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WX-GT77UI/GT78UI/GT78UIM
WX-GT77UI/GT78UI/GT78UIM
20
20
A
B
11
D
G
2
12
9
13
6
F
I
3
4
14
H
7
E
C
8
J
10
1
5
1
CN2
BOARD
SUB
A
BOARD
(1/3)
1
MAIN
3
MAIN BOARD (3/3)
IC B/D
IC B/D
8.3
(6.5)
8.3
(6.5)
8.3
1.2
0
0
2.6
(6.5)
(2.9)
(1.2)
(4)
(1.2)
2.2
5.6
8.3
6.9
3.4
3.1
3.1
6
6
(5)
(3.6)
(2)
3.8
3.8
(1.8)
8.3
(4.2)
(1.4)
(2.9)
(2.9)
0
0
3.1
3.1
0
0.4
3
3.9
(1.1)
0.8
4.1
4.1
4.1
4.1
3.7
3.7
3.5
3.4
3.8
3.8
3.8
3.8
3.8
3.8
4.1
4.1
4.1
4.1
0
0
0
4.1
4.1
4.1
4.1
4.1
8.3
3.1
3.1
3.7
0
0
0
0
0
0
0
0
0
0
1
*
2
(US)
*
(EXCEPT US)
(US)
(EXCEPT US)
2
*
2
*
*
1
*
2
0.1
C416
1
C922
1
C921
0
R109
0
R110
0
R111
1000p
C919
R112
10k
L901
470
R914
470
R915
3.3k
R406
3.3k
R408
4700p
C410
4700p
C413
4700p
C918
4700p
C917
0.033
C411
0.033
C412
50V
10
C414
50V
10
C909
50V
10
C910
50V
10
C911
100p
C902
100p
C903
100p
C904
100p
C905
100p
C901
100p
C906
1k
R903
1k
R904
10k
R905
10k
R906
220
R909
220
R911
1
C401
1
C402
1
2
3
4
5
5P
CN203
USB_SHIELD
GND(USB)
D-(USB)
D+(USB)
VBUS(USB)
GND(USB)
D-(USB)
D+(USB)
VBUS(USB)
ABSORBER, CHIP
SURGE
D914
ABSORBER, CHIP
SURGE
D913
12k
R917
12k
R916
220
R908
50V
10
C907
220
R907
50V
10
C908
1
C407
47p
C408
LTC614TKFP8T146
Q901
LTC614TKFP8T146
Q902
LTC614TKFP8T146
Q903
LTC614TKFP8T146
Q904
LTC614TKFP8T146
Q905
3.3k
R407
3.3k
R409
R218
0
MAZ8068GMLS0
D203
C912
4700p
1
C405
1
C406
MAZ8068GMLS0
D205
MAZ8068GMLS0
D204
CAM001
JL035
JL045
JL036
JL046
JL037
JL038
JL029
JL039
JL030
JL040
JL031
JL041
JL032
JL042
JL033
JL043
JL034
JL044
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
CN902
18P
DOOR-IND
DOOR-SW
+B(LCD-LED)
SIRCS
KEY0
LCD_DATA
RE1
RE0
LCD-CLK
LCD-CE
KEY1
GND(KEY)
AUX-L
AUX-GND
AUX-R
GND(LCD-LED)
GND(LCD-LED)
RESET
1
2
3
3P
CN901
SUB_OUT
GND
SUB_OUT
50V
2.2
C417
50V
2.2
C418
1
2
3
3P
CN202
D+(USB)
D-(USB)
GND(USB)
D-(USB)
GND(USB)
L401
L402
2.2k
R918
50V
2.2
C923
220
R910
JW200
D915
UDZSUSTE-176.8B
10k
R922
10k
R919
10k
R921
10k
R923
10k
R920
47k
R404
0.1
C409
1
2
3
4
L206
R221
22
R220
22
100p
C99
10V
220
C415
1.5k
R403
L1
G G
R1
L2
R2
R3
L3
J901
40
39
38
37
36
35
34
7
6
5
4
3
2
1
33
32
30
31
8
27
28
29
9
10
11
12
13
14
24
17
25
26
23
22
21
20
19
18
15
16
BD3447AFV-E2
IC401
BUS_LCH
BUS_RCH
TU_LCH
TU_RCH
CD_LCH
CD_RCH
AUX_LCH
AUX_GND
AUX_RCH
NCO
NCO
NCO
ZAP_BEEP
NCO
NCO
ZAP_BEEP
EBIAS
DS2_L
DS1_L
DS3_L
DS3_R
DS1_R
DS2_R
EBIAS
NCO
NCO
SA_CLK
SA_DA
SA_OUT
OUT_SRCH
OUT_SLCH
OUT_RRCH
OUT_RLCH
OUT_FRCH
OUT_FLCH
VCC(8.5V)
I2C_SCK
I2C_SIO
GND
FIL
JW113
C98
1000p
JW147
100
R13
C6
3.3uH
L1
VR1
JW148
0.01
C23
32
31
30
29
28
27
123456
26
25
24
789
23
22
21
20
10
11
12
19
18
17
13
14
15
16
IC001
AMRFIN
AMRFDEC
FMIN2
FMIN1
GNDRF
VCC2
AMRFAGC
LOUT
ROUT
GNDAUD
AMIFAGC2
MPXIN
MPXOUT
RSSI
XTAL2
XTAL1 GNDD
SCL
SDA
VREF
VREGSUP
VCC1
GND
VCODEC
PLL
PLLREF
TEST
AMSELIN1
AMSELIN2
AMIFAGC1
AMSELOUT1
AMSELOUT2
JW126
16V
47
C28
22
R12
0.01
C19
1
C21
JW137
JW102
0.1
C9
0.1
C27
R15
0.01
C8
0
R4
1000p
C1
4.7k
R11
0.01
C20
470k
R1
0.1
C24
0.1
C26
J1
0.01
C22
4MHz
X1
0.1
C17
33k
R10
100
R14
L6
1
2
3
4
6
0.1
C25
R3
1000p
C5
470k
R2
68k
R6
CAM002
2.2
C13
12p
C18
0.22
C12
6p
C7
0
R5
560uH
L8
560uH
L7
L2 2.2uH
R16
0.47
C16
JW138
A001
(CHASSIS)
PANEL+B
A-GND
3.3V
MUTE
8.5V
IN-RL
IN-RR
HOT_GND
IN-FL
IN-FR
HOT_GND
CD-RCH
CD-LCH
RESET
VBUS
3.3V
A-GND
A-GND
SA_CLK,SA_DA,SA_OUT
,
DA
VN,RDS_ON,VSM
I2C_SCK_C,I2C_SIO_C
DOOR_SW
,KEY_IN0,KEY_IN1,
LCD_CE,LCD_SCK,LCD_SO,
RE_IN0,RE_IN1,SIRCS
I2C_SIO_C
I2C_SCK_C
SA_OUT
SA_DA
SA_CLK
ZAPPIN_BEEP
DOOR_SW
SIRCS
LCD_SO
RE_IN1
RE_IN0
LCD_SCK
LCD_CE
VSM
I2C_SIO_C
I2C_SCK_C
KEY_IN1
KEY_IN0
DAVN
IC401
ELECTRONIC VOLUME
PHASE LOCKED LOOP(PLL)
IC001
MAIN BOARD (2/3)
FM MIX
(ANTENNA)
L
R
-1
-2
-4
-3
-6
-5
REAR
FRONT
AUDIO OUT
AUDIO IN
BUS
(CHASSIS)
SUB OUT
(MONO)
( )
Q901-905
MUTE
ZAPPIN_BEEP
TEF6607T/V4/S470,518
ABSORBER,CHIP SURGE
L
R
R
L
6P
(CHASSIS)
(USB)
(MG-101Z)
(1/2)
CD MECHANISM
UNIT
9p
C6
R3,15,16
10p
0
FERITE
FERITE
4-5. SCHEMATIC DIAGRAM – MAIN Section (2/3) –
• See page 17 for Waveforms. • See page 28 for IC Block Diagrams.
(Page 23)
(Page 21)
(Page 19)
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