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6. Alignment and Adjustment
6-1 Reference
1) X-Point (Tracking center) adjustment, "Head switching adjustment" and "NVRAM option setting" can be adjusted with remote control. 2) When replacing the Micom (IC601) and NVRAM (IC605 ; EEPROM) be sure to adjust the "Head switching adjustment" and "NVRAM option setting". 3) When replacing the cylinder ass'y, be sure to adjust the "X-Point" and "Head switching adjustment". 4) Among Samsung VCR remote control used for adjustment as a accessory, only the remote control that has figures buttons (0 ~ 9) is available for all adjustment regardless of chassis. 5) How to adjustment. - Press the "TEST" (SV-7000W ; SW711, SV-5000W ; SW718) button on Timer PCB 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.
6-1-1 Location of adjustment button of remote control
VCR POWER
EJECT
Head Switching Adjustment
INDEX
REC.SPEED
CLK/COUNT
PICTURE
TIMER
STROBE
AUDIO
1
2 5 8 0
3
ART INPUT
X-Point (Tracking Center) Adjustment
4 7
100
6
CH
9
CLR/RST
PLAY
REW
F.F
REC
STOP
P/STILL
DISPLAY
MONITOR
A.DUB
INPUT SYSTEM
OUTPUT SYSTEM
OK
NVRAM Option Setting
AUTO
G KIN AC TR
MENU
SL
OW
V RE
FW D
Remote Control for adjustment is not supplied as a Service Jig. Fig. 6-1 Samsung Electronics 6-1
Alignment and Adjustment
6-1-2 Test point location for adjustment mode setting SV-7000W
(TIMER PCB ; Top View)
SV-5000W
(F/TIMER PCB ; Top View) Fig. 6-2
6-2
Samsung Electronics
Alignment and Adjustment
6-2 Mechanical Adjustment
Note : Refer to the Mechanical Manual ÒDX-9R (AC68-00001A)Ó for the adjustment and confirmation of assÕy full deck.
6-2-1 The number and position of test point
TP01
VIDEO OUTPUT AUDIO OUTPUT ENVELOPE H'D S/W-Trigger CONTROL PULSE
Fig. 6-3 Location of Test point (Main PCB-Top View)
6-2-2 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) 1) Playback the alignment tape (Color bar). 2) Press the ÒTESTÓ (SV-7000W ; SW711, SV-5000W ; SW718) button on Timer PCB to set the adjustment mode. (See Fig. 6-2) 3) Press the Ò5Ó button of remote control then adjustment is operated automatically. (See Fig. 6-1)
4) Connect the CH-1 probe to TP01 (Envelope) the CH-2 probe to TP01 (HÕD switching pulse) and then trigger to CH-1. 5) Insert the (-) driver into the X-Point adjustment hole and adjust it so that envelope waveform is maximum. 6) Turn the Power off.
Samsung Electronics
6-3
Alignment and Adjustment
6-3 Head Switching Point Adjustment
1) Playback the alignment tape. 2) Press the ÒTESTÓ (SV-7000W ; SW711, SV-5000W ; SW718) button on Timer PCB to set the adjustment mode. (See Fig. 6-2) 3) Press the ÒREC.SPEEDÓ button of remote control then adjustment is operated automatically. (See Fig. 6-1) 4) Turn the Power off.
6-4 NTSC Skew Adjustment
1) Load the instrument with an alignment tape and playback the color bar signal (NTSC SP color bar tape). 2) Connect CH-1 scope probe (1V/div, 50µs/div.). 3) Connect CH-2 scope probe to video terminal of J4303 (I/O PCB). 4) Set the VCR to RPS (Reverse picture search) or FPS (Forward picture search) mode. 5) Adjust VR4301 (I/O PCB) so that the 100% white and pedestal is as flat as possible. CORRESPOND TO LEVEL
(Before Adjustment)
(After Adjustment)
Fig. 6-4 I/O PCB (Top View) 6-4 Samsung Electronics
Alignment and Adjustment
6-5 NVRAM Option Setting
1) NVRAM Option is adjusted at production line basically. 2) In case Micom (IC601) and NVRAM (IC605 ; EEPROM) is replaced, be sure to set the corresponding option number of the repaired model. (If the option is not set, the unit is not operated.) 1) Press the ÒTESTÓ (SV-7000W ; SW711, SV-5000W ; SW718) button on Timer PCB to set the adjustment mode. (See Fig. 6-2) 2) Press the ÒMENUÓ button on the remote control about 5 seconds then option setting display is appeared. (See Fig. 6-5) 3) Select the option number (See Table 6-1) of corresponding model with Ò Ò and Ò Ò button on the remote control. 4) If selecting the option number is completed, press the Ò Ó button of remote control. (If ÒSTOPÓ button is pressed, the selected number is changes reversed color. ; See Fig. 6-5) 5) Press the ÒOKÓ button of remote control again to store the option number. (ÒPLEASE WAITÓ is displayed for a second as shown Fig. 6-6 and this setting is completed.) 6) Turn the Power off.
** OPTION DIODE **
01 09 17 25 33 41 02 10 18 26 34 42 03 11 19 27 35 43 04 12 20 28 36 44 05 13 21 29 37 45 06 14 22 30 38 46 07 15 23 31 39 47 08 16 24 32 40 48 01 09 17 25 33 41
** OPTION DIODE **
02 10 18 26 34 42 03 04 05 06 07 11 12 13 14 15 19 20 21 22 23 27 28 29 30 31 35 36 37 38 39 43 44 45 46 47 PLEASE WAIT CNG : SAVE : OK
Fig. 6-6
08 16 24 32 40 48
CNG :
SAVE : OK
Fig. 6-5
MODELS SV-7000W SV-5000W
TV SYSTEM NTSC/PAL NTSC PAL
OPTION NUMBER 1, 2, 3, 4, 5, 6, 9, 10, 11, 13, 14, 15, 16 1, 2, 3, 4, 6, 8, 13, 14, 15 1, 2, 3, 4, 5, 9, 10, 11, 13, 14, 15
Samsung Electronics
6-5
Alignment and Adjustment
MEMO
6-6
Samsung Electronics