Philips EXP7361 Service Manual page 10

SM8613AV – LASER DIODE DRIVER
Pin Name Direction
→ laser diode driver
1 LDISET
2 NC1 –
→ laser diode driver
3 MUTE
→ laser diode driver
4 PCK
→ laser diode driver
5 DUTYADJ
→ laser diode driver
6 FLOCK
7 NC2 –
8 GND GND
→ laser diode driver
9 PDVIN
10 NC3 –
→ laser diode driver
11 LDOFF
laser diode driver →
12 LDIOUT
13 VCC +2.6V
laser diode driver →
14 RG2
15 NC4 –
→ laser diode driver
16 RG1
LV8222W – PWM-DRIVER
Pin Name Direction
→ PWM-driver
1 RF
PWM-driver →
2 COM
→ PWM-driver
3 VS
PWM-driver →
4 CP1
→ PWM-driver
5 CPC1
PWM-driver →
6 CP2
→ PWM-driver
7 CPC2
→ PWM-driver
8 VG
9 VCC +2.6V
PWM-driver → µP
10 FG
→ PWM-driver
11 FIL
→ PWM-driver
12 COMIN
µP → PWM-driver
13 S_S
→ PWM-driver
14 PWM
→ PWM-driver
15 BRK
→ PWM-driver
16 MODE1
→ PWM-driver
17 MODE2
18 NC –
→ PWM-driver
19 RMAX
→ PWM-driver
20 VCOIN
→ PWM-driver
21 VCO
→ PWM-driver
22 VGREG
PWM-driver → µP
23 VSMON
24 TGND GND
25 GND GND
µP → PWM-driver
26 CLK
→ PWM-driver
27 IN3R
→ PWM-driver
28 IN3F
→ PWM-driver
29 IN2R
→ PWM-driver
30 IN2F
→ PWM-driver
31 IN1R
→ PWM-driver
32 IN1F
33 VS3 +A
µP → PWM-driver
34 MUTE
PWM-driver →
35 OUT3R
36 PGND3 GND
PWM-driver →
37 OUT3F
PWM-driver →
38 OUT2R
39 VS2 +A
40 PGND2 GND
PWM-driver →
41 OUT2F
PWM-driver →
42 OUT1R
43 PGND1 GND
44 VS1 +A
servo driver →
45 OUT1F
PWM-driver →
46 WOUT
PWM-driver →
47 VOUT
PWM-driver →
48 UOUT
3-2
Description
LD drive maximum current setting resistor connection
no connection
intermittent drive stop signal
intermittent control reference pulse input
intermittent duty ratio adjust resistor connection
intermittent drive control signal
no connection
ground
laser luminosity monitor voltage input
no connection
LD drive current control signal
LD drive current output
supply voltage
APC frequency response control capacitor connection
no connection
APC loop gain control resistor connection
Description
output current detection pin
common point of spindle motor
power supply for spindle motor driver
charge pump pulse output pin
pin for charge pump
charge pump pulse output pin
pin for charge pump
pin for charge pump
power supply for the small signal system circuit
FG pulse output
waveform synthetic signal filter pin
differential input of position detection comparator
start/stop input of spindle motor block
PWM signal input of spindle motor block
brake input of spindle motor block
PWM frequency switching pin of spindle motor block
soft switching characteristic select pin of spindle motor block
no connection
sets maximum frequency of VCO pin
pin to control voltage of VCO pin
oscillation frequency of VCO pin
pre-drive regulator pin
power supply voltage monitor pin
ground of small signal system
ground of small signal system
channel 3 reverse output
logic input pin of actuator H-bridge 3
logic input pin of actuator H-bridge 3
logic input pin of actuator H-bridge 2
logic input pin of actuator H-bridge 2
logic input pin of actuator H-bridge 1
logic input pin of actuator H-bridge 1
power supply for H-bridge 3
H-bridge and three-phase sled mute pin
H-bridge forward/reverse output 3
ground of H-bridge output block 3
H-bridge forward/reverse output 3
H-bridge forward/reverse output 2
power supply for H-bridge 2
ground of H-bridge output block 2
H-bridge forward/reverse output 2
H-bridge forward/reverse output 1
ground of H-bridge output block 1
power supply for H-bridge 1
H-bridge forward/reverse output 1
output pin for spindle motor
output pin for spindle motor
output pin for spindle motor