Sony XAV-A1 Service Manual ▷ View online
XAV-A1
21
3-15. SERVO BOARD
3-16. CLAMP CHASSIS ASSY, DISC ASSY PLATE
1
four screws
(PCS2
(PCS2
×
3.5)
6
flexible cable
(CS1102)
(CS1102)
8
SERVO board
5
flexible cable
(CS1103)
(CS1103)
4
flexible cable
(CS1301)
(CS1301)
3
Remove two solders
of the loading motor
lead wires (M1100).
of the loading motor
lead wires (M1100).
7
four screws
(SW2
(SW2
×
4)
2
bottom cover assy
5
Remove the clamp torsion spring
6
clamp chassis assy
8
gear shaft assy
7
shaft gear bracket
9
disc assy plate
clamp torsion spring
1
two claws
2
two claws
4
cover assy
3
two claws
XAV-A1
22
3-17. DVD CHASSIS ASSY
0
DVD chassis assy
1
chassis DVD coil spring
2
chassis DVD coil spring
9
Slide the slide rack.
4
F damper coil spring
(silver)
(silver)
3
damper
(green)
(green)
5
damper
(green)
(green)
7
R damper
(gray)
(gray)
6
F damper coil spring
(silver)
(silver)
8
R damper coil spring
(gold)
(gold)
XAV-A1
23
23
XAV-A1
SECTION 4
ELECTRICAL ADJUSTMENTS
VOLTAGE ADJUSTMENT
Setting:
Procedure:
1. Connect a digital voltmeter to the U6 and U7 on the LCD
board.
2. Adjust the SVR1001 on the LCD board so that the value of
digital voltmeter becomes +5.4 V
± 0.05 V.
3. Connect a digital voltmeter to the R1115 and U7 on the LCD
board.
4. Confirm that the value of digital voltmeter is +5.0 V
± 0.1 V.
5. Connect a digital voltmeter to the U1 and U7 on the LCD
board.
6. Adjust the SVR1002 on the LCD board so that the value of
digital voltmeter becomes –14.0 V
± 0.1 V.
7. Connect a digital voltmeter to the R1054 and U7 on the LCD
board.
8. Confirm that the value of digital voltmeter is +14.5 V
± 0.5 V.
Adjustment and Connection Location: LCD board
TOUCH PANEL ADJUSTMENT
Note:
After the end of voltage adjustment, this adjustment is performed.
Procedure:
1. Turn the power on and set th FM mode.
2. Press the [OPEN/CLOSE] button to open the monitor.
3. Touch in order of [SOURCE], [MENU], [OTHER] and [Touch
2. Press the [OPEN/CLOSE] button to open the monitor.
3. Touch in order of [SOURCE], [MENU], [OTHER] and [Touch
Panel Adjust] on the monitor to display three points on the
monitor.
monitor.
4. Touch in order of point [1], [2] and [3] on the monitor.
SETTING THE TEST MODE
Procedure:
1. Turn the power on and press the [OPEN/CLOSE] button to open
the monitor.
2. Press the [OFF] button to set the OFF state.
3. Press the [SOURCE] and [SEEK +] buttons simultaneously for
3. Press the [SOURCE] and [SEEK +] buttons simultaneously for
several seconds.
4. When test mode is activated, “Picture” is displayed on the
monitor and segments of sub display all lit.
BASIC OPERATIONS OF THE TEST MODE
The functions of these buttons are as follows.
Button
Function
[SEEK +]/[SEEK ---] button
Proceeding and return of adjustment item*
[VOL +]/[VOL ---] button
Increase and decrease of adjustment value
[OFF] button
Writing of adjustment value and releasing
of test mode
* The adjustment item switches as follows whenever the
[SEEK +]/[SEEK ---]
button is pressed; ···
↔ Picture ↔ Color ↔ Tint(HUE) ↔ Phase ↔ Cont-
Video
↔ Cont-RGB1 ↔ Cont-RGB2 ↔ GAMMA 1 ↔ GAMMA 2↔
RGB AMP.
↔ Bright ↔ SUB-Bright-R ↔ SUB-Bright-B ↔ COM-Amp.
↔ Flicker-NTSC ↔ Flicker-PAL ↔ ···.
digital voltmeter
U1/U6/R1054/R1115
U7
LCD board
MONITOR ADJUSTMENT
Setting:
Procedure:
1. Connect a TV SSG to the AUX3 jack on the MAIN board.
2. Input 10 steps signal (chroma off, NTSC composite video)
2. Input 10 steps signal (chroma off, NTSC composite video)
from AUX3 jack on the MAIN board.
3. Connect an oscilloscope to the IC1033 pin qs and U7 on the
LCD board.
4. Set the test mode and press the [SEEK +]/[SEEK ---] button to
select the “RGB AMP.”.
5. Adjust the [VOL +]/[VOL ---] button so that the A level of the
waveform on the oscilloscope becomes 5.0 V
± 0.05 V. (Vb-b
adjustment)
6. Press the [SEEK +]/[SEEK ---] button to select the “Cont-Video”.
7. Adjust the [VOL +]/[VOL ---] button so that the B level of the
7. Adjust the [VOL +]/[VOL ---] button so that the B level of the
waveform on the oscilloscope becomes 4.8 V to 4.9 V. (Vb-w
adjustment)
adjustment)
8. Press the [SEEK +]/[SEEK ---] button to select the “Bright ”.
9. Adjust the [VOL +]/[VOL ---] button so that the C level of the
9. Adjust the [VOL +]/[VOL ---] button so that the C level of the
waveform on the oscilloscope becomes 2.1 V
± 0.05 V.
(Gamma adjustment)
10. Repeat the step 6 to 9 several times to become specified voltage.
11. Connect an oscilloscope to the CN1010 1 pin and U7 on the
LCD board.
12. Press the [SEEK +]/[SEEK ---] button to select the “COM-Amp.”.
13. Adjust the [VOL +]/[VOL ---] button so that the D level of the
13. Adjust the [VOL +]/[VOL ---] button so that the D level of the
waveform on the oscilloscope becomes 5.6 V
± 0.1 V. (VCOM
adjustment)
14. Insert the DVD test disc and play the track No. 5.
DVD test disc:
HLX-504 (Part No.: J-6090-088-A) (single layer) (NTSC)
HLX-505 (Part No.: J-6090-089-A) (dual layer) (NTSC)
HLX-506 (Part No.: J-6090-077-A) (single layer) (PAL)
HLX-507 (Part No.: J-6090-078-A) (dual layer) (PAL)
HLX-504 (Part No.: J-6090-088-A) (single layer) (NTSC)
HLX-505 (Part No.: J-6090-089-A) (dual layer) (NTSC)
HLX-506 (Part No.: J-6090-077-A) (single layer) (PAL)
HLX-507 (Part No.: J-6090-078-A) (dual layer) (PAL)
15. Connect an oscilloscope to the IC1033 pin qs and U7 on the
LCD board.
16. Press the [SEEK +]/[SEEK ---] button to select the “Cont-RGB1”.
LCD board
IC1033 pin
qs
/CN1010 pin
1
U7
+
–
–
oscilloscope
(DC range)
GND
A
B
C
D
17. Adjust the [VOL +]/[VOL ---] button so that the E level of the
waveform on the oscilloscope becomes 4.8 V
± 0.05 V. (DVD
adjustment)
18. Press the [OFF] button to write the adjustment value and release
the test mode.
Connection Location: LCD board
FLICKER ADJUSTMENT
GND
E
Procedure:
1. Connect a TV SSG to the AUX3 jack on the MAIN board.
2. Input 10 steps signal (chroma off, NTSC composite video)
2. Input 10 steps signal (chroma off, NTSC composite video)
from AUX3 jack on the MAIN board.
3. Set the test mode and press the [SEEK +]/[SEEK ---] button to
select the “Flicker-NTSC”. (Afterwards, hold the state for 30
minutes or more)
minutes or more)
4. Give a shock to the set, adjust the [VOL +]/[VOL ---] button so
that the flicker becomes minimum in the sight.
5. Input 10 steps signal (chroma off, PAL composite video) from
AUX3 jack on the MAIN board.
6. Set the test mode and press the [SEEK +]/[SEEK ---] button to
select the “Flicker-PAL”.
7. Give a shock to the set, adjust the [VOL +]/[VOL ---] button so
that the flicker becomes minimum in the sight.
8. Press the [OFF] button to write the adjustment value and release
the test mode.
Adjustment and Connection Location:
– LCD Board (Side B) –
IC1033
U6
1
14
7
8
U7
U1
CN1010
1
5
SVR1002
R1054
SVR1001
R1115
XAV-A1
24
24
XAV-A1
SECTION 5
DIAGRAMS
5-1. BLOCK DIAGRAM – SERVO Section –
1
DOUT
EEPROM
IC1104
60 XCDRF
49 XCD_A
48 XCD_B
47 XCD_C
48 XCD_B
47 XCD_C
46 XCD_D
54 XDVD_A
54 XDVD_A
53 XDVD_B
XDVD_C
XDVD_D
XDPD_A
XDPD_A
XDPD_B
XDPD_C
XDPD_D
52
51
58
51
58
57
56
55
56
55
45 XCD_E
44 XCD_F
34 XVREF21
36 XDVDPD
38 XCDPD
40 XCDLD
39 XDVDLD
17 CD_DVDCT
DVD/CD
SWITCH
(CD)
Q1104
Q1106
DVD/CD
SWITCH
(DVD)
Q1105
144 GAINSW
RF
A/a
B/b
C/c
D/d
E1
E2
E2
F1
F2
204
3
XLRCLK
XIECDATA
7
6
7
1
10
5
3
8
2
ZEROL
D1203
D1203
ZEROR
205
2
XASDA3
203
1
XBCLK
201
16
XDASCLK
196
13
XIIC-DA/DAC MD/DVDTXD
XIIC-SCL/DAC MC
DAC CS
LRCLK
SER3
BCLK
DASCLK
XSDA/MD/TXD
SCL/MC
DAC_CS
DAC_CS
195
14
198
15
5
6
199
DMUTE
180
20
181
21
183
18
184
17
186
15
39
39
185
16
187
19
143
38
12
105
11
103
28
3
TVDAC2
X1101
27MHz
11 V02+
10 V02-
VREF
LD-CD
LD-DVD
PD
CD-VR
DVD-VR
SW1
SW2
SW2
F+
F-
T+
T-
LD DRIVER (CD)
Q1110
LD DRIVER (DVD)
Q1111
17 V03+
13 V01+
SL1+
SL1-
SL1-
SL2+
SL2-
16 V03-
5 A1
3 A2
2 A3
23 VM
22 VCC
12 V01-
14 V04+
15 V04-
M
M
7 H1+
8 H1-
9 H2+
10 H2-
11 H3+
12 H3-
13 VH
HU+
HU-
HV+
HV-
HW+
HW-
VM
VM
INSIDE
15 INSIDE SW
85
21
FG
18
ECR
5VCC
22 DRVSB
79
80 XSLEGP
XSLEGN
XSFGN
20
PS
8
STBY
U
V
W
COM
FG
25
VIN4
3
VIN1
77 XTRACKING
23
IN3
76 XFOCUS
5
IN2
22
OPOUT
82 SPINDL
21
OP-
LOW-PASS FILTER
Q1205
8
TVDAC0
LOW-PASS FILTER
Q1207
2
TVDAC3
LOW-PASS FILTER
Q1203
7
TVDAV1
LOW-PASS FILTER
Q1206
211
140
SWITCH-C
136
XOUT
135
XIN-XCLK
LOW-PASS FILTER
Q1208
MUTING
BUFFER
IC631
190
XTDO
134
TXD
194
XTDI
193
XTMS
192
XTCK
93,95,
97-102
97-102
29,31,33,35,
38,40,42,44
131,129-127,125,
123-116,114-108
45,25-18,
8-1,48,17-16
177-174,152-148,
146,178,182
23-26,29-34,
22,35
163,164,166-169,171,173,
154-157,159-162
2,4,5,7,8,10,11,13,
42,44,45,47,48,50,51,53
12
11
MUTE CONTROL
Q1211,1212
DVD_L
R-CH
R-CH
R-CH
DVD_R
DVD_G
DVD_B
DVD_CV
S-Y
ZEROL
MPEG_DI
CPURST
MUTING
Q1202
LOW-PASS
FILTER
IC1206
IC1206
D/A
CONVERTER
IC1207
MD0-15
MA0-17
XBA0
XBA1
XRASJ
XCASJ
XDQM
XWEJ
RESET
XCSJ
XDMCLK
BA0
BA1
RAS
CAS
LDQM
LDQM
UDQM
WE
WE
CS
CLK
CLK
ROMDATA0-7
ROMAD0-19
WE
OE
XROMWEJ
XCRESETJ
XROMOEJ
CVBS2
CVBS
S1101
(CHUCKING)
SD-RAM
IC1105
FLASH MEMORY
IC1106
FOCUS
COIL
TRACKING
COIL
(SLED)
(SPINDLE)
SPINDLE
MOTOR DRIVE
IC1301
FOCUS/TRACKING COIL DRIVE,
SLED MOTOR DRIVE
IC1101
CD/DVD DSP,
MPEG DECODER
IC1102
DVD CHASSIS
ASSY
B
A
C
D
• SIGNAL PATH
: DVD (VIDEO)
: DVD/CD (AUDIO)
20
11
4
12
5
6
141
LM+
VD33A
Q1107
Q1108
DISC IN
DETECT
DETECT
Q1102
DISC SIZE
DETECT
Q1101
DZ1101
VOLTAGE
CONTROL
Q1103
SENS-A
SENS-B
LOAD+
LOAD-
LOAD-
LOADUP
LM–
1
7
M
M
18
EJECT 13
SYS CPU TXD 197
132
XTOCK 138
DVD STB 200
SENSOR LED
BLOCK
LOADING
MOTOR DRIVER
IC1103
M1100
(LOADING)
LD+
LD-
VR
DVDEJECT
MPEG_REQ
MPEG_CLK
MPEG_DO
MPEG_DO
CS581
NC
P
MUTING
(Page 25)
(Page 27)
(Page 25)
(Page 27)
(Page 27)
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