Toshiba BDX2500KU Service Manual page 34

IC4402 R2A30209SP
M
For SPINDLE
10.8-13.2V
VM1
GND
SWICHING
Commutation
Commutation
Reverse detect
STARTER
CLK 6.4MHz
Current gain
3A/V
0.6A/V
-
+
Voltage gain
PWM
CIRCUIT
Frequency
150KHz
TSD
FG(x3)
10.8-13.2V
For SLIDE
For/ACT1/ACT2/ACT3
4.5-5.5V
Voltage gain
x12 x12
x6 x6
Current gain
Current gain
0.88 A/V
0.88 A/V
+ +
CTL CTL
- -
Frequency
Frequency
75KHz
75KHz
PWM PWM
CIRCUIT CIRCUIT
5-10
For LOADING
4.5-5.5V
7-13.2V
M
H Bridge
Voltage gain
x12
x6
+ -
ACGS
Gain Select
SPGS
(SPM and ACT)
EN 2
ENABLE
EN 1
DSP
DSP