JVC Model 200 service manual ILAs, Scan Reversal Board

Models: Model 200

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Chapter 2---System Description

 

ILAs

 

 

OUTPUTS

DESCRIPTION

 

 

RED_ILA+

The positive output of red ILA driver circuitry, about ± 12 VPP

RED_ILA-

The negative output of red ILA driver circuitry, about ± 12 VPP

 

 

GRN_ILA+

The positive output of green ILA driver circuitry, about ± 12 VPP

 

 

GRN_ILA-

The negative output of green ILA driver circuitry, about ± 12 VPP

 

 

BLU_ILA+

The positive output of blue ILA driver circuitry, about ± 12 VPP

 

 

BLU_ILA-

The negative output of blue ILA driver circuitry, about ± 12 VPP

 

 

ILA_THERM+

The positive side of the ILA temperature sense line

 

 

ILA_THERM-

The negative side of the ILA temperature sense line

 

 

 

Scan Reversal Board

 

 

INPUTS

DESCRIPTION

 

 

X_RED-

Current feedback of red horizontal (X) convergence amplifier

X_GRN-

Current feedback of green horizontal (X) convergence amplifier

 

 

X_BLU-

Current feedback of blue horizontal (X) convergence amplifier

 

 

Y_RED-

Current feedback of red vertical (Y) convergence amplifier

 

 

Y_GRN-

Current feedback of green vertical (Y) convergence amplifier

 

 

Y_BLU-

Current feedback of blue vertical (Y) convergence amplifier

 

 

 

 

OUTPUTS

DESCRIPTION

 

 

X_RED+

Output of red horizontal (X) convergence amplifier

X_GRN+

Output of green horizontal (X) convergence amplifier

 

 

X_BLU+

Output of blue horizontal (X) convergence amplifier

 

 

Y_RED+

Output of red vertical (Y) convergence amplifier

 

 

Y_GRN+

Output of green vertical (Y) convergence amplifier

 

 

Y_BLU+

Output of blue vertical (Y) convergence amplifier

 

 

 

Horizontal/Vertical Deflection Board

 

 

INPUTS

DESCRIPTION

 

 

WIDTH_

A DC wave form for controlling width of picture. About 4 V max.

CONTROL

 

 

 

OUTPUTS

DESCRIPTION

Model 200 Service Manual

2-55

Page 69
Image 69
JVC Model 200 service manual ILAs, Scan Reversal Board