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2. Alignment and Adjustment
2-1 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 "SW715 (TEST)" button on F/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.

2-1-1 Location of adjustment button of remote control

VCR POWER

TV POWER

EJECT

REPEAT

INDEX

SYSTEM

AUDIO

SELECT VCR TV

1

2 5 8 0

3
DISPLAY INPUT

X-Point (Tracking Center) Adjustment ("5" Button) Head Switching Adjustment ("SPEED" Button)

4 7
100

6
VOL CH

9
SPEED

PLAY

REW

F.F

REC

STOP

P/STILL

A.DUB

IPC

TV/VCR

MENU

VCR Plus+

NVRAM Option Setting ("MENU" Button)
AUTO

OK

CLR/RST
SL

G KIN AC TR

OW

V RE

FW D

Remote Control for adjustment is not supplied as a Service Jig. Fig. 2-1 Samsung Electronics 2-1

Alignment and Adjustment

2-1-2 SW715 (TEST) location for adjustment mode setting

PRESS

Fig. 2-2 F/Timer PCB (Top View)

2-2

Samsung Electronics

Alignment and Adjustment

2-2 Mechanical Adjustment
Note : Refer to the Mechanical Manual "DX-9R (AC68-00001A)" for the adjustment and confirmation of ass'y full deck.

2-2-1 The number and position of test point
Test point : TP01-1 (Video output) TP01-2 (Audio output) TP01-3 (Envelope) TP01-4 (H'D S/W -Trigger) TP01-5 (Control Pulse)

AUDIO OUTPUT ENVELOPE HEAD SWITCHING

Fig. 2-3 Location of Test point (Main PCB-Top View)

2-2-2 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 "SW715 (TEST)" button on F/Timer PCB to set the adjustment mode. (See Fig. 2-2) 3) Press the "5" button of remote control then adjustment is operated automatically. (See Fig. 2-1) Samsung Electronics

4) Connect the CH-1 probe to TP01-3 (Envelope) the CH-2 probe to TP01-4 (H'D 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.

2-3

Alignment and Adjustment

2-3 Head Switching Point Adjustment
1) Playback the alignment tape. 2) Press the "SW715 (TEST)" button on F/Timer PCB to set the adjustment mode. (See Fig. 2-2) 3) Press the "SPEED" button of remote control then adjustment is operated automatically. (See Fig. 2-1) 4) Turn the Power off.

2-4 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 "SW715 (TEST)" button on F/Timer PCB to set the adjustment mode. (See Fig. 2-2) 2) Press the "MENU" button on the remote control about 5 seconds then option setting display is appeared. (See Fig. 2-4) 3) Select the option number (See Table 2-1) of corresponding model with "FF" and "REW" button on the remote control. 4) If selecting the option number is completed, press the "PLAY" button of remote control. (If "PLAY" button is pressed, the selected number is changes reversed color. ; See Fig. 2-4) 5) Press the "MENU" button of remote control again to store the option number. ("PLEASE WAIT" is displayed for a second as shown Fig. 2-5 and this setting is completed.) 6) Turn the Power off.

OPTION ** 03 04 DIODE ** 01 02 05 06 07
09 17 25 33 41 49 10 18 26 34 42 50 11 19 27 35 43 51 12 20 28 36 44 52 13 21 29 37 45 53 14 22 30 38 46 54 15 23 31 39 47 55

08 16 24 32 40 48 56

OPTION ** 03 04 DIODE ** 01 02 05 06 07
09 17 25 33 41 49 10 18 26 34 42 50

CNG :

SAVE : MENU

08 11 12 13 14 15 16 19 20 21 22 23 24 27 28 29 30 31 32 35 36 37 38 39 40 43 44 45 46 47 48 51 52 53 54 55 56 PLEASE WAIT CNG : SAVE : MENU
Fig. 2-5

Fig. 2-4
AREA CANADA MIDDLE ASIA C.I.S. OPTION NUMBER

1, 6, 8, 12, 13, 14, 16, 17, 18, 19, 20, 21, 22, 30, 38, 42, 43, 44, 46, 50, 53 6, 8, 12, 13, 15, 17, 18, 19, 20, 21, 22, 25, 38, 42, 44, 46, 50, 53, 54 6, 8, 12, 13, 15, 17, 18, 19, 20, 21, 22, 27, 38, 42, 44, 46, 50, 53, 54

2-4

Samsung Electronics