System Control Circuit (Rc-Bz6Bu Only) - JVC RC-BZ5LB Service Manual

System control circuit (RC-BZ6BU only)

CN701
7 QGF1212F1-17
SW8V 17 8.3V
16 6.8V 1
CD+B
FCD 15 0.7V 2
14 3
AC/DC 2.1V
TAPE 13 5.7V 4
12 5
REC 0V
SAFETY 11 5.0V 6
REST 10 4.5V 7
9 8
MLD 5.1V R774 1K
MDATA 8 4.8V R775 1K 9
7 10
MCLK 5.0V R776 1K
DG 6 0V
XRST 5 5.1V R777 1K 11
4 12
STAT 0.1V R778 1K
SQCK 3 5.1V R772 1K 13
2 14
SUBQ 5.0V R779 1K
DG 1 0V
6
CD+B
1
6
SAFETY
5
CD DOOR SW
S866
FW701
2 2 0V
1 1 0V
4
VMW1474 D P8-22F23-A3.3NS
FCD
2
MLD 8
XRST 11
3
4
TAPE
STAT
12
REC 5
16
TUST
2
AC/DC 3
1
A B
RC-BZ5LB/BZ5RD
RC-BZ6BU
TO D-1 on page 2-8
TO MAIN AMP SECTION
CN703
QGF1212F1-13
DI701
QLD0045-001
BCTL
5.1V
5.1V
2.6V
43
SEG23
2.6V
44
4.4V SEG24
2.6V 45
SEG25
2.6V 46
SEG26
2.6V
47
SEG27
2.6V
48
SEG28
2.6V
49
NC
2.6V
50
NC IC701
2.6V 51
NC MN171603JACA
AHB 19 R738 10K 0V 52
AHB
R735 10K 5.0V
POUT 20 53
POUT
SYSTEM
SMUTE R745 22K 0V
24 54
SMUTE
CONTROLLER
4.7K 0V
R767 55
+BCTL
R768 0V
FTU 22 10K 56
FTU
R769 5.0V
VOLCLK 21 10K 57
VOLCK
VOLDATA 23 5.0V 58
VOLDATA
R737 10K
0V
59
KILL
5.0V
22K
R739 60
FCD
5.0V
R758 2.2K 61
MLD
5.0V
R761 2.2K 62
XRST
0V
63
BEAT
D704
1SS133-T2
C717
22P
C718
27P
C710
R707
10K
AC/DC
L701 3AB39N 0.01
R719
100K
5.1V
Q704
DTC144EKA-X
0V
R708
RESET
10K
0V
Q706
C702
DTC143TKA-X
C711 5.0V 24P
10/16
0V + C712 +
2.2/50
R701 1K
0V
0V
R706
D707
Q701
1SS133-T2 10K
2SC2714/O/-X
K701
VQZ004B-009
C D E
2-4
ON
CLOCK
SLEEP REC
OFF
KHz MHz
TRACK STEREO
AHB PRO
ALL MONO
LCD HOLDER
2.6V
21 30
SEG1
2.6V
20 29
SEG0
2.6V
R731
19 28
COM0 1K
2.5V
18 27
COM1
2.5V
17 26
COM2
2.5V
16 25 R733
R734 R732
COM3
0V 100K
100K 100K
15
VLCD3
1.7V
14
VLCD2
3.3V
13 L702
VLCD1
3AB39N
5.1V
12
AVDD VREF+
4.5V
R726 2.2K R770
11
CLOSE/REST
5.0V
R725 2.2K
10
KEY1
0V
10K
9 R728
BUP
0V
8
MODEL
0V
7 R754 10K
MPX C732
5.1V 0.1
6 R724 2.2K
CD+B SAFETY
3.7V
R727 2.2K
5
SWBY SAFETY
3.5V
*
R785
4
VER
0V
3
AVSS VREF-
0V
R713 10K
2
JOG2
5.0V
1 R755 10K
JOG1
R789 *
C719
0.001
C720
R746 22K
0.001
R749 47K
18 MPX
C738 150P
R773
R756
100P 10K
C723 C721 22K
0.01
100P
C724
SDATA 15
SCK 17
MDATA
9
MCLK
10
SUBQ 14
SQCK
13
REST 7
X701
C703
QAX0410-001Z
24P
Q702
0V
0V
2SC2714/O/-X
CLOCK
0V
R704
1K
0V 0V
C706
0.001
F G
PL701
BACK LIGHT
FW703
1 2
1 2
FW702
CLOCK/METER
S858
5.7V
UP/
4.9V
S857
4.3V
CD/
S856
4.3V
R790
STOP/PRESET
4.7K
S855
0V
0V
TUNER/BAND
S854
DOWN/
S853
R717
33K
BASS
S852
BACK UP
R716
SOUND
47K
S851
0.6V
QSW0707-001Z
0V 0V
POWER
S865
R797
4.7K
2.2K
D708
1SS133-T2
R858
R718 5.6K
10K
R710 100K
0.7V
R715 33K
R859
18K
K702 VQZ0048-009
0V
REMOCON
5.4V
3
OUT
5.4V 2
VCC
R860 R861
5.4V 1 330 680
GND
+
R720
C801
C727 POWER STANBY
100K 0.01
IC703
47/10 LED LED
GP1U281X
R863 10K
R862 10K
VMW2422 A
R789 NOTES: 1. VOLTAGES ARE DC-MEASURED WITH A DIGITAL VOLT METER OR OSCILOSCOPE
LIST R785
E.B.EN 10K 22K WITHOUT INPUT SIGNAL
U.UP.US.UT.UX.UY.UZ 10K 8.2K CONDITION ----- CD STOP AT DC SUPLLY
10K 150K SOUND.FLAT AHB.ON
EE.EV
J.C ------- 2.2K 2. UNLESS OTHERWISE SPECIFIED,RESISTORS ARE 1/6W 5% CAPBON RESISTOR.
ALL RESISTANCE VALUES ARE IN OHM(s)
ALL CAPACITORS ARE CERAMIC CAPACITOR OR MYLAR CAPACITOR.
ALL CAPACITANCE VALUES ARE IN uF(p*pF).
PARTS NAME CONSTRUCTION ALL INDUCTANCE VALUES ARE IN uH(m*mH).
ALL E.CAPACITORS ARE SHOWN IN THE FORM OF CAPACITANCE(uF)/RATED VOLTAGE (V).
4.7K
DTC143TKA
DTC144EKA
47K
47K
H I
R857
39K
R856
12K
R855
6.8K
R854
3.9K
R853
2.7K
R852
S851--- S858
1.8K
QSW0707-001Z
R851
1.5K
Q851
2SA1037AK/RS/-X
4.0V
JS801
QSW0705-001
C802
0.01
J