JVC KD-R420J Service Manual page 28

<LCD & Key section (J,UI,U,UH,UN,UT,UF)>
Tr
MENU
P
ENCODER
COM
A VOL1
COM
B VOL2
SW
SELECT
JS601
QSW1231-002
KEY MATRIC
R605 R604 R603 R602 R601 KEY0
1.2k 820
2.7k 1.8k 820
S605 S604 S603 S602 S601
DOWN F-SKIP B-SKIP UP POWER/SRC
R618 R617 R611 R610 R609 R608 R607
KEY1
10K 3.9K 2.7k 1.8k 1.2k 820 820
S611 S610 S609 S608 S607 S606
DISP BRIGHTNESS EQ EJECT BACK/TP MENU
S601~S611: NSW0326-001X
No.MA478
LCD DISPLAY
40 41 42 43 44 45 46 47 48 49 50 51 52 53 54
TAG
ST HD
AF REG
DI1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
QLD0672-001
LIGHTING DISPLAY
* * * *
* * * *
* *
* * * * * *
D653 D650 D648 D646 D629 D638 D631 D642 D644
MENU VOL VOL EJECT UP
BACK
EQ B.SKIP
SOURCE SML-D12V8W-X
* *
/PWR D636 D627
* *
* * * *
D654 D652 D649 D647 D632 D643 D645
VOL VOL
F.SKIP
SOURCE EQ MENU BACK * D630 * D639 DISP DOWN
/PWR
SML-D12V8W-X
VOL VOL
* * D641 * D640
D634 D635 D633
* D637 * D628
EQ BACK
MENU SML-D12V8W-X
BRIGHTNESS
SOURCE/PWR VOL VOL
4.0V
Q632 0.2V
R650
2SC4154/EF/-X
Q631 4.0V 2.7k
0V
0.2V
2SC4154/EF/-X R649
2.7k
0V
BRIGHTNESS
HOLD LOUD
TP PTY
REMOCON
OUT GND VDD
3.3V OV 3.3V
C682
0.1
R683
( )
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
2.4V
49
2.4V
50
2.4V
51
2.4V
52
2.4V
53
2.4V
54
VDD 5.1V
55
VDD1
3.2V
56
1.7V
VDD2
57
R662 R663
0V
58
R665 100
LCDCE 2.4V
1K 1K
59
R666
LCDCL 2.4V
100
60
LCDDA R667 100 2.4V
61
P1 1.6V
62
P2 1.6v
63
P3 1.6v
64
4.0V
Q634 R652
0.2V
2SC4154/EF/-X
2.7k
1 2 3
0V
KD-R420J, KD-R428J
KD-R428UF
KD-R427EE, KD-R424UI KD-R422E SERIES
* REMARKS:
KD-R45E SERIES
KD-R426U SERIES KD-R47EE
KD-R425U SERIES
KD-R421E SERIES
KD-R520J, KD-A525J
KD-R521E SERIES
D640,D641,D635 NIL
D636, D639 SML-D12V8W-X (RED) SML-D12P8W-X (GREEN)
D637, D638 NIL
D642 ~ D645
D627 ~ D630
LED NIL SML-D12P8W-X (GREEN)
D646 ~ D650,D652
D653,D654 SML-D12V8W-X (RED)
B601 ~ B603
0 Ohm NIL
B608,B610,B611,B613
B605 ~ B607
NIL 0 Ohm
B609,B612
LED R655/R668/R654 820 390
R658/R669/R659 1.5K NIL
R636/R638 390 220
KD-R420J, KD-R428J
KD-R428UF
KD-R427EE, R424UI
KD-R45E SERIES
KD-R426U SERIES KD-R520J, KD-A525J
KD-R425U SERIES
KD-R421E SERIES KD-R521E SERIES
KD-R422E SERIES
KD-R47EE
AUX JACK
J601 QNS0299-001 QNS0298-001
(No.MA478<Rev.001>)6/23
SW PWB:GEB10304A
NOT USED FOR:
- KD-R45E SERIES
- KD-R47EE
- KD-R427EE
IC681
AUX-IN
KSM-2003TN5B
3
2
1
R672 R671
* J601
NI NI
C672 C671
4700P 4700P
L673 CN601
QGZ1102K2-20X
AUX-L
NQR0007-002X 1
L674
AUX-R
2
C673
NQR0007-002X AUX-G
3
DGND
4
(1/8W) 3.3V
5
R676
C665 10V
6
2.2 REMOCON
7
1 R675
( ) NC 8
VOL1
9
VOL2
10
LCDCL To Main section 1
11
LCDCE
12
(J,UI,U,UH,UN,UT,UF)
LCDDA
13
USBGND
CN701
14
D+
15
D-
16
USB5V
17
18
KEY0
19
KEY1
20
R677
S32 ( )
2.4V
32
S31
2.4V
31 R691
S30
2.4V
30 10K
S29
2.4V C692
29 USB
LCD DRIVER S28
2.4V
28
S27 C691
2.4V
27
LF691
S26 CN603
2.4V 10
26
QNZ1057-001
S25
2.4V
25
S24
IC661 2.4V
24
S23
2.4V
PT6579LQ 23
NQR0682-001X
2.4V S22
22
VCC
2.4V S21 1
21 D-
2.4V S20 2
20 D+
2.4V S19 3
R678
19
GND
2.4V S18 4
0
18 C680
2.4V S17
17
C679
27pF
27pF
4 5 6 7 8 9 10 11 12 13 14 15 16
NOTES
1. VOLTAGES ARE DC-MEASURED WITH A DIGITAL VOLT METER WITHOUT INPUT SIGNAL
2. UNLESS OTHERWISE SPECIFIED.
ALL RESISTORS ARE 1/16W +5% METAL GLAZE RESISTOR.
ALL CAPACITORS ARE 50V OR 25V CERAMIC CAPACITOR.
ALL RESISTANCE VALUES ARE IN OHM.
ALL CAPACITANCE VALUES ARE IN uF(P=pF)
ALL E.CAPACITORS ARE SHOWN IN THE FORM OF CAPACITANCE(uF)/RATED VOLTAGE(V)
T --- TANTAL CAPACITOR.
3. COMPONENTS IN ( ) INDICATE NOT USE.
created date:2010-11-08