Schematic Diagram - Main Board (1/2) - Sony HCD-E301 Service Manual

HCD-E301
All manuals and user guides at all-guides.com
6-2. SCHEMATIC DIAGRAM – MAIN Board (1/2) – •
MAIN BOARD
(1/2)
FM FREQUENCY
COVERAGE
L103, TC101
FM TRACKING
C105 0.001
L103
C104
FM RF
0.001
C157
FM
0.1
LEAD
ANTENNA
ANT1
1
FM ANT
(0)
75Ω
COAXIAL
AM FERRITE-ROD
+
0.047 ANTENNA
0.047
AM OSC 50V
T102
L110, TC102
AM TRACKING AM FREQUENCY
COVERAGE
•
See page 21 for Waveform. See page 22 for IC Block Diagrams.
L104
TP10
(FM VT)
Q101
R112
FM OSC BUFFER
3.3k
5.4 +
(0.1)
0 (0.7)
18P
0.01
C111
10V
0.001
0
2SC1923
0.001
1.2k
6.8k
6.8k
0.015
0.015
3.9k
+
50V
+
50V
3.9k
0.001
4.5 (4.3) 4.5 (4.3)
4.5 (4.3)
+
2.2P
0
4.5 (5.6)
+
+
+
10.7MHz
0.3 (0.5)
5.2
(5.4)
+
450kHz
0.2
50V (0.4)
BUFFER
10.7MHz
4.7k
0.022 0.022
TP11
(AM VT)
14 14
IC101
IC102
FM/AM IF AMB
FM/AM PLL
MIX, MPX, DET, OSC
IC B/D
IC B/D
100p
0.001
0.0033 0.0033
Q103
0.022
STEREO/MONO
SWITCHING
0 (0.7)
Q102
1µH
FM/AM BAND
SELECT SWITCH
Q116, 209, 210
TUNER B+ SWITCH
+
470
16V
0.1
U U U
1 2 3
u u u
50V 5.6k
+
+
0.1
1
2.6
+
16V
7.2MHz
2.5
9.2
9.3
10V
+
8.5
0
0.7
0
CN101
8P
RDSCL
RDSDA
PLLCE
PLLDI
PLLCL
DSIPLAY
STOUT
BOARD
SIG
(Page 19)
ST
U
4
u
MAIN BOARD
1
(2/2)
(Page 15)
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
( ) : AM
A