HP 4262A - Page 203

Section VIII Model 4262A
TROUBLESHOOTING FLOW DIAGRAMS
Figure 8-17. Analog and Digital Section Isolation Procedure. . ................... 8-31
Figure 8-18. Analog Section Troubleshooting Procedure to Assembly Level. ........ 8-33
Figure 8-19. Digital Section Troubleshooting Procedures .. ..................... 8-35
Flow Diagram A. Primary Diagnostic Flow Diagram........................ 8-35
Flow Diagram B. Program ROM Diagnostic Flow Diagram .. ................. 8-35
Flow Diagram C. A23 Board Diagnostic Flow Diagram
(Nanoprocessor and Device Select Decoder) . ... ............ 8-37
Flow Diagram D. A23 Board Diagnostic Flow Diagram
(Analog Section Control Signals) ........................ 8-38
Flow Diagram E. A22 Board Diagnostic Flow Diagram (Clock and RAM) . ...... 8-39
Flow Diagram F. A22 Board Diagnostic Flow Diagram (Display Control) . ...... 840
Flow Diagram G. A21 Board Diagnostic Flow Diagram ..................... 841
Flow Diagram H. A21 Board Diagnostic Flow Diagram ..................... 8-42
8-30