2-26
SUB COLOR
SUB TINT
SUB BRIGHT
SUB SHARPNESS
R CUT -OFF
G CUT -OFF
B CUT -OFF
G DRIVE
B DRIVE
SUB CONTRAST
H CENTER
V SIZE
C0 – FF, 00 – 3F
E0 – FF, 00 – 1F
C0 – FF, 00 – 3F
E0 – FF, 00 – 1F
00 – 7F
00 – FF
00 – FF
00 – 7F
00 – 7F
00 – 0F
00 – 0F
00 – 7F
Control functions
Range
Default
00
00
F0
00
1E
3C
3C
40
40
06
08
40
SUB TINT
00
SUB TINT
00
SUB COLOR
00
Control Function
Value to be
adjustment
CH1: TP2005
CH2: TP2006
5V
5ms 1
5V
1
2
3
4
5
6
1. Connecting Point
3. Volts/DIV
5. Time/DIV
2. Volts/DIV
4. Connecting Point
6. Trigger Channel of
the Scope
1 : CH1
2 : CH2
CH1
CH2
ELECTRICAL ADJUSTMENT
PROCEDURES
TEST EQUIPMENT
To do all of these electrical adjustments, the following equipment
is required.
1. Dual-Trace Oscilloscope
Voltage Range
: 0.001 to 50V/Div.
Frequency Range
: DC to 50MHz
Probes
: 10:1, 1:1
2. NTSC Video Pattern Generator
3. DVM(Digital Volt Meter)
Voltage Range
: 0.01 to 50V
4. Plastic Tip Driver and Non-Metal Driver
5. Isolation Transformer (Variable)
6. VHS Alignment Tape (VFMS0003H6)
7. Degaussing Coil
8. White Pattern Generator
9. White Balance Meter
HOW TO READ THE ADJUSTMENT
PROCEDURES
Fig. E1
EVR (Electronic Variable Register)
Adjustment with the remote control
This unit has electronic technology using I
2
C Bus concept.
The following control functions are adjusted by using "On
Screen Displays" and the remote control instead of adjusting
mechanical controls (VR).
Fig. E2-1 Control Functions
HOW TO ENTER EVR ADJUSTMENT MODE
Press and hold STOP, FF, and VOL DOWN button together
on the unit over 5 seconds with no cassette inserted.
The adjustment overlay will appear.
Fig. E2-2
HOW TO ADJUST
1. Press CH UP/DOWN key on the remote control to select
control function to be adjusted.
Important Note:
Make a note of the original value of the controls before
modifying in case the wrong control is adjusted.
2. Press VOL UP/DOWN key on the remote control so that the
shaded area moves to the value.
Fig. E2-3
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