8-11
MAX.
MIN.
C519 WAVE
TILT
LEFT/RIGHT
CORNER
BTM BALANCE
CORNER
TOP BALANCE
IMAGE
IMAGE
OSM MENU
C519 WAVE
(
Fig.2.8) Voltage at C519 and screen image
3) Horizontal Drive Circuit
The horizontal drive system uses what is generally referred to as a flyback system.
The horizontal drive pulse output from IC501 pin 25 switches Q555 on and off.
It is amplified by T551 and switches Q561 (the horizontal output transistor) on and off.
The voltage of C552 for horizontal drive is fixed at 15V.
4) Horizontal Deflection Output Circuit
It corrects the optimum horizontal linearity by using Linear-coil and S correction capacitor to change the
horizontal frequency mode. Horizontal frequency mode is shown in CPU CIRCUIT description section.
The Inductance of Linear-coil (T571) varies with horizontal frequency.
①
Variable Linearity Coil (T571)
Horizontal circuit has variable linearity coil (T571) and control the character to optimum in all resolution.
The value of T571 is changed by current of control coil and ambient circuit. The current goes down at
the lower frequency and goes up at the higher frequency due to change the base voltage of Q571.
Base voltage is adjusted to optimum by H.LINEARITY1 and H.LINEARITY2 as following.
Q571
H.LINEARITY2
Base
H.LINEARITY1
31KHz
60KHz
106KHz
Horizontal Frequency
②
S-Correction Circuit
IC571 (I/O Expander) make the matrix of FH band, and it switches a FET array (MQ571).
*Matrix of FH band (Refer to Fig. 6-1)
Summary of Contents for MultiSync FP1370
Page 13: ...4 4 REMARK SYMBOL Mount the EMF PWB 121E REMARK SYMBOL Clamp the connector ...
Page 14: ...4 5 REMARK SYMBOL COIL FORMING UPPER SIDE REMARK SYMBOL COIL FORMING LOWER SIDE ...
Page 23: ...4 14 REMARK SYMBOL REMARK SYMBOL Clamp CN CA CN CC and CN D with CLAMPER WIRE ...
Page 26: ...4 17 REMARK SYMBOL Clamp the wires SAFETY REMARK SYMBOL Clamp the wires CN ASD CN AF 21 ...
Page 80: ...5 51 Fig 3 11 CONV PWB Fig 3 12 EMF PWB CN EMF CN LL CN RR CNEM CN CA CN D CN CCB HS8N1 ...
Page 143: ...8 18 15V 80V AFC D FOCUS Fig 3 1 HIGH VOLTAGE CIRCUIT AND PROTECTOR CIRCUIT ...
Page 260: ...10 1 ...
Page 261: ...10 2 ...
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Page 263: ...10 4 ...
Page 264: ...10 5 ...
Page 266: ...for Human Potential ...
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