Block Diagram - Display/Power Supply Section - Sony HCD-MD1EX - System Service Manual

HCD-MD1EX
7-4. BLOCK DIAGRAM – DISPLAY/POWER SUPPLY Section –
42 16
DATA
43 15 SCK
CLOCK
REMOTE CONTROL
RECEIVER 90 SIRCS CS 44 14
IC902
RESET 45 13 RST
S901 – 915
MASTER CONTROLLER
(SYSTEM CONTROL)
IC707 (3/3)
LED DRIVE
73
LED-MD PLAY
LED DRIVE
LED-MD PAUSE 72
LED DRIVE
LED-MD REC 68
LED DRIVE
LED-CD PLAY 70
LED DRIVE
LED-CD PAUSE 69
LED DRIVE
LED-MD DISC 67
CD-POWER 61
05
FLUORESCENT
INDICATOR TUBE
FL901
SDATA
CS
GRID DRIVE
DIG15 61
Q902
FL/LED DRIVER
IC901
GRID DRIVE
DIG1 11
Q901
LED DRIVE D902
P1 17
Q903 (FOR ILLUMINATION)
XIN XOUT
21 20
OSC
C910, R906
D903
+5V
RDS DECODER (IC710) B+
MD (
Q904
(GREEN)
MD P
Q905
(AMBER)
+5V
MASTER CONTROLLER (IC707) B+
D905
+3.3V
Q906 MD SERVO SECTION B+
REC
D907
MOTOR +5V
MD MOTOR/COIL DRIVER (IC152),
OVER WRITE HEAD DRIVE CIRCUIT B+
CD (
Q908
(GREEN)
CD +5V
CD SERVO SECTION B+
CD P
Q909
(AMBER)
D906
(MD DISC SLOT INDICATOR)
Q907
– 39 –
ST +12V
FM/AM TUNER UNIT B+
+7.5V
A+7.5V
REGULATOR REGULATOR
M62428AFP (IC705) B+
Q509
B+
POWER AMP
(IC506)
B–
D715
FAN MOTOR
D714
(M501) B–
D+5V
–27V
FL DRIVER (IC901) B–
D719
D713
BACK UP +3.3V
MD MECHANISM
D716
+3.3V
CONTROLLER (IC316) B+
REGULATOR
IC192
D718
D717
SYS +3.3V
MD SERVO SECTION B+
D709
B+ SWITCH
Q507, 508
MOTOR +7V
CD MOTOR/COIL DRIVER (IC102),
CD LOADING MOTOR DRIVER (IC702),
MD LOADING MOTOR DRIVER (IC153) B+
AD/DA +5V
A/D, D/A CONVERTER (IC201) B+
RY501
RELAY DRIVE
Q506
+12V
RECT
T901
D524, 525
IC505 POWER
TRANSFORMER
RECT
D509
–27V
RECT
REGULATOR
D503 – 505
Q503
BA701
LITHIUM
BATTERY
+3.3V
REGULATOR
IC502
Except Singapore,
Hong Kong models
+5.7V
VF
REGULATOR
AC
VF
IC503
(TO FL901)
+7V
REGULATOR
VOLTAGE
IC504
SELECTOR
+5V
RECT
REGULATOR Singapore, Hong Kong models
D510 – 513
IC501
D507 D506
– 40 –
RELAY
E
(Page 38)
AC IN
S101
PWR-DWN
F
(Page 38)