Sony SLV-LX777 Service Manual ▷ View online
5-1
SLV-LX777
5. ALIGNMENT AND ADJUSTMENT
5-1 REFERENCE
1) X-Point (Tracking center) adjustment and “Head switching adjustment” can be adjusted with remote control.
2) When replacing the Micom (IC601) and NVRAM (IC603 ; EEPROM) be sure to adjust the “Head switching adjustment”.
3) When replacing the cylinder ass’y, be sure to adjust the “X-Point” and “Head switching adjustment”.
4) How to adjustment.
- Monmently short-circuit the test point on Main PCB with pincers to set the adjustment mode.
- If the corresponding adjustment button is pressed, the adjustment is performed automatically.
- If the adjustment is completed, be sure to turn the power off.
5-1-1 Location of adjustment button of remote control
Fig. 5-1
X-Point (Tracking Center)
Adjustment
Adjustment
Head Switching Adjustment
NVRAM Option Setting
5-2
Short-Circuit for few
seconds and release.
(Just one time)
Fig. 5-2 Main PCB (Top View)
5-1-2 Test point location for adjustment mode setting
5-3
Fig. 5-3 Location of Test point (Main PCB-Top View)
AUDIO OUTPUT
HEAD SWITCHING
ENVELOPE
Test point :
TP601 (Control Pulse)
TP602 (H’D S/W -Trigger)
TP301 (Envelope)
TP302 (Audio output)
TP303 (Video output)
5-2 MECHANICAL ADJUSTMENT
Note : Refer to the Mechanical Manual TS-10 (P/N: 9-921-790-11) for the adjustment and confirmation of ass’y deck.
5-2-1 The number and position of test point
5-2-2 ACE Head Position (X-Point) Adjustment
(See the 2-2-1(d) ACE Head Position (X-Point) Adjustment on
page 2-2 of the Mechanical Manual)
page 2-2 of the Mechanical Manual)
1) Playback the alignment tape (KRV-52NE (NTSC)/52PL
(PAL)).
2) Monmently short-circuit the test point on Main PCB with
pincers to set the adjustment mode.
(See Fig. 5-2)
3) Press the “5” button of remote control then adjustment is op-
3) Press the “5” button of remote control then adjustment is op-
erated automatically. (See Fig. 5-1)
4) Connect the CH-1 probe to TP301 (Envelope) the CH-2
probe to TP602 (H’D switching pulse) and then trigger
to CH-1.
to CH-1.
5) Insert the (-) driver into the X-Point adjustment hole
and adjust it so that envelope waveform is maximum.
5-4E
5-3 HEAD SWITCHING POINT ADJUSTMENT
1) Playback the alignment tape.
2) Monmently short-circuit the test point on Main PCB with pincers to set the adjustment mode. (See Fig. 5-2)
3) Press the “SP/EP” button of remote control then adjustment is operated automatically. (See Fig. 5-1)
4) Turn the Power off.
2) Monmently short-circuit the test point on Main PCB with pincers to set the adjustment mode. (See Fig. 5-2)
3) Press the “SP/EP” button of remote control then adjustment is operated automatically. (See Fig. 5-1)
4) Turn the Power off.
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