Sony CDX-GT310 Service Manual ▷ View online
13
CDX-GT310
SECTION 3
DIAGNOSIS FUNCTION
Description of the Diagnostics function:
1. Setting the Diag display mode
With the power off, press the [4] button, [5] button, and [4] button
on the set body or the remote control (for more than 2 seconds)
in turn.
on the set body or the remote control (for more than 2 seconds)
in turn.
2. Canceling the Diag display mode
During the Diag function mode, press the [OFF] button.
3. Initial display in the Diag display mode.
Just when the Diag mode is entered, “reset count” is displayed.
The display mode is switched by each rotation of
The display mode is switched by each rotation of
SEEK +/
M
>
or SEEK – /
.
m
keys.
4. Contents of each display mode
4-1. Reset count display mode
4-2. Reset count by watchdog timer display mode
4-3. Number of connected units display mode
The display mode is switched by each rotation of [2/ALBM+] or
[1/ALBM--] keys during the number of connected units display mode.
[1/ALBM--] keys during the number of connected units display mode.
4-4. Operating hours display mode
Reset count display
OFFSET/FAILURE error display
CD error information display
Operating hours display
Number of connected units display
Reset count by watchdog timer display
0 1 X X
0 2 X X
0 3 1 X X X
0 4 X X X X
0 5 1 X X
0 6 1 X X X X X
Reset count
(in hexadecimal format)
(in hexadecimal format)
Diag code
01: Reset count
01: Reset count
0 1 X X
Reset count
(in hexadecimal format)
(in hexadecimal format)
Diag code
02: Number of resets by watchdog timer
02: Number of resets by watchdog timer
0 2 X X
Show the number of connected units for
CD-C, MD-C and XM respectively from
the rightmost (in hexadecimal format).
CD-C, MD-C and XM respectively from
the rightmost (in hexadecimal format).
Recency of information
1-3: 1 represents the latest.
1-3: 1 represents the latest.
Diag code
03: Number of connected unit.
03: Number of connected unit.
0 3 1 X X X
No. of connected units history 1 (latest) display
No. of connected units history 3 display
No. of connected units history 2 display
0 3 1 X X X
0 3 2 X X X
0 3 3 X X X
Operating hours
(in hexadecimal format)
(in hexadecimal format)
Diag code
04: Operating hours
04: Operating hours
0 4 X X X X
14
CDX-GT310
4-5. CD error information display mode
4-5-1. Error description
4-5-1. Error description
4-5-2. Disc type and operating hours
The display mode is switched by each rotation of [2/ALBM+] or
[1/ALBM--] keys during the CD error information display mode.
[1/ALBM--] keys during the CD error information display mode.
4-6. OFFSET/FAILURE error display mode
The display mode is switched by each rotation of [2/ALBM+] or
[1/ALBM--] keys during the OFFSET/FAILURE error display mode.
[1/ALBM--] keys during the OFFSET/FAILURE error display mode.
Error description
(in hexadecimal
format)
(in hexadecimal
format)
Recency of information
1-3: 1 represents the latest.
1-3: 1 represents the latest.
Diag code
05: CD error information
05: CD error information
0 5 1 X X
Operating hours
Recency of information
1-3: 1 represents the latest.
1-3: 1 represents the latest.
Diag code
05: CD error information
05: CD error information
Disc type
0 5 1 X X X X X
CD error info history 1 (latest)
Error description plus error details display
Error description plus error details display
CD error info history 3
Disc type plus operating hours display
Disc type plus operating hours display
CD error info history 3
Error description plus error details display
Error description plus error details display
CD error info history 2
Disc type plus operating hours display
Disc type plus operating hours display
CD error info history 2
Error description plus error details display
Error description plus error details display
CD error info history 1 (latest)
Disc type plus operating hours display
Disc type plus operating hours display
0 5 1 X X X X X
0 5 2 X X
0 5 2 X X X X X
0 5 3 X X
0 5 3 X X X X X
0 5 1 X X
Operating hours
Recency of information
1-3: 1 represents the latest.
1-3: 1 represents the latest.
Diag code
06: OFFSET/FAILURE
06: OFFSET/FAILURE
Error description
(0: OFFSET, 1: FAILURE)
(0: OFFSET, 1: FAILURE)
0 6 1 X X X X X
OFFSET/FAILURE error history 1 (latest) display
OFFSET/FAILURE error history 3 display
OFFSET/FAILURE error history 2 display
0 6 2 X X X X X
0 6 3 X X X X X
0 6 1 X X X X X
Error information
Indication
Description
1X
SERVO ERROR
3X
LOADING ERROR
4X
TRACK JUMP
5X
TEXT ERROR
FX
MECHA ERROR
Disc type
Indication
Disc type
0
MP3
1
WMA
2
AAC
3
ATRAC
8
CD/DA
F
UNKNOWN
15
15
CDX-GT310
CDX-GT310
4-1. BLOCK DIAGRAM — MAIN SECTION —
SECTION 4
DIAGRAMS
J901
AUX
AUX R-CH
1 ANT
SCL
SDA
SDA
A ATT
CDMON
CDON
9 AUX-LCH
ELECTRONIC VOLUME
IC401
J1
(ANTENNA)
TU1
(TUNER UNIT)
I2C BUS CONTROLLED POWER AMP/
MULTIPLE VOLTAGE REGULATOR
IC300
SYSTEM CONTROL
IC501 (1/2)
CN300
7 AUX-RCH
BATT
6 CD-LCH
5 CD-RCH
6
S-METER
7
TU MUTE
16
E2P SCL
17
E2P SDA
39 VSM
5
QUALITY
9
RDS OUT
38 QUALITY
8
MUTE CON
53 TU ATTIN
56 DAVN
BU+3.3V
26 RDS ON
92 CDMON
91 CDON
61 Z MUTE
91 CDON
61 Z MUTE
11
VDD+5V
4
L-CH
3
R-CH
BU+3.3V
10
VCC
12 TUATT
13 NSMASK
25 EEP CKO
24 EEP SIO
24 EEP SIO
CD ON
CDM ON
CD L
CD R
4 TU-LCH
3 TU-RCH
CD-RCH
R-CH(REAR)
TU-RCH
AUDIO+8.3V
AUDIO+8.3V
24
OUT-RR
R-CH(FRONT)
26
OUT-FR
5
3
3
OUT FL+
OUT FL–
9
7
7
OUT RL+
OUT RL–
29
27
27
AMP REM
R-CH
ANT REM
BATT
30
37
37
AUDIO+B
35
VP
BU+B
31
33
33
SERVO3.3V
MECHA6V
34
PANEL+B
28
MUTE
2 SDA
AUDIO+8.3V
BU+5V
SERVO+3.3V
MECHA+6V
MECHA+6V
PANEL+B
4 SCL
SDA
SCL
16 BEEP
22 STB
25 DIAG
25 DIAG
15
13
7
10
12
11
16
1
9
2
4
3
5
6
29
30
30
SCL
SDA
SCL
SDA
SCL
SDA
9
VOLATT
100
ATT
33
I2C SCK
34
I2C SIO
96
BUIN
97
TESTIN
12 IN FL
FL+
FL–
RL+
RL–
FR+
FR–
RR+
RR–
AMP-REM
ANT-REM
ACC
TEST
11 IN RL
23
OUT-RL
25
OUT-FL
MUTE
Q432
AUDIO OUT
REAR
MUTE CONTROL
SWITCH
Q491,492
60
UNISI
54
UNISO
58
UNISCK
59
BUSON
88
SYSRST
12
B/U-C
11
DATA OUT
10
DATA IN
8
CLK IN
LINKOFF
9
BUS IN
13 RST
RESET
3
5
6
6
8
4
2
3
3
1
BATT
CLK 4
DATA I/O
1
BUS ON
2
RST
SYSRST
UNISO
UNISI
B/U CHECK
UNICLK
BUSON
99
ACCIN
ACCESSORY CHECK
Q702
BATT
BATT
BATTERY
CHECK
Q605
BUS INTERFACE
IC601
MUTE
Q470
MUTE
Q440
D491
F901
R-CH
21
22
22
SUBOUT-L
SUBOUT-R
R-CH
L
R
J652 (2/2)
BUS
CONTROL IN
D353
D609
D602
DISPLAY
SECTION
A
TH400
CNJ400
7
BATT
TUNER+5V
REG
Q3
NOISE MASK
SWITCH
Q1
RDS+3.3V
SWITCH
Q50
RDS MODULATOR
IC50
15
E2PVDD
13
TU-SCL
14
TU-SDA
BU+5V
BU+3.3V
REG
IC681
TEL ATT
98
TELATT
TELEPHONE ATTENATION
CHECK
Q701
7
DIAG
8
AMPSTB
5
BEEP
D493
BUS
AUDIO
IN
BUS-RCH
L
R
J652 (1/2)
2 BUS-LCH
1 BUS-RCH
BUS-RCH
CD-RCH
AUX-RCH
TU-RCH
ZMUTE
Z MUTE
SYS RST
MECHA+6V
BU+3.3V
SERVO+3.3V
B/U CHECK
A ATT
BUS ON
UNI SI
UNI CLK
DR+6V
BU+3.3V
A+3.3V
D+3.3V
UNI SO
LINK OFF
CDON
CDMON
ZMUTE
SYSRST
B/U CHECK
A ATT
BUSON
UNISI
UNICLK
UNISO
LINKOFF
BUS ON
SWITCH
Q601
CD
MECHANISM
UNIT
(MG-101TA)
6
11
SCL
15
INTN
16 MPX
XTO
XTI
12
SDA
SCL
SDA
1
VDDA
7
VDDD
10
9
X50
8.664MHz
LINK OFF
SWITCH
Q600
• Signal Path
• R-CH is omitted due to same as L-CH.
: CD PLAY
: FM
: AUX
: MW/LW
(Page 16)
16
16
CDX-GT310
CDX-GT310
4-2. BLOCK DIAGRAM — DISPLAY SECTION —
RESET
MAIN
SECTION
A
KEY ACKNOWLEDGE
SWITCH
Q664
83
82
41
28
29
27
40
52
48
64
SYSTEM CONTROL
IC501 (2/2)
FL901
FLUORESCENT
INDICATOR TUBE
KEYIN0
CLK
CS
FL SO
FL SCK
FL CS
20
19
16
GRID1
GRID2
GRID3
41
1G
15
RESET
9
VH
F+
F–
FL VH+12V
5
VDD(+3.3V)
KEYIN1
31 RE-IN0
32 RE-IN1
KEYACK
AD ON
62 NOSESW
SIRCS
77 RESET
PANEL+B
BATT
FL VH+12V
LSW901,902
LED941–947,
950–957,
961–963
950–957,
961–963
OSCOUT
OSCIN
87
FL ON
X501
18.432MHz
12
14
10
3G
D503
17
•
18
6
•
42
1
•
2
44
•
45
2G
DIO
PANEL+B
BU+3.3V
KEY MATRIX
80
79
XOUT
XIN
X502
32.768MHz
LSW901,902
S901–904,906–915
(VOLUME)
PUSH SELECT
RE901
ROTARY
ENCODER
REMOTE CONTROL
SIGNAL RECEIVER
IC971
RESET
IC602
PANEL+B
FL VH+12V
FL DRIVE
Q883
FL DRIVE
Q882
FL DRIVE
Q881
PANEL+B
VDD+3.3V
REG
IC972
FL+3V
REG
IC202
FL+7V
REG
IC201
FL+12V
REG
IC200
FL+12V
REG
IC203
S103
RESET
D204-206
D200-203
D207
(Page 15)
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