Zoom G2.1u Service Manual page 20

1 2
D +3.3VD
+3.3VD S-80929CNNB-B8P-T2(OPEN)
R1
+3.3VD IC6
10k
IC4
1 4 1 4
VDD OUT VSS OUT
2 3 2 3
VSS CD VDD CD
R3112Q291A C1
0.01u
For Flash-Writer
LED_GAIN
LED_TONE
LED_LEVEL
LED_RHYTHM
LED_TAP
DEBUG
TP3
IN
TP4
OUT
TP5
GND
C +3.3VD
R72
47k
SW_PEDAL
SW_SELECT
+3.3VD
RA1 RA2
47k*4 47k*4
SW_TAP
SW_RHYTHM
To CN9A
SW_STORE
SW_TYPEP
SW_TYPEM
R2
0
CN7A
SW_UP
1
TO FOOTSW-PCB SW_DOWN
2
3
PH-3A (2mmP)
B
CN8A
LED_COM0
1
LED_COM1
2
LED0
3
LED1
4
LED2
5
TO 7SEG-PCB LED3
6
LED4
7
LED5
8
LED6
9
LED7
10
PH-10A (2mmP)
CN4A
LED_COM0
1
LED_COM1
2
LED8
3
TO PEDAL-PCB LED9
4
LED10
5
6
SW_SELECT
7
PH-7A(2mmP)
A
1 2
3
/RESET
R74
+3.3VD 47k
R14
22k
CN10 IC14 +3.3VD
C2
1 8
1 CS VCC
2 7
C19
2 CLK PE
3 6
3 DI ORG
4 5 0.039u
4 DO VSS 0.1u
C3
5
IS93C86A-3GRLI
6
7
0.027u
8
11310808-13440000(open)
+3.3VD
TP1
R64 R62 TEST_MODE
D164 47k 47k
R63
D163 open-r
R73
47k
1
P21/SO2
2
P22/SCK2
3
P23/RXD1
4
P24/TXD1
5
P25/ASCK1
C16 6
0.1u
VDD
7
VSS
8
P26/TI2/TO2
9
P27/TI3/TO3
10
P30/TI00
11
P31/TI01
12 IC1
P32/TI10
13 uPD703015BYGC-A29-8EU
P33/TI11
14
P34/TO0/A13
15
P35/TO1/A14
16
P36/TI4/TO4/A15
17
P37/TI5/TO5
18
IC/VPP
LED0 19
P100/RTP0/A5
LED1 20
P101/RTP1/A6
LED2 21
P102/RTP2/A7
LED3 22
P103/RTP3/A8
LED4 23
P104/RTP4/A9
LED5 24
P105/RTP5/A10
LED6 25
P106/RTP6/A11
LED7
+3.3VD
C20
0.1u
C74
470p
CODEC_PD-
DSP_RST-
X1
AMUTE
20MHz
C76 C77
open-c open-c
3
4 5
ECB_GAIN
ECA_GAIN
ECB_TONE
ECA_TONE
ECB_LEVEL
ECA_LEVEL
R15 R16 R17 R18 R19
22k 22k 22k 22k 22k
C4 C6
0.039u 0.039u
C5 C7
0.027u 0.027u
C11
R30
1k
0.01u
C12
R31
AVSS PEDAL_VAL
1k
0.01u
SW_PEDAL AVSS
C13
R32
AVDD
1k
0.01u
C14
R33
BTT_LVL
1k
AVSS
0.01u
75
P71/ANI1
74
P70/ANI0
73
AVREF
72
AVSS
71 C18
AVDD
70 0.1u
P65/A21
69 LED10
P64/A20
68 LED9
P63/A19
67 LED8
P62/A18
66 SCAN1
P61/A17
65 SCAN0
P60/A16
64 1 8
P57/AD15
63 2 7 RA3
P56/AD14
62 3 6 47k*4
P55/AD13
61 4 5
P54/AD12
60 1 8 RA4
P53/AD11
59 2 7 47k*4
P52/AD10
58 3 6 +3.3VD
P51/AD9
57 4 5
P50/AD8
56 C17
BVSS
55
BVDD
54 CPUD7
P47/AD7
53 0.1u CPUD6
P46/AD6
52 CPUD5
P45/AD5
51 CPUD4
P44/AD4
CPUD3
CPUD2
CPUD1
CPUD0
CPUD[0..7]
CPUD[0..7]
PORT_D2C
PORT_C2D
DSP_HAS-
DSP_HDS-
DSP_R/W-
DSP_RDY
4 5
6
AVDD +3.3VD
R56
open-r
CN2A
3
+ C67
2
100u/6.3V
TO VR-PCB
1
PH-3A(2mmP)
R57
open-r
AVSS
AVDD
CN3A
1
2
TO PEDAL-PCB
3
4
5
PH-5A (2mmP)
CONTROL_VAL
D6
R52
2 1
10k
1SS133(OPEN)
from POWER Section
D1
1 C15
0.1u
+3.3VD 3
2
1SS226(OPEN)
DT1A
D7
2 1 2
MUN5135DW1T1
1SS133(OPEN)
LED_COM1
DT1B
5
MUN5135DW1T1
LED_COM0
LED[8..10]
LED_GAIN
SW_TYPEM
SW_TYPEP
SW_STORE
ECA_GAIN
ECB_GAIN
ECA_TONE
ECB_TONE
SW_RHYTHM
ECA_LEVEL
ECB_LEVEL
SW_TAP
LED_TONE
LED_LEVEL
LED_RHYTHM
LED_TAP
G2.1u CIRCUIT DIAGRAM
MAIN PCB (CPU) PCB-5155A
6
7 8
D
AVDD
R53 R54
"FOOT-SW/EX-PEDAL"
470k 1k L1 C
0 ohm
R51 J1
2
330k
3
1
L2
SJ6336
0 ohm
L3
0 ohm
AVSS
CN9A
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
B
11
11 TO PANEL-PCB
10
12
9
13
8
14
7
15
6
16
5
17
4
18
3
19
2
+3.3VD 20
1
11311120-13420000
A
Title
D164 MAIN PCB(PCB-5155) ANALOG circuit 1/7 D164 MAIN PCB(PCB-5155) CPU circuit 3/7
Size Number Revision
Z3A-0223-A3 Z3A-0223-A3
MP MP
A2 - 20 -
Date: 14-Dec-2005 Sheet of
File: C:\Documents and Settings\inoue\ƒfƒXƒNƒgƒbƒv\19-25-G2.1u Circuit.ddb D164MP_cpusch Drawn By:
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