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www agilent corn
Agilent Technologies, Inc
24001 E Mission
Liberty Lake, WA 99019
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..':.+:.. Agilent Technologies
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. ' Innovating the HPWay
June 8,2000
Dear Customer,
As of November 1, 1999, four of Hewlett-Packard's businesses, test and measurement,
semiconductor products, health care solutions, and chemical analysis became a new company,
Agilent Technologies. Now, many of your Hewlett-Packard products and services are in the care of
Agilent Technologies.
At Agilent Techn
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HP 8904A MULTIFUNCTION SYNTHESIZER (Including Options 001, 002, 003, and 004) Service Manual SERIAL NUMBERS This manual applies directly to instruments with serial numbers prefixed SEW PREFIXES 2712A to 2948A and all MAJOR changes that apply to your instrument. rev.OlJUL91 For additional important information about serial numbers, refer to "INSTRUMENTS COVERED BY THIS MANUAL" in Section 1. Fourth Edition This material may be reproduced by or for the U.S. Government pursuant to the
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1 Regulatory Information (Updated March 1999) 1
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Regulatory Information (Updated March 1999) Safety Considerations GENERAL This product and related documentation must be reviewed for familiarization with safety markings and instructions before operation. This product has been designed and tested in accordance with IEC Publication 1010, "Safety Requirements for Electronic Measuring Apparatus," and has been supplied in a safe condition. This instruction documentation contains information and warnings which must be followed by the user to
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Regulatory Information (Updated March 1999) Safety Considerations for this Instrument ~ WARNING This product is a Safety Class I instrument (provided with a protective earthing ground incorporated in the power cord). The mains plug shall only be inserted in a socket outlet provided with a protective earth contact. Any interruption of the protective conductor inside or outside of the product is likely to make the product dangerous. Intentional interruption is prohibited. Whenever it is l
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Regulatory Information (Updated March 1999) To prevent electrical shock, disconnect instrument from mains (line) before cleaning. Use a dry cloth or one slightly dampened with water to clean the external case parts. Do not attempt to clean internally. Ventilation Requirements: When installing the product in a cabinet, the convection into and out of the product must not be restricted. The ambient temperature (outside the cabinet) must be less than the maximum operating temperature of the p
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Model 8904A Contents CONTENTS Section 6 . Replaceable Parts Introduction to This Section ............................................ 6.1 Reference Designations and Abbreviations Used in This Manual ........................ 6.1 Replaceable Parts List ................................................ 6.1 Ordering Parts ................................................... 6.1 Replaceable Parts List Updating (Manual Updates) ............................. 6.2 Mechanical and Chassis Part Locati
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Contents Model 8904A Section 8 . Service (cont’d) How to Restore the Serial Number in a Replacement A2 Digital Assembly ................ 8-43 How to Restore Options 001 and 003 in a Replacement A2 Digital Assembly .............. 8-46 How to Replace the Memory Backup Battery ............................... 8-48.1 Service Sheets 1 through 4 (schematics) ................................... 8-50 reu.200CT88
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Model 8904A Replaceable Parts Section 6 REPLACEABLE PARTS 6-1. INTRODUCTION TO THIS SECTION This section contains information for ordering parts. Table 6- 1 lists reference designations, and Table 6-2 lists abbreviations that are used in the Replaceable Parts List. Table 6-3 lists all replaceable parts in the instrument. Table 6-4 contains the names and addresses that correspond to the manufacturer’s code numbers listed in Table 6-3. Also included in this section are drawings to aid in i
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Replaceable Parts Model 8904A How to Order To order a part in the Replaceable Parts List, call or write the nearest Hewlett-Packard Sales Office. Have the following information ready to speed the ordering process: 1. The Hewlett-Packard part number with the check digit. (The check digit will ensure accurate and timely processing of your order.) 2. The quantity required. 3. An approved purchase order number. (Sometimes required.) NOTE Within the USA, it is better to order directly from t
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Model 8904A Replaceable Parts nable 6-1. Reference Designations REFERENCE DESIGNATIONS A ........ assembly E ............ miscellaneous P ....... electrical connector U ......... integrated circuit; AT . ..... attenuator; isolator; electrical part (movable portion); microcircuit termination F .................... fuse V ............. electron tube Plug B .. ............. fan: motor FL ................... filter Q .......... transistor; SCR; VR ........ voltage regulator; BT . ...........
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Replaceable Parts Model 8904A Table 6-2. Abbreviations (2 of 2) TD .............. time delay OD ........ outside diameter MOD .... modulator TERM ............. terminal OH .............. oval head MOM ........... momentary TFT ...... thin-film transistor OP AMPL ....... operational ................ amplifier TGL toggle THD ................ thread ......... option RECT .............. rectifier THRU ............. through ....... oscillator .... reference TI ................. titan
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ReplaceabIe Parts Model 8904A Table 63'. Replaceable Parts Reference HPPart C Qty. llfr- Mtr. Part Number Description Number D Code Designation A1 2 71ZA to 291 7A SEE SECTION 7 KXI FRONT PANEL RETRoFlT WT Alt 2025% and abwo 08904-60201 4 1 KEYBOARD ASSEMBLY 28480 08804-60201 AI NOT SEPARATELY REPLACEABLE w1 A2 2712A to 2942A 0890480102 4 1 DIGITAL ASSEMBLY (NW 28480 08904-60102 A2 08904-69102 2 1 DIGITAL ASSEMBLY (RESTORED) 28480 089066Q102 A2 2048A and ah 08904-60202 5
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Model 8904A Replaceable Parts fible 6-3. Replaceable Parts Reference HPPart C Q~. Mfr- Mfr. Part Number Description Code Designation Number D A3 2712A to 2942A 28480 08904-60103 A3 08904-60103 5 1 OUTPUT ASSEMBLY (NEW) 28480 08904-69103 A3 08904-69103 3 1 OUTPUT ASSEMBLY (RESTORED) 2948A and abow 28480 08904-60203 0890440203 6 1 OUTPUT ASSEMBLY (NEW) A3 28480 08904-69203 08904-69203 4 1 OUTPUT ASSEMBLY (RESTORED) A3 NOT ASSIGNED A3C1 CAPACITOR-FXD 6.8UF+-10% 35VDC TA 56289
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Model 8904A Replaceable Parts Table 6-3. Replaceable Parts Reference HP Part C Description Mfr* Mfr. Part Number D Designation Number Code NOT ASSIGNED A3C83-89 A3C90 01604835 7 CAPACITOR-FXD .1UF +-lo% 50VDC CER 28480 0160-4835 A3C93 01604B35 7 CAPACITOR-FXD .1UF +-1O% 5OVDC CER 28480 0160-4835 NOT ASSIGNED A3c94-200 A3C201 01 604832 CAPACITOR-FXD .OlUF +-lo% lWVDC CER 28480 01 60-4832 A3c202 01 604835 CAPACITOR-FXD .1 UF +-1O% 5OVDC CER 28480 01604835 Ax203 01 60-4832 CAPACIT
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Replaceable Parts Model 8904A Table 6-3. Replaceable Parts Reference HP Part C Mfr. Description QW. Mfr. Part Number D Designation Number Code A3C403 7 CAPACITOR-FXD .1UF +-lo% 5OVDC CER 01 60-4835 28480 01 60-4835 A3C404 01 60-4835 7 CAPACITOR-FXD .1UF +-lo% 5OVDC CER 28480 0160-4835 4 A3C405 01 60-4832 CAPACITOR-FXD .OlUF +-lo% 100VDC CER 28480 01 60-4832 A3C406 01 60-4832 4 CAPACITOR-FXD .OlUF +-lo% lOOVDC CER 28480 0160-4832 4 A3C407 01 60-4832 CAPACITOR-FXD .OlUF +-lo% lOOVDC
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Model 8904A Replaceable Parts %Me 6-3. Replaceable Parts Reference HP Part C Qty. Description Mfr* Mfr. Part Number Designation Number D Code A3CRlO-16 NOT ASSIGNED A3CR17 1901 -0050 DIODE-SWITCHING 8OV 2WMA 2NS 00-35 9N171 1N4150 MCRl8 1901 -0050 DIODE-SWITCHING 8OV 200MA 2NS DO-35 9N171 1N4150 A3CRl9-25 NOT ASSIGNED A3CR26 1901 -0028 DIODE-PWR RECT 400V 750MA DO-29 28480 1901-0028 A3CR27 1901 -0028 DIODE-PWR RECT 400V 750MA DO-29 28480 1901-0028 A3CR28-201 NOT ASSIGNED A3CR2M 1901
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Replaceable Parts Model 8904A Table 6-3. Replaceable Parts Reference HP Part C Description Mfr* Mfr. Part Number QW Designation Number D Code A3CR429 19010050 3 DIODE-SWITCHING 8OV 200MA 2NS DO-35 9N171 1N4150 A3CR430 1901 -0050 3 DIODE-SWITCHING 80V 200MA 2NS DO45 9N171 1N4150 A31 7 12518601 1 CONN-POST TYPE ,100-PIN-SPCG WONT 28480 12518601 A32 NOT ASSIGNED A33 1251-4670 2 3 CONNECTOR SPIN M POST TYPE 28480 12514670 12580141 8 3 JUMPER-REMOVABLE FOR 0.025 IN sa PINS 28480 12580141
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Model 8904A Replaceable Parts Table 63. Replaceable Parts Reference HP Part C Mfr. Description Mtr. Part Number QW. Number D Code Designation MMP8 03404834 INSUIATORXSFI POLW 28480 03406834 A3MP7 03404834 INSUIATORXSlR POLYI 28480 03406834 A3MP8 03404834 INSUIATORXSFI POLW 28480 03404834 A301 18544477 1 TRANSISTOR NPN zttza~ SI TOKI PD- mow 04713 2N2222A m07A A3Q2 18530281 1 TRANSISTOR PNP 2W907A SI TO18 PD-400MW 04713 -13 NOT AsSloNED A3014 1854-0809 1 TRANSISTOR NPN 2Ft23WA SI T
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Replaceable Parts Model 8904A Table 6-3. Replaceable Parts Reference HP Part Description Mfr. Mfr. Part Number Designation Number Code NOT ASSIGNED A3R6-8 A3R9 0698-7205 05 RESISTOR 51.1 1% .05W F TC=0+-100 24546 C~-I/~TO-~IRI-F A3R10 0698-7205 0 RESISTOR 51.1 1% .05W F TC=O+-100 24546 C3-1/8-TO-51Rl-F NOT ASSIGNED A3Rll-39 A3R40 0698-6782 65 RESISTOR 250 .1% .125W F TC=0+-25 28480 0698-6782 A3R41 0698-6782 6 RESISTOR 250 .1% .125W F TC=0+-25 28480 0698-6782 A31342 0698-8819 41 RE
