Schematic Diagram - Display Board - Sony MEX-1HD Service Manual

6-32. SCHEMATIC DIAGRAM – DISPLAY Board – •
R951 R952 R953 R954
220 220 220 220
D921 D923 D925 D927
CL-190UB-X-T CL-190UB-X-T CL-190UB-X-T CL-190UB-X-T
D922 D924 D926 D928
CL-190UB-X-T CL-190UB-X-T CL-190UB-X-T CL-190UB-X-T
ENC900 ENC901
ROTARY ROTARY
ENCODER ENCODER
VOL - +
PUSH SOUND PUSH LIST
R907 R908
22k 15k
S901
DSPL
See page 37 for Waveform. • See page 52 for IC Block Diagrams.
FL900
FLUORESCENT INDICATOR TUBE
C915
2.2
50V
C903 C918
R904 0.1 0.1
0
C904
0.01
D904
RRX9000-0501
REMOTE
CONTROL
RECEIVER
R903 C902
100k 0.1
C901
0.1
LED CONTROL D905
MA8051M
IC901
SN74HC595ADBR
D921-936,950,951
(KEY ILLUMINATION)
R955 R956 R957 R958 R959
220 220 220 220 220
D929 D931 D933 D935 D950
CL-190UB-X-T CL-190UB-X-T CL-190UB-X-T CL-190UB-X-T CL-190UB-X-T
D930 D932 D934 D936 D951
CL-190UB-X-T CL-190UB-X-T CL-190UB-X-T CL-190UB-X-T CL-190UB-X-T
R910 R911 R912 R913 R914
10k 6.8k 4.7k 3.3k 2.2k
LSW901(2/2) S902 S903 S904 S905
(F1) (F2) (F3)
CD HDD FUNCTION
REC F
R926
10
CONTROLLER
REMOTE CONTROL
RECEIVER
RRX9000-0401R
IC902
RRX9000-0601
C914
0.1
C912
0.1
R927
1k
C906 C910
22 0.1 R929
6.3V 100k
R925
470
C909
22 D906
6.3V FB901 MA111
RESET SIGNAL
FB900
GENERATOR
IC904
C913 X900
XC61FN4012MR
0.1 4MHz
IN OUT
GND
C908 R918 330
C905
47
0.1
6.3V R916 330
Q909,910
LED DRIVE
Q909 R996 R947 R982 R902 R983 R905 R945
2SB1132 10k 4.7k 820 820 820 820 4.7k
R997
4.7k CL-190UB-X-T
ILLUMINATION
Q900 Q901
2SC2412K 2SC2412K
-T-146-R -T-146-R
Q910
Q900,901
DTC144EK R948 R946
4.7k 4.7k
LED DRIVE
R915 R917 R919 R922 R923 R935
1.5k 1.5k 1k 680 680 680
S906 S907 S908 S909 S910
SOURCE OFF
MENU CD CLOSE
M OPEN
59 59
R991
0
F(+)4.3V
FL+48V R940 0
F(-)1.0V
SIRCS
IC903
C921 C920 C919
0.22 0.1 0.22
RE_LB
RE_LA
FLGND
KEY_GND
RE_RA
R932
100k
RE_RB
KEY0
D907
MA111
FLBK R936 1k
FLDAT R937 1k
FLLAT R938 1k
FLCLK R939 1k
BP902
R998 R999 R943
680 680 4.7k
D947
KEY
Q911
2SC2412K
-T-146-R
LED
R944
4.7k
DRIVE
MEX-1HD
RESET
CN901
18P
NOSE_SW
F(+)4.3V
FL+48V
F(-)1.0V
R949 10
FL_3.3V
ILL10V
R992 100
RE_LB
R993 0
RE_LA
GND
KEY-GND
R994 0 (Page 50)
RE_RA
R995 0
RE_RB
KEY0
FB911
FL_BK
FB912
FL_DATA
FB913
FL_LAT
FB914
FL_CLK
SIRCS