Zoom G1 Service Manual page 16

1 2
D
C
B
IC9C
5 6
74HCU04
IC9D
9 8
74HCU04 R70 10
R71 10
R72 10
R73 10
IC9E
74HCU04
11 10
+3.3VD
1FS C77 C78
1u 1u
L13
D4
13 12 K A K
IC9F open-l
1SS133
74HCU04
C76
0.1u D3
L12
1SS133
open-l
A
1 2
3
DSP_RST-
DSP_RST-
CPUD[0..7]
+3.3DSPV +1.26VD
+3.3DSPV
R61 1
GPIO6
47k 2
GPIO4
3
GPIO2/BOOTM2
GPIO1 4
PORT_C2D GPIO1/BOOTM1
GPIO0 5
PORT_D2C GPIO0/BOOTM0
6
TIM1
7
TIM0
R60 8
INT0
47k C49 9
CVDD
0.1u 10
INT1
11
INT2
C50 12
DVDD
open-c 13
INT3
14
NMI/WDTOUT
15
IACK
16
VSS
17
CLKR0
TP31 TP32 TP33 TP34 18
DR0
128FS D IN 1FS D OUT 19
FSR0
20
CLKX0
C51 21
CVDD
0.1u 22
DX0
23
FSX0
24
128FS CLKR1
25
D_IN DR1
26
1FS FSR1
27
D_OUT DX1
28
CLKX1
29
R62 open-r VSS
30
FSX1
31
TEST
32
C62 NC
33
CVDD
34
0.1u
RX
35
GPIO5
C61
36
DVDD
37
open-c TX
38
GPIO3
39
VSS
40
SCL
41
SDA
42
HC1/HBIL
43
HC0/HAS
44
HCS
R63
open-r
DSP_HPI.HBIL
DSP_HPI.HBIL
DSP_ADRS0
DSP_ADRS0
DSP_ADRS1
DSP_ADRS1
DSP_R/W-
DSP_R/W-
DSP_HDS-
DSP_HDS-
DSP_RDY
DSP_RDY
192FS
+3.3VD L14
IC9A IC9B
BLM18AG102S
R67 open-r
1 2 3 4
74HCU04 74HCU04
TP38
R65
-5VA -5VA TP39
192FS
D5 1M
A R66
X1
220
1SS133
C79 C80
1u HC-49 C81
18.432MHz 12p
12p
3
4 5
C48
470p
D17
D18
VSS
D19
D20
D21
D22
D23
DVDD
D24
D25
CVDD
D26
D27
D28
VSS
D29
D30
IC7
D31
ZFX-3
CVDD
VSS
DVDD
A10
A11
CVDD
A12
A13
VSS
A14
A15
DVDD
A16
A17
VSS
A18
A19
C64
C65
0.1u
0.1u
C63
0.1u
TP35
DSP_TX
VDD_PLL
+ C82
10u/16V
192FS
4 5
6
+1.26VD +3.3DSPV
132
131
130
129
128
127
126
125 C59
124
123
122 open-c
C57
121
120
119 0.1u
118
117 DSPD[0..15]
116
115
114
C58 0.1u
113 +3.3SDRAMV
112 DSPA2
A2
111 DSPA3 IC8
A3
C60
110 DSPA4 1
A4 VCC
109 DSPD15 0.1u 2
I/O0
108 DSPA5 DSPD14 3
A5 I/O1
107 DSPA6 4
A6 GNDQ
106 DSPA7 DSPD13 5
A7 I/O2
105 C68 DSPD12 6
I/O3
104 DSPA8 C72 7
0.1u
A8 VCCQ
103 DSPA9 DSPD11 0.1u 8
A9 I/O4
102 DSPA10 DSPD10 9
I/O5
101 DSPA11 10
GNDQ
C69
100 DSPD9 11
I/O6
99 0.1u DSPA12 DSPD8 12
I/O7
98 DSPA13 C73 13
VCCQ
97 DSP_BE1 0.1u 14
LDQM
96 /DSP_WE 15
WE UDQM
95 /DSP_CAS 16
CAS
C70
94 /DSP_RAS 17
RAS
93 /DSP_CE0 18
CS
92 open-c DSPA13 19
A11
91 DSPA12 20
A10
90 DSPA2 21
A0
89 DSPA3 22
A1
DSPA4 23
A2
DSPA5 24
A3
C71 25
VCC
0.1u
P2V16S406TP-6G
DSPA[2..13]
TP36
DGND
/DSP_CAS
/DSP_RAS
/DSP_WE
/DSP_CE0
DSP_SDCLK
DSP_BE0
DSP_BE1
DSP_SDCKE
G1 CIRCUIT DIAGRAM
MAIN PCB(PCB-0169) DSP Circuit
6
7 8
D
C
+3.3SDRAMV
50
GND
49 DSPD0
I/O15
48 DSPD1
I/O14
47
GNDQ
46 DSPD2
I/O13
45 DSPD3
I/O12
44 C74
VCCQ
43 0.1u DSPD4
I/O11
42 DSPD5
I/O10
41
GNDQ
40 DSPD6
I/O9
39 DSPD7
I/O8
38
C75
VCCQ
37 0.1u
NC
36 DSP_BE0
35 DSP_SDCLK
CLK
34 DSP_SDCKE
CKE
R64
33
NC
open-r
32 DSPA11
A9
31 DSPA10
A8
30 DSPA9
A7
29 DSPA8
A6
28 DSPA7
A5
27 DSPA6
A4
26
GND
B
A
- 16 -
- -
7 8