Read Sony DAV-S300 / HCD-S300 Service Manual online
18
SECTION 5
ELECTRICAL ADJUSTMENTS
In making adjustment, refer to 5-2. Adjustment
Related Parts Arrangement.
Related Parts Arrangement.
Note: During diagnostic check, the characters and color bars can
be seen only with the NTSC monitor. Therefore, for diag-
nostic check, use the monitor that supports both NTSC and
PAL modes
nostic check, use the monitor that supports both NTSC and
PAL modes
This section describes procedures and instructions necessary for
adjusting electrical circuits in this set.
adjusting electrical circuits in this set.
Instruments required:
1) Color monitor TV
2) Oscilloscope 1 or 2 phenomena, band width over 100 MHz,
1) Color monitor TV
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
4) Digital voltmeter
5) Standard commander
* RM-SS300 (1-418-838-11)
6) DVD reference disc
HLX-501 (J-6090-071-A) (dual layer)
HLX-503 (J-6090-069-A) (single layer)
HLX-504 (J-6090-088-A) (single layer)
HLX-505 (J-6090-089-A) (dual layer)
HLX-503 (J-6090-069-A) (single layer)
HLX-504 (J-6090-088-A) (single layer)
HLX-505 (J-6090-089-A) (dual layer)
7) SACD reference disc
HLXA-509 (J-6090-090-A)
* Use only the designated remote control when adjusting this
system component.
5-1. ADJUSTMENT OF VIDEO SYSTEM
1. Video Level Adjustment (DVD BOARD)
<Purpose>
This adjustment is made to satisfy the NTSC standard, and if not
adjusted correctly, the brightness will be too large or small.
<Purpose>
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
RV401
Specification
1.0
± 0.02 Vp-p
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 RV401 to attain 1.0
± 0.02 Vp-p.
Figure 5-1
2. S-terminal Output Check (DVD BOARD)
<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.
<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.
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
± 0.1 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
± 0.1 Vp-p.
Figure 5-2
1.0 ± 0.02 Vp-p
1.0 ± 0.1 Vp-p
Ver 1.6 2003.02
RE-ADJUSTMENT OF THE SERVO CIRCUIT
The re-adjustment of the servo circuit is necessary
when the part which relates to the servo circuit is
replaced.
Referring to ”4-4. DRIVE AUTO ADJUSTMENT” (see
page 12), Choose ALL and do the re-adjustment of
each item of DVD-SL, CD and DVD-DL.
The re-adjustment of the servo circuit is necessary
when the part which relates to the servo circuit is
replaced.
Referring to ”4-4. DRIVE AUTO ADJUSTMENT” (see
page 12), Choose ALL and do the re-adjustment of
each item of DVD-SL, CD and DVD-DL.
THE PART THAT THE RE-ADJUSTMENT OF THE
SERVO CIRCUIT IS NECESSARY
1. Optical pick-up
2. RF AMP (IC001)
3. DSP IC (IC701)
4. Motor driver IC (IC801,802)
5. EEPROM (IC201)
SERVO CIRCUIT IS NECESSARY
1. Optical pick-up
2. RF AMP (IC001)
3. DSP IC (IC701)
4. Motor driver IC (IC801,802)
5. EEPROM (IC201)
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