Samsung CK20F1VR5X/BWT, Руководство по обслуживанию

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Alignment and Adjustments
Samsung Electronics 4-3
4-2-3 Test Pattern (Aging Mode)
1. This mode can be used during servicing, or for confirming that the convergence and
purity adjustments are correct.
2. Access the Test Pattern parameters by pressing a CHANNEL keys (
▲
,
▼
) while the
Service Mode is on. The cursor will move to the test pattern. Press the VOLUME
keys. On-screen display:
• WHITE
• AGING
3. AGING Mode (Reference Only)
This pattern is used for pre-heating the CRT during manufacturing
—it is accessed in the factory by twice pressing the “SLEEP
→
FACTORY
→
FACTORY
“ key, then white pattern will be displayed.
Even if the TV power is cut off, the Aging Mode is not cancelled, The aging mode is
cancelled by repressing the “FACTORY” key or pressing the local “CH UP/DOWN”
keys.
4-2-4 Option Bytes
In the Service Mode, various can be selected via the Option Bytes (8 bits each). Example:
NON -TTX MICOM ONLY
TTX MICOM
SYSTEM OSD DISPLAY
BIT 6
L (BIT :0)
BIT 5
L (BIT : 0)
BIT 4
L (BIT : 0)
L (BIT : 0)
BIT 3
H (BIT : 8)
L (BIT : 0)
BIT 2
L (BIT : 0)
L (BIT : 0)
BIT 1
L (BIT : 0)
L (BIT : 0)
BIT 0
L (BIT : 0)
L (BIT : 0)
BYTE 0 : 8 -
BYTE 1 : 0 -
TDA8842, CK SYSTEM, RCA JACK SYSTEM OSD DISPLAY
L (BIT : 1) H (BIT : 0) L (BIT : 0) H (BIT : 0) L (BIT : 1)
BYTE 0 : 11