Sharp AR-C150 Service Manual page 25

[How to read the pattern]
When deflection is made to the positive (+) side in the rough adjust-
ment, increase the value on the positive (+) side.
When the deflection is made to the negative (–) side in the rough ad-
justment, increase the value on the negative (–) side.
When the read value is –27
20
∗
C
(Example)
When the simulation is set to 105,
newly set to 132 (= 105 + 27).
If the rough adjustment pattern or the fine adjustment pattern is not in
the above range, perform the following procedures
5) Calculate the shift from the adjustment reference position for each
adjustment mode.
The sum of the shift of rough adjustment reference and the shift of
fine adjustment is the actual shift.
Shift (Correction value) = Rough adjustment shift + Fine adjust-
ment shift
The interval between scales of the rough adjustment reference
corresponds to 20. Be careful of polarities of the shift (positive or
negative) when calculating.
6) Select the mode to be adjusted with the scroll key.
7) Add or reduce to or from the current adjustment value, enter the
obtained value, and press the [OK] key.
(= –20–7)
∗
A: Rough adjustment pattern
∗
B: Fine adjustment pattern
∗
C: Adjustment range
7 – 14
When the read value is 27
(= 20+7)
∗
A
∗
B
(Example)
When the simulation is set to 105,
newly set to 132 (= 105 – 27).
•
When the shift (correction value) is positive:
Adjustment value = Current adjustment value + Shift (Correc-
tion value)
•
When the shift (correction value is negative:
Adjustment value = Current adjustment value – Shift (Correc-
tion value)
8) Press the [EXECUTE] key.
The adjustment pattern is printed.
Check that the conditions of procedure 4) are satisfied.
Repeat procedures 4) – 8) until the conditions of procedure 4) are
satisfied.
NOTE: Before performing this adjustment, SIM 44-20 (drum phase
adjustment) must have been adjusted properly.
AR-C150
–20
∗
C