Read Sony ICD-37 / ICD-57 / ICD-67 Service Manual online
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• Waveforms
1
IC101
7
(FSR),
qf
(FST)
IC104
rd
(SLDA)
1 V/DIV, 50 µs/DIV
• IC Block Diagrams
IC101
MC145481SDR2
+
–
–
8
13
1
2
20
0.886 V
REF
H. P. F.
SEQUENCE
AND
CONTROL
SHARED
DAC
DAC
ADC
RECEIVE SHIFT
REGISTER
TRANSMIT SHIFT
REGISTER
VAG REF
RO–
4
PO–
3
PI
6
VDD
5
PO+
DR
9
BCLKR
10
PDI
7
FSR
DT
12 BCLKT
11 MCLK
14 FST
15 VSS
16 MU/A
VAG
19 TI+
18 TI–
17 TG
1
VDD
VSS
CUT OFF
FREQUENCY: 200 Hz
FREQUENCY: 200 Hz
L. P. F.
CUT OFF
FREQUENCY: 3.4 kHz
FREQUENCY: 3.4 kHz
L. P. F.
CUT OFF
FREQUENCY: 3.4 kHz
FREQUENCY: 3.4 kHz
–
+
+
–1
IC102
NJM2076M (TE2)
INVA IN
NON INVB IN
BASE B
BASE A
A OUT
VSS
B OUT
2
VDD
3
1
4
7
6
5
8
POWER
AMP
POWER
AMP
IC106
XC25BS5001MR
3
4
1
2
6
Q1
VDD
CLKIN
CE
Q0
5
VSS
1
2
2
1
4
4
11 BIT PLL
(
×
N)
IC107
AN6123MS-TXL
GM
5
DET
3
IN
4
GND
2
DET
1
VCC
DET
IC501
XC6372C331PR
IC502
XC6372D351PR
NC
VOUT
CE
VSS
LX
2
1
3
4
5
VLX
LIMITER
PWM/PFM
CONTROL
OSC 100kHz
BUFFER
PHASE
COMPARATOR
REFERENCE
VOLTAGE
CHIP
ENABLE
SLOW
START
+
–
VDD
IC503, 506
XC62GR3312MR
+
–
–
3
OUTPUT
CONTROL
REFERENCE
VOLTAGE
4
1
2
5
CURRENT
LIMIT
VSS
VIN
CE
NC
VOUT
IC703
RS5C348A-E2
VDD
VDD
OSCIN
OSCOUT
CE
/INTR
32KOUT
SCLK
SO
SI
VSS
32 kHz
OUTPUT
CONTROL
COMPARATOR
W
COMPARATOR
D
ADDRESS
REGISTER
I/O
CONTROL
ADDRESS
DECODER
DECODER
SHIFT
REGISTER
INTERRUPT
CONTROL
OSC
DETECT
VOLTAGE
DETECT
ALARM W REGISTER
(WEEK, MIN, HOUR)
ALARM D REGISTER
(MIN, HOUR)
DIV
OSC
DIVIDER
CORRECTION
9
10
8
7
6
2
3
4
5
1
TIMER COUNTER
SEC, MIN, HOUR, WEEK,
DAY, MONTH, YEAR
3.4 Vp-p
150
µ
s
2
IC101
9
(BCLKR),
qa
(MCLK),
qs
(BCLKT), IC104
rs
(SCLK)
1 V/DIV, 200 ns/DIV
3
IC104
es
(XTALA), IC106
6
(Q0)
1 V/DIV, 100 ns/DIV
4
IC106
3
(CLKIN), IC701
qg
(DSPMCK)
1 V/DIV, 20 µs/DIV
5
IC701
ul
(X2)
2 V/DIV, 100 ns/DIV
6
IC701
is
(XT1), IC703
1
(32KOUT)
1 V/DIV, 10 µs/DIV
7
IC701
ij
(RTCINT),IC703
6
(INTR)
2 V/DIV, 200 ms/DIV
8
IC703
8
(OSCOUT)
200 mV/DIV, 10 µs/DIV
9
IC501
4
(LX)
1 V/DIV, 5 µs/DIV
0
IC502
4
(LX)
2 V/DIV, 5 µs/DIV
qa
Q502 (Base)
200 mV/DIV, 5 µs/DIV
200 mV/DIV, 5 µs/DIV
qs
Q502 (Collector)
1 V/DIV, 5 µs/DIV
1 V/DIV, 5 µs/DIV
3.4 Vp-p
565 ns
4.6 Vp-p
282 ns
73.5
µ
s
3.4 Vp-p
3.6 Vp-p
200 ns
2.5Vp-p
30.6
µ
s
4.3 Vp-p
500 ms
1.1 Vp-p
30.6
µ
s
4.3 Vp-p
9.9
µ
s
3.6 Vp-p
11.2
µ
s
0.9 Vp-p
11.1
µ
s
4.6 Vp-p
3.6
µ
s
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