Block Diagram - Tuner Section - Sony D-NF400 Service Manual

Q Q
3 7 6 3 1 5 1 5 0
6-2. BLOCK DIAGRAM – TUNER Section –
CT3, L3
AM TRACKING
L3
AM FERRITE-BAR
ANTENNA
CT3
Q3
D1
NF400 : US, CND/
NF401 : E92, MX
D2
D3
D5
(NF400 : US, CND)
NF400 : AEP, UK, EE, E13, AUS/
T E NF401 : E13
L 1 3 9 4 2 2 9 6 5 1 3
CONVERTER
Q86, T81
LOW-PASS
FILTER
Q84, 85
• SIGNAL PATH
: FM
: AM
Abbreviation
AUS : Australian model
CND : Canadian model
E13 : 220-230 V AC area in E model
E92 :120 V AC area in E model
EE : East European model
MX : Mexican model
w w w
.
FM RF AMP, FM/AM MIX AMP, FM/AM OSC,
2 FM-RF_I
FL1
FM/AM IF AMP, FM/AM DET, MPX
BPF
IC1
1 TV-RF_I
CF2
(NF400 : US, CND)
FM-MIX_O 4
CF1
AM-MIX_O 5
28 AM_BP
FM-RF_O
29
L1
QUAD 11
FM RF FM TRACKING
X1
27 AM-RF_I
MODE1 21
24 FM/TVOSC
L2
DET_O 12
TV/FM OSC
Q8
30 TV-RF_O
L5
TV RF
MODE2 22
TV TRACKING
OSC_O 23
L4
AM OSC
IF-COUNT_O 19
25 AMOSC
14 LPF
REQ-SW 20
DC/DC
B+ SWITCH
V IN
Q4,11
B+ SWITCH
VCPU
Q40, 41
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i
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8
L_O 16
FM-IF_I
8
R_O 15
10 AM-IF_I
DTS MICRO CONTROLLER
IC3
TUMUTE-O 62
53
BAND-CTRL1-O
23 RE1
EEP-CS_O 32
52 BAND-CTRL2-O
CS_O 27
71 TV/FM/AM_I AO_O 26
64 IF_I
Q71
CDU-SDO_O
47
CDU-SDI_I 46
60 +B ON/OFF_O
CDU-SCK_I 48
61
IF-REQ_O
ACK-CD_O 54
Q Q
3 7 6 3
LCD-REQ_I 28
CD-ON_I 39
MONO/LOCAL-
55
RESET_I 73
CTR_O
TU-ON_O 38
AD-KEY_I 42
KEY2 37
65 EO(D01)_O
TUBEEP_O 49
XTU-BASS1-O 58
XTU-BASS2-O 59
VOL-PWM_O 50
75 X_I
X61
TU HOLD_I 51
75kHz
XLID-OPEN_I 29
74 X_O
BATT-I 43
HIDC-I 44
S2001 - 2005
KEY2
FUNCTION
KEY
u 1 6 3
S806, 809, 2007 - 2011
KEY1
FUNCTION
KEY
.
13 13
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2 4
9 9 8
FM ANT
TU-L
TU-R
TU MUTE
EEPROM
IC62
1 CS
3 DI
4 DO
2 SK
SYSTEM CONTROLLER
IC801(2/2)
22 DTS_SDTI LCD_AO 69
21 DTS_SDTO
AD6 50
23 DTS_SCK
AD7 51
35 ACKCD_I
44
AD0
1 5 1 5 0 16 8 9 2 4
LCDREQ_O
49
AD5
55 CDON_O
59 DTS_RST-O XRD_O 71
XWR_O 72
68 TUON_I
LCD-XRST_O 73
XCS_O 61
96 AD_KEY1
97 AD_KEY2
36 WAKE_I
54
TU_POWERON_O
B+ SWITCH
TU_VCC V IN
Q10, 12
m
c o
Q802
D-NF400/NF401
2
9 9
A
(Page 12)
CS
A0
D6
D7
LIQUD
D0
CRYSTAL
9 8 2 9 9
DISPLAY
D5
LCD2001
RD
WR
RES
PS
VCPU
TU BEEP
TU BASS1
TU BASS2
TU_VOL
B
HOLD
(Page 12)
OPEN
BATMNTT
C
TU_DCINMNT
(Page 12)