Block Diagram -Tuner Section - Sony MDX-C6500X Service Manual

MDX-C6500X
3-3. BLOCK DIAGRAM — TUNER SECTION —
LO 12V
MD +5V
04
TUNER UNIT
TU601
CNJ600
ANTFM MPX
2 10
(ANTENNA)
1 ANTAM AM DET 8
AM IF
19
VDD (8V)
5
IF BW
11
VDD (5V) 16
FM AGC
4
SDA (EEP) 17
SCL (EEP) 18
S-METER 14
SDA 12
SCL
13
FM AGC 4
SDA (EEP) 17
SCL (EEP)
18
MD MECHANISM CONTROLLER
IC501 (2/2)
MD ON
SWITCH 10 MDM ON
Q701, 702
MD MECHA ON
65 MD ON
SWITCH
BATT
Q903, 913
MD +5V MD +5V
+11V REG
REG REG
Q920
Q703 Q922
Q403
+3.3V REG
+3.3V MD 5V
Q401
Q402
+3.3V REG
LO 12V
IC401
PJ400
BUS AUDIO IN
L R
–5 –6
ELECTRONIC VOLUME
IC701
A
3 AUX L OUT LF
MD
V OUT L 1 MD L
(Page 27)
SECTION
13 MPX OUT LR
11 AM
12 AM IF
14 LEVEL
TU +8V
15 MPIN
BACKUP +5V 20 SDA
TU +5V
21 SCL
18 MUTE
SYSTEM CONTROL
IC801 (1/2)
72 VOL MUT BEEP
3 FM AGC AMP ON
74 EEP SDA
AMP MUTE
75 EEP SCL
TEL MUT
ACC IN
2 S-METER
45 SDA
47 SCL TEST IN
DSTSEI
3 FM AGC
74 EEP SDA
EEP SCL
75
IC902 BU 5V
PW ON
RESET
S900
(RESET)
TU ON
A-ATT 67 70 MUT
LOCK 21 50 LOCK
41 UNI CLI
UNICKD 48 44 UNI CLO
UNISI 49 43 UNI SI
42 UNI SO
BUS ON 61 20 BUS ON
RESET 30 19 SYS RST
BU IN 60 28 BU IN
30 RESET
UNI SO 50
LIMK OFF 46
DOOR IND
BUS INTERFACE
IC802
10 BATT(L) CHECK
13 RESET
12 BUS ON
DATA
9
8
CLK
11
Q803
28 28
PJ400
AUDIO OUT REAR AUDIO OUT FRONT
L R L R
–3 –4 –1 –2
30
29
Q102 Q101
MUTE MUTE
MUTE
SWITCH
Q401, 402
35
69
71
65
ACC
64 CHECK
Q905
66
FM50K AM9K POWER SUPPLY
E MODEL
6 IC901
4 VCC AMP +B 2
BATT
FM200K AM10K
BU +B 5
SW802 (FREQUENCY SELECT)
99 1 AMP ON
GND 3
73
COM +8V TU +8V
COM +8V TU +8V
BATT REG REG
Q904 Q602
Q907
TU ON
SWITCH
PW ON
Q603
SWITCH
Q919
DOOR IND
25
SWITCH
Q908
3 BATT
2
Q801
8
1
DISPLAY
B
6 3 SIRCS
SECTION
6 5 2
(Page 29)
4 1
7
4 BATT
CNP801
BUS
CONTROL IN
POWER AMP
IC101
CNP501
5 1 FL+
12
3 9 FL–
9 2 RL+
11
8 10 RL–
4 FR+
12 FR–
4 STAND BY
R-CH
22 MUTE
3 RR+
11 RR–
16 BATT
BATT
F901
TEL
13 ATT
MUTE
Q916
7 ACC
BATT
BATT
CHECK
Q906
15 TEST
5 AMP REM
AMP +B
PULL UP +5V SWITCH 6 ANT REM
Q921
BACKUP +5V
TU ON
SWITCH
Q902
TU +5V
REG TU +5V
Q601
• Signal path
: FM
: AM
: MD