JVC Model 200 service manual Arc Lamp Power Supply, Low Voltage Power Supply

Models: Model 200

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Chapter 2---System Description

 

 

 

 

 

 

IIC_DATA

 

IIC data line. Bidirectional serial line for synchronous data transfer

 

 

 

 

between the SCB and the Horizontal/Vertical Deflection board.

 

 

 

 

I=Input, O=Output.

 

 

 

 

O V_RED_LIN_CONTROL

 

 

 

 

O V_GRN_LIN_CONTROL

 

 

 

 

O V_BLU_LIN_CONTROL

 

 

 

 

O V_RED_EDGE_CONTROL

 

 

 

 

O V_GRN_EDGE_CONTROL

 

 

 

 

O V_BLU_EDGE_CONTROL

 

 

 

 

O L/R_KEY_CONTROL

 

 

 

 

O L/R_PIN_CONTROL

 

 

 

 

O

WIDTH_CONTROL

 

 

 

 

O H_RED_CENT_CONTROL

 

 

 

 

O H_GRN_CENT_CONTROL

 

 

 

 

O H_BLU_CENT_CONTROL

 

 

 

 

O V_RED_CENT_CONTROL

 

 

 

 

O V_GRN_CENT_CONTROL

 

 

 

 

O V_BLU_CENT_CONTROL

 

 

 

 

O

FRONT/REAR

 

 

 

 

O

FLOOR/CEIL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

High Voltage Power Supply

 

 

 

 

 

 

 

INPUT

 

DESCRIPTION

 

 

 

 

 

 

 

/HV_OK

 

The high voltage status line. Low = operational HVPS.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Low Voltage Power Supply

 

 

 

 

 

 

 

INPUTS

 

DESCRIPTION

 

 

 

 

 

 

 

+ 5.1V

 

Power for digital portion of SCB

 

 

+15V

 

Power for the analog portions of the SCB

 

 

 

 

 

 

 

-15V

 

Power for the analog portions of the SCB

 

 

 

 

 

 

 

+5.1V_Stby

 

Standby power to the CPU and peripherals.

 

 

 

 

 

 

 

/LV_OK

 

Tells SCB status of non-standby supply (all outputs working or not)

 

 

 

 

 

 

 

 

 

 

 

 

OUTPUTS

 

DESCRIPTION

 

 

 

 

 

 

 

FAN_ENA

 

Signal to enable the 24V standby power

 

 

LV_ENA

 

Signal to enable the LVPS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Arc Lamp Power Supply

 

 

 

 

 

 

 

INPUTS

 

DESCRIPTION

 

 

 

 

 

 

 

/LAMP_OK

 

Informs SCB that the Arc Lamp is installed, temperature is within

 

 

 

 

limits, and lamp cooling blower is working

 

2-38

Model 200 Service Manual

Page 52
Image 52
JVC Model 200 service manual Arc Lamp Power Supply, Low Voltage Power Supply