Sony CDX-GT55IP / CDX-GT55IPS / CDX-GT620IP / CDX-GT62IPW Service Manual ▷ View online
CDX-GT55IP/GT55IPS/GT62IPW/GT620IP
33
• IC Block Diagrams
IC300 TDA8588AJ/N2/R1/M5 (AEP, UK) (MAIN Board (1/4))
IC300 TDA8588AJ/N2/R1 (EXCEPT AEP, UK) (MAIN Board (1/4))
IC300 TDA8588AJ/N2/R1 (EXCEPT AEP, UK) (MAIN Board (1/4))
MUTE
MUTE
ENABLE
LOGIC
STANDBY/
MUTE
BATTERY
DETECTION
CHIP DETECT/
DIAGNOSTIC
PROTECTION/
DIAGNOSTIC
SWITCH
REGULATOR
SWITCH
REFERENCE
VOLTAGE
LOADDUMP
PROTECTION
TEMPERATURE
PROTECTION
BACK-UP
SWITCH
REGULATOR
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
TAB
OUT–FL–
OUT–FL+
OUT–RL–
OUT–RL+
IN–RL
S–GND
IN–RR
OUT–RR+
OUT–RR–
OUT–FR+
OUT–FR–
DIAG
ANT–REM
AMP–REM
SERVO3.3V
MECH6V
VP
BU+B
SDA
SCL
VP2
PGND1
SVR
IN–FL
IN–FR
BEEP
PGND3
VP1
STB
PGND4
RST
CRES
AUDIO+B
GND
PANEL+B
CBU
FL
RL
RR
VP
FR
I
2
C BUS
CDX-GT55IP/GT55IPS/GT62IPW/GT620IP
34
IC50 TDA7333013TR (AEP, UK) (MAIN Board (2/4))
IC401 BD3442FS-E2 (MAIN Board (2/4))
VDDA
INTERPOLATOR
RAM
BUFFER
&
CONTROL
LOGIC
TEST LOGIC
&
PIN MUX'S
I
2
C/SPI
INTERFACE
BAND PASS
FILTER
SIGMA DELTA
CONVERTER
SINC4
FILTER
REF3
REF2
REF1
VSS
VDDD
RESETN
TM
1
MPX
16
CSN
SDAOUT
RDSREG
3
INTN
MPX
SINC4REG
SDAIN
SCK
SCK
SPI
TESTREG
TESTREG
14
2
3
4
5
6
7
8
INTN
15
SA
13
SDA
12
SCL
11
OSCILLATOR
XTO
10
XTI
9
RDS
DEMODULATOR &
SYNCHRONIZATION
2
1
2
BUS-RCH
100k
100k
100k
100k
100k
100k
250k
250k
250k
BUS-LCH
TU-RCH 3
4
TU-LCH
5
CD-RCH
6
CD-LCH
7
AUX-RCH
8
AUX-GND
9
AUX-LCH
10
DS3-L
11
DS1-L
12
DS2-L
13
EBIAS
14
DS2-R
15
DS1-R
16
DS3-R
26 OUT-FR
27 VCC
VCC
VCC2
28 MUTE
29 SCL
30 SDA
31 GND
32 FIL
INPUT
SELECTOR
VOLUME1
/MUTE
VOLUME2
I2C
BUS
LOGIC
TREBLE
/BASS
/MIDDLE
SPECTRUM
ANALYZER
FADER
25 OUT-FL
24 OUT-RR
23 OUT-RL
FADER
FADER
22 SUBOUT-R
21
20
SUBOUT-L
19
ADJ
18
SAOUT
17
SADA
SACLK
FADER
FADER
LPF
EFFECT
INPUT
GAIN
FADER
CDX-GT55IP/GT55IPS/GT62IPW/GT620IP
35
IC402 NJM2794V(TE2) (MAIN Board (2/4))
IC801 NJM2387ADL3(TE2) (MAIN Board (3/4))
1
OUT R
2
NC
3
GND
7
OUT L
5
VCC
6
NC
4
VREF
14 IN R+
13 NC
12 IN R
IN L+
NC
IN L
8
10
9
11 NC
1
2
3
4
5
CURRENT
LIMIT
THERMAL
PROTECTION
OVERVOLTAGE
PROTECTION
BANDGAP
REFERENCE
VIN
CONT
VOUT
VADJ
GND
CDX-GT55IP/GT55IPS/GT62IPW/GT620IP
36
• IC Pin Function Description
MAIN BOARD IC501 M3062LFGP-052FP (SYSTEM CONTROL)
MAIN BOARD IC501 M3062LFGP-052FP (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Description
1
LCD SO
O
Liquid crystal display panel serial data signal output
2
LCD CLK
O
Liquid crystal display panel 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 Not used in this set. (Pull up)
26
BEEP
O
Beep signal output to power amplifi er
27
USB ON
O
USB over current detection IC control signal output Not used in this set. (Pull down)
28
NCO
O
Not used. (Open)
29
I2C SCK
O
I2C serial clock signal output
30
I2C SIO
I/O
I2C serial data signal input/output
31
MT TXD
O
Flash write interface serial data signal output
32
MT RXD
I
Flash write interface serial data signal input
33
NCO
O
Not used. (Open)
34
NCO
O
Not used. (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
NCO
O
Not used. (Open)
39
IPODCHG
O
I-pod charge control signal output
40
NCO
O
Not used. (Open)
41
NCO
O
Not used. (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 to 49
NCO
O
Not used. (Open)
50
IPDET
O
I-pod detection signal output “H”: I-pod in
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
57
DIAG
I
Condition signal input from power amplifi er IC
58
AMPSTB
O
Standby signal output to power regulator IC
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