Block Diagram - Tuner Section - Sony MDX-C5960R Service Manual

4-2. BLOCK DIAGRAM – TUNER Section –
FM/AM TUNER UNIT
TU1
J1
(FM/AM ANTENNA)
2 FM-ANT
1 AM-ANT
4 5 6 21
FILTER
5 1 2 3 28 24 25 15 14
10
OSCOUT
FM/AM PLL
IC100
OSCIN 9
16 13 12
69
(C5970: E model)
S701
FREQUENCY SELECT
MW 10K/FM 200K
100 BAND (9K-10K)
MW 9K/FM 50K
05
FM B+
AM B+
TUNER B+
8 10 9
13 11 20 22 19
(C5960R/C5970R)
RV1
FM RDS
S-METER
AM OSC
BUFFER
Q4
(C5970)
FM/AM SIGNAL
METER BUFFER
Q1
X1
10.25MHz
82 83 81 53
MASTER CONTROLLER
IC700 (1/4)
– 21 –
FM-LCH 18
FM-RCH 16 R-CH
MUTING
Q101
AM-DET 12
23 R-CH
D5
(C5960R/C5970R)
BUFFER
Q50
B+ SWITCH
BACKUP +5V
Q51
FM B+
14 7
RDS DECODER
IC102 SIGNAL
QUALITY
DECODER
SC
57 kHz OUT RDS/RDBS
CIN
CLOCKED
16 18 19
BAND-PASS DEMODULATOR
COMPARATOR
MPX
FILTER
& DECODER
MULTI
OSCILLATOR
LVIN
20 PATH 2
& CLOCK
DETECTOR
5 4 8
BAND-PASS
X2
FILTER
4.332MHz
IC101
Q5
NOISE DET
DISCHARGE
SWITCH
51 35 52 67
MDX-C5960R/C5970/C5970R
FM
E
(Page 23)
AM
F
(Page 23)
MUTING
CONTROL SWITCH
Q103
5
4
INTERFACE
REGISTER
IIC BUS
SLAVE
TRANSCEIVER
9 10
DATA, CLOCK
G (Page 23)
62
• SIGNAL PATH
: FM
: AM (MW/LW)
– 22 –