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TM 11-6625-3145-14
Verification and Adjustment Procedures-318/338 Service
Parallel Analyzer
4. Threshold Voltages on the A02 INPUT-B Board
5. Probe Compensation for the P6107 External Clock Probe
6. EXT CLK T and EXT CLK I Delay
7. RET CLK, WE , ADRS CLK and TRIG CLK Delay and Width
Serial State Analyzer (338S1)
8. Threshold Voltages on the A07 board
9. Input Capacitance and Serial Data Probe Compensation (40 pf)
10.
Non-volatile Memory Battery Backup Threshold
MAINFRAME
1. ADJUST POWER SUPPLIES
Equipment Required
1 Digital Multimeter (DMM)
When performing the following procedures, make sure that all probes are connected properly.
1. Refer to Figure 5-46. Remove the 338 wraparound cover.
2. Install P6451 Parallel Data Probes into each of the four PARALLEL DATA INPUT sockets on the right side
panel
3. Set the DMM to measure dc voltage.
4. Connect the DMM minus (-) lead to J1 pin #9 (GND) on the A12 Regulator board, located at the bottom rear of
the 338.
5. Connect the DMM plus (+) lead to each point starting at -5 V shown in Table 5-13. (Set the DMM range as
required.)
6. Adjust the corresponding potentiometer on the A12 Regulator board to set the voltage level within the limit
WARNING
Exposed high voltages are present on the CRT board.
7. Move the DMM plus (+) lead to each point shown in Table 5-14. (Set the DMM range as required.)
8. Check that the DMM readings are within the limits given in Table 5-14.
5-79
Summary of Contents for 318
Page 119: ...318 VERIFICATION AND ADJUSTMENT PROCEDURES ...
Page 182: ...338 VERIFICATION AND ADJUSTMENT PROCEDURES ...
Page 253: ...318 ___________________ TROUBLESHOOTING TREES ...
Page 344: ...338 TROUBLESHOOTING TREES ...
Page 517: ...TM 11 6625 3145 14 318 338 4434 923 318 Block Diagram ...
Page 518: ...TM 11 6625 3145 14 318 338 4434 924 338 Block Diagram ...
Page 519: ...TM 11 6625 3145 14 318 338 4434 925 318 Acquisition Module Wiring Diagram ...
Page 520: ...TM 11 6625 3145 14 318 338 4434 926 318 338 Mainframe Wiring Diagram ...
Page 521: ...TM 11 6625 3145 14 318 338 4434 926 338 Acquisition Module Wiring Diagram ...
Page 522: ...TM 11 6625 3145 14 318 338 4434 928 Figure 9 1 318 A01 Input A Board Component Locations ...
Page 526: ...TM 11 6625 3145 14 ...
Page 528: ...TM 11 6625 3145 14 Figure 9 3 318 338 A03 ACQ Control Board Component Locations ...
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Page 542: ...TM 11 6625 3145 14 Figure 9 8 318 338 A10 CRT Board Component Locations ...
Page 544: ...TM 11 6625 3145 14 Figure 9 9 318 338 A11 Inverter Board component Locations ...
Page 546: ...TM 11 6625 3145 14 Figure 9 10 318 338 A12 Regulator Board Component Locations ...
Page 551: ...TM 11 6625 3145 14 Figure 9 12 338 A01 Input A Board Component Locations ...
Page 553: ...TM 11 6625 3145 14 318 338 SERVICE ...
Page 554: ......
Page 555: ...PIN 058584 ...