Circuit Diagram - Zoom g9.2tt Service Manual

1 2
+3.3VD
TP1
R8 TEST MODE
47k
/TEST
+3.3VD
R9
47k
D165/D166
D
R37
open-r
+3.3VD
+3.3VD
R1
IC5 10k
1 4 /RESET
VDD OUT
2 3
VSS CD
R3112Q291A C1
0.01u
CN4
1
2
For Flash-Writer
3
4
5
6
+3.3VD
7
8
R11 R13 11310808-13440000(open)
47k 47k 1mmP FFC
C
TP3
UPDATE
ENG_CTL_L
ENG_CTL_H
R12 R14
47k 47k
MIDI_IN
MIDI_IN
MIDI_OUT
MIDI_OUT
A_MUTE
A_MUTE
/DIR_MUTE
/DIR_MUTE
/USB_MUTE
/USB_MUTE
to ANALOG PCB
R15 R19 R21
47k 47k 2.2k
/DIR_MUTE
/USB_MUTE
/USB_SPND
/USB_SPND
1FS
LCD_RS
LCD_RS
LCD_R/W
to ANALOG PCB LCD_R/W
R26
LCD_E
LCD_E
47k
LCD_D4
LCD_D4
LCD_D5
LCD_D5
LCD_D6
LCD_D6
LCD_D7
LCD_D7
B
/SCAN0
R20 R22 R23 /SCAN1
47k 47k 47k
/SCAN2
/SCAN3
/SCAN4
/SCAN5
/SCAN6
/SCAN7
/SCAN[0..7]
/SCAN[0. . 7]
LCD_CTS0
LCD_CTS1
to ANALOG PCB
RTN_DTC
R27 R28
open-r 47k
A
ENG_CTL_H
ENG_CTL_H
ENG_CTL_L
ENG_CTL_L
TUBE_ACC
TUBE_ACC
1 2
3
/NMI
SW_STC1
SW_STC2
SW_STC3
SW_STC4
SW_STC5
SW_STC6
SW_STC7
SW_STC[ 1 ..7]
SW_STC[ 1 ..7]
+3.3VD
RA1 RA2
47k* 4 47k* 4
AVSS
+3.3VD
AVSS
+3.3VD
RA7
5 4
6 3
7 2
8 1
47k*4
ENG_CTL_L
ENG_CTL_H 1
P21/SO2
A_MUTE 2
P22/SCK2
MIDI_IN 3
P23/RXD1
MIDI_OUT 4
P24/TXD1
5
P25/ASCK1
0.1u C14 6
VDD
7
VSS
8
P26/TI2/TO2
9
P27/TI3/TO3
1FS 10
P30/TI00
11
P31/TI01
12 IC1
P32/TI10
13 UPD703015BGC-A32-8EU-A
P33/TI11
14
P34/TO0/A13
15
P35/TO1/A14
16
P36/TI4/TO4/A15
17
P37/TI5/TO5
18
IC/VPP
19
P100/RTP0/A5
20
P101/RTP1/A6
21
P102/RTP2/A7
22
P103/RTP3/A8
23
P104/RTP4/A9
24
P105/RTP5/A10
25
P106/RTP6/A11
R2
0
+3.3VD
LCD_CTS0
C20
LCD_CTS1
0.1u
RTN_DTC
C73
TUBE_ACC 0
470p
/RESET
+3.3VD
X1
20MHz
C70
C71
15p
15p
+3.3VD
3
4 5
AVDD
CNB_EXP
to ANALOG PCB
1
R47
EX_PEDAL D165=3pin
2
D166=open
1k
3
C4 R180
0.01u 0
2.0T-1-3A/open (2mmP)
AVSS
AVSS AVSS
R45
1k
C2 R181
0.01u open-r
AVSS AVDD
CNB_PDLL
R46 1
PEDAL_L D165=open
2
D166=3pin
1k 3
C3 R182
0.01u open-r open/2.0T-1-3A (2mmP)
AVSS
AVSS AVDD
CNB_PDLR
R48 1
PEDAL_R To FOOT1-PCB
2
1k 3
C5 PEDAL_3D D165=3pin
4
0.01u
D166=5pin
5
2.0T-1-3A/2.0T-1-5A (2mmP)
AVSS
AVSS
R49
VR_PRESENCE
VR_PRESENCE
1k
R50
VR_TREBLE
VR_TREBLE
1k
R51
VR_MIDDLE
VR_MIDDLE
1k
R52
VR_BASS
VR_BASS
1k
C6 C7 C8 C9
0.01u 0.01u 0.01u 0.01u
R53
AVSS AVSS AVSS AVSS VR_LEVEL
VR_LEVEL
1k
+3.3VD
R54
VR_GAIN
VR_GAIN
R64
1k
0
AVDD C68 C10 C11
0.01u 0.01u
100u/6.3V
75 AVSS AVSS
P71/ANI1
74
P70/ANI0
73
AVREF
R65
72 C16
AVSS
71
0
AVDD
70 0.1uAVSS /DSP_RST
P65/A21 /DSP_RST
69 /CODEC_PD
P64/A20 /CODEC_PD
68 CPUA19
P63/A19
67 CPUA18
P62/A18
66 CPUA17 R24 R25
P61/A17
65 CPUA16 47k 47k
P60/A16
64 CPUD15
P57/AD15
63 CPUD14
P56/AD14
62 CPUD13
P55/AD13
61 CPUD12
P54/AD12
60 CPUD11
P53/AD11
59 CPUD10 +3.3VD
P52/AD10
RA8
58 CPUD9 CPUA19 5 4
P51/AD9
57 CPUD8 CPUA18 6 3
P50/AD8
56 C15 CPUA17 7 2
BVSS
55 CPUA16 8 1
BVDD
54 CPUD7
47k*4
P47/AD7
53 0.1u CPUD6
P46/AD6
52 CPUD5
P45/AD5
51 CPUD4
P44/AD4
+3.3VD
RA3
CPUD10 8 1
CPUD11 7 2
CPUD8 6 3
CPUD9 5 4
47k*4
RA4
CPUD15 8 1
CPUD14 7 2
CPUD13 6 3
CPUD12 5 4
47k*4
CPUD3
CPUD2
CPUD1
CPUD0
PORT_D2C
PORT_D2C
PORT_C2D DSP Hand-shake
PORT_C2D
/ASTB
/ASTB
/CPU_RD
/CPU_RD
/CPU_WRH
/CPU_WRL
/CPU_WRL
DSP_RDY
DSP_RDY
R190 R191 R63
47k 47k 47k
CLK20M
4 5
6
/CPU_WRH
+3.3VD
CN_ROM1 IC3
CPUA16 1
1 A15
CPUA15 2
2 A14
CPUA14 3
3 A13
CPUA13 4
4 A12
CPUA12 5
5 A11
CPUA11 6
6 A10
CPUA10 7
7 A9
CPUA9 8
8 A8
9
9 NC
10
10 NC
11
11 WE
/RP 12
12 RP
+3.3VD 13
13 NC
47k R61 14
14 NC
R/B 15
15 RB
reserved 16
16 NC
CPUA18 17
17 A17
CPUA8 18
18 A7
CPUA7 19
19 A6
CPUA6 20
20 A5
CPUA5 21
21 A4
CPUA4 22
22 A3
CPUA3 23
23 A2
CPUA2 24
24 A1
open CN24P (1mmP FFC) M29W400DT55N6E
R3 Flash 4M bit
1k
/RESET
IC8
CPUD15 3 2 CPUA15
D0 Q0
CPUD13 4 5 CPUA13
D1 Q1
CPUD11 7 6 CPUA11
D2 Q2
CPUD9 8 9 CPUA9
D3 Q3
CPUD8 13 12 CPUA8
D4 Q4
CPUD10 14 15 CPUA10
D5 Q5
CPUD12 17 16 CPUA12
D6 Q6
CPUD14 18 19 CPUA14
D7 Q7
+3.3VD IC10
11 20 CPUA16 1
LE VCC A1
1 10 CPUA17 2
OE GND A2
C17 CPUA18 3
A3
SN74LV373ANS 0.1u
4
G2A
/OEA 5
G2B
CPUA19 6
G1
+3.3VD
IC9 16
VCC
CPUD7 3 2 CPUA7 8
D0 Q0 GND
CPUD5 4 5 CPUA5 C19
D1 Q1
0.1u
CPUD3 7 6 CPUA3 SN74LV138ANS
D2 Q2
CPUD1 8 9 CPUA1
D3 Q3
CPUD0 13 12 CPUA0
D4 Q4
CPUD2 14 15 CPUA2
D5 Q5
CPUD4 17 16 CPUA4
D6 Q6
CPUD6 18 19 CPUA6
D7 Q7
+3.3VD
11 20
LE VCC
1 10
OE GND
C18
R4 0.1u
SN74LV373ANS
10K
CPUA[1..19]
CPUA[0..19]
CPUD[0..15]
D166_dsp.sch
6
7 8
D
+3.3VD
R62
47k
CN_ROM2
48 CPUA17
A16 1
47 /BYTE
BYTE 2
46
VSS 3
45 CPUD15
DQ15A-1 4
44 CPUD7
DQ7 5
43 CPUD14
DQ14 6
42 CPUD6
DQ6 7
41 CPUD13
DQ13 8
40 CPUD5
DQ5 9
39 CPUD12
DQ12 10
38 CPUD4
DQ4 11
37 C67
VCC 12
36 0.1u CPUD11
DQ11 13
35 CPUD3
DQ3 14
34 CPUD10
DQ10 15
33 CPUD2
DQ2 16
32 CPUD9
DQ9 17
31 CPUD1
DQ1 18
30 CPUD8 C
DQ8 19
29 CPUD0
DQ0 20
28
OE 21
27
VSS 22
26 CPUA19
CE 23
25 CPUA1
A0 24
open CN24P (1mmP FFC)
/OEA
/CPU_RD
15
B
Y0
14 /DSP_CS
Y1 /DSP_CS
13
Y2
12 /EX_PORT
Y3 /EX_PORT
11
Y4
10
Y5
9
Y6
7
Y7
CPUD[0..15]
A
D166_uif.sch D166_midi.Sch
D166_dsp.sch D166_uif.sch D166_midi.sch
G9.2tt CIRCUIT DIAGRAM
MAIN PCB(PCB-0151) CPU Circuit
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7 8