BBK DK1020S - Page 67

Pin Name Function
Data
direction
DC
voltage
Remark
11 MD DVD-RAM main beam RF DC signal input D I 2
12 SA DVD-RAM assistant beam RF DC signal input A I 1.4
13 SB DVD-RAM assistant beam RF DC signal input B I 1.33
14 SC DVD-RAM assistant beam RF DC signal input C I 1.35
15 SD DVD-RAM assistant beam RF DC signal input D I 1.31
16 CDFON CD focus error inverted input I 1.33
17 CDFOP CD focus error onoinverted input I 1.3
18 TNI 3 beam assistant PD signal interted input I 2
19 TPI 4 beam assistant PD signal noninverted input I 2
20 MDI1 Laser power monitoring input 1 I 0
21 MDI2 Laser power monitoring input 2 I 0
22 LDO2 Laser power output 2 O 3.18
23 LDO1 Laser power output 1 O 3.18
24 SVDD3 Servo 3.3V power supply 3.2
25 CSO/RFOP Main servo signal output/RF noninverted output O 1.3
26
RFLVL/RFO
N
RF level output/RF inverted output O 1.33
27 SGND Servo ground 0
28 V2REFO Reference voltage 2.8V O 2.74
29 V20 Reference voltage 2.0V O 2.18
30 VREFO Reference voltage1.4V O 1.5
31 FEO Focus error signal output O 1.5
32 TEO Trace error signal output O 1.16
33 TEZISLV Trace zero passage error input I 1.32
Joint welding with capacitor
C207 connected with this
position will cause disc not
reading
34 OP_OUT Sensing signal magnifying output O 2.55
35 OP_INN Sensing signal inverted output I 2
36 OP_INP Sensing signal noninverted output I 1.74
37 DMO Main axis control signal output O 1.37
38 FMO Feed control signal output O 1.38
39
TROPEN
PWM
Close signal output O 0
40
PWMOUT1/A
DIN9
the first path PWM signal output/AD universal
input
I 1.38 unused
R2166 is unused
Input/output of main axis
braking circuit
R2165 is unused, so these
two pins are unused.
unnsed
E, F signal input directly