Sony DVP-CX777ES Service Manual ▷ View online
45
DVP-CX777ES
SECTION 5
MECHANICAL ADJUSTMENTS
POP UP MECHANISM ADJUSTMENT
1. Connect the AC plug of the set to AC consent, then the set
enters standby mode.
2. Press the
[TOP MENU]
,
[CLEAR]
and
I/1
key in turn, then
the set enters the diag mode.
3. Select 2. Drive Manual Operation by pressing the
[2]
key.
4. Select 8. Changer Mecha check by pressing the
[8]
key.
5. Press the
[ENTER]
key, then the CDM initializies.
6. Press the
[PAUSE]
key, then the T.table rotates to the mecha
adjustment position, the door opens and the T. table locks. (Fig.
1)
1)
7. Keep pressing the
[RIGHT]
key to raise the pop up part.
8. Loosen the adjusting screw, move the screwdriver left and right
until the lever (POP UP) does not touch the slit wall, and se-
cure the screw. (Fig. 2)
cure the screw. (Fig. 2)
The following keys have special functions in this mode.
[UP]
key
: Loading mechanism IN operation
[DOWN]
key : Loading mechanism OUT operation
[RIGHT]
key : Pop up part UP operation
[LEFT]
key
: Pop up part DOWN operation
TABLE SENSOR ADJUSTMENT
After the Pop Up Mechanism Adjustment, perform this adjust-
ment continuously.
ment continuously.
1. Loosen the fixing screw. Moving the holder little by little, stop
it at a boundary point where the PROGRESSIVE LED (blue)
goes off and the SACD LED (white) lights up. If the holder is
moved in reverse direction, stop the holder at a point where
the SACD LED goes off and the PROGRESSIVE LED lights
up.
goes off and the SACD LED (white) lights up. If the holder is
moved in reverse direction, stop the holder at a point where
the SACD LED goes off and the PROGRESSIVE LED lights
up.
2. Moving the T. table right and left with a hand after the screw
is fixed, the table will move by the play of the T. table. If the
LEDs light up alternately, the adjustment will be performed
correctly. (Fig. 3)
LEDs light up alternately, the adjustment will be performed
correctly. (Fig. 3)
Fig. 1
Fig. 2
Fig. 3
Holder (table sensor 400)
S tight, screw
(PTTWH 3
(PTTWH 3
×
6)
Swing
Table (400) assembly
At this position,this
part will be locked.
part will be locked.
Lever (POP-UP 400)
Fix to the center so that the
lever (POP-UP 400) does
not touch the slit.
lever (POP-UP 400) does
not touch the slit.
Cover (chassis 400)
46
DVP-CX777ES
SECTION 6
ELECTRICAL ADJUSTMENTS
This section describes procedures and instructions necessary for
adjusting electrical circuits in this unit.
adjusting electrical circuits in this unit.
Instruments required:
1) Color monitor TV
2) Oscilloscope 1 or 2 phenomena, band width over 100 MHz,
2) Oscilloscope 1 or 2 phenomena, band width over 100 MHz,
with delay mode
3) Frequency counter (over 8 digits)
4) Digital voltmeter
5) Standard commander (RM-DX700)
6) CD reference disc
4) Digital voltmeter
5) Standard commander (RM-DX700)
6) CD reference disc
YEDS-18 (3-702-101-01)
PATD-012 (4-225-203-01)
PATD-012 (4-225-203-01)
7) DVD reference disc
HLX-501 (J-6090-071-A) (dual layer) (NTSC)
HLX-503 (J-6090-069-A) (single layer) (NTSC)
HLX-504 (J-6090-088-A) (single layer) (NTSC)
HLX-505 (J-6090-089-A) (dual layer) (NTSC)
HLX-503 (J-6090-069-A) (single layer) (NTSC)
HLX-504 (J-6090-088-A) (single layer) (NTSC)
HLX-505 (J-6090-089-A) (dual layer) (NTSC)
8) SACD reference disc
HLXA-509 (J-6090-090-A)
9) Extension Cable (J-6090-107-A)
6-1.
AUTO SERVO ADJUSTMENT
After parts related to the servo circuit (RF amplifier (IC201), DSP
(IC301), motor driver (IC202), EEPROM (IC101) so on) are re-
placed, re-adjusting the servo circuit is necessary. Select “ALL” at
“DRIVE AUTO ADJUSTMENT” (Refer to page 27 in TEST
MODE) and adjust DVD-SL (single layer), CD and DVD-DL (dual
layer).
(IC301), motor driver (IC202), EEPROM (IC101) so on) are re-
placed, re-adjusting the servo circuit is necessary. Select “ALL” at
“DRIVE AUTO ADJUSTMENT” (Refer to page 27 in TEST
MODE) and adjust DVD-SL (single layer), CD and DVD-DL (dual
layer).
In making adjustment, refer to 5-5. Adjustment
Related Parts Arrangement.
Related Parts Arrangement.
6-2.
POWER SUPPLY CHECK
1. POWER Board
Checking method:
1) Confirm that each voltage satisfies the specification.
1) Confirm that each voltage satisfies the specification.
Note
Because the heatsink installed on the power supply board is a part of
the primary side, never touch it to avoid electrical shock.
the primary side, never touch it to avoid electrical shock.
Mode
E-E
Instrument
Digital voltmeter
EVER +3.3 V Check
Test point
CN201 pin qa
Specification
3.5
± 0.2 Vdc
SW +3.3 V Check
Test point
CN201 pin 8
Specification
3.5
± 0.2 Vdc
SW +5 V Check
Test point
CN201 pin qs
Specification
5.0
± 0.3 Vdc
SW +11 V Check
Test point
CN201 pin 6, 7
Specification
11.0
± 1.0 Vdc
EVER +5 V Check
Test point
CN201 pin qd
Specification
5.0
± 0.3 Vdc
EVER –11 V Check
Test point
CN201 pin 2
Specification
–11.0
± 1.0 Vdc
47
DVP-CX777ES
6-3.
ADJUSTMENT OF VIDEO SYSTEM
1. Video Level Adjustment (MB Board)
<Purpose>
This adjustment is made to satisfy the NTSC standard, and if not
adjusted correctly, the brightness will be too large or small.
This adjustment is made to satisfy the NTSC standard, and if not
adjusted correctly, the brightness will be too large or small.
Mode
Video level adjustment in test mode
Signal
Color bars
Test point
LINE OUT (VIDEO) connector
(75
(75
Ω terminated)
Instrument
Oscilloscope
Adjusting element
RV601
Specification
1.0
+0.04
Vp-p
–0.02
Adjusting method:
1) In the test mode initial menu “6” Video Level Adjustment, set
1) In the test mode initial menu “6” Video Level Adjustment, set
so that color bars are generated.
2) Adjust the RV601 to attain 1.0
+0.04
Vp-p.
–0.02
Fig. 6-1
2. Progressive Video Output Level Adjustment
(MB Board)
<Purpose>
This adjusts progressive video output level. If it is incorrect, cor-
rect brightness will not be attained when connected to, for instance,
projector.
This adjusts progressive video output level. If it is incorrect, cor-
rect brightness will not be attained when connected to, for instance,
projector.
Mode
Video level adjustment in test mode
Signal
Color bars
Test point
COMPONENT VIDEO OUT (Y)
connector (75
connector (75
Ω terminated)
Instrument
Oscilloscope
Adjusting element
RV602
Specification
1.0
+0.04
Vp-p
–0.02
Adjusting method:
1) In the test mode initial menu “6” Video Level Adjustment, set
1) In the test mode initial menu “6” Video Level Adjustment, set
so that color bars are generated.
2) Adjust the RV602 to attain 1.0
+0.04
Vp-p.
–0.02
Fig. 6-2
3. Checking S Video Output S-Y
<Purpose>
Check S-terminal video output. If it is incorrect, pictures will not
be displayed correctly in spite of connection to the TV with a S-
terminal cable.
Check S-terminal video output. If it is incorrect, pictures will not
be displayed correctly in spite of connection to the TV with a S-
terminal cable.
Mode
Video level adjustment in test mode
Signal
Color bars
Test point
S VIDEO OUT (S-Y) connector
(75
(75
Ω terminated)
Instrument
Oscilloscope
Specification
1.0
± 0.05 Vp-p
Checking method:
1) In the test mode initial menu “6” Video Level Adjustment, set
1) In the test mode initial menu “6” Video Level Adjustment, set
so that color bars are generated.
2) Confirm that the S-Y level is 1.0
± 0.05 Vp-p.
Fig. 6-3
4. Checking S Video Output S-C
<Purpose>
This checks whether the S-C satisfies the NTSC standard. If it is
not correct, the colors will be to dark or light.
This checks whether the S-C satisfies the NTSC standard. If it is
not correct, the colors will be to dark or light.
Mode
Video level adjustment in test mode
Signal
Color bars
Test point
S VIDEO OUT (S-C) connector
(75
(75
Ω terminated)
Instrument
Oscilloscope
Specification
A = 286
± 30 mVp-p (NTSC)
Checking method:
1) In the test mode initial menu “6” Video Level Adjustment, set
1) In the test mode initial menu “6” Video Level Adjustment, set
so that color bars are generated.
2) Confirm that the S-C burst is “A”.
Fig. 6-4
1.0
+0.04
Vp-p
–0.02
1.0
+0.04
Vp-p
–0.02
1.0
±
0.05 Vp-p
A
48
DVP-CX777ES
5. Checking Component Video Output Y
<Purpose>
This checks component video output Y. If it is incorrect, correct
brightness will not be attained when connected to, for instance,
projector.
This checks component video output Y. If it is incorrect, correct
brightness will not be attained when connected to, for instance,
projector.
Mode
Video level adjustment in test mode
Signal
Color bars
Test point
COMPONENT VIDEO OUT (Y)
connector (75
connector (75
Ω terminated)
Instrument
Oscilloscope
Specification
1.0
± 0.05 Vp-p
Checking method:
1) In the test mode initial menu “6” Video Level Adjustment, set
1) In the test mode initial menu “6” Video Level Adjustment, set
so that color bars are generated.
2) Confirm that the Y level is 1.0
± 0.05 Vp-p.
Fig. 6-5
6. Checking Component Video Output B-Y
<Purpose>
This checks component video output B-Y. If it is incorrect, correct
colors will not be displayed when connected to, for instance, pro-
jector.
This checks component video output B-Y. If it is incorrect, correct
colors will not be displayed when connected to, for instance, pro-
jector.
Mode
Video level adjustment in test mode
Signal
Color bars
Test point
COMPONENT VIDEO OUT (P
B
/C
B
)
connector (75
Ω terminated)
Instrument
Oscilloscope
Specification
A = 646
± 50 mVp-p
Checking method:
1) In the test mode initial menu “6” Video Level Adjustment, set
1) In the test mode initial menu “6” Video Level Adjustment, set
so that color bars are generated.
2) Confirm that the B-Y level is A.
Fig. 6-6
7. Checking Component Video Output R-Y
<Purpose>
This checks component video output R-Y. If it is incorrect, correct
colors will not be displayed when connected to, for instance, pro-
jector.
This checks component video output R-Y. If it is incorrect, correct
colors will not be displayed when connected to, for instance, pro-
jector.
Mode
Video level adjustment in test mode
Signal
Color bars
Test point
COMPONENT VIDEO OUT (P
R
/C
R
)
connector (75
Ω terminated)
Instrument
Oscilloscope
Specification
B = 646
± 50 mVp-p
Checking method:
1) In the test mode initial menu “6” Video Level Adjustment, set
1) In the test mode initial menu “6” Video Level Adjustment, set
so that color bars are generated.
2) Confirm that the R-Y level is B.
Fig. 6-7
1.0
±
0.05 Vp-p
A
B
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