Alesis VX 49, Руководство по обслуживанию

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D D
C C
B B
A A
Size: B
Title: lqvhmn_top_level.sch
Sheet 1 of 2
Date: 2019/5/22
Reviewed: Reviewed
Revision: PCBRev
Project State: ProjectState
ProjectCode
Purpose: MainFunction
Location: PCBLocationInSystem
TO TR
USB_N
USB_P
GND
TO RP
TO RP
USB_N
USB_P
MIDI_TX
SW_DI
LED_DO
MIDI_RX
USB_CONNECT
CHECK_POWER
EXT_PSU
VBUS_SENSE
EXT_CHARGER
KBD_CLK
TO_KBD
FROM_KBD
KBD_RESET#
KBD_BOOT1
KBD_BOOT0
POT_BANK0
POT_BANK1
POT_BANK2
POT_BANK3
POT_SEL0
POT_SEL1
PAD_SEL
PAD_BANK0
PAD_BANK1
PAD_BANK2
PAD_BANK3
POT_BANK4
LED_OE#
SR_STROBE0
SR_STROBE1
SR_CLK1
SR_CLK0
U_mcu
mcu.Sch
+3V3_POT
POT_BANK4
POT_SEL0
POT_SEL1
GND
KBD_CLK
TO_KBD
FROM_KBD
KBD_RESET#
KBD_BOOT1
KBD_BOOT0
EXT_PSU
VBUS_SENSE
CHECK_POWER
USB_CONNECT
EXT_CHARGER
FOOTSWITCH
MIDI_TX
MIDI_RX
+3V3
C5
105 GND
+5V_UNREG
C4
105 GND
GND
1
2
3
4
J3
CON4
GND
+3V3_POT
Place Test Points Strategically
+3V3
GND1GND2GND3GND4
+3.3V1+3.3V2 +3.3V3 +3.3V4
+3.3V P1 +3.3V P2
+3.3V P3 +3.3V P4 GND P1 GND P2 GND P3 GND P4
+5V_UNREG
+5V1+5V2
+3V3_POT
GND_POT
GND_POT
C7
225
POT_SEL0
POT_SEL1
POT_BANK0
POT_BANK1
POT_BANK2
POT_BANK3
+3V3
GND
C3
225
TO TLU
LED_OE#
LED_DO
SW_DI
GND
FOOTSWITCH
PAD_SEL
PAD_BANK0
PAD_BANK1
PAD_BANK2
PAD_BANK3
TO TLU
GND_POT
C6
225
+3V3_POT
POT_BANK4
GND_POT
(Pass Through to TLL)
TO RP
SR_CLK0
SR_STROBE0
SR_CLK1
SR_STROBE1
3
5
7
9
2
4
6
8
10
1
J1
0.5S-1X-10PWB
C1
225
C2
104(No Stuff)
GND_POT
3
5
7
9
11
13
15
17
19
21
23
25
27
29
18
20
22
24
26
28
30
2
4
6
8
10
12
14
16
1
J4
0.5S-1X-30PWB
GND_POT
GND_POT
GND_POT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
J2
0.5S-1X-20PWB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
J5
0.5S-1X-20PWB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
J6
0.5S-1X-20PWB
BOLT1
BOLT
BOLT2
BOLT
BOLT3
BOLT
BOLT4
BOLT