Yamaha M7CL-32 Service Manual page 307

W V U T S
CPUM 001 CIRCUIT DIAGRAM (M7CL-32/M7CL-48)
for USB
48 MHz
REGULATOR
PQ070XZ01ZP (X3180A00)
REGULATOR
WARNING
Components having special characteristics are
1
marked
2
3
1: DC INPUT (Vin)
4
specification equal to those originally installed.
5
2: ON/OFF cont.(Vc)
3: DC OUTPUT (Vo)
4: VC(V ADJ )
5: GND
28CC1-2000004850-1 1
R Q P O N
: Not installed
TRANSCEIVER
for CPU
: Metal Film Resistor (chip)
64 MHz
CPU
*
PIN NO. NAME
121 PTM[4]/PINT[4]/AFE_RDET/USB1d_TXDMNS
122 RESERVED/USB1d_SUSPEND
123 USB1_ovr_crnt/USBF_VBUS
124 USB2_ovr_crnt
125 RTS2/USB1d_TXENL
126 PTE[2]/USB1_pwr_en
127 PTE[1]/USB2_pwr_en
*
and must be replaced with parts having
M L K J I
Lithium Battery
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 64M
SDRAM 64M
CPUM 001 CIRCUIT DIAGRAM (M7CL-32/M7CL-48)
H G F E D
Battery
M7CL-32/M7CL-48
Battery holder
For power supply when backup is not performed
SYSTEM RESET
OP AMP
CR2032
Socket
Battery
Backup power switching circuit
Detection voltage: 2.7 V
SRAM 2M
INVERTER GATE
EEP ROM 64M
BACKUP
C B A
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