Aiwa XP-ZR850 Service Manual page 26

XP-ZR850
Pin No. Pin Name
48 CPVO
49, 50 PGND2, PGND1
51, 52 LO_2, LO_1
53 VO0
54 VCC0
55 VD_B
56 VD_T
57 VDLX
58 VD
59 INPVD
60 INP0
61 RF
62 INM
63 PAPC
64 VAPC
65 GND
66 VREF
67 VIN
68 SW
69 VCP
70 VCC2
71 VSTB2
72 VSTB1
73 VCC1
74, 75 APWM, PWM
76 FG
77 RMCRB
78 CPUI
79 CPVI
80 CPWI
26
I/O
I Check terminal for phase compensation VCC0 power supply phase
— Ground terminal (for VCC0 switching power supply circuit)
— Coil connection terminal for VCC0 switching power supply circuit
O VO0 voltage output terminal of switching power supply circuit Not used
O VCC0 power supply voltage output terminal (+2.7V)
O FET (bottom side) drive signal output for VD switching power supply circuit
O FET (top side) drive signal output for VD switching power supply circuit
— Coil connection terminal for VD switching power supply circuit
I Feed back voltage input terminal of VD switching power supply circuit
I Error amplifier non-invert input of VD switching power supply circuit
I Error amplifier non-invert input of VCC0 switching power supply circuit
— Error amplifier connection terminal of APC circuit
O Error amplifier output terminal of APC circuit
I Feed back voltage input terminal of APC circuit
O Voltage output terminal of APC circuit
— Ground terminal
O Reference voltage output terminal
— Dry battery connection terminal
— Coil connection terminal for VCP power supply circuit
O Voltage output terminal of VCP power supply circuit
O VCC2 power supply voltage output terminal (+2.1V)
O Standby power supply (2) output terminal (+2V)
O Standby power supply (1) output terminal (+1.2V)
O VCC1 power supply voltage output terminal (+1.3V)
I Spindle motor servo drive signal input from the system controller
O FG signal output to the system controller
O Wake up signal output to the systerm controller
I Comparator (U) positive pole input terminal
I Comparator (V) positive pole input terminal
I Comparator (W) positive pole input terminal
Description