Block Diagram - Key Control/Power Supply Section - Sony Glasstron Lite PLM-A35E Service Manual

4-3. BLOCK DIAGRAM – KEY CONTROL/POWER SUPPLY Section –
S101
(POWER SWITCH)
ON/OFF
S102
STRAT/BATT CHECK
D104
LED DRIVE
POWER Q101
CN306
2
LANC SIG
3
LANC DC
4
POWRE SW
FOR
CHECK
CN305
1
LANC DC MOD UNREG
2
LANC SIG
ON
S301
USER LOCK
OFF
RV301
BRIGHT
05
SYSTEM CONTROLLER
IC301 (2/2)
DC IN NON
33
AUDIO CIRCUIT
LCD CONTROL
CIRCUIT
21 POWER SW
CHECK CROSS
15
EEPROM (IC302),
24 POWER LED VIDEO CIRCUIT
VIDEO CIRCUIT
HEADPHONE AMP
(IC201)
SERVICE LANC
95 LANC IN
INTERFACE
96 LANC OUT
Q304
DD MAIN 79
8 USER LOCK
BL ON
28
RESET SIGNAL
RESET 6 GENERATOR
82 BRIGHT A/D
BATT IN 31
VCC 47
AVCC
90
BACK UP VCC
98
BATT SENCE 85
4-5
DC IN
DETECT SWITCH
Q303
DC/DC
CONVERTER
T101
D108
RIPPLE L106
FILTER
12V
Q203
12V
L104
LCD BACK L109
LIGHT
5V
L102
L107
5V
+3.2V L110
REGULATOR
3V
Q102
L108 L103
2V
IC304
PS301
+5V
REGURATOR
IC303
MOD UNREG
L101
SWITCHING
REGULATOR
Q102
OUT1 VCC2
46 45
8 –IN1 (C)
VCC1 18
SWITCHING
REGULATOR
Q105
44 OUT2
13 –IN2 (C)
SWITCHING
REGULATOR
Q103
40 OUT3
24 –IN3 (C)
SWITCHING
REGULATOR
Q104
39 OUT4
–IN4 (C)
29
20 CTL1
22 CTL3
21 CTL2
DC/DC CONVERTER
IC101
4-6
J101
D102
F301
DC IN 9V
+
D101 –
BATTERY
TERMINAL
D103
F302
+
–
Confidential
PLM-A35E (AEP)