Page 1
Samsung Electronics
2-1
2. Alignment and Adjustment
2-1 VCR Adjustment
2-1-1 Adjustment Preparation
1) Before you start
ΠUse the buttons on the SET key when adjusting VCR.
´ When changing the adjustment item, please press the “EASY-Q” and “DISPLAY” buttons on the Set.
ˇ You can change the adjustment value to move the “MENU Selector” Up or Down.
¨ Press the push the “MENU Selector” when storing confirmed adjustment value of each adjustment step in
EEPROM.
ˆ The OSD shows “OK” after finishing each adjustment step.
Ø To clear the adjustment mode, pull out the power source.
2) Function of each buttons on the Set Key
Buttons Description
MENU Selector push (Confirm) Stores changed value in the adjustment and auto adjustment mode.
MENU Selector down (Data Down)
Changes data in the adjustment state.
MENU Selector up (Data Up)
EASY-Q (Mode Up)
Changes mode.
DISPLAY (Mode Down)
<Table 2-1>
3) How to get into the VCR adjust mode
[STEP 1]
ΠConnect the Power source.
´ Set the Power Switch to “PLAYER” position and Mode Switch to “TAPE” position.
Fig. 2-1
MENU Button
EASY Q Button
Start/Stop Button
MENU Selector
MEMORY MIX Button
DISPLAY Button
Mode switch
Power switch
STOP Button
Page 2
2-2
Alignment and Adjustments
Samsung Electronics
[STEP 2]
ΠPress and hold the "STOP" and "MEMORY MIX" buttons on the video camera at the same time for more than
5 seconds.
´ When monitor OSD appears as shown Fig. 2-2, the adjustment mode has been activated successfully.
ˇ Move the “MENU Selector” to highlight VCR ADJ and push the “MENU Selector”.
¨ Monitor OSD shows Fig. 2-3.
Then VCR adjustment mode has been activated successfully.
[STEP 3]
If you want to finish the adjustment mode, you have to do Power Reset.
The Power Reset means that you pull out the power source and pull in it again.
Fig. 2-2
ADJ ITEM
VCR ADJ
CAM ADJ
CODEC ADJ
PRML ADJ
CAM DISP
DSC ADJ
LCD/CVF ADJ
VCRADJ EPR
002 00
EVR
00
Indicates current adjustment item
Indicates the adjusted values
Indicates preset values
Fig. 2-3
2-1-2 VCR Adjustment
ΠGet into VCR ADJUST mode.
´ Move to the VCR ADJUST address “620”.
ˇ Play standard tape, and “Head Switching Position” will be adjusted automatically.
Mode
(Address)
Name Value Description
620 SWP Position 80 Head Switching Position Adjust
<Table 2-2>
Page 3
Alignment and Adjustments
2-3
Samsung Electronics
2-2 Camera Adjustment
Note : How to adjust the camera system.
1) EEPROM stores confirmed adjustment value of each adjustment step.
2) DSP (Digital Signal Process : ICA01-Main PCB) digitalizes the camera signal.
3) When changing IC705-Main PCB of EEPROM, readjust Main PCB.
While changing LCD PCB and CVF PCB- always readjust each part.
Since EEPROM stores confirmed adjustment value of each adjustment step, readjusting must be performed in order
to store the changed data.
4) Adjust the following items after changing LENS Ass’y.
ΠLens Zoom Track
´ Auto HALL
ˇ Auto IRIS
5) Adjust the following items after changing EEPROM and Camera Main PCB.
ΠLens Zoom Track
´ Zoom VR Center
ˇ Auto HALL
¨ Auto IRIS
ˆ Auto White Balance (indoor)
Ø Auto White Balance (outdoor)
2-2-1 Adjustment Preparation
1) Before you start
ΠUse the buttons on the SET key when adjusting Camera.
´ When changing the adjustment item, please press the “EASY-Q” and “DISPLAY” buttons on the Set.
ˇ You can change the adjustment value to move the “MENU Selector” Up or Down.
¨ Press the push the “MENU Selector” when storing confirmed adjustment value of each adjustment step in
EEPROM.
ˆ The OSD shows “OK” after finishing each adjustment step.
Ø To clear the adjustment mode, pull out the power source.
2) Function of each buttons on the Sst Key
Buttons Description
MENU Selector push (Confirm) Stores changed value in the adjustment and auto adjustment mode.
MENU Selector down (Data Down)
Changes data in the adjustment state.
MENU Selector up (Data Up)
EASY-Q (address Up)
Changes mode.
DISPLAY (address Down)
<Table 2-3>
Page 4
2-4
Alignment and Adjustments
Samsung Electronics
5) How to set up the camera adjustment mode
[STEP 1]
ΠConnect the Power source.
´ Set the Power Switch to “CAM” position and Mode Switch to “TAPE” position.
[STEP 2]
ΠPress and hold the "STOP" and "MEMORY MIX" buttons on the video camera at the same time for more than
5 seconds.
´ When monitor OSD appears as shown Fig. 2-5, the adjustment mode has been activated successfully.
ˇ Move the “MENU Selector” to highlight CAM ADJ and push the “MENU Selector”.
¨ Monitor OSD shows Fig. 2-6.
Then Camera adjustment mode has been activated successfully.
[STEP 3]
If you want to finish the adjustment mode, you have to do Power Reset.
The Power Reset means that you pull out the power source and pull in it again.
Fig. 2-5
ADJ ITEM
VCR ADJ
CAM ADJ
CODEC ADJ
PRML ADJ
CAM DISP
DSC ADJ
LCD/CVF ADJ
Fig. 2-4
MENU Button
EASY Q Button
Start/Stop Button
MENU Selector
MEMORY MIX Button
DISPLAY Button
Mode switch
Power switch
STOP Button
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Alignment and Adjustments
2-5
Samsung Electronics
2-2-2 Camera Adjustment
Note : "XX XX" indicate the previous preset value and adjusted value.
Press the “MENU Selector” (Confirm) to store the adjusted value.
CAMADJ EPR EVR
00DF 00 00
Adjusted values
Stored values
Fig. 2-6
1) EEPROM Data Initialize
Caution : This adjustment must do following items changing new EEPROM (ICP09) or Main PCB.
Œ Press the “EASY-Q”(Mode Up)/”DISPLAY”(Mode Down) buttons so that OSD shows “00DF XX XX”.
´ Using “MENU Selector”(Data Up/Down) so that display data of EVR is “AA”
ˇ Press the “MENU Selector” (Confirm).
¨ The OSD shows “OK” after finishing the initalize.
2) Lens Zoom Track
Caution : For whole zoom range, it shall be in focus.
The location of a focus lens is moving depending on the location of Zoom Lens.
During adjusting, micom measures the focus location from a near distance to a long.
ΠCamera is set to E-E mode.
´ Focus chart photo.
ˇ Ensure that camera is left an about 3m distance from a focus chart and the focus of lens is placed vertically.
Attach a focus chart to white or gray wall of a flat surface.
¨ Connect a video output terminal to a TV.
ˆ Press the “EASY-Q”(Mode Up)/”DISPLAY”(Mode Down) buttons so that OSD shows "00DE XX XX".
Ø Press the “MENU Selector” (Confirm).
Never impact on the lens when adjusting zoom and focus Lens.
The OSD shows “OK” after finishing the adjustment.
Fig. 2-7
3M ± 1cm
(Be sure to maintain the distance)
CCDLENS
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2-6
Alignment and Adjustments
Samsung Electronics
3) Zoom VR Center
ΠConnect a video output terminal to a TV.
´ Press the “EASY”(Mode Up)/”DISPLAY”(Mode Down) buttons so that OSD shows “00D6 XX XX”.
ˇ Press the “MENU Selector” (Confirm).
¨ Then Micom finds out Zoom VR center position.
Store Zoom VR center value in OB7.
4) Auto HALL
ΠConnect a video output terminal to a TV.
´ Press the “EASY-Q”(Mode Up)/”DISPLAY”(Mode Down) buttons so that OSD shows "00CD XX XX".
ˇ Press the “MENU Selector” (Confirm).
¨ Then micom finds out max. Hall value with an iris opened and min. Hall value with an iris closed.
Store max. and min. value of Hall in OAD and OAC respectively.
ˆ The OSD shows “OK” after finishing the adjustment.
5) Auto IRIS Level
ΠConnect a video output terminal to a wave form monitor and a TV.
´ Press the “EASY-Q”(Mode Up)/”DISPLAY”(Mode Down) buttons so that OSD shows "00CE XX XX".
ˇ Press the “MENU Selector” (Confirm).
¨ Then micom finds out max. Hall value with an iris opened and min.
Hall value with an iris closed. Store max. and min. value of in 00BC, 00BD and 00BB respectively.
ˆ The OSD shows “OK” after finishing the adjustment.
6) Auto White Balance (indoor)
Œ Camera mode & 3100˚ K/5100˚ K gray scale chart.
´ Connect a video output terminal to a vectorscope and a TV.
ˇ Press the “EASY-Q”(Mode Up)/”DISPLAY”(Mode Down) buttons so that OSD shows "00D4 XX XX".
¨ Ensure that camera picks up image 40µs on 3100˚K gray scale chart precisely and the illumination is 1500~2000
Lux.
ˆ Press the “MENU Selector” (Confirm) to ensure that white spot on a vectorscope is moving in the middle of
screen.
Ø The OSD shows “OK” after finishing the adjustment.
7) Auto White Balance (outdoor)
Œ Camera mode & 3100˚ K/5100˚ K gray scale chart.
´ Connect a video output terminal to a vectorscope and a TV.
ˇ Press the “EASY-Q”(Mode Up)/”DISPLAY”(Mode Down) buttons so that OSD shows "00D5 XX XX".
¨ Ensure that camera picks up image 40 µs on 5100 gray scale chart (3100 gray scale chart + C16 filter) precisely
and the illumination is 1500~2000 Lux.
ˆ Press the “MENU Selector” (Confirm) to ensure that white spot on a vectorscope is moving in the middle of
screen.
Ø The OSD shows “OK” after finishing the adjustment.
Page 7
Alignment and Adjustments
2-7
Samsung Electronics
2-3 LCD Adjustment
2-3-1 Adjustment Preparation
1) Before you start
ΠUse the buttons on the SET key when adjusting LCD.
´ When changing the adjustment item, please press the “EASY-Q” and “DISPLAY” buttons on the Set.
ˇ You can change the adjustment value to move the “MENU Selector” Up or Down.
¨ Press the push the “MENU Selector” when storing confirmed adjustment value of each adjustment step in
EEPROM.
ˆ The OSD shows “OK” after finishing each adjustment step.
Ø To clear the adjustment mode, pull out the power source.
2) Function of each buttons on the Set Key
Buttons Description
MENU Selector push (Confirm) Stores changed value in the adjustment and auto adjustment mode.
MENU Selector down (Data Down)
Changes data in the adjustment state.
MENU Selector up (Data Up)
EASY-Q (Mode Up)
Changes mode.
DISPLAY (Mode Down)
<Table 2-4>
Page 8
2-8
Alignment and Adjustments
Samsung Electronics
Fig. 2-9
ADJ ITEM
VCR ADJ
CAM ADJ
CODEC ADJ
PRML ADJ
CAM DISP
DSC ADJ
LCD/CVF ADJ
3) How to get into the LCD adjust mode
[STEP 1]
ΠConnect the Power source.
´ Set the Power Switch to “CAM” position and Mode Switch to “TAPE” position.
[STEP 2]
ΠPress and hold the "STOP" and "MEMORY MIX" buttons on the video camera at the same time for more than
5 seconds.
´ When “ADJ ITEM” OSD appears at the monitor as shown Fig. 2-9, move to a “ CAM ADJ” through
“Menu Selector” scrolling and press the “Menu Selector”.
Fig. 2-10 will be shown in LCD screen and move to Address No. “012C” to adjust its value as “01”.
In order to save the modification value, press the “Menu Selector” again.
(this is for setting up of Color Bar output.)
◆ After completing all of adjustment, the Value of Address No. “012C” must necessarily return as “00”.
ˇ Move a Power Switch to OFF. (Don’t have to plug it out)
Fig. 2-8
MENU Button
EASY Q Button
Start/Stop Button
MENU Selector
MEMORY MIX Button
DISPLAY Button
Mode switch
Power switch
STOP Button
Fig. 2-10
CAMADJ EPR EVR
012C XX 01
Adjusted values [01]
Address values [012C]
Page 9
Alignment and Adjustments
2-9
Samsung Electronics
[STEP 3]
Œ Set the Power Switch to “CAM” position and Mode Switch to “TAPE” position.
´ Press and hold the "STOP" and "MEMORY MIX" buttons on the video camera at the same time for more than
5 seconds.
ˇ When monitor OSD appears as shown Fig. 2-11, the adjustment mode has been activated successfully.
¨ Move the “MENU Selector” to highlight LCD/CVF ADJ and push the “MENU Selector”.
ˆ Monitor OSD shows Fig. 2-12.
Then LCD adjustment mode has been activated successfully.
Fig. 2-11
ADJ ITEM
VCR ADJ
CAM ADJ
CODEC ADJ
PRML ADJ
CAM DISP
DSC ADJ
LCD/CVF ADJ
Fig. 2-12
LCD
XX EPR : XX EVR : XX
Adjusted values
Address values
Page 10
2-10
Alignment and Adjustments
Samsung Electronics
2-3-2 LCD Adjustment
SHORT POINT (SOLDER LAND 2 POINTS SHORT)
Fig. 2-13 Location of Test point
1) Initial Adjustment
ΠLet two solder lands short. (Refer to Fig. 2-13, two short point)
´ Press a “STOP” button for 3 seconds or more until “INT OK” appears. (See Fig. 2-14)
Fig. 2-14
INT OK
◆ You continuously let two solder lands short until completing all adjustment (from 1] Initial Adj. to 7] VCO Adj.)
and they must be opened after completing all adjustment.
◆ If two solder lands are continuously shorted, the product doesn’t work correctly.
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Alignment and Adjustments
2-11
Samsung Electronics
2) Contrast Adjustment
Œ Move address to “04”.
´ Connect an oscilloscope to the TP “G”.
ˇ Adjust the “EASY-Q”(Mode Up)/”DISPLAY”(Mode Down) buttons so that White Level is 2.4Vp-p.
¨ Be sure to press the “MENU Selector”(Confirm) push button to memorize setting.
ˆ The OSD shows “OK”.
Fig. 2-15
2.4Vp-p
3) R-Contrast Adjustment
Œ Move address to “05”.
´ Connect an oscilloscope to the TP “R”.
ˇ Adjust the “EASY-Q”(Mode Up)/”DISPLAY”(Mode Down) buttons so that White Level is 2.4Vp-p.
¨ Be sure to press the “MENU Selector”(Confirm) push button to memorize setting.
ˆ The OSD shows “OK”.
Fig. 2-16
2.4Vp-p
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2-12
Alignment and Adjustments
Samsung Electronics
4) B-Contrast Adjustment
Œ Move address to “06”.
´ Connect an oscilloscope to the TP “B”.
ˇ Adjust the “EASY-Q”(Mode Up)/”DISPLAY”(Mode Down) buttons so that White Level is 2.4Vp-p.
¨ Be sure to press the “MENU Selector”(Confirm) push button to memorize setting.
ˆ The OSD shows “OK”.
Fig. 2-17
2.4Vp-p
5) Color Adjustment
Œ Move address to “0B”.
´ Connect an oscilloscope to the TP “B”.
ˇ Adjust Yellow Level with the “EASY-Q”(Mode Up)/”DISPLAY”(Mode Down) buttons so that it should be
more 1.0Vp-p than the Pedestal Level.
¨ Be sure to press the “MENU Selector”(Confirm) push button to memorize setting.
ˆ The OSD shows “OK”.
Fig. 2-18
1.0Vp-p
PEDESTAL LEVEL YELLOW LEVEL
Page 13
Alignment and Adjustments
2-13
Samsung Electronics
6) Tint Adjustment
Œ Move address to “0C”.
´ Connect an oscilloscope to the TP “B”.
ˇ Adjust Yellow Level with the “EASY-Q”(Mode Up)/”DISPLAY”(Mode Down) buttons so that it should be
paralle on a Green Level.
¨ Be sure to press the “MENU Selector”(Confirm) push button to memorize setting.
ˆ The OSD shows “OK”.
Fig. 2-19
YELLOW LEVEL GREEN LEVEL
7) VCO Adjustment
Œ Move address to “0D”.
´ Connect an oscilloscope to the TP “VCO”.
ˇ Adjust the “EASY-Q”(Mode Up)/”DISPLAY”(Mode Down) buttons so that Peak from signal level is
-50mV±10mVp-p.
¨ Be sure to press the “MENU Selector”(Confirm) push button to memorize setting.
ˆ The OSD shows “OK”.
Fig. 2-20
-50mVp-p 10mV
V-Sync
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2-14
Alignment and Adjustments
Samsung Electronics
2-4 Deck Adjustment
2-4-1 Operation Without Housing Assembly
1) Remove the Housing Ass’y from the Deck Ass’y.
2) Connect the Mechanical Chassis to the recorder
circuit to supply voltage.
3) Set to Unload mode.
4) Press the S/W Push (Keep ON status)to start loading, and push the PLAY Key.
(Cover the Top/End sensor with black tape,
because they do not operate.)
Note : For the removal of the Housing Ass’y refer to
4-2-2 (Training Manual;page 4-7).
Connceted the Recorder Circuit
SWITCH C-IN
Fig. 2-21
2-4-2 Setting Mechanical Mode (Without Recorder Circuit)
1) Set the power-supply output to approx. 3V~5V.
2) Choose the polarity (depending on whether loading or unloading).
3) Supply the voltage to the Motor Loading, and set
to the desired mode.
Fig. 2-22
A
B
DC POWER SUPPLY
<Table 2-5>
AB Movement of Chassis
+- Unloading
-+ Loading
Page 15
Alignment and Adjustments
2-15
Samsung Electronics
2-4-3 Maintenance
Carry out the following periodic maintenance checks in order to fully exercise all functions, operations and tape.
After repairing, service the set as follows:
1) Cleaning of Drum Assembly
ΠGently apply lens tissue soaked in ethyl alcohol to the Drum assembly.
Clean the Upper Drum assembly while rotating it slowly counterclockwise(by hand).
Note : Do not rotate the motor by power or rotate the Upper Drum assembly clockwise.
Also, the Head tip will be damaged if the lens tissue is moved in a perpendicular direction.
Be sure to follow these instructions when cleaning the Drum Ass’y
2) Cleaning of Tape Path
ΠIn EJECT mode, clean the tape path system(from Pole Tension P1 through Pole Review P8, Pinch Roller and
Capstan Shaft) and the Lower Drum. Using the lens tissue soaked in ethyl alcohol.
Note : Make sure that no oil or grease adheres to the lens tissue.
Fig. 2-23
P1
P2
P3
P4
P7
P5
P6
P8
PINCH ROLLER
Page 16
2-16
Alignment and Adjustments
Samsung Electronics
3) Periodic Maintenance and Check List
When overhauling, refer to the following table.
2mm
OIL
◆ When lubrication bearings, be sure to keep the oil
free of dust. (Oil contaminated with dust might
cause the bearings to wear out or seize.)
◆ A “drop”of oil is defined as the amount attached to
the tip of a Ø 2mm stick as shown in Fig. 2-24.
<Table 2-6>
Fig. 2-24
O : Cleaning ∆ : Oil ◆ : Confirmation
Tape
path
system
D
R
I
V
I
N
G
S
Y
S
T
E
M
- Never let oil get on to the tape path
surface.
Maintenance checks
Hours of use (H)
Remark
500 1000 1500 2000 2500 3000 3500 4000 4500 5000
Cleaning of tape path O O O O O O O O O O
Cleaning and degaussing of drum ass’y
OOOOOOOOOO
Capstan Shaft ∆∆∆∆∆
Gear Capstan ∆∆∆∆∆
Gear Pully Shaft ∆∆∆∆∆
Belt Timing ◆ ◆◆◆◆
Motor Loading ◆ ◆◆◆◆
Abnormal Noise ◆◆◆◆◆◆◆◆◆
Back Tension ◆ ◆◆◆◆
Brake System ◆ ◆◆◆◆
PB, REV Torque Measurement
◆ ◆◆◆◆
Confir-
mation
Perform-
ance
Page 17
Alignment and Adjustments
2-17
Samsung Electronics
2-4-4 Mechanical Check and Adjustment
2-4-4(a) Tension Regulator Adjustment
1) Disassembly
Œ For the removal of the Housing Ass’y refer to 4-2-2 (Training Manual;page 4-7).
2) Adjustment
ΠSet to PLAY mode (without cassette tape).
´ Check that the distance between external surface of Holder Loading and extenal diamater of Arm Tension is
0.7±0.3mm. (Fig. 2-25)
ˇ If necessary, proceed to step 4.
¨ If the Arm Tension Œ is located inside (or right) the position specified, adjust the Cap Adjust Œ toward
arrow “A”. (If it is located outside (or left), adjust toward arrow “B”.)
Note : Check if the Arm Tension can be moved toward arrow “C” in PB mode.
3) Reassembly
Œ For the removal of the Housing Ass’y refer to 4-2-2 (Training Manual;page 4-7).
Fig. 2-25
ARM TENSION Œ
CAP ADJUST ´
"A"
"B"
"C"
Page 18
2-18
Alignment and Adjustments
Samsung Electronics
2-4-4(b) Back Tension Confirmation
1) Set up the cassette-torque tape.
2) Set to CAMERA mode, push the EDIT(+) KEY and check that the torque value of Reel S is 5.5±1g.cm.
3) If necessary, proceed to step 4.
4) If the Tension value is Low specified, moved to toward “a”.
If the Tension value is High specified, moved to toward “c”.
Reference : After changed, insert Cassette torque tape and confirm torque value.
Fig. 2-27
REEL DISK S TABLE
RESTING SURFACE
REEL DISK T TABLE
RESTING SURFACE
CHASSIS SUB
Fig. 2-26
2-4-4(c) PB/REV Torque check
1) Set up the cassette torque tape.
2) Set to CAMERA mode, Push the EDIT(+) button and check that the torque value of Reel T is 9±3g.cm.
3) Push the EDIT(-) button and check that the torque value of Reel S is 15±3g.cm.
4) If necessary, replace the defective Reel Disk S, T Ass’y.
2-4-4(d) Reel Table Height Check
1) Removal
Œ For the removal of the Housing Ass’y refer to 4-2-2 (Training Manual;page 4-7).
´ For the removal of the Idler Ass’y refer to 4-2-3 (Training Manual;page 4-8).
2) Check
ΠUsing vernier calipers, check the following distances : From the upper surface of the Sub Chassis to the
resting surfaces of Reel S, T table should each be 3.9±0.1mm.
3) Mounting
Œ For the removal of the Idler Ass’y refer to 4-2-3 (Training Manual;page 4-8).
´ For the removal of the Housing Ass’y refer to 4-2-2 (Training Manual;page 4-7).
Page 19
Alignment and Adjustments
2-19
Samsung Electronics
2-4-5 Tape Path Adjustment
2-4-5(a) Preparation for Adjustment
ΠClean the tape running surface (Poles, Drum, Capstan Shaft, Pinch Roller).
´ Observe the PB RF signal and Head Switching Pulse on an oscilloscope.
ˇ Play back the alignment tape.
¨ Check that the waveform of the RF signal is flat at both inlet and outlet(A in Fig. 2-29).
If not flat (B or C in Fig. 2-29), do adjustments 2-4-5(b) through 2-4-5(d).
RF Signal
(Pin 3 of CNR01)
Head Switching
(Pin 2 of CNR01)
1
2
3
4
5
6
7
8
910
11
12
13
14
15
16
17
18
Fig. 2-28 Rear PCB (Bottom Side)
P1
P2
P5
P6
P7
P8
P3
Fig. 2-30
A
B
C
INLET OUTLET
NORMAL
DEFECT AT INLET
DEFECT AT OUTLET
Fig. 2-29
Page 20
2-20
Alignment and Adjustments
Samsung Electronics
2-4-5(b) Tracking adjustment
ΠPlay Back the alignment tape.
´ Turn P3 to flatten the waveform at the inlet.
ˇ Turn P5 to flatten the waveform at the outlet.
2-4-5(c) Take Up Path Adjustment
ΠPlay back the alignment tape, and confirm that the tape is not twisted between the Guide Roller T and
Capstan. (If the tape is twisted, turn P8, Fig. 2-31)
´ Set to REV mode and observe the outlet waveform of PB RF signal. (Fig. 2-32)
ˇ If the outlet waveform is out-of-spec, turn P8 counterclockwise, and redo steps 1 and 2.
P8
P6
MOTOR CAPSTAN
P2
Fig. 2-31
(DEFECTIVE) (CORRECT)
Fig. 2-32
Page 21
Alignment and Adjustments
2-21
Samsung Electronics
2-4-5(d) Check After Adjustment
1) Tracking Check
ΠPlayback the alignment tape.
´ Confirm that the minimum amplitude value(E min.)is 80% of the maximum value(E max.) or larger.
(Fig. 2-33)
ˇ Confirm that no large fluctuation occur on the waveform. (Fig. 2-34)
2) CUE and REV Check
ΠPlayback the alignment tape, and set to REV mode.
Confirm that the waveform peaks have a uniform Pitch. (Fig. 2-35 A)
If the track pitch is not uniform, do section 2-4-5(b) (Tracking adjustment) and 2-4-5(c) (P8 adjustment).
´ Set to CUE mode.
Confirm that the waveform peaks still have a uniform pitch. (Fig. 2-35 B)
If the track pitch is not uniform, do section 2-4-5(b) (Tracking Adjustment).
Emin Emax
Emax
Emin
80(%)
Fig. 2-33
A
A
C
C
C
1
8
Fig. 2-34
abc a
abc
bc
Fig. 2-35
Page 22
2-22
Alignment and Adjustments
Samsung Electronics
3) Rise Time Check
ΠPlayback the alignment tape.
´ Set to playback mode, and confirm that the waveform of PB RF signal rises flat within 3 seconds.
Also confirm that the tape is not twisted or curled around the Pinch Roller. (Fig. 2-36)
ˇ Run the tape in CUE/REV and FF/REW modes, then playback.
Confirm the waveform of PB RF signal rises flat within 3 seconds. Also confirm that the tape is not twisted or
curled around the Pinch Roller.
¨ Repeat steps 2. and 3.
4) Tape Path Check
ΠIn CUE and REV modes, check that the tape is not curled around the P2, P6 upper flange and P8
upper/Lower flanges.
P8
MOTOR CAPSTAN
P6
P2
Fig. 2-36
P1
FROM THE S REEL
TO THE T REEL
P2
P3
P5
P6
P8
Fig. 2-37
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