Sony NW-MS7 Service Manual page 31

IC504 S-80856ALNP-EEL-T2
NC 3 VREF
VSS 4
IC506 S-8328B33MC-EWN-T2
VSS 4 3 NC
VREF
2 VOUT
PWM
SOFT
CONTROL
START
CIRCUIT
CIRCUIT
EXT 5 1 ON/XOFF
IC508 PST3346UL
NC 3 VREF
VSS 4
2 VDD
1 OUT
IC301 PCM1717T/2K
2 VDD
XTI 1
2
DGND
VDD 3
LRCIN 4
DIN 5
6
BCKIN
1 OUT
7
ZERO
8
D/C_R
VOUTR 9
AGND 10
– 43 –
IC505 S-8520F33MC-BNS-T2
4
EXT
PWM CONTROL,
OSCILLATION
PWM/PFM SWITCH
CIRCUIT
CONTROL CIRCUIT
REFERENCE VOLTAGE
SUPPLY (SOFT START)
5
VIN
IC507 PST3432UL
3 VREF
NC
VSS 4
CLOCK/OSC MANAGER
POWER
SUPPLY
SERIAL
INPUT
INTERFACE
OPEN DRAIN
8-TIMES OVER • SAMPLING
DIGITAL FILTER
(MULTI-FUNCTION)
MULTI-LEVEL
∆ •∑
BPZ-CONTROL
MODULATOR
CR LPF
DAC
+AMP
3
VOUT
2 VSS
1 ON/XOFF
2 VDD
1 OUT
20 XTO
19 CLKO
18 ML/MUTE
17 MC/DM1
MODE
CONTROL
16 MD/DM0
RESET 15 RSTB
14 MODE
MULTI-LEVEL
∆ •∑
MODULATOR
13 D/C_L
CR LPF
DAC
+AMP 12 VOUTL
11 VCC