Yamaha DME4io-ES Service Manual page 181

W V U T S
CPU CIRCUIT DIAGRAM (DME4io-ES/DME8i-ES/DME8o-ES) 001
for USB 48 MHz
*
PIN NO.
121
122
123
124
125
126
127
REGULATOR
For EMC measurement
（EMC対策用用）
WARNING
Components having special characteristics are marked and must be
replaced with parts having specification equal to those originally installed.
安全上の注意
印の部品は、安全を維持するために重要な部品です。
交換する場合は、安全のため必ず指定の部品をご使用ください。
28CC1-2001004394-1 1
R Q P O N
TRANSCEIVER
for CPU 64 MHz
CPU
NAME
PTM[4]/PINT[4]/AFE_RDET/USB1d_TXDMNS
RESERVED/USB1d_SUSPEND
USB1_ovr_crnt/USBF_VBUS
USB2_ovr_crnt
RTS2/USB1d_TXENL
PTE[2]/USB1_pwr_en
PTE[1]/USB2_pwr_en
*
for CPU for SDRAM
bypass capacitors bypass capacitors
XX : Not installed （未実装）
: Metal Film Resistor (chip) （チップ金属被膜抵抗）
M L K J I
Lithium Battery（リチウム電池）
Battery VN103500
VN103600(Battery holder for VN103500)
Notice for back-up battery removal. Push the battery
as shown in figure, then the battery will pop up.
Druk de batterij naar beneden zoals aangeven in de
tekening, de batterij springt dan naar voren.
SDRAM 128M
SDRAM
128M
CPU CIRCUIT DIAGRAM (DME4io-ES/DME8i-ES/DME8o-ES) 001
H G F E D
DME4io-ES/DME8i-ES/DME8o-ES
Battery
Battery holder
For power supply when backup is not performed
OP AMP
（非バックアップ時電源供給用）
SYSTEM RESET
CR2032
Socket
Battery
Backup power switching circuit
Detection voltage: 2.7 V
（バックアップ電源切り替え回路
検出電圧 2.7V）
SRAM 2M
INVERTER GATE
FLASH ROM 128M FLASH ROM 128M
not installed
C B A
1
2
3
4
5
6
7
PQ070XZ01ZPH (X3180A00)
REGULATOR
IC001
8
1
1: DC INPUT (Vin)
2
3
2: ON/OFF cont.(Vc)
4
5
3: DC OUTPUT (Vo)
4: VC(V )
ADJ
9
5: GND
RB500V-40 (V2376600)
DIODE
D001
10
1
2
1: ANODE
2: CATHODE
11
DTC143XKA (V3033500)
DIGTAL TRANSISTOR
TR001
3
1
12
2
R OUT
1
IN
R
2
1: GND
GND
2: IN
IN OUT
3: OUT
GND
13
14
15
16
15