Sony D-NF430 - Page 11

D-NF430/NF431
1111
D-NF430/NF431
• IC Block Diagram
– MAIN Board –
IC101 TB2132FNG
FM/TV RF IN
1
MIX OUT
3
GND
2
AGC
4
FM IFIN
5
FM
RF
TV
RF
FM/TV
MIX
AM
MIX
27
AM RFIN
17
PLL GND
21
PLL VCC
18
OUT1 (ST)
26
FM/TV OSC
28
RF VCC
29
TV RFOUT
30
FM RFOUT
FM
IF
AM IFIN
7
VCC
6
DET OUT
9
QUAD
8
MPX IN
10
LPF1
11
LPF2
12
AM
IF
AM
DET
FM
DET
L-CH
13
R-CH
14
XO
15
IF
BUFFER
AF
FM MPX
MUTE
OSC
25
AM OSC
16
XI
AM
OSC
1/2
1/4
1/16
AM
TV 1/8
FM 1/32
FM/TV 1/2
BUFFER
AM OSCIN
FM OSCIN
PROGRAM
COUNTER
REFERENCE
DIVIDER
IFIN
1/8
AM FM
FM/AM/TV
SWITCH
22
DATA
19
OUT2 (DO2)
20
DO
PHASE
COMPARATOR
23
CK
24
CE
PLL
AGC
IC201 TB2173FTG
34
MUTE SW
C-SW
OUTA
MODE
SWITCH
VOLUME
VOLUME/SWITCH
/PORT CONTORL
2
35
PW SW
36
RESET
37
CK
38
DATA
39
STB
43
P1
44
P2
40
VDD
41
PRE NFA
33
IN2A
31
PRE INA29
PRE INB28
VOL OUTA30
VOLUME
IN2B
26
IN1A
25
VOL OUTB
27
GND
32
PRE GND
MODE TC
23
+
–
+
–
42
PRE NFB
BEEP OUTA 1
BEEP OUTB 6
VCC2
7
BST TC
8
AGC DET
9
AGC IN 10
OUTC 3
PW GND
4
OUTB 5
ATTENUATOR
IN1B
24ATTENUATOR
22
MUTE TC
21
BEEP
20
VCC1
19
BIAS IN
18
BEEP
OUT ADJ
17
RF
16
LPF1
14
LPF2
12
BST NF
13
BIAS OUT
15
BIAS
+
–
+
–
+ –
BST AGC
BST OUT 11
PORT
IC250 XC6367A303MRN
VDD
ERROR AMP
PWM
COMPARATOR
VOUT
CE
GND
1
2
3
4
PWM/PFM
CONTROLER
RAMP WAVE
GENERATOR/
OSC
BUFFER/
DRIVER
PHASE
COMPENSATION
REFERENCE
VOLTAGE WITH
SOFT START/
CHIP ENABLE
+
–
+
–
EXT
5
IC603 XC6213B212NR
CE
1
VSS
2
VIN4
VOUT3
+
–
ON/OFF
CONTROL
CURRENT
LIMIT
VOLTAGE
REFERENCE
IC803, 841 XC6219B272MR
VOUT
5
NC
4
VIN 1
VSS 2
CE 3
VCC
VCC
+
–
ON/OFF
CONTROL
CURRENT
LIMIT
VOLTAGE
REFERENCE