Sony CDX-GT680UI / CDX-GT686UI Service Manual ▷ View online
CDX-GT680UI/GT686UI
13
3-10. OPTICAL PICK-UP SECTION
3-11. OPTICAL PICK-UP
optical pick-up section
Note: Be careful not to touch the lens and hologram
terminal when removing the optical pick-up section.
There is space at the end of the
leaf spring (sub guide) to avoid
contact with the slide.
leaf spring (sub guide) to avoid
contact with the slide.
tapping screw
(P
1.4)
leaf spring (sub guide)
leaf spring (OP)
optical pick-up
lead screw assy
Notes for Assembly
Prevent the end of the
leaf spring (sub guide) from being
in contact with the OP slide base.
leaf spring (sub guide) from being
in contact with the OP slide base.
Prevent the end of the
leaf spring (sub guide) from being
in contact with the OP slide base.
leaf spring (sub guide) from being
in contact with the OP slide base.
CDX-GT680UI/GT686UI
14
•
A : B+ Line.
•
B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• no mark : FM
( ) : AM
< > : CD PLAY
• Voltages are taken with VOM (Input impedance 10 M
( ) : AM
< > : CD PLAY
• Voltages are taken with VOM (Input impedance 10 M
Ω).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J :
CD
F :
FM
f :
AM
L :
AUX
c :
USB
g : BUS AUDIO
• Abbreviation
EA
EA
: Saudi Arabia model
• ( ) : Page of Service Manual.
(( )) : Page of Supplement-1.
(( )) : Page of Supplement-1.
For schematic diagrams:
Note:
Note:
• All capacitors are in μF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω and
1
/
4
W or less unless otherwise
specifi ed.
• f : internal component.
•
C : panel designation.
For Printed Wiring Boards:
Note:
•
•
X : Parts extracted from the component side.
•
Y : parts extracted from the conductor side.
• a :
Through
hole.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen from
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in
each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in
each block.)
• Abbreviation
EA
EA
: Saudi Arabia model
• ( ) : Page of Service Manual.
(( )) : Page of Supplement-1.
(( )) : Page of Supplement-1.
• Waveforms
– MAIN Board –
Note: The components identifi ed by mark
0 or dotted
line with mark
0 are critical for safety.
Replace only with part number specifi ed.
0.04 Vp-p
4 MHz
1.2 Vp-p
32.768 kHz
0.05 V/DIV, 50 nsec/DIV
0.5 V/DIV, 20 μsec/DIV
IC001 RI (XTAL1)
IC501 RE (X_OUT)
1.5 Vp-p
7.92 MHz
0.5 V/DIV, 50 nsec/DIV
IC501 PE (OSC_OUT)
SECTION 4
DIAGRAMS
Ver. 1.1
CDX-GT680UI/GT686UI
CDX-GT680UI/GT686UI
15
15
20
22
22
11
12
28
12
28
8
17
18
18
3
25
7
19
27
13
24
27
13
24
4
AU_LCH
AU_RCH
AU_RCH
TXD(MC-BUS)
RXD(MC-BUS)
WAKE UP
Z_MUTE
CD_ON
CDM_ON
RXD(MC-BUS)
WAKE UP
Z_MUTE
CD_ON
CDM_ON
SYS_RST
EJECT_OK
VBUS ON
EJECT_OK
VBUS ON
AU ATT
BU CHECK
MECHA 8.5V
A+3.3V
BU_+3.3V
DR_+6V
BU CHECK
MECHA 8.5V
A+3.3V
BU_+3.3V
DR_+6V
R-CH
R-CH
R-CH
R-CH
R-CH
R-CH
AUDIO +8.5V
BU_+3.3V
SERVO+3.3V
R-CH
R-CH
7 AUX-L
9 AUX-R
9 AUX-R
MC RX
59
MC TX
60
WAKE UP
58
Z-MUTE
62
CD_ON
30
CDM_ON
31
EJECT OK
70
RESET
54
SYSRST
29
V-BUS ON
BU +3.3V
88
CLK
61
MD2
51
MD0
53
FLASH EN1
78
VOUT
1
VIN 2
15
D201
4 FMIN1
3 FMIN2
3 FMIN2
3 TU-L
8 AUX GND
ELECTRONIC VOLUME
IC401
J1
(ANTENNA)
PHASE LOCKED LOOP
(PLL)
IC001
L6
FM MIX
L2
CN201
CD
MECHANISM
UNIT
(MG-101Z)
(1/2)
I2C BUS CONTROLLED
POWER AMP/MULTIPLE
VOLTAGE REGULATOR
IC301
SYSTEM CONTROL
IC501 (1/2)
RESET
IC303
CN701
4 TU-R
5 CD-L
6 CD-R
6 CD-R
R-CH (FRONT)
R-CH (REAR)
R-CH (REAR)
BATT
R-CH
8
9
9
18
SCL
19
SDA
14
RSSI
37 VSM
16 XTAL1
15 XTAL2
LOUT
ROUT
J901
L
R
-1
-2
AUX
J901 (1/2)
X1
4MHz
BUS
AUDIO IN
S503
RESET
5
3
3
OUT-FL+
OUT-FL–
OUT-FL–
9
7
7
OUT-RL+
OUT-RL–
OUT-RL–
27
R-CH
ANT-REM
35
VP
BATT
20
VP1
6
VP2
30
AUDIO+B
31
33
33
SERVO+3.3V
MECHA+6V
34
PANEL+B
34
32
32
OUT-FR
27
SACLK
28
SADA
29
SAOUT
OUT-RR
R-CH
31
OUT-SL
13
ZAP BEEP
16
ZAP BEEP
4 I2C SCK
AUDIO +8.5V
SERVO+3.3V
MECHA+6V
PANEL+B
SERVO+3.3V
MECHA+6V
PANEL+B
2 I2C SIO
16 BEEP
22 STB
25 DIAG
22 STB
25 DIAG
7
10
12
11
16
1
9
9
2
4
3
6
37
38
38
I2C SCL
I2C SDA
I2C-SCL
I2C-SDA
I2C-SDA
I2C-SCL
I2C-SDA
I2C-SDA
I2C-SCL
I2C-SDA
I2C-SDA
I2C-SCL
I2C-SDA
I2C-SDA
23
I2C_SCK
72
SACLK
71
SAOUT
38
SAIN
22
I2C_SIO
27
ATT
75
CD MUTE
98
ZAPPING BEEP
97
BEEP
68
AMPSTB
69
DIAG
83
BU CHECK
12 IN-FL
FL+
FL–
FL–
L
R
RL+
RL–
RL–
FR+
FR–
RR+
RR–
FR–
RR+
RR–
ANT-REM
BATT
ACC
35
OUT-FL
11 IN-RL
33
OUT-RL
MUTE
Q905
MUTE DRIVE
Q906,907
13 RST
12 BUS IN
11 CLK IN
10 BU CHECK
12 BUS IN
11 CLK IN
10 BU CHECK
9 DATA IN
8 DATA OUT
8 DATA OUT
25
ACC IN
ACC DETECT
Q703
+3.3V REG
IC302
MUTE
Q903
29
AMP-REM
5
AMP-REM
14
ILL
63
ILL IN
ILL DETECT
Q702
13
TEL-ATT
26
TEL ATT
TEL-ATT DETECT
Q701
1 AMRFIN
REAR
BUS INTERFACE
IC601
D901
D202
D502
FU601
28
BUS ON
37
BU+B
B.U+5V
FRONT
R-CH
L
J901 (2/2)
R
-3
-4
-5
-6
AUDIO
OUT
MUTE
Q901
BU+3.3V
BATT
2 BUS-R
1 BUS-L
3
BATT
CLK
RST
DATA I/O
BUS ON
5
6
6
8
4
2
3
3
1
4
1
2
2
3
BATT
J601
(BUS CONTROL IN)
TH601
7
6
BATTERY CHECK
Q601,D606,607
MECHA +6V
3.3V
6
NCO
3
F WRITE
7
CLK
2
RESET
RX
4
1
5
TX
CN501
FLASH
PROGRAMMING
BU +3.3V
B.U +5V
20
UNI SCK
19
UNISO
18
UNISI
CD MUTE
Q201
DISPLAY
SECTION
A
ATT
SUB OUT
(MONO)
FLASH
PROGRAMMING
BUFFER
Q501-503
• Signal Path
• R-CH is omitted due to same as L-CH.
: AM
: CD
: FM
: BUS AUDIO
: AUX
4-1. BLOCK DIAGRAM – MAIN Section –
(Page 16)
CDX-GT680UI/GT686UI
CDX-GT680UI/GT686UI
16
16
X502
32.768kHz
14
13
39
49
50
48
50
48
40
SYSTEM CONTROL
IC501 (2/2)
LCD DRIVER,LED CONTROL
IC981
KEYIN1
CL
CE
CE
LCD_SO
LCD_SCK
LCD_CE
KEYIN0
46 KEYACK1
11 RE-IN0
RE0
RE1
RE1
12 RE-IN1
XOUT
XIN
X501
7.92MHz
92
93 OSCOUT
7 NOSE_SW
OSCIN
77
78
76
DIMMER 79
BLUE 2
RING 80
GREEN 1
COM1
I
COM4
LCD901
LIQUID
CRYSTAL
DISPLAY
PANEL
3
|
64
•
69
65
|
68
S1
I
S64
DI
PANEL+B
KEY MATRIX
S201,951–966
(VOLUME)
PUSH ENTER/SELECT
RE901
ROTARY
ENCODER
95 SIRCS
REMOTE
CONTROL
SIGNAL
RECEIVER
IC982
Q921
GREEN
LED
CONTROL
Q901
BLUE
LED
CONTROL
Q991
DIMMER
CONTROL
LED921-936,
940
LED917-920
LED937-939,
941
LED901-916
LED991,992
3
S501
FRONT PANEL
DETACH DETECT
LED201,202
6 DOORIND
BATT
DOOR IND
LED DRIVER
Q908
MAIN
SECTION
A
USB POWER
CONTROL SWITCH
IC802
ATT
99
SYNC OUT
89
USB OVER
5
DOOR SW
3 2E
79
USB ON
BATT
80
DD ON
IN
VBUS
4 EN
5 OC
2
3 IN
6
OUT
D803
L802
DC/DC CONVERTER
CONTROL
IC803
D978
USB SELECT SWITCH
IC971
Q971
USB ON/OFF
CONTROL
S971
FRONT PANEL
OPEN DETECT
CD
MECHANISM
UNIT
(MG-101Z)
(2/2)
D977
7 1E
2 1Z
5 2Y
5 2Y
1
1Y
USB D+
USB D–
USB D–
6
2Z
73
F AUX
D504
3 CLR
55
AREA SEL2
2 B
5
Q
DC/DC CONVERTER
IC801
6
DRV
1 RC
7
OUT
8
OUT
USB POWER
SWITCH
Q801
USB POWER
CONTROL
Q802
SWITCHING
REGULATOR
Q803
LED
DRIVER
Q992
RING ILLUMI
LED CONTROL
Q993
+5V REG
Q806
VOLTAGE
DETECT
Q804,805
1
3
2
3
2
VBUS
D+
D–
D–
4
CN971
(USB)
D804
34 RC IN1
45 KEYACK0
41 RC IN0
J701
(REMOTE IN)
• Signal Path
: USB
BU+3.3V
EXCEPT EA MODEL
S502
FREQUENCY
SELECT
FM(200K)
AM(10K)
AM(10K)
FM(50K)
AM(9K)
AM(9K)
• Abbreviation
EA: Saudi Arabia model
4-2. BLOCK DIAGRAM – DISPLAY Section –
(Page 15)
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