JVC MX-J270V Service Manual page 49

Control section
L702 47uH
L701
47uH
5 R765 330
1
FL2
2
-35V
3
FL1
4
DG
5
SDATA
6
SCK
7
MCLK
8
MSTAT
9
MCMND
10
NC
11
6V
12
SAFETY
13
FAUX
1
TAPE LED
2
MSIN
3
MPX
4
OSDATA
5
OSCK
6
OSCS
7
OSD
8
MRESET
9
DSPSTB
10
POUT
11
SMUTE
SLC-SDATA
12
MRDY
13
4
FTU
14 SLC-SCK
SPK
15
PRI
16
LATCH
17
PERIOD
FAUX
TAPE-LED
STTA
MCLK
MCMND
3
MSTAT
1
STTA
2
SLC-SDATA
3
SW5V
4
SLC-SCK
5
DG
6
NC
7
TKEY1
8
TKEY2
9 SAFETY
BPHOTO
10
TKEY3
11 TKEY3
APHOTO
TKEY2
TKEY1
2
R804 82K
R805 82K
L709
Q709
KTC3199
R729
D705
MTZ5.1JA
1
A
FL701
3
A B
REC
2
CONT. RANDOM
L706 10uH
1 ALL PRGM CLOCK
D706
1SS133
C735 16V47
1
7G
2
6G
3
R764 27K 5G
4
4G
5
3G
C718 6.3V100 6
2G
7
1G
C719 0.001
8
VDD
9
SCKO/SLC-SCK
R754 4.7K
10
SDATAO/SLC-SDATA
R727 1K
11
FAUX
12
LED-TAPE
R705 2.2K
13
SLC-STTA
R791 1K
14
UPD78044FGF-039
MCLK
R763 1K
15
MCMND
R707 1K
16
MSTAT
R755 100K
R708 2.2K
17
RESET
R709 2.2K
18
PHOTO A
R710 2.2K
19
PHOTO B
20
AVSS
21
N.C
R756 100K
22
SAFETY1
R712 2.2K
23
SLC K3
R713 2.2K
24
SLC K2
L703 10uH R714 2.2K
SLC
R715 2.2K
B.F
L707 10uH
1K
Q704
DTC114TS
R772 10K
C715 16V10 X701
8.0MHz
Q703
KTC3199
+ +
R771 R777
D704
22K 1K
1SS133
B C
MX-J270V
QLF0021-001
R,D,S
A.BASS EX S.MODE
TA NEWS INFO EOS
REC SLEEP MONO ST
L708 22uH
R738 220K
64
S5
C714 0.001
63
S4
62
S3
R745 47K R761
61
S2
60
S1
R753
2.2K R758
59
PERIOD
PERIOD
R737 2.2K
58
LATCH
LATCH
R736 2.2K
57
BACKUP
R769 2.2K
PRI
56
PROTECTOR
2.2K
R768
55 SPK
SPK
R733 2.2K
54
VOL+
R732 2.2K
53
VOL-
IC701
52
VDD
R731 1K
51
FTU
R730 10K FTU
50
MRDY
MRDY
49
SMUTE
R788 2.2K
R703 2.2K
48
ICVSS
R789 10K
47
PEM
SMUTE
46
POUT
R728 2.2K
45 POUT
OSDATA
R704 1K
44 OSDATA
DSPSTB
R721 1K
43 DSPSTB
OSD
R726 220
OSD
42
OSCS
R724 220
41 OSCS
OSCK
R723 220
OSCK
R722 220
R720 2.2K
C730 0.001
R800 10K
C723 X702 C726
39P M2Z4.19 39P
Q706 Q707
2SC2668 2SC2668
D E
2-4
CONTROL PCB
1 1
2 2
3 3
D707
C737
150P POWER
red
1
P-LED
2
KEY_2
3
GND
R740 220K
R742 220K
C713 0.001
Q711
10K DTA114ES
10K
D709
1SS133
DTA114ES
D708
1SS133
1
P-LED
2
KEY_2
3
GND
R747 1K
KEY2
1
KEY_3
2
KEY3 KEY3
3
GND
1 1
KEY1 KEY1
2 2
KEY_2 KEY_2
3 3
KEY_3 KEY_3
4 4
GND GND
1 1
PERIOD PERIOD
2 2
KEY1
FTU FTU
3 3
TAPE TAPE
4 4
FAUX FAUX
5 5
6V 6V
IC404
GP1U261X
+
>>
S414
<<
S415
TUN+
S416
TUN -
S417
F
1
2
3
JS701
QSW0538-001
DISC1
S700
EJECT1
S701
DISC2
R880 300
S702
EJECT2
S709
S703
POWER
DISC3
S704
1 EJECT3
KEY_3
2
KEY3
3
GND S705
Q472 Q470 Q471
DTC114ES DTC114ES
Q473
DTA114ES
Q474
DTC114ES
R490 4.7K
RANDOM KEY CON[+]
S706 S710
KEY CON[-]
REPEAT
S707
S711
ECHO
PAL/NTSC
S708
S712
MPX/V,MASK
S713
STOP/CLR SOUND MODE
S418
S714
DECK A/B SBASS
S715
S422
REVERSE AUX
S406
S423
DUBBING CD
S424 S407
REC TUNER
S425
S408
CD REC TAPE
S426 S409
SHEET 3/8
G H