Sony DPP-SV88 Service Manual ▷ View online
3-8
DPP-SV88 V1
Fig.3-11
Procedure
1.
Enter the service mode, move the
\ mark to “YC out level” using Direction keys, and press the
Enter key. (Fig. 3-11)
2.
A color-bar signal is displayed on the monitor.
3.
Adjust using Direction keys (
↑
,
↓
,
←
, and
→
) so that the video output level (SYNC to 100%
white) and burst level satisfy the specifications.
Video output level (Use
↑
and
↓
keys.)
Specifications: 1
±
0.02 V p-p
n
↑
key: Increases the level.
↓
key: Decreases the level.
Burst level (Use
←
and
→
keys.)
Specifications: 225
±
15 mV p-p (J and UC)
235
±
15 mV p-p (CED and CEK)
n
→
key: Increases the level.
←
key: Decreases the level.
4.
Confirm that the video output level and burst level satisfy the specifications and press the Enter key.
5.
When the monitor screen returns to the screen shown in Fig. 3-11, turn off the power and disconnect
the power cord from this unit.
3-9
DPP-SV88 V1
Signal generator
Video output
(75
(75
Z
)
S video
output
output
S video cable
Video
output
output
Video cable
Video input
Oscilloscope
Monitor TV
75
Z
terminator
DPP-SV88
3-3. Video Input Level Check and Adjustment
n
Input a video signal to this unit when confirming and adjusting the level of a video input signal.
Input a video signal to this unit when confirming and adjusting the level of a video input signal.
Input the color-bar signal of the signal level (during 75
Z termination) below to the video input terminal.
Equipment required
. Monitor television (with S video input)
. Oscilloscope (a band of 30 MHz or higher)
. Signal generator
. 75 Z terminator
. Video cable
. S video cable
. Oscilloscope (a band of 30 MHz or higher)
. Signal generator
. 75 Z terminator
. Video cable
. S video cable
Connection diagram
For J and UC
J, UC:
NTSC signal
SYNC:
286mV p-p
±
1%
BURST:
286mV p-p
±
1%
White luminance signal: 714mV p-p
±
1%
Red chroma signal:
681mV p-p
±
1%
For CED and CEK
CED, CEK:
PAL signal
SYNC:
300mV p-p
±
1%
BURST:
300mV p-p
±
1%
White luminance signal: 700mV p-p
±
1%
Red chroma signal:
664mV p-p
±
1%
3-10
DPP-SV88 V1
Procedure
1.
Enter the service mode, move the
\ mark to “YC in level” using Direction keys, and press the
Enter key. (Fig. 3-12)
2.
The color-bar signal that was video-input to the monitor is displayed.
3.
Adjust using Direction keys (
↑
,
↓
,
←
, and
→
) so that the video output level (SYNC to 100%
white) and red signal level satisfy the specifications.
Video output level (Use
↑
and
↓
keys.)
Specifications: 1
±
0.04 V p-p
n
↑
key: Increases the level.
↓
key: Decreases the level.
Red signal level (Use
←
and
→
keys.)
Specifications: 550
±
20 mV p-p (J and UC)
520
±
20 mV p-p (CED and CEK)
n
→
key: Increases the level.
←
key: Decreases the level.
4.
Confirm that the video output level and red signal level satisfy the specifications and press the Enter
key.
key.
5.
When the monitor screen returns to the screen shown in Fig. 3-12, turn off the power and disconnect
the power cord from this unit.
the power cord from this unit.
Fig.3-12
4-1
DPP-SV88 V1
Section 4
Troubleshooting
4-1. Electrical Troubleshooting
Trouble: No video signal is output. (No monitor screen is displayed on the monitor.)
Remedy:
Remedy:
. Confirm the flat cable (DKVS42).
. Confirm IC202 on the DK-42 board and the peripheral circuit.
. Confirm that the input select key is set to positions other than “Personal computer”.
. Confirm IC202 on the DK-42 board and the peripheral circuit.
. Confirm that the input select key is set to positions other than “Personal computer”.
n
A video signal cannot be output when the input select key is set to “Personal computer”.
A video signal cannot be output when the input select key is set to “Personal computer”.
Confirm using the input select key of the DPP-SV88 (hereafter referred to as this unit).
. Confirm the flexible flat cable (14-pin) when a video signal is not output with the
input select key set to “Video”.
Trouble: No memory stick image can be read.
Remedy:
Remedy:
. Confirm that the input select key is set to Memory stick.
. Confirm CN181 on the DK-42 board and the peripheral circuit.
. Confirm IC101 on the DK-42 board and the peripheral circuit.
. Confirm that an image is based on the compatible file format.
. Confirm CN181 on the DK-42 board and the peripheral circuit.
. Confirm IC101 on the DK-42 board and the peripheral circuit.
. Confirm that an image is based on the compatible file format.
Trouble: No PC card image can be read.
Remedy:
Remedy:
. Confirm that the input select key is set to PC card.
. Confirm CN254 on the DK-42 board and the peripheral circuit.
. Confirm IC251 on the DK-42 board and the peripheral circuit.
. Confirm that an image is based on the compatible file format.
. Confirm CN254 on the DK-42 board and the peripheral circuit.
. Confirm IC251 on the DK-42 board and the peripheral circuit.
. Confirm that an image is based on the compatible file format.
Trouble: No CD-R/RW image can be read or written.
Remedy:
Remedy:
. Confirm the flexible flat cable (45-pin).
. Confirm IC501 to IC509 on the DK-42 board and the peripheral circuit.
. Confirm the CD-R/RW unit.
. Confirm that the CD-R or CD-RW media is not cracked or deformed.
. Confirm IC501 to IC509 on the DK-42 board and the peripheral circuit.
. Confirm the CD-R/RW unit.
. Confirm that the CD-R or CD-RW media is not cracked or deformed.
Trouble: A printer is not recognized by the personal computer.
Remedy:
Remedy:
. Confirm the flexible flat cable (30-pin).
. Confirm IC951 on the MD-42 board and the peripheral circuit.
. Confirm IC101 on the DK-42 board and the peripheral circuit.
. Confirm IC951 on the MD-42 board and the peripheral circuit.
. Confirm IC101 on the DK-42 board and the peripheral circuit.
Trouble: No buttons on the operation panel can be operated.
Remedy: Confirm the harness (SW42).
Trouble: No remote control operation can be performed.
Remedy:
Remedy:
. Confirm IC501 and IC511 on the DK-42 board and the peripheral circuit.
. Confirm the remote controller.
. Confirm the remote controller.
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