Sony HCD-DX60AV, Руководство по обслуживанию

Страница: 30 / 76

HCD-DX60AV/RG70AV
30 30
5-8. SCHEMATIC DIAGRAM – MAIN Board (1/4) – • See page 44 for Wavefoms. • See page 44 for IC Block Diagrams.
IC B/D
IC B/D
IC B/D
MAIN BOARD
(3/4)
1
MAIN BOARD
(2/4)
2
1
2
4.1
4.8
8.7
0.1
10.0 10.2
2.6
2.7
0 0
(5) 0
0
(5) 0
(0.2) 5.3
1.9
(10) 0.1
0
1.1 1.1 2.1 5.3
2.6 (0)
1.7
2.1 2.1 1.7 (2.1)
2.1
5.4 5.4 0.1 1.9 (2.1) 2.1 2.1
1.3 (0)
1.9 1.6 1.6
4.6
5.1 5.1 5.3 0.4 5.4
2.1
1.6
8.0
1.0
1.6
8.0
1.0
0 (2.6)
(RG70AV : AEP)
(DX60AV/RG70AV : US)
(DX60AV/RG70AV : US)
DX60AV/RG70AV :
US
(RG70AV : AEP)
(RG70AV : AEP)
(DX60AV/RG70AV : US)
(RG70AV : AEP)
NULL
FM TUNED
LEVEL
(DX60AV/RG70AV : US)
(RG70AV : AEP)
(DX60AV/RG70AV : US)
(RG70AV : AEP)
(DX60AV/RG70AV : US)
(RG70AV : AEP)
(DX60AV/RG70AV : US)
(DX60AV/RG70AV : US)
(RG70AV : AEP)
(RG70AV : AEP)
(RG70AV : AEP)
*
2.9 2.9 5.4 0
2.9
2.7 2.7
2.3
5.4
(RG70AV : AEP)
(DX60AV/RG70AV : US)
(RG70AV : AEP)
2.1
2.9
0
U
2
u
U
3
u
U
4
u
U
5
u
U
6
u
U
7
u
U
8
u
U
9
u
U
10
u
U
11
u
U
12
u
U
13
u
U
14
u
U
15
u
I 81 i
I 82 i
I
83
i
I 84 i
I 85 i
JK101
ANTENNA
FM
75
Ω
AM
FM 75 Ω
COAXIAL
AM
MAIN BOARD (1/4)
IC102
FM/AM
PLL
Q101
2SC2410S
RF IF AMP
IC101
AM/FM
IF AMP, MPX
BUFFER
BUFFER
Q105
RDS BUFFER
IC103
RDS DECODER
QUAL
RCLK NC XO XI VDD2 VSS2 T1 T2
RDATA
VREF
MUX
VDD1 VSS1 VSS3
CMP
IC103 BU1924
0.01u
0.01u
0.01U
0.01U
0.01U
0.01U
0.01U
0.01U
0.47u/50V
0.001U 0.001U
0.01U
B+ SWITCH
0.01U
16V
UDZ-6.8B
0.01U 0.01U
0.01U
0.01U
* *
0.22U/50V
0.047U
*
C131, 132
0.015U
0.01U
0.047u
22u/50V
* C142
100P
470P
0.01U
0.01U
0.01U
FE102
0.01U
0.01U
0.01U
0.01U
0.1U
* C139
680P
220P
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
) : AM
(Page 31)
(Page 32)