Electrical Adjustment - Sony HCD-S550 Service Manual

6. VERSION INFORMATION
[6]
On the Test Mode Menu screen, selecting displays the ROM
version and region code.
The parenthesized hexadecimal number in version field is checksum
value of ROM.
## Version Information ##
IF con. Ver.x. xx
SYScon. Ver.x. xx (xxxx)
Model DAV-Sxxx
Region 0x
Front End Ver.x.xx
Exit: RETURN
IF con. : The version of system controller (IC901).
SYScon. : The version of DVD system processor (IC206).
Front End: The version of mechanism controller (IC301).
7. VIDEO LEVEL ADJUSTMENT
[7]
On the Test Mode Menu screen, selecting displays color bars
for video level adjustment. During display of color bars, OSD
disappears but the menu screen will be restored if pressing the
[RETURN]
key.

ELECTRICAL ADJUSTMENT

AUTO SERVO ADJUSTMENT
After parts related to the servo circuit (RF amplifier (IC001), DSP
(IC401), motor driver (IC501), EEPROM (IC302) so on) are
replaced, re-adjusting the servo circuit is necessary. Select "ALL"
at "1. DRIVE AUTO ADJUSTMENT" (Refer to page 21 in TEST
MODE) and adjust DVD-SL (single layer), CD and DVD-DL (dual
layer).
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HCD-S550/S880
SECTION 6
Ver 1.4