A
Addendum A – Service Manual
Agilent Model E4356A Telecommunications DC Power Supply
p/n 5964-8170
Applies to units with serial numbers US39290101 and up.
Foreword
This addendum contains information for troubleshooting and repairing the Agilent E4356A
Telecommunications DC Power Supply. The standard service manual for the Agilent Series 667xA DC
Power Supplies (p/n 5959-2583) used together with this service addendum is shipped with the Agilent
E4356A when ordered with Option 0BN.
NOTE: This addendum is to be used along with the standard service manual for the Agilent
Series 667xA DC Power Supplies. When troubleshooting, follow the procedures outlined
for Agilent Model 6674A. This addendum documents only the differences between the
standard troubleshooting procedures for Agilent Model 6674A and the Agilent E4356A
Telecommunications DC Power Supply.
Areas of Difference
♦ Voltage and Current Values (Table 2-2).
♦ Performance Test Record (Table 2-19).
♦ Initialization Program listing (Figure 3-17).
♦ Parts list (Tables 5-3, 5-4, 5-6, 5-7, 5-9, 5-10 and 5-11).
Chapter 2 Differences
Voltage and Current Values – page 2-4
Table 2-2. Programming Voltage and Current Values
Agilent Model Full-Scale
Voltage
Agilent E4356A 80 81.9 30 30.71 96
Max. Prog.
Voltage
Full-Scale
Current
Max. Prog.
Current
Max. Prog.
OverVoltage
1
Verification Test Record – page 2-19
Table 2-12. Verification Test Record for Agilent Model E4356A
Model: Agilent E4356A Report No.____________Date_____________
Test Description Minimum
Specification
Recorded
Results*
Maximum
Specification
Measurement
Uncertainty
Constant Voltage Tests
Voltage Programming and
Readback
Low Voltage (0 V) V
out
Front Panel Display Readback
High Voltage (80 V) V
out
Front Panel Display Readback
Load Effect
Source Effect
−80 mV
V
−120 mV
out
79.888 V _____V 80.112 V 0.8 mV
V
−160 mV
out
−4.6 mV
V
out
−4.6 mV
V
out
_____mV +80 mV 2.2 µV
_____mV V
_____mV V
_____mV V
_____mV V
+120 mV 2.2 µV
out
+160 mV 0.8 mV
out
+4.6 mV 40 µV
out
+4.6 mV 40 µV
out
PARD (Ripple and Noise)
peak-to-peak 0 _____mV 16 mV 904 µV
rms 0 _____mV 1.9 mV 150 µV
Transient Response Time
0 _____mV 100 mV 12 mV
(@900 µs)
Constant Current Tests
Current Programming and
Readback
Low Current (0 A) I
out
Front Panel Display Readback
High Current (30 A) I
out
Front Panel Display Readback
Load Effect
Source Effect
−25 mA
I
−30 mA
out
29.945 A _____A 30.055 A 5.7 mA
I
−65 mA
out
−3.75 mA
I
out
−3.75 mA
I
out
_____mA +25 mA 153 µA
_____mA I
_____mA I
_____mA I
_____mA I
+30 mA 153 µA
out
+65 mA 5.7 mA
out
+3.75 mA 21 µA
out
+3.75 mA 21 µA
out
PARD (Ripple and Noise)
rms 0 _____mA 25 mA 5 mA
Current Sink (4A) Display
−34 mA
I
out
_____mA I
+34 mA 0.6 mA
out
Readback
* Enter your test results in this column.
2
Chapter 3 Differences
Initialization Program Listing - page 3-38
In Figure 3-18, change line 160 to read:
160 DATA 169,170,171,172,174,176,180
Change line 230 to read:
230 DATA 1,1,1,2,1,4,4
Add the following lines to Figure 3-18 after line 590:
591 Eprom_data_4356: ! ! EEPROM data for E4356A
592 DATA 458.923,70,81.9,0,82,0,80,70,26.6175,0
593 DATA 99,1,50,0,96,0,82,255,20,10
594 DATA 4356,55,500,90,500,1765,5,255,0,0
595 DATA 1296,4356,0,20,180,20,174,175,33,98
596 DATA 115,30,20,1,58,71.6625,30.7125
597 !
Add the following lines after line 980:
981 CASE "E4356A"
982 RESTORE Eprom_data_4356
Change line 1030 to read:
1030 PRINT "6671A, 6672A, 6673A, 6674A, 6675A and E4356A"
Chapter 5 Differences
Table 5-3. Main Chassis
Ref. Des. Agilent Part No. Description
ELECTRICAL PARTS
A1 E4356-61023 Front panel pc assembly, tested
A2 5064-0104 GPIB pc assembly, tested
A3 E4356-61021 FET pc assembly, tested
A5 E4356-61020 Control pc assembly, tested
A6 E4356-61022 Output pc assembly, tested
A7 E4356-61026 Snubber pc assembly, tested (mounted on heatsink)
D900 1906-0451 Diode, rectifier UTF12780 (mounted on heatsink)
L900 06674-80005 1st stage output choke
T900 9100-4976 Transformer, power output
C999 E4356-60026 Capacitor assembly 220 pF, 1.6kV (mounted on D900)
MECHANICAL PARTS
E4356A E4356-80001 Nameplate
3
Table 5-4. A1 Front Panel Board
Ref. Des. Agilent Part No. Description
U4 5080-2278 Programmed ROM (installed in socket)
Table 5-6. A2 GPIB Board
Ref. Des. Agilent Part No. Description
U106 5080-2243 Programmed ROM (installed in socket)
Table 5-7. A3 FET Board
Ref. Des. Agilent Part No. Description
ELECTRICAL PARTS
C228 0150-8856 Capacitor 6800 pF 1%
R247 0757-0460 Resistor 61.9k
R250 0757-0458 Resistor 51.1k
R253 0757-0446 Resistor 15.0k
R256 0698-3432 Resistor 26.1 ohms
R257 0698-3433 Resistor 28.7 ohms
Table 5-9. A5 Control Board
Ref. Des. Agilent Part No. Description
ELECTRICAL PARTS
C683 0160-5468 Capacitor 0.47 µF, 50 V
C716 0160-4835 Capacitor 0.1 µF
R504 0698-6392 Resistor 22k, 0.1 %
R651, 652 0757-0476 Resistor 301k
R665, 6664 0757-0199 Resistor 21.5k
R690 0698-8827 Resistor 1M
R691 0757-0465 Resistor 100k
R718 0698-8695 Resistor 36k, 0.1 %
R730, 731 0699-0934 Resistor 36.65k, 0.1 %
R768 8159-0005 Resistor 0 ohms
R809 0699-0769 Resistor 17.5k, 0.1 %
Table 5-10. A6 Output Board
Ref. Des. Agilent Part No. Description
ELECTRICAL PARTS
C901, 903, 905 0180-4705 Capacitor 6000 µF, 100V
Q903 1855-1003 Transistor IRFIP-240
R909, 910 0698-3644 Resistor 5.1k, 2W
R934 0698-0082 Resistor 464 ohms
Table 5-11. A7 Snubber Board
Ref. Des. Agilent Part No. Description
ELECTRICAL PARTS
C990, 991 0160-5466 Capacitor 1000 pF, 100V
R990- 995 0698-3634 Resistor 470 ohms
4
Loading...