Sony DSR-300P Service Manual page 45

MAX202CSE (MAXIM)
MAX202CSE-T
RS-232 TRANSMITTER/RECEIVER
—TOP VIEW—
1
C1+
C1+ 1 V 16
CC
3
C1_
4
C2+
V+ 2 GND 15
5
C2_
C1_ 3 14 T1
OUT
11
T1
10
T2
C2+ 4 13 R1
IN
13
R1
C2_ 5 12 R1
OUT
8
R2
V_ 6 11 T1
IN
R1, 2
T2 7 10 T2
OUT IN
T1, 2
R2 8 9 R2
IN OUT
+5 V 0.1 µF
0.1 µF INPUT 6.3 V
+ +
16
1
+
2 +10 V
+5V to +10V
0.1 µF
VOLTAGE DOUBLER
3
+
4 _10 V
+10V to _10V
0.1 µF
VOLTAGE INVERTER 6
0.1 µF
5 16 V
+
+5 V
400 K
11 14
T1
+5 V
TTL/CMOS
INPUTS
400 K
10 7
T2
12 13
R1
5 K
TTL/CMOS
OUTPUTS
9 8
R2
5 K
15
MB3793-30PNF-ER (FUJITSU)FLAT PACKAGE
BIPOLA SOURCE VOL TAGE SUPERVISOR
—TOP VIEW—
RESET
1 8 CK1
OUT IN
CTW 2 7 CK2
IN IN
CTP 3 6 INH
IN IN
4 GND V 5
CC
INPUT
CK1 : CLOCK 1
CK2 : CLOCK 2
CTP : POWER ON RESET HOLD TIME PRESET
CTW : WATCHDOG TIMER SUPERVISION TIME PRESET
INH : INHIBIT
OUTPUT
RESET : RESET
3
CTP
6
INH
S
PULSE
GENERATOR1
R
8
CK1
WATCHDOG
S
TIMER
7
CK2
PULSE
R
GENERATOR2
V
CC
2
CTW
R1 = 360 k - 720 kZ
COMPARATOR
_
R1 = 240 kZ
+
V = 1.24 V
REF
DSR-300/P(J,E)/V2
2
V+
6
V_
14
T1
7
T2
12
R1
9
R2
: RECEIVER 1, 2
: TRANSMITTER 1, 2
RS-232
OUTPUTS
RS-232
INPUTS
8
CK1
7
CK2
2 1
CTW RESET
3
CTP
6
INH
V V
CC CC
I = 30 uA I = 3 uA
2 1
Q
COMPARATOR
RSFF2
+
1
Q
RESET
_
OUTPUT
BUFFER
Q
RSFF1
Q
REFERENCE
VOLTAGE
CIRCUIT
MAX793SCSE (MAXIM)
PRECISION SUPPLY-VOLTAGE MONITOR
—TOP VIEW—
VOUT 1 16 VBATT
OUT IN
RESET
2 V 15
CC OUT
LOW LINE
BATT OK 3 14
OUT
PFI 4 13 RESET
IN OUT
CE OUT
BATT ON 5 12
OUT OUT
CE IN
6 GND 11
IN
PFO
7 10 WDI
OUT IN
MR WDO
8 9
IN OUT
INPUT
CE IN
: CHIP ENABLE
MR
: MANUAL RESET
PFI : POWER FAIL COMPARATOR
VBATT : BACKUP BATTERY
WDI : WATCH DOG
OUTPUT
BATT OK : BATTERY OK MONITOR
BATT ON : BACKUP BATTERY SWITCHING
CE OUT
: CHIP ENABLE
LOW LINE
: LOW POWER LINE
PFO
: POWER FAIL
RESET : RESET HIGHT
RESET
: RESET LOW
VOUT : VOLTAGE MONITOR
WDO
: WATCH DOG FAIL
MB88346BPFV (FUJITSU)FLAT PACKAGE(SMALL)
MB88346BPFV-EF
C-MOS 8-BIT D/A CONVERTER
—TOP VIEW—
1 20
GND GND
AO3 2 19 AO2
OUT OUT
AO4 3 18 AO1
OUT OUT
AO5 4 17 DI
OUT IN
AO6 5 16 CK
OUT IN
AO7 6 15 LD
OUT IN
AO8 7 14 DO
OUT OUT
AO9 8 13 AO12
OUT OUT
AO10 9 12 AO11
OUT OUT
10 11
V V
DD CC
AO1 - AO12 : 8-BIT D/A OUTPUTS
CK : CLOCK INPUT
DI : SERIAL DATA INPUT
DO : DATA OUTPUT
LD : DATA LOAD CONTROL INPUT (H : LOAD)
8 8
D0
D1
D2
17
DI
D3
D4
D5
8
D6
16
D7
CK
D8
D9
12
ADDRESS
D10 DECODER
D11
15
LD
5
BATT ON
16 1
VBATT VOUT
11 12
OUT
CE IN CE OUT
10 9
WDI WDO
4 7
PFI PFO
8 13
MR RESET
15
RESET
14
LOW LINE
3
BATT OK
18
AO1
19
AO2
2
AO3
3
AO4
4
AO5
17 5
D1 AO6
6
AO7
7
AO8
8
AO9
9
AO10
12
AO11
13
AO12
16
14
DO
LD
15
8-BIT
8-BIT 8
13
R-2R +
LATCH
AO12
_
D/A CONV
8-BIT
8-BIT 8
R-2R + 18
LATCH AO1
_
D/A CONV
14
DO
9-37
IC