Sony CDX-GT240 / CDX-GT242 / CDX-GT247EE Service Manual ▷ View online
CDX-GT240/GT242/GT247EE
21
• IC Block Diagrams
IC750 TDA8589AJ/N2/R1 (MAIN Board (1/3)) (GT247EE)
IC750 TDA8589AJ/N2/R1/M5 (MAIN Board (1/3)) (GT240/GT242)
IC750 TDA8589AJ/N2/R1/M5 (MAIN Board (1/3)) (GT240/GT242)
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-GT240/GT242/GT247EE
22
IC1 TEF6617T/V1/S470,518 (MAIN Board (2/3)) (GT247EE)
IC1 TEF6617T/V1/S470/M5,518 (MAIN Board (2/3)) (GT240/GT242)
IC1 TEF6617T/V1/S470/M5,518 (MAIN Board (2/3)) (GT240/GT242)
IC681 TK11133CSCL-G (MAIN Board (1/3))
1
2
3
5
4
VCONT
GND
NP
VIN
VOUT
CONTROL
CIRCUIT
OVER HEAT &
OVER CURRENT
PROTECTION
BANDGAP
REFERENCE
AMRFIN 1
AMRFDEC 2
FMIN2 3
FMIN1 4
LOUT 8
ROUT 9
MPXOUT 13
RSSI 14
XTAL2 15
XTAL1 16
GNDAUD 10
GNDRF 5
VCC2 6
AMRFAGC 7
AMIFAGC2 11
MPXIN 12
AMSELOUT2
32
AMSELOUT1
31
AMIFAGC1
30
AMSELIN2
29
PLL
25
VCODEC
24
VREF
20
SDA
19
SCL
18
GNDD
17
GND
23
AMSELIN1
28
DAV N
27
PLLREF
26
VCC1
22
VREGSUP
21
AM
TUNER
FM
TUNER
OUTPUT
PLL
TUNING
SYSTEM
I2C BUS
POWER
SUPPLY
STEREO DECODER
HIGH CUT
SOFT MUTE
NOISE BLANKER
SIGNAL
IMPROVEMENT
CONTROL
BANDWIDTH
CONTROL
RDS
DEMODULATOR
AND
DECODER
CDX-GT240/GT242/GT247EE
23
IC401 BD3447AFV-E2 (MAIN Board (2/3))
21
22
29
30
23
24
40
FIL
A-GND
SDA
SCL
OUT-FR
OUT-FL
OUT-RR
OUT-RL
SUB-R
SUB-L
SAOUT
SADA
MIN1
MIN2
EBIAS2
DS2-R
DS1-R
DS3-R
SACLK
39
38
37
VCC
36
27
28
25
26
31
32
33
34
35
20
19
12
11
18
17
1
BUS-R
BUS-L
TU-R
TU-L
CD-L
AUX-R
AUX-G
AUX-R
EP1
EN
EP2
FP1
FN2
EP2
EBIAS1
DS2-L
DS1-R
DS3-R
FN1
2
3
4
CD-R
5
14
13
16
15
10
9
8
7
6
I2C BUS
LOGIC,
VCO
FADER
FADER
FADER
HPF
LPF
GND
ISO AMP
GND
ISO AMP
180
°/0°
3 BAND P-EQ (TONE CONTROL)
7 BAND
SPECTRUM ANALYZER
/LEVEL METER
EFFECT
VOLUME/MUTE
INPUT GAIN
INPUT SELECTOR (3 SIGLE-END AND 3 STEREO IS O)
FADER
FADER
SPEANA
LVL METER
LVL METER
SPEANA
GND
ISO AMP
GND
ISO AMP
GND
ISO AMP
GND
ISO AMP
CDX-GT240/GT242/GT247EE
24
• IC Pin Function Description
MAIN BOARD IC501 R5F3640DDA21FA (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Description
1
LCD SO
O
Liquid crystal display panel serial data signal output
2
LCD CKO
O
Liquid crystal display panel serial clock signal output
3
NOSE SW
I
Front Panel detach/attach detect signal input “L”: With panel
4
SIRCS
I
Remote control signal input Not used.
5
UNISO
O
SONY BUS serial data signal output
6
UNISI
I
SONY BUS serial data signal input
7
UNISCK
O
SONY BUS serial clock signal output
8
BYTE
I
Connect to ground.
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
EQ SEL
O
Not used. (fi xed at “L”.)
19
BUIN
I
Back up power supply detection signal input
20
CDM ON
I
CD mechanism deck power supply control request signal input
21
Z MUTE
I
Mute signal input
22 to 27
NCO
O
Not used. (Open)
28
BEEP
O
Beep signal output to power amplifi er
29
I2C SCK
O
I2C serial clock signal output
30
I2C SIO
I/O
I2C serial data signal input/output
31
FW TXD
O
Flash write interface serial data signal output Not used. (Connect to VCC.)
32
FW RXD
I
Flash write interface serial data signal input Not used. (Connect to VCC.)
33
FW CLK
I
Flash write interface serial clock signal input Not used. (Open)
34
FW BUSY
O
Flash write interface serial busy signal output Not used. (Open)
35 to 40
NCO
O
Not used. (Open)
41
EPM
O
EPM signal output (Connect to ground.)
42
RC IN1
I
Rotary commander shift key signal input
43
SYSRST
O
System reset signal output
44
BUSON
O
BUS ON signal output
45
NCO
O
Not used. (Open)
46
CE
O
CE signal output
47 to 51
NCO
O
Not used. (Open)
52
CD ON
I
CD mechanism servo power supply control request signal input
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
Power amplifi er status signal input
58
AMPSTB
O
Standby signal output to power regulator IC
59 to 61
NCO
O
Not used. (Open)
62
VCC2
—
Power supply pin (+3.3V)
63
COL SEL
O
COL select signal output
64
VSS
—
Ground pin
65
ILLUMI SEL
I
Illumination voltage setting signal input for panel
66
NCO
O
Not used. (Open)
67
DIM SEL
I
Dimmer function setting signal input “L”: No dimmer
68
B OUT SEL
I
Black out setting signal input “L”: No block out
69
AREASEL 3
I
Destination setting pin 3
70
AREASEL 2
I
Destination setting pin 2
71
AREASEL 1
I
Destination setting pin 1
72
AREASEL 0
I
Destination setting pin 0
Click on the first or last page to see other CDX-GT240 / CDX-GT242 / CDX-GT247EE service manuals if exist.