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S CONFIDENTIAL CSV-1
Sony Service Company
National Technical Services Service Bulletin
A Division of Sony Electronics Inc.
Park Ridge, New Jersey 07656 TV Products
Model: KP-53HS20, KP-53HS30, KP-61HS20 No. 558
KP-61HS30, KP-43HT20
Subject: Grainy/Noisy picture with DSS, DVD inputs Date: January 30, 2002
(MPEG Sources)
Symptom:
(133X) Grainy/Noisy picture with DSS, DVD inputs, (MPEG sources) on Video 1-4 inputs.
Cause: MPEG input source has noise/artifacts on input signal due to high compression rates
used.
Solution: Please change the following Service Data in each input and picture mode as listed
Instruct the customer to view in "Pro" picture mode for the worst signal sources.
Category: MID5, 2150P
Item Data Pix Mode Input Source
MHYO 1>0 Vivid, Standard RF & Video
MVYL 1>0 Vivid, Standard RF & Video
UBOF 15>7 Standard RF & Video
MHYR 0>1 Pro Mode RF & Video
Serial numbers affected Prior to December 2001 Production.
To apply Service Bulletin data:
1. Receive RF signal.
2. Set picture mode to Vivid
2-1. Change MID 5 (8) MHYO 1>0
2-2. Change MID5 (14) MVYL 1>0
2-3. Write the data (Mute Enter).
Continue on next page
Reference: SBR-C201 PRINTED IN USA
TV Products Service Bulletin No. 558
3. Change picture mode to Standard.
3-1. Change MID5 (8) MHYO 1>0.
3-2. Change MID5 (14) MVYL 1>0.
3-3. Change 2150P-3 (16) UBOF 15>7.
3-4. Write the data (Mute Enter).
4. Change picture mode to Pro.
4-1 Change MID5 (5) MHYR 0>1.
4-2 Write the data (Mute Enter).
5. Go to Video 1 (input signal not required).
6. Set picture mode to Vivid.
6-1. Repeat 2-1 to 2-3.
7. Set picture mode to Standard.
7-1 Repeat 3-1 to 3-4.
8. Set picture mode to Pro.
8-1 Repeat 4-1 to 4-2.