Sony CDX-GT35U / CDX-GT39U / CDX-GT39UE Service Manual ▷ View online
CDX-GT35U/GT39U/GT39UE
25
IC804 BD3705FV-E2 (MAIN Board (3/3))
3
TO_LCH
1
OPEN
4
TO_RCH
5
CD_LCH
6
CD_RCH
7
AUX_LCH
9
AUX_RCH
8
AUX_GND
2
FIL C
VCC2
O/P FL
VCC
VCC
I2C_SCK
I2C_SIO
26
25
24
22
21
20
19
18
17
16
15
23
FADER
FADER
FADER
FADER
LOUDNESS
3 BAND P-EQ(TONE CONTROL)
VOLUME/MUTE
INPUT GAIN
GND
ISO AMP
10
OPEN
11
OPEN
GND
ISO AMP
12
ZAP BEEP L
13
ZAP BEEP R
GND
ISO AMP
14
OPEN
INPUT SELECTOR (2 SIGNAL END 2 STEREO (SO))
O/P FR
O/P RL
O/P RR
O/P SUB L
O/P SUB R
OPEN
PULL UP
OPEN
I2C BUS
LOGIC
FADER
LPF
GND
ISO AMP
LEVEL METER
(I2C)
OPEN
A-GND
28
27
CDX-GT35U/GT39U/GT39UE
26
Pin No.
Pin Name
I/O
Description
1
CYRIL_SEL
I
Cyril select signal input (L: No cyril select)
2
B-OUT_SEL
I
Black out setting signal input (L: No black out)
3
COL_SW_SEL
I
Key illumination initial color setting signal input (L: Amber)
4
ILLUMI_SEL
I
Key illumination voltage setting signal input (H: 10.4 V)
5, 6
NCO
O
Not used. (Open)
7
NOSE_SW
I
Front panel detach detect signal input
8 to 10
NCO
O
Not used. (Open)
11
RE_IN0
I
Rotary encoder signal input 0
12
RE_IN1
I
Rotary encoder signal input 1
13
X_OUT
O
Low speed operation clock signal output (32.768 kHz)
14
X_IN
I
Low speed operation clock signal input (32.768 kHz)
15
VCC
―
Power supply pin (+3.3 V)
16
VSS
―
Ground
17
C
―
Regulator reference capacitor connecting pin
18
UNISI
I
SONY-BUS data input Not used.
19
UNISO
O
SONY-BUS data output Not used. (Open)
20
UNISCK
O
SONY-BUS clock signal output Not used. (Open)
21
USB_ON
O
USB over current detect IC control signal output
22
I2C_SIO
I/O
I2C serial data input/output
23
I2C_SCK
O
I2C serial clock signal output
24
USB_OVER
I
USB over current detect signal input
25
BUS_ON
O
BUS ON signal output Not used. (Fixed at L is this set.)
26
SYS_RST
O
System reset signal output
27
CD_ON
I
CD mechanism servo power supply control request signal input
28
CDM_ON
I
CD mechanism deck power supply control request signal input
29
ACC_IN
I
Accessory power supply detect signal input
30
TEL_ATT
I
Telephone attenuator detect signal input (Except E model)
31
ATT
O
Audio mute control signal output
32
AVCC
―
A/D converter power supply pin (+3.3 V)
33
AVRH
―
A/D converter external reference power supply pin (+3.3 V)
34
RC_IN1
I
Rotary commander shift key signal input 1
35
AVSS
―
Ground for A/D converter
36
QUALITY
I
Not used. (Open)
37
VSM
I
S meter voltage detect signal input
38
SA_IN
I
Spectrum analyzer DC input Not used. (Open)
39
KEY_IN1
I
Key signal input 1
40
KEY_IN0
I
Key signal input 0
41
RC_IN0
I
Rotary commander shift key signal input 0
42, 43
NCO
O
Not used. (Open)
44
VSS
―
Ground
45
KEY_ACK0
I
Key acknowledge detect signal input (Rotary commander)
46
KEY_ACK1
I
Key acknowledge detect signal input (Front panel)
47
EXTATT_XEN
O
L is sent when electronic volume IC has the status of CD/USB (H is sent when it has the
status of other source)
status of other source)
48
LCD_CE
O
LCD driver chip enable signal output
49
LCD_SO
O
LCD driver serial data output
50
LCD_SCK
O
LCD driver serial clock signal output
51
MD2
I
Micon operation mode setting signal input (active: L)
52
MD1
I
Micon operation mode setting signal input (Fixed at H in this set)
53
MD0
I
Micon operation mode setting signal input (active: H)
54
RESET
I
Reset signal input
55
AREA_SEL2
I
Destination setting pin 2 (Fixed at L in except E model, Frequency select switch signal input in
E model)
E model)
56
AREA_SEL1
I
Destination setting pin 1 (L: Except Russian model, H: Russian model)
• IC Pin Function Description
MAIN BOARD (2/3) IC401 MB90F882PF-G-103E1 (SYSTEM CONTROL)
MAIN BOARD (2/3) IC401 MB90F882PF-G-103E1 (SYSTEM CONTROL)
CDX-GT35U/GT39U/GT39UE
27
Pin No.
Pin Name
I/O
Description
57
AREA_SEL0
I
Destination setting pin 0 (L: E model, H: Except E model)
58
WAKE_UP
O
CD mechanism deck micon wake up signal output
59
MC_RX
I
MC-BUS communication and CD mechanism deck micon communication RX input
60
MC_TX
O
MC-BUS communication and CD mechanism deck micon communication TX output
61
CLK_IN
I
Flash programming serial clock signal input
62
Z_MUTE
I
Z mute signal input
63
NCO
O
Not used. (Open)
64
TEST
O
Not used. (Open)
65
VCC
―
Power supply pin (+3.3 V)
66
VSS
―
Ground
67
NCO
O
Not used. (Open)
68
AMP_STB
O
Standby signal output for power regulator IC
69
DIAG
I
Condition signal input from power amp IC
70
VBUS_ON
I
VBUS power supply control signal input (L: VBUS OFF, H: VBUS ON)
71
SA_OUT
O
Spectrum analyzer serial data output
72
SA_CLK
O
Spectrum analyzer serial clock signal output
73
NCO
O
Not used. (Open)
74
TU_ATT
O
Tuner mute control signal output (Not used in this set)
75
NSMASK
O
Not used. (Open)
76
RDS_ON
O
RDS IC power supply control signal output Not used. (Open)
77
FLASH_EN0
I
Flash writer programming wake up signal input (Fixed at L)
78
FLASH_EN1
I
Flash writer programming wake up signal input
79 to 81
NCO
O
Not used. (Open)
82
TU_ATTIN
O
Not used. (Open)
83
BU_CHECK
I
Back up power supply detect signal input
84
EQ TYPE_SEL
I
EQ type select signal input (Fixed at L)
85 to 89
NCO
O
Not used. (Open)
90
VCC
―
Power supply pin (+3.3 V)
91
VSS
―
Ground
92
OSC_OUT
O
High speed operation clock signal output (7.92 MHz)
93
OSC_IN
I
High speed operation clock signal input (7.92 MHz)
94
NCO
O
Not used. (Open)
95
SIRCS
I
Remote control signal input
96
NCO
O
Not used. (Open)
97
BEEP
O
Beep signal output for power amplifi er IC
98
ZAPPIN
O
Zappin beep signal output
99
SYNC_OUT
O
DC/DC converter oscillation frequency control signal output
100
DD_ON
O
DC/DC converter power supply ON/OFF control signal output
28
CDX-GT35U/GT39U/GT39UE
SECTION 5
EXPLODED VIEWS
1
X-2320-690-3 PANEL
ASSY,
SUB
2
3-042-244-11 SCREW
(T)
3
X-2179-399-1 LOCK
ASSY
(S)
4
2-050-124-02 SCREW +BTT 2.6X5
5
A-1738-025-A MAIN BOARD, COMPLETE (AEP,UK)
5
A-1738-283-A MAIN BOARD, COMPLETE (GT35U:RU)
5
A-1738-284-A MAIN BOARD, COMPLETE (GT39UE)
5
A-1738-285-A MAIN BOARD, COMPLETE (E,AR)
6
1-776-527-11 CORD (WITH CONNECTOR) (ISO) (POWER) (AR)
6
1-831-838-11 CORD (WITH CONNECTOR) (ISO) (POWER)
(AEP,UK,RU)
6
1-833-974-11 CONNECTION CORD FOR AUTOMOBILE
(POWER) (E)
FU601
1-532-877-11 FUSE (BLADE TYPE) (AUTO FUSE) 10A
#1
7-685-792-09 SCREW +PTT 2.6X6 (S)
#2
7-685-790-01 SCREW +PTT 2.6X4 (S)
#3
7-685-793-09 SCREW +PTT 2.6X8 (S)
#4
7-685-794-09 SCREW +PTT 2.6X10 (S)
#5
7-685-134-19 SCREW +P 2.6X8 TYPE2 NON-SLIT
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
Note:
• -XX and -X mean standardized parts, so
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
original one.
• Items marked “*” are not stocked since
they are seldom required for routine ser-
vice.
vice.
Some delay should be anticipated when
ordering these items.
• The mechanical parts with no reference
number in the exploded views are not sup-
plied.
plied.
• Color Indication of Appearance Parts Ex-
ample:
KNOB, BALANCE (WHITE) . . . (RED)
R
R
Parts Color Cabinet’s Color
• Accessories are given in the last of the
electrical parts list.
5-1. MAIN SECTION
The components identifi ed by mark 0
or dotted line with mark 0 are critical for
safety.
Replace only with part number specifi ed.
or dotted line with mark 0 are critical for
safety.
Replace only with part number specifi ed.
• Abbreviation
RU
RU
: Russian model
AR :
Argentina
model
not supplied
not supplied
FU601
not supplied
front panel section
not supplied
not supplied
#1
#1
#1
#3
#4
#4
#5
#5
#3
#2
#1
A
A
B
B
1
2
3
4
6
A
5
MG-101Y-188//Q
not supplied
Ver. 1.1
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