Denon DVD-3930, Service Manual

Page: 52 / 176

52
DVD-3930/3930CI
BD7956FS Terminal Function
Pin No. Symbol Description
1 LDO- Loading driver negative output
2 LDO+ Loading driver positive output
3 V
CC
BTL block pre-loading power supply
4 ACTIN1 Actuator driver 1 input
5 ACTIN2 Actuator driver 2 input
6 TJMON Chip temperature monitor terminal
7 BTHC Connection with capacitor for bottom hold
8 SPVM_S Spindle driver power supply
9 PGND1 Spindle driver power ground 1
10 PGND2 Spindle driver power ground 2
11 U Spindle driver output U
12 SPV
M
1 Spindle driver power supply 1
13 V Spindle driver output V
14 fin fin
15 PGND3 Spindle driver power ground 3
16 W Spindle driver output W
17 SPV
M
2 Spindle driver power supply 2
18 SPRNF Spindle driver current sense
19 HB Hall bias
20 HU+ Hall amp.U positive input
21 HU- Hall amp.U negative input
22 HV+ Hall amp.V positive input
23 HV- Hall amp.V negative input
24 HW+ Hall amp.W positive input
25 HW- Hall amp.W negative input
26 SPIN Spindle driver control input
27 DGND PWM block pre-ground
28 DV
CC
PWM block control power supply
29 SLIN1 Sled driver 1 input
30 SLIN2 Sled driver 2 input
31 SLV
DD
Sled driver MOS pre power supply
32 SLRNF1 Sled driver 1 current sense
33 SLRNF2 Sled driver 2 current sense
34 CTL1 Driver logic control input 1
35 CTL2 Driver logic control input 2
36 SLGND Sled driver power ground
37 SLO2- Sled driver 2 negative output
38 SLO2+ Sled driver 2 positive output
39 SLO1- Sled driver 1 negative output
40 SLO1+ Sled driver 1 positive output
41 fin fin
42 V
C
Reference voltage input
43 FG Frequency generator output
44 SPCNF Spindle driver filter terminal
45 AGND BTL block power ground
46 LDIN Loading driver input
47 ACTIN3 Actuator driver 3 input
48 AV
M
Actuator driver power supply
49 ACO3- Actuator driver 3 positive output
50 ACO3+ Actuator driver 3 negative output
51 ACO2- Actuator driver 2 positive output
52 ACO2+ Actuator driver 2 negative output
53 ACO1- Actuator driver 1 positive output
54 ACO1+ Actuator driver 1 negative output