HP 9020 CE Servisní příručka

HP 9000 Series 500 Computers Model 520 98760 CE Handbook Part No. 9876()-90039 E 0384 Requires Binder No. 9282-0683 Flin-HEWLETT . a!~ PACKARD Printed

2-4 98760 Environmental/Installation/PM &§J Country Part Number Opt. Voltage @ ev Australia 8120·1369 901 250 , t3 [ill Denmark 8120-2956 912 250

3-1 II Cha;~ I L-______________________________ ~ 98760 Configuration There is no other configuration of the 98760.

3-2 98760 Configuration

4-1 ~ ________________ ~llcM4~rl _ 98760 Troubleshooting . Refer to Dead Display Unit Procedure Initial Display Troubleshooting Flowchart CAUTION MA

4-2 98760 Troubleshooting Refer to Dead Base Troubleshooting Procedure in 9020 CE Handbook Troubleshooting Section. Defective Ribbon Cable >---..

98760 Troubleshooting 4-3 PI P2 To Alpha/Interface Board (A 73) To Alpha/Interface Board (A73) Connector P3; Power Connector P4; lOP Bus SGND 50 49

4-4 98760 Troubleshooting Replace CRTlYoke Assembly Dead Display Unit Troubleshooting Flowchart

Check Voltage Across T101 for Red T201 for Blu T301 for Grn on Video Drive Board Check for continuity T101 to Pin 8 T201 to Pin 6 P301 to Pin 11 Fr

4-6 98760 Troubleshooting Sweep Troubleshooting Flowchart

Point (Read +78V) 98760 Troubleshooting 4-7 i ~O ~ Display Power Supply Test Points Board Number 09836-66550 -12VTest Point

98760 CE Handbook for the HP 9000 Series 500 Mode1520 Computer Manual Part No. 98760-90039 Note This handbook is only for the use of HP-qualified ser

4-8 98760 Troubleshooting

5-1 ~ ________________ ~llcha5~~1 _ 98760 Diagnostics . Powerup The green SWEEP INDICATOR lights at powerup to indicate that the vertical and horizo

5-2 98760 Diagnostics

6-1 ~ ________________ ~llcM6~rl _ 98760 Adjustments . Tools Required Part No. Description 09020-10010 System Integrity Test (SIT) Discs HP 3476 (or

6-2 98760 Adjustments HORIZONTAL CENTER VERTICAL HEIGHT SCREEN GRID FOCUS TP301, GREEN Video Board Pots and Test Points Sweep Board Adjustments CLAM

7-1 ~ ________________ ~II~a7~~1 _ 98760 Systems . The 98760 is a part of the 9020 Product. It is the Standard Color Display for the Product. It is

7 -2 98760 Systems

8-1 ~ ________________ ~II~a8~&1 _ 98760 Replaceable Parts . Repair the 98760 by replacing the faulty assembly. There are exchange assem

8-2 98760 Replaceable Parts Replaceable Parts Index HP Part TQ Description Number Number 1 09836-69550 1 Power Supply Board - Exchange 2 09836-6954

Chapter 1 9R760 Product InformatIOn Chapter 2 9k7fJO f 11\ IrfHlIllf'IHill II1'itilll'ltllll1 PM <.. hdptel ;) ()8760 Conflguratl

9-1 '----________________ ~llcha9~~1 98760 Diagrams . Sweep Tube Drive A40 Reset (Analog) Red Hsync Green Vsync Blue Vblank +75 Digital Video A

9-2 98760 Diagrams

10-1 I Chtaopter I 98760 References . ~----There are no references.

10-2 98760 Reference

11-1 98760 Service Notes Chapter 11 Keep your service notes in this section.

11-2 98760 SerJice Notes

ii Printing History New editions of this manual will incorporate all material updated since the previous edition. Update packages may be issued betwe

1-1 '----________________ ~llcMl~rl _ 98760 Product Information . Cathode Ray Tube: Scan: Vertical Refresh Rate: Horizontal Refresh Rate: Alpha R

1-2 98760 Product Information Configurations The 98760 is available as part of the 9020 Product. The 9020 Product is also referred to as the Model

2-1 ~9_8_76_0_E_n_vi_ro_n_m_e_n_t_allI_n_st_all_a_ti_· 0_0/---, I cha2Pt~ I _ Preventive Maintenance Environmental Range Operating Temperature: Stora

2-2 98760 Environmental/Installation/PM CAUTION ALWAYS SWITCH THE COMPUTER POWER SWITCH TO THE OFF POSITION BEFORE CONNECTING THE 98760 POWER CORD.

Alignment Holes Power Cord Connector Voltage Selector Switch 98760 Environmental/Installation/PM 2-3 Alignment Pegs Aligning Display with Computer Ba