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TCM-230DV
• IC Block Diagrams
– MAIN Board –
IC101 NJM2128M-TE2
PRE +IN
1
PRE
–
AMP
S GND
2
+
POWER
POWER
3
AMP A
+IN A
+
POWER
–
4
-IN A
POWER
AMP B
POWER
–
5
-IN B
+
POWER
6
+IN B
7
RF OUT
RIPPLE
ALC
FILTER
RF IN
8
IC601 LB1979VL-TLM-E
20
19
18
17
SPEED
VCC
DETECT
VCC
10
16
PRE -IN
PRE OUT
15
POWER
14
OUT A
VCC
13
POWER
12
GND
POWER
11
OUT B
10
TC
9
ALC IN
16
15
14
13
SPEED CONTROL
REFERENCE VOLTAGE
WAVEFORM DETECT
COMMUTATION STARTING LOGIC
CURRENT
DETECT
SOFT SWITCH
PRE DRIVER
TO
EACH
BLOCKS
4
1
2
3
5
6
IC102 LM4890MMX
SHUTDOWN
1
BIAS
BYPASS
2
+IN
3
-IN
4
IC501 NJM2072M
INPUT
1
GAIN CONT
2
3
AMP OUT
GND
4
12
11
STARTING
OSCILLATING
DETECT
CIRCUIT
POWER
SUPPLY
BIAS
REFERENCE
VOLTAGE
TO
CONTROL
BLOCKS
7
8
9
10
8
VO2
7
GND
6
VDD
5
VO1
VCC
8
7
OUTPUT2
6
OUTPUT1
RECOVERY
5
TIME CAP
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