Adjustment Procedures5–2 WFM 90 and WFM 91 Service Manual
Equipment Required
Table 5–2 lists the required equipment and accessory items to perform theadjustment procedures. Minimum equipment specifications are followed by anexample of equipment that meet these specifications.Table 5–2: Equipment required for performance verification
Equipment Description Minimum Requirements Equipment Example
Television test signal generator 75% color bar test signal for the television
standard of the monitor to be tested NTSC: Tektronix TSG100;
PAL: Tektronix TSG111
Leveled sine wave generator Output Level Range: –11.55 dBm (200 mV) to
0.43 dBm (800 mV);
Frequency: 50 kHz to 10 MHz
Tektronix SG5031 Leveled Sine Wave Generator
Function generator Range: 0.1 to 5 Vpp when loaded by 75 W,
10 Vpp when unloaded;
Frequency: 50 kHz to 10 MHz.
Tektronix FG5031 Function Generator
Audio generator Amplitude Range: –10 dBu to 8 dBu;
Frequency: 1 kHz to 50 kHz Tektronix ASG100 Audio Signal Generator
Voltmeter Range: 0 VDC to 100 VDC;
Accuracy: 0.1% Tektronix DM504A1 Digital Multimeter
Frequency counter Range: 10 Hz to 10 MHz;
Accuracy: 0.001% Tektronix DC503A1 Universal Counter
Video amplitude calibrator
(VAC) Signal: Adjustable square wave 0.0 mVpp to
999.9 mVpp; Resolution: 0.1 mV; Accuracy:
0.05%; Frequency: Approximately 270 Hz
Tektronix part number 067-0916-001
Peak-to-peak detector Input Signal Range: 0.25 Vpp to 1.0 Vpp;
Flatness: 0.2% 50 kHz to 10 MHz;
Input Impedance: 75 W
Tektronix part number 015-0408-00 (includes
peak-to-peak detector head, Tektronix part
number 015-0413-00)1
75 W terminator One required; feed-through type Tektronix part number 011-0103-02
75 Wcoaxial cable Three cables required, male-to-male BNC
connectors Tektronix part number 012-0159-00 (42-inch)
Tektronix part number 012-1339-00 (24-inch)
50 Wcoaxial cable 1% precision, male-to-male BNC connectors Tektronix part number 012-0482-00 (36-inch)
Dual input coupler Matched BNC cable-T for making phase
comparisons between two inputs; Matched
length of the two arms within 0.1 inch
Tektronix part number 067-0525-02
Audio cable XLR female to XLR male Switchcraft part number SC3XXJ
50 W-to-75 W minimum loss
attenuator Impedance: 50 W-to-75 W; Tolerance: 0.5 dB;
Frequency: 100 MHz Tektronix part number 011-0057-00
BNC female to BNC female
connector Tektronix part number 103-0028-00
BNC female to dual banana
adapter Tektronix part number 103-0090-00
1Requires a Tektronix TM500-Series or TM 5000-Series Power Module Mainframe.