Sony XR-C2200 Service Manual page 20

• Waveforms
– MAIN Board – – KEY Board –
1 IC1 qs (OSC2) 1 IC900 y; (OSC)
3.2 Vp-p
54.7 ns
2 IC1 qh (XO)
5.4 Vp-p
30.6 µs
3 IC130 1 (X OUT) (FM/AM Mode)
184 mVp-p
98 ns
2.5 Vp-p
28 µs
• IC Block Diagrams
– MAIN Board –
IC130 TB2118F-EL-S
24 23 22 21 20 19 18
+
VCC
– +
4BIT SWALLOW
REGULATOR COUNTER
SEEK/RECP SEEK/RECP
PRESCALLER
SIG
PHASE
PROGRAMMABLE
COMPARATOR
COUNTER
40BIT SHIFT
REFERENCE
REGISTER
OSCILLATOR
DIVIDER
18BIT
18BIT
ON/OFF
BUFFER
SERIAL
INTERFACE
1 2 3 4 5 6
IC400 LC75374E
33 32 31 30 29
+
+
–
–
–
+
34
LSELO
L4 35
L3 36
L2 37 +
L1
38 –
VDD 39
–
R1 40
+
R2 41
R3 42
DECODER LATCH
R4 43
RSELO 44
+
–
–
–
+
+
2 3 4 5
1
20 20
IC800 MM1175XFF
BUS ON
1
OUT
RESET
RESET
2
SWITCH
OUT
17 16 15 14 13
BATT
BATT 3
AMP
SWITCH
VDD
CLK
4
OUT
AMP
VREF 5
DATA
6
+
IN/OUT
GND 7
12BIT
20BIT
IF COUNTER
22BIT
I/O OUTPUT
PORT PORT
11
7 8 9 10 12
28 27 26 25 24 23
22 LFIN
+
21 LFOUT
–
–
+
+
20 LROUT
–
19 VREF
18
CONTROL CE
17 DI
16 CL
15
VSS
SHIFT
–
REGISTER 14
RROUT
+
+
–
–
13 RFOUT
+
12 RFIN
6 7 8 9 10 11
VCC
14
RESET
13
IN
BUS ON
12
IN
CLK
11
IN
BATT
10
CHECK
9 DATA IN
8 DATA OUT