Grundig DVD-Kit1, Руководство по обслуживанию

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DVD-Kit1 Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
GRUNDIG Service 3 - 3
IC-Blockdiagramme / IC Block Diagrams
BA5937
BA6849
PIN NAME DESCRIPTION
1 N.C. –
2 A3 Output
3 N.C. –
4 A2 Output
5 N.C. –
6 N.C. –
7 A1 Output
8 GND GND
9 H
1
+ Hall signal input
10 H
1
– Hall signal input
11 H
2
+ Hall signal input
12 H
2
– Hall signal input
13 H
3
+ Hall signal input
14 H
3
– Hall signal input
15 V
H
Hall bias
16 N.C. –
17 C
NF
For connection of phase compensation capacitor
18 SB Short brake
19 N.C. –
20 FR Rotation direction detection
21 E
CR
Output voltage control reference
22 E
C
Output voltage control
23 PS Power save
24 FG FG signal output
25 V
CC
Power supply
26 V
M2
Motor power supply 2
27 V
M2
Motor power supply 1
28 R
NF
For connection of output current detection resistor
PIN NAME DESCRIPTION
1 OUT1-1 Channel 1 negative output
2 OUT1-2 Channel 1 positive output
3 IN1-1 Channel 1 input
4 IN1-2 Input for channel 1 gain adjustment
5 N.C. –
6 N.C. –
7 MUTE Mute control for channels 1 and 4
8 GND GND
9 N.C. –
10 Vcc2 Vcc (channel 2)
11 N.C. –
12 OUT2-2 Loading motor positive output
13 OUT2-1 Loading motor negative output
14 GND Substrate GND
15 REV Loading motor reverse input
16 FWD Loading motor forward input
17 OUT3-1 Channel 3 negative output
18 OUT3-2 Channel 3 positive output
19 LDIN Loading motor input
20 IN3 Channel 3 input
21 Vcc3 Vcc (channel 3)
22 Vcc1 Vcc (channel 1 and 4)
23 VrefIN Bias amplifier input
24 IN4-2 Input for channel 4 gain adjustment
25 IN4-1 Channel 4 input
26 OUT4-2 Channel 4 positive output
27 OUT4-1 Channel 1 negative output
28 GND Substrate GND