HCD-GT22/GT44/GT55
40
40
HCD-GT22/GT44/GT55
7-16. SCHEMATIC DIAGRAM – MAIN Section (3/4) –
•
See page 58 for IC Block Diagrams.
0
3.2
0
0
0
3.2
3.2
3.2
0
0
0
0
3.3
0
0.1
0.1
0
0
3.3
0
0
0.1
0
0.1
0
0
0
3.2
0.1
3.3
3.2
0.1
3.3
3.3
0
0
0
0
0
0
3.2
2.6
0.7
2.6
0.1
3.3
3.3
0.1
3.3
100
R354
100
R303
100
R342
100
R341
10V
1000
C301
100
R353
100
R343
10EDB40-TB3
D301
100
R346
100
R304
100
R344
100
R352
100
R345
10EDB40-TB3
D302
KTA1271Y-AT
Q302
10k
R302
470
R301
100
R326
100
R325
0.1
C361
0.1
C362
0.1
C363
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
27P
CN302
AVDD+3.3V
R-OUT
DAC-GND
L-OUT
A-GND
CD-RST
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
REQ
SBSY
D-GND
D-OUT
DVDD+3.3V
VM+7V
M-GND
M-MUTE
LRCK-IN
BCK-IN
A-IN
ST-REQ
GATE
CLK
DATA
100
R306
100
R311
100
R308
100
R309
100
R307
100
R305
100
R310
100
R324
100
R322
100
R321
100
R323
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TC74VHC157FT(EKJ)
IC303
14
13
12
11
10
9
8
7
123456
TC74HC4066AFT(EL)
IC301
14
13
12
11
10
9
8
7
123456
TC74HC4066AFT(EL)
IC302
100
R328
100
R330
100
R332
10k
R334
KTA1271Y-AT
Q304
RT1N431C-TP-1
Q303
470
R333
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
21P
CN301
DATA
CLK
DO(RST)
DI(CTS)
USB-SO(TXD)
USB-SI(RXD)
BCK
A-IN
GATE
REQ
ST-REQ
USB-RST
LRCK
DVSS
DVDD+3.3V
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
100
R327
100k
R355
100k
R312
2SC3052EF-T1-LEF
Q301
10k
R361
10k
R362
CL001
E-3
E-2
E-1
SENS
TM-F
TM-R
LM-F
LM-R
OPEN-SW
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
REQ
CCE-Z
BUCK-Z
BUS3-Z
BUS2-Z
BUS1-Z
BUS0-Z
DO
SO
CCE-Z
BUCK-Z
CCE-U
BUCK-U
BUS2-U
BUS0-U
BUS1-U
BUS2-U
BUS3-U
BUCK-U
CCE-U
CD-RST
REQ-Z
SBSY
M-MUTE
U-POWER
REQ-U
BUS3-U
BUS1-U
BUS0-U
REQ-U
REQ-Z
BUS1-Z
T-CLK
T-DO
T-CE
SI
DI
USB-RST
BUS2-Z
BUS3-Z
BUS0-Z
CD-POWER
SEL2
SEL1
RDS-CLK
T-DI
T-TUNED
1
5
2
6
4
7
35
36
37
38
MAIN BOARD (3/4)
IC303
DATA SELECTOR
IC302
BUS SWITCH
IC301
BUS SWITCH
A
10
1
2
J
H
B
13
11
L
C
7
8
I
14
F
9
6
K
4
15
16
3
G
D
5
17
E
12
Q303,304
B+ SWITCH
B+ SWITCH
Q301,302
+9V
TUNED
PLL_CE
AM
THE ASSEMBLED
FM75
TUNER-R
PLL_DI
SUPPLID WITH
BLOCK
TU-GND
TUNER-L
TUNER(FM/AM)
PLL_DO/STEREO
PLL_CLK
E-2
OPEN_SW
E-3
D+3.3V
TBL_ADDRESS_SENS
LM-R
E-1
LM-F
TM-F
TM-R
M-GND
M-GND
M+9V
13
1
1
9
(COAXIAL)
ANTENNA
(
)
Ω