Zoom G1 User Manual

1 2 3 4 5 6 78
A
B
C
D
87654321
D
C
B
A
R27
510k
"GUITAR"
C10
15p
R25
620
+3.3VA
C160.1u
R33
20k
R52
10k
R53
10k
C20
0.1u
+3.3VD
C19
0.1u
C22
0.1u
R35
10k
+3.3VA
3
2
1
84
IC2A
NJM2100V
2
3
1
J4
SJ-6325-B
C33
0.1u
C34
0.1u
R49
33k
+3.3V
A
C30
0.1u
R50
10
R51
10
R44
22k
R45
22k
R47
5.6k
C29
2200p
C2
6
100p
R48
33k
R46
5.6k
C28
2200p
C27
100p
"OUTPUT"
+
C11
0.1u/50V
+C17
47u/16V +C18
47u/16V
+C23
10u/16V
+
C31
100u/16V
+
C32
100u/16V
C21
0.1u
R26
10k
192F
S
R43
10k
+3.3VD
SCLK
CSB
SDIN
C24
0.1u
+
C25
10u/16V
+3.3VA
5
6
7
IC2B
NJM2100V
R36
15k-F
R37
240k-F
3
2
1
84
IC5A
NJU7082BV
5
6
7
IC5B
NJU7082B
V
128FS
D_IN
D_OUT
1FS
2
1 3
Q1
BC817-40
R28
10k
+
C12
10u/16V
+3.3VA
TP12
AGND
TP15
OPA IN
TP18
AD L
TP17
AD R
TP20
DGND
TP21
AGND
TP22
DA L
TP23
DA R
TP24
L OUT
TP25
R OUT
TP26
AGND
2
3
1
4
J2
SJ-6325-4P
C39
0.1u
+
C38
470u/16V
+
C40
47u/16V
60mA typ
BTT_
LVL
2
3
1
J3
DC-208B
L5
open-l
L8
open-l
C37
open-c
R32
110k-F
R55
22k-F
R54
18 2W
C35
open-c
C36
open-c
"DC-IN" AD-0006A
20mA typ
+3.3VA
TP14
BTT
TP29
AGND
+3.3VD
TP19
+3.3VA
TP28
DGND
TP16
+VDC
TP27
-VDC
VIN
1
GND
2
VOUT
3
IC3
uPC2933BT1D
K A
D2
1N4003
PAD2
BATT+
PAD1
BATT-
C13
open-c
-5VA
+
C41
47u/16V
AVSS
AVDD
TP13
Input
R38
ope
n-r
R58
open-r
R56
open-r
170mA typ
+1.26VD
A K
D301
RB160L-40TE25
2
1 3
Q300
open-tr
2
1 3
Q301
KTA1001
C304
2200p
R311
1k
22uH
+C306
470u/16V
L305
LQH43CN220K03
R312
470
R309
220
R310
2.2k
+C303
10u/16V
EXT
1
VIN
2
GND
3
ON/OFF
4
VOUT
5
IC301
XC6365B103MR
TP301
+1.26SWV
TP300
EXT
R313
100k-F
R314
390k-F
C305
220p
R41 open-r
R40open-r
L4
open-l
L6 open-l
L7 open-l
+3.3VD
L9
open-l
+3.3SDRAMV
+3.3DSPV
+3.3CPUV
L10
open-l
L11
open-l
+3.3VD
+
C44
ope
n-cp
+
C45
open-cp
+
C46
open-cp
R59
open-r
+
C47
open-cp
+3.3LEDV
R42
open-r
R69
open-r
C83
22p
C84
open-c
Four R6 (SUM-3)
C85
open-c
R29
47k
R30
8.2k
R31
8.2k
C14
330p
C15
1500p-fil
m
R307
0
R308
open-r
TP30
+3.3VD
JP2
open-r
TP399
FG2
TP398
FG1
MCLK
1
NC
2
DCVDD
3
DGND
4
DBVDD
5
NC
6
BCLK
7
DACDAT
8
DACLRC
9
ADCDAT
10
ADCLRC
11
NC
12
NC
13
NC
14
NC
15
LOUT
16
ROUT
17
AVDD
18
AGND
19
VMID
20
NC
21
NC
22
RLINEIN
23
LLINEIN
24
MODE
25
CSB
26
SDIN
27
SCLK
28
PAD
33
IC4
WM8734SEFL
R39
open-r
JP1
open-r
JP3
open-r
R34
10k
FG2
FG1
JP6
0.1u
JP5
0.1u
AVSS
JP4
open-r
G1 CIRCUIT DIAGRAM
MAIN PCB(PCB-0169) Analog
- 17 -

Zoom G1 Specifications

General

Simultaneous Effects	5
A/D Conversion	24-bit
D/A Conversion	24-bit
Input Impedance	1 MΩ
Output Impedance	1 kΩ
Patch Memory	40
Weight	350g (without batteries)
Inputs	1/4" phone jack
Outputs	1/4" phone jack
Effects Types	Compressor, Overdrive, Distortion, EQ, Chorus, Flanger, Phaser, Tremolo, Vibrato, Delay, Reverb