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| Chapter |
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| HVPS_SYNC |
| Square wave HCT level with 50 or 33% duty cycle synchronized to |
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| horizontal sync. |
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| Video Processor PCB |
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| INPUT |
| DESCRIPTION |
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| /HV_ENA |
| The HVPS enable line. A low enable the HVPS (VA_OK from VPB). |
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| Video Amplifier PCB |
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| OUTPUTS |
| DESCRIPTION |
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| G1_SUPPLY |
| DC supply about |
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| G2_SUPPLY |
| DC supply about 1.3 KV for driving the G2 of CRTs |
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| ARC_GND |
| Return (ground) line for the CRT anodes |
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| Convergence/Deflection PCB |
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| INPUTS |
| DESCRIPTION |
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| H_ |
| Horizontal parabola for use by the dynamic focus amplifier |
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| PARABOLA |
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| V_ |
| Vertical parabola for use by the dynamic focus amplifier |
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| PARABOLA |
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| System Controller PCB |
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| OUTPUT |
| DESCRIPTION |
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| /HV_OK |
| The high voltage status line. Low = operational HVPS |
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Low Voltage Power Supply
INPUTS
DESCRIPTION
| + 15V | + 15 V for use by the HVPS |
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| + 80V | + 80 V for use by the HVPS |
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| - 15V | - 15V for use by the HVPS |
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Model 200 Service Manual |
