Sony D-NS313F Service Manual page 18

D-NS313F
• IC Block Diagrams
IC001 TB2132FNG
30 29 28 27 26 25
OSC
AM AM
MIX OSC
1/2 AM
TV 1/8
1/4
BUFFER
1/16
FM 1/32
TV
FM/TV 1/2
RF
FM/TV
MIX
FM
RF
AGC
1 2 3 4
IC901 SM6451BT-G-E2
RSTN 1
ADRS1 2 CHIP
ADDRESS
DECODER
ADRS2
3
DVDD 4
LOUT
5
LIN 6
7
AVDD
1/2VDD
VRL 8
24 23 22 21 20 19 18 17 16
AM OSCIN
PROGRAM PHASE
COUNTER COMPARATOR
FM OSCIN
REFERENCE
IFIN PLL DIVIDER
1/8
FM/AM/TV
SWITCH
AM FM
IF
FM
BUFFER
DET
AM
FM MPX
DET
FM AM
AF
MUTE
IF IF
5 6 7 8 9 10 11 12 13 14 15
16
MDT
INTERFACE
CONTROL
15 MCK
ATTENUATION
DECODER
14 MLEN
ATTENUATION
13
DVSS
CONTROL
12 ROUT
ATTENUATION
11
RIN
CONTROL
10
AVSS
REFERENCE
VOLTAGE 1/2VDD
9 VRR
CIRCUITS
IC401 BH6575FV-E2
VSYS
–
+
–
DC/DC
–
CONVERTER
+
MUTE1
SYSTEM
OSC
ON
CLK
SYSTEM MUTE34
OFF
IC471 TC7WH240FK
G1
1
A1 2
Y2 3
GND
4
18 18
REG
VG
CONV
VSYS
DETECT
30k 30k
RESET
30k 30k
IC301 BH3544F-FE2
8 7
8 VCC
16.9dB
7 G2
TSD
16.9dB
6 Y1
MUTE
5 A2
2
1
PRE-DR PRE-DR
PRE-DR PRE-DR
6 5
BIAS
3 4