Read Sony CMT-EP50LIV / HCD-EP50LIV Service Manual online
HCD-EP50LIV
15
15
AM
RF AMP
AM
OSC
AM
MIX
L. P. F
FM/AM PLL
U2
AM/FM
IF BUFFER
DECODER
• SIGNAL PATH
: FM
: AM
X2
7.2MHz
AMIN
IFIN
IF-BUFF
MUTE
AM/FM
VCO-STOP
IO1
AOUT
AIN
FMIN
20
1
14
13
18
SWALLOW
COUNTER
UNIVERSAL
COUNTER
CCB
INTERFACE
REFERENCE
DIVIDER
UNLOCK
DETECT
12 BIT
PROGRAMMABLE
DIVIDER
PHASE
DETECTOR/
CHARGE PUMP
SHIFT REGISTER & LATCH
1/2
DI
CL
CE
DO
DA IN
STATION
STEREO
FM ON/OFF
ST/BEAT
TU-L
R-CH
R-CH
OUT L
AMP-
IN L
IN L
AMP-
OUT L
OUT R
TU-R
CLOCK
PLL CE
DA OUT
PD
XIN
XOUT
3
4
2
5
11
BO1
6
10
17
16
• R-ch is omitted due to same as L-ch.
CN12
CN13
T6
AM RF
T8
AM OSC
D5
CF3
10.7MHz
AM-RF
-IN
-IN
AM-IF
FM-IN
FM-DET
OUT
MPX-IN
AM-DET OUT
AM-MIX
AM-OSC
OSC.BUFF
FM-SD.ADJ
1
23
2
30
4
27
29
TC1
DET
AM IF
AGC
CF4
450kHz
FM
DET
FM IF
24
22
20
21
19
17
MUTING
13
15
14
TUNED
6
STEREO
7
FM/AM IF AMP,
AM RF AMP/MIX/OSC,
FM/AM DET, MPX
U1
E
(Page 17)
C
(Page 16)
D
(Page 18)
B
(Page 17)
FM ANT
75
Ω
COAXIAL
AM ANT
AM FREQUENCY
COVERAGE
T8
AM TRACKING
T6, TC1
AM IF
T1
FM DET
9
T5
FM DET
L. P. F.
T4
L. P. F.
T2
FM/AM BAND
SELECT SWITCH
Q3
STEREO/MONO
SWITCHING
Q17
1
FM RF
AMP
PHASE
DETECTOR/
CHARGE PUMP
FM RF
IN
MIX
OUT
3
13
FM
OSC
FM OSC
BUFFER
BUFFER
Q901
15
FM RF
OUT
FM MIX
FM OSC
D905
D906
TC901
B. P. F.
BPF901
T901
FM IFT
L901
FM OSC
L902
FM RF
FM FREQUENCY
COVERAGE
L901
FM TRACKING
L902, TC901
FM RF AMP/MIX/OSC
IC901
SECTION 6
DIAGRAMS
6-1.
BLOCK DIAGRAM – TUNER Section –
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