Sony D-NF430 - Page 20

D-NF430/NF431
2020
D-NF430/NF431
• Waveforms
– MAIN Board –
1
IC801 tg (XTAL)
500 mV/DIV, 20 ns/DIV
45.5 ns
1.1 Vp-p
8
Q104 (Collector) (FM mode)
1 V/DIV, 50 ns/DIV
195 ns
2.2 Vp-p
8
Q104 (Collector) (AM mode)
500 mV/DIV, 50 ns/DIV
195 ns
1.2 Vp-p
7
IC101 qg (X_O) (FM mode)
1 V/DIV, 5 µ s/DIV
13.3 µ s
1.6 Vp-p
7
IC101 qg (X_O) (AM mode)
200 mV/DIV, 5 µ s/DIV
13.3 µ s
0.5 Vp-p
5.7 µ s
2.2 Vp-p
2
IC801 yd (SYNC)
(CD play mode)
1 V/DIV, 2 µ s/DIV
4
IC401 9 (L2L)
1 V/DIV, 2 µ s/DIV
5.7 µ s
2.6 Vp-p
3
IC801 if (RFACI)
(CD play mode)
200 mV/DIV, 200 ns/DIV
550 mVp-p
5
IC250 5 (EXT), Q250 (Gate)
1 V/DIV, 1 µ s/DIV
3.7 µ s
2.2 Vp-p
6
Q250 (Drain)
2 V/DIV, 1 µ s/DIV
3.7 µ s
3.6 Vp-p
• IC Pin Function Description
Pin No. Pin Name I/O Description
1
FG O FG signal output to the system controller
2 XBRK I
Brake signal input terminal Not used
3WII
Comparator (W) positive pole input terminal
4VII
Comparator (V) positive pole input terminal
5UII
Comparator (U) positive pole input terminal
6 COM I
Comparator (U/V/W) negative pole input terminal
7 VIN -
Dry battery connection terminal
8 PGND2 -
Ground terminal
9 L2L -
Coil connection terminal
10
VCC0 O Power supply voltage output terminal (+2.3V)
11 PWSW O
OSC standby signal output terminal
12
VCC2 O Power supply voltage output terminal (+2.1V)
13
VSTB2 O Power supply voltage output terminal (+2.1V)
14
VAPC O Power supply voltage output terminal (+1.95V)
15
VSTB1 O Power supply voltage output terminal (+1.25V)
16
VCC1 O Power supply voltage output terminal (+1.2V)
17 VREF O
Reference voltage output terminal
18 PWG I
VAPC power supply on/off control signal input terminal
19 PD O
Error amplifier output terminal for APC circuit
20 DELAY I
Delay control signal input terminal
21 INM2 O
Error amplifier output terminal for VCC0 switching power supply circuit
22
RF2
-
Error amplifier connection terminal for VCC0 switching power supply circuit
23 INP2 I
Error amplifier non-invert input of VCC0 switching power supply circuit
24 GND -
Ground terminal
25 UPCK7
O FET (bottom side) drive signal output for VD switching power supply circuit
26 UPCKB7
O FET (top side) drive signal output for VD switching power supply circuit
27
VD I Feed back voltage input terminal for VD switching power supply circuit
28 INP7 I
Error amplifier non-invert input for VD switching power supply circuit
29 INM7 O
Error amplifier output terminal for VD switching power supply circuit
30
RF7
-
Error amplifier connection terminal for VD switching power supply circuit
31 VG O
VG power supply output terminal (+4.5V)
32 C1H -
Capacitor connection terminal for charge pump (high side) of VG power supply circuit
33 C1L -
Capacitor connection terminal for charge pump (low side) of VG power supply circuit
34
COLD ST O Not used
35
SYNC I 176.4 kHz clock signal input from the system controller
36
RMCR O Wake up signal output to the system controller
37
WAKE I Wake up signal input from the system controller
38
CLOCK I Serial clock signal input from the system controller
39
DATA I Serial data input from the system controller
40
LATCH I Latch signal input from the system controller
41 RO3 O
Focus coil drive signal (-) output terminal
42 VD3 -
Power supply terminal (for focus coil drive)
43 FO3 O
Focus coil drive signal (+) output terminal
44 MGND23 -
Ground terminal (for focus/tracking coil drive)
45 RO2 O
Tracking coil drive signal (-) output terminal
MAIN BOARD IC401 TB2169AFG (O)
(FOCUS/TRACKING COIL DRIVE, SPINDLE/SLED MOTOR DRIVE, POWER CONTROL)