Tuner Section - Sony HCD-GX90D Service Manual

– Tuner Section –
TM1 TM1
( EXCEPT AEP,UK)
(AEP, UK)
FE3(AEP,UK)
1
ANT IN IF OUT
FM 75Ω OSC OUT
VT
G
FE2
(EXCEPT AEP,UK)
AM
8 ANT IN IF OUT
F OUT
VT
2
11
4
Q1
CF1
RF IF
7
AMP
8
5
Q2
+B
(FE2,3)
1
10
3
4
1
X51
4.5MHz
22
16
20
19
18
10
1
3
8
7
9 6
RB41
AM/FM IF MPX
IC11
CF2
1
FM IF L OUT
FM TUNED
R OUT
LEVEL
A+12V
A+12V
AM IF IN
PLL
RV11
IC51
AM MIX OUT
FM IF IN 12
FM 7 11 AM/FM
XIN AM OSC 15 24 OSC FM
12
VCO STOP 9 VCO STOP
XOUT IF REQ 8 10 IF REQ MUTE
DO
FM OSC DO 6
DI
AOUT DI 4
CL DECORDER
AIN CL 5
CE
PD CE 3
PLL IN OUT
DECORDER
IN
21 AM RF IN
TUNED
22 AFC
STEREO
23 AM OSC
FM-DET
9 VCC
A+12V
• RCH is omitted due to same as LCH
• Signal Path
: FM
: AM
23 23
AMP L-CH
13
Q11
14 R-CH
4
IFT11
2
A+12V
AEP,UK
IC81
DECODER
INT 16
AMP
18 4 13
Q81
X801
2 DATA
4.332MHz
17
14
16
6
7
T11
8
NULL
A+12V
HCD-GX90D/RV800D
MAIN
E
SECTION
(Page 24)
MASTER CONTROL
IC1104(1/3)
DI
26 ST-DOUT
DO
27 ST-DIN
CL
28 ST-CLK
CE
ST-CE
25
20 RDS-INT
21
RDS-DATA
TUNED
24
23 STEREO
22 ST MUTE