Pioneer DV-585A-S Service Manual page 71

5
Pin Functions
Pin No.
Pin Name
1 FWD
2
REV
3
V CC 2
4
VLO –
5
VLO +
6
VO4 +
7
VO4 –
8
VO3 +
9
VO3 –
10
VO2 +
11 VO1 –
12 VO1 –
13 VO1 +
14 VCCP1
15 VCCS
16 VIN1 +
17 VIN1 –
18 VIN1
19
VIN2 +
20
VIN2 –
21
VIN2
22
VIN3 –
23
VIN3
24
VO_OP
25
VIN–OP
26
VIN+OP
27
REG_IN
28 REG_OUT
29 VREF_OUT
30 VREF_IN
31 VIN4
32 VIN4 –
33 MUTE234
34 MUTE1
35
VCONT
36
S_GND
5
6
Loading output direction switching (FWD). Loading system logic input.
Loading output direction switching (REV). Loading system logic input.
Channels 3, 4, and loading power stage power supply
Loading output (–)
Loading output (+)
Channel 4 output (+)
Channel 4 output (–)
Channel 3 output (+)
Channel 3 output (–)
Channel 2 output (+)
Channel 2 output (–)
Channel 1 output (–)
Channel 1 output (+)
Channel 1 and 2 power stage power supply
Signal system power supply
Channel 1 input. Input operational amplifier + input.
Channal 1 input. Input operational amplifier – input.
Channel 1 input. Input operational amplifier output.
Channal 2 input. Input operational amplifier + input.
Channel 2 input. Input operational amplifier – input.
Channel 2 input. Input operational amplifier output.
Channel 3 input. Input operational amplifier – input.
Channal 3 input. Input operational amplifier output.
Operational amplifier output
Operational amplifier – input
Operational amplifier + input
Regulator error amplifer output. Connect this pin to the base of the external pnp
transistor.
Regulator error amplifier input (+).
VREF amplifier (voltage follower) output.
VREF input. Apply the external reference voltage to this pin.
Channal 4 input. Input operational amplifier output.
Channal 4 input operational amplifier – input.
Controls the on/off state of channals 2, 3, and 4.
Channal 1 output on/off control
Loading block output high–level voltage setting
Signal system ground
6
7
Pin Descriptions
DV-585A-S
7
8
A
B
C
D
E
F
71
8