8
NEW IPOD CHARGING CIRCUIT
The original SoundDock
®
Digital Music System charges the iPod with the Firewire connection pins
on the dock assembly. Pin 11 of the Dock connector is used to charge the iPod Battery and pin 13 is
used to detect the iPod is placed on the cradle.
TP226
TP227
TP233
TP220
TP212
TP231
TP232
TP225
GND
MTH
MTH
255130-024
J201
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
TP228
TP230
TP222
TP213
TP224
GND
TP215
DGND
TP217
TP223
GND
TL3301E
S201
1
2
3
4
TL3301E
S200
1
2
3
4
MTG
MTG
MTG
MTG
MTG
MTG
277316-001
J202
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
AUDIO-REF
LINE-OUT-R
LINE-OUT-L
ACC-DETECT
RXD1
TXD1
+VIPOD
ACC-IDENT
ACC-PWR
B2
DGND
DGND
B3
2004-2008
Original
Dock Board
IPOD DOCK
CABLE TO DSP
BatteryCharge
Pin 11
Always Present
iPod Detect,
Pin 13
Goes High
BatteryCharge
Pin 8
MTH
MTH
MTG
MTG
MTG
MTG
MTG
MTG
MTG
AUDIO-REF
LINE-OUT-R
LINE-OUT-L
ACC-DETECT
TXD1
B3
+VIPOD
+5_USB
+5_USB
iPOD_DET
ACC-IDENT
B2
DGND
RXD1
TP226
TP227
TP233
TP220
TP212
TP231
TP232
TP225
J201
255130-024
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
TP228
TP230
TP222
TP213
TP224
GND
TP215
DGND
TP217
TP223
GND
TP235
TP236
TP237
TP238
TP239
TP240
TP241
TP242
TP243
TP244
TP245
TP246
TP247
TP248
TP249
TP250
TP251
TP252
TP253
R1
43.2K
R2
75.0K
DGND
DGND
DGND
R4
49.9K
R3
49.9K
R5
100K
DGND
S200
PT307693-002
S201
PT307693-002
J202
277316-002
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
TP254
TP255
IPOD DOCK
CABLE TO DSP
iPOD DET
Pin 30
Goes Low
ACC-DETECT
Pin 20
Goes High
2008 New
Dock Board
The SoundDock Digital Music System with USB iPod Charging is the new version and charges the
iPod via the USB pins. Pin 8 is used to charge the iPod battery and pins 20 and 30 are used to
detect the iPod is placed on the cradle.
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