR1R2X SMLE12WBCR1R2X SMLE12WBCR1R2X
B30-1779-05 B30-1779-05 B30-1779-05
SMLE12WBCR1R2X B30-3210-05 SMLE12WBCR1R2X
D653,654,656-658,
660-663,671,674,
675,677,678 : B30-1780-05
D664 :
∗
D670 :
∗
D672,673,676,679 :
∗
.
X
KDC-4551UB/455UW/4651URY
KDC-U449/U5049
TAG ST
BT IN
RDS TI
C611
0.1
11.2V
R613
100
1G
C612
0.1
TL621
KS1
S614 S615
KEY
MATRIX
4
TL622
KS2
S609 S610 S611
1 BAND
TL623
KS3
S606 S616 S602
EJECT
IPOD/BT
TL624
(ACCENT)
KS4
S603
SRC
LED
KDC-4551UB/455UW/4651URY/U449/U5049 (2/2)
R653,654,
R658,
IC602 R648 R652 656,657, R655
669
670,671
YES 560 680 750 750
YES 560 470 470 YES 560
560 680 750 750
560 680 750 750
YES 470 560 750 750
YES 680 680 750 750
SIGNAL LINE
GND LINE
B LINE
X16-704x-xx (1/1)
Y
R673,
R659
674
15K YES
390
15K YES
15K YES
15K YES
15K YES
17