Sony CDX-GT620U / CDX-GT627UE / CDX-GT670U / CDX-GT670US Service Manual ▷ View online
CDX-GT620U/GT627UE/GT670U/GT670US
37
IC803 TPS40200DRG4 (MAIN Board (3/4))
IC804 TPS2051BDRG4 (MAIN Board (3/4))
IC805 TC7WH123FU(TE12R) (MAIN Board (3/4))
1
2
RC
GND
DRV
ISNS
VDD
SS
3
COMP
4
FB
SOFT-START
AND
OVERCURRENT
700mV
ENABLE E/A
E/A AND SS
REFFERENCE
REFFERENCE
7
8
6
5
UVLO
OSC
PWM
LOGIC
DRIVER
1
2
GND
OC
IN
CHARGE
PUMP
3
IN
4
EN
DRIVER
CURRENT
LIMIT
THERMAL
SENCE
UVLO
CS
8
7
7
5
6
OUT
OUT
OUT
OUT
OUT
8
VCC
7
RX/CX
6
CX
5
Q
1
A
2
B
3
CLR
4
GND
CDX-GT620U/GT627UE/GT670U/GT670US
38
IC801 NJM2387ADL3(TE2) (MAIN Board (3/4))
IC802 NJM2387ADL3(TE2) (MAIN Board (3/4))
IC802 NJM2387ADL3(TE2) (MAIN Board (3/4))
IC980 SN74LVC2G66DCUR (KEY Board)
(GT620U:CND/GT670U/GT670US)
IC980 SN74LVC2G66DCUR (KEY Board)
(GT620U:AEP,UK,RU/GT627UE)
(GT620U:CND/GT670U/GT670US)
IC980 SN74LVC2G66DCUR (KEY Board)
(GT620U:AEP,UK,RU/GT627UE)
1
2
3
4
5
CURRENT
LIMIT
THERMAL
PROTECTION
OVERVOLTAGE
PROTECTION
BANDGAP
REFERENCE
VIN
CONT
VOUT
VADJ
GND
3
1
1A
1B
2C
GND
VCC
1C
2B
2A
4
2
5
7
6
8
CDX-GT620U/GT627UE/GT670U/GT670US
39
• IC Pin Function Description
MAIN BOARD IC501 M3062LFGP-054FP (SYSTEM CONTROL)
MAIN BOARD IC501 M3062LFGP-054FP (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Description
1
FL DATA
O
Fluorescent indicator tube serial data signal output
2
FL CLK
O
Fluorescent indicator tube serial clock signal output
3
NCO
O
Not used. (Open)
4
SIRCS
I
Remote control signal input
5
VBUS ON
I
VBUS power supply control signal input “H”: VBUS on, “L”: VBUS off
6
DOORIND
O
Door indicator control signal output
7
NOSE SW
I
Panel detection signal input
8
BYTE
I
Connect to ground. (Pull down)
9
CNVSS
I
Flash write signal input Normally operation: “L”, Flash write: “H”
10
XIN
I
Low speed operation clock signal input (32.768kHz)
11
XOUT
O
Low speed operation clock signal output (32.768kHz)
12
RESET
I
Reset signal input
13
OSCOUT
O
High speed operation clock signal output (11.06MHz)
14
VSS
—
Ground pin
15
OSCIN
I
High speed operation clock signal input (11.06MHz)
16
VCC1
—
Power supply pin (+3.3V)
17
NMI
I
External pull up pin (fi xed at “H”.)
18
DAVN
I
RDS data block cycle detection signal input
19
BUIN
I
Back up power supply detection signal input
20
CDM ON
I
CD mechanism deck power supply control request signal input
21
NCO
O
Not used. (Open)
22
Z MUTE
I
Mute signal input
23
EJECT OK
O
Eject ok signal output
24
DOOR SW
I
Front panel open/close detection signal input
25
USB OVER
I
USB over current detection signal input
26
BEEP
O
Beep signal output to power amplifi er
27
USB ON
O
USB over current detection IC control signal output
28
SYNC OUT
O
DC/DC converter oscillator frequency control signal output
29
I2C SCK
O
I2C serial clock signal output
30
I2C SIO
I/O
I2C serial data signal input/output
31
TXD
O
Flash write interface serial data signal output
32
RXD
I
Flash write interface serial data signal input
33
SCLK
O
Not used in this set. (Open)
34
BUSY
O
Not used in this set. (Open)
35
MC TX
O
MC-BUS communication and mechanism IC communication TX output
36
MC RX
I
MC-BUS communication and mechanism IC communication RX input
37
NCO
O
Not used. (Open)
38
IPCHG
O
Not used in this set. (Open)
39
FL ON
O
Fluorescent indicator tube power supply control signal output
40
DD ON
O
DC/DC converter power supply on/off control signal output
41
EPM
O
Not used in this set. (Open)
42
SYSRST
O
System reset signal output
43
RCIN1
I
Rotary commander shift key signal input
44
WAKE UP
O
Mechanism IC wake up signal output
45
NCO
O
Not used. (Open)
46
CE
O
Not used in this set. (Open)
47 to 49
NCO
O
Not used. (Open)
50
IPDET
O
I-pod detection signal output
51
CD ON
I
CD mechanism servo power supply control request signal input
52
ILL IN
I
Illumination signal input for auto dimmer
53
TESTIN
I
Test mode detection signal input
54
TELATT
I
Telephone attenuate detection signal input
55
ACC IN
I
Accessory power supply detection signal input
56
ATT
O
Audio mute control signal output
Ver. 1.1
CDX-GT620U/GT627UE/GT670U/GT670US
40
Pin No.
Pin Name
I/O
Description
57
DIAG
I
Condition signal input from power amplifi er IC
58
AMPSTB
O
Standby signal output to power regulator IC
59
VOLATT
O
Electrical volume attenuate control signal output
60, 61
NCO
O
Not used. (Open)
62
VCC2
—
Power supply pin (+3.3V)
63
COL SEL
I
Key illumination change setting signal input
64
VSS
—
Ground pin
65
ILLUMI SEL
I
Illumination voltage setting signal input for panel “H”: 10.4V, “L”: 9V
66 to 68
NCO
O
Not used. (Open)
69
B OUTSEL
I
Black out setting signal input “H”: Block out
70
AREASEL 2
I
Destination setting pin 2
71
AREASEL 1
I
Destination setting pin 1
72
AREASEL 0
I
Destination setting pin 0
73, 74
NCO
O
Not used. (Open)
75
TUATTIN
I
Tuner mute zero cross detection signal input
76 to 79
NCO
O
Not used. (Open)
80
F AUX
O
Front AUX mute signal output Front AUX select: “H”
81
RE IN1
I
Rotary encoder signal input 1
82
RE IN0
I
Rotary encoder signal input 0
83
SAIN
I
Spectrum analyzer signal input
84
CYRIL SEL
I
Cyril select signal input “H”: Cyril select
85
NSMASK
O
Noise mask signal output
86
TUATT
O
Tuner mute control signal output
87
RDS ON
O
RDS IC power supply control signal output
88
QUALITY
I
Noise detection signal input
89
SADATA
O
Spectrum analyzer data signal output
90
SACLK
O
Spectrum analyzer clock signal output
91
KEYACK0
I
Key Acknowledge detection signal input (Rotary command signal input)
92
KEYACK1
I
Key Acknowledge detection signal input (Front panel signal input)
93
VSM
I
S meter voltage detection signal input
94
KEYIN1
I
Key signal input 1
95
KEYIN0
I
Key signal input 0
96
DAVSS
—
Ground pin for A/D converter
97
RCIN0
I
Rotary commander key signal input
98
AVRH
—
A/D converter external reference power supply pin (+3.3V)
99
DAVDD
—
A/D converter power supply pin (+3.3V)
100
FL CE
O
Fluorescent indicator tube chip enable signal output
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