ACCURATE ELECTRONICS 104445A Manual - Halaman 4

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ACCURATE ELECTRONICS INC
WWW.ACCURATE.ORG
PO BOX 1654 97075-1654 8687 SW HALL BLVD 97008
internal (component-level) testing or repairs be attempted on the product.
Unauthorized testing or repairs may void the product's warranty. Also, if the
product is part of a registered system, unauthorized repairs will result in
noncompliance with Part 68 of the FCC Rules and Regulations.
TECHNICAL ASSISTANCE
7.02 Contact Accurate Electronics, Inc. 503.641.0118, FAX: 503.646.3903;
Mail: PO Box 1654, Beaverton OR 97075-1654.
RETURN PROCEDURE (FOR REPAIR)
7.03 To return equipment for repair, first contact Accurate Electronics, Inc.
Enclose an explanation of the malfunction, your company's name and
address, the name of a person to contact for further information, and the
purchase order number for the transaction. Accurate Electronics will inspect,
repair, and retest the equipment so that it meets its original performance
specifications and then ship the equipment back to you. If the equipment is
in warranty, no invoice will be issued.
8. MAINTENANCE
8.01 No preventive maintenance is required. General care is recommended.
9. WARRANTY
9.01 All Accurate Electronics Inc. products carry a full FIVE (5) YEAR
warranty on materials and workmanship. See WARRANTY in front of
catalog.
Note: Warranty service does not include removal of permanent customer
markings on the front panels of Accurate Electronics' products, although an
attempt will be made to do so. If a product must be marked defective, we
TABLE 4. Test Guide Checklist.
TEST:
TEST PROCEDURE:
Combiner gain:
Open S1-3 and S1-4. Connect VOM or TMS
(terminated at 600 ohms) to COMB OUT
Multiple port
jack. Inject 1000Hz test tone (0dBm) into
(+10 to -10dBm)
COMB IN 1 jack. Adjust COMB LEVEL 1
potentiometer to maximum and minimum
level. Repeat for COMB IN 2, 3 and 4.
Combiner gain:
Open S1-3 and S1-4. Connect VOM or TMS
(terminated at 600 ohms) to COMB OUT
Common port
jack. Inject 1000Hz test tone (0dBm) into
(0, -16, and
COMB IN 1 jack. Adjust COMB LEVEL 1
potentiometer to 0dBm level.
-25dBm)
Combiner
Short all inputs to combiner and bus
extension in. Measure noise at COMB OUT
Channel
jack.
Noise
Splitter gain:
Open S2-3 and S2-4. Connect VOM or
TMS (terminated at 600ohms) to SPLITTER
Multiple port
OUT 1 jack. Request 1000Hz test tone at
(+10 to -10dBm)
CLR level from distant end. Adjust SPLIT
LEVEL 1 potentiometer to maximum and
minimum levels. Repeat for SPLIT OUT 2,
3 and 4.
Splitter gain:
Open S2-3 and S2-4. Connect VOM or
TMS (terminated at 600 ohms) to SPLIT
(0, -7, and
OUT 1. Request 1000Hz test tone at CLR
-25dBm)
LEVEL from distant end. Adjust SPLIT
LEVEL 1 potentiometer to 0dBm level.
Splitter Channel
Short splitter input. Measure noise at one
Noise
SPLITTER OUT jack.
This document contains proprietary information and is supplied for identification, maintenance, engineering evaluation or inspection purposes only and shall not be duplicated or disclosed without written
permission of: ACCURATE ELECTRONICS INC By accepting this document the recipient agrees to make every effort to prevent unauthorized use of this information.
Practice Section 104445A Rev B
BEAVERTON OR USA 503.641.0118
recommend that it be done on a piece of tape or on a removable stick-on
label.
9.02 If a situation arises that is not covered in the checklist, contact Accurate
Customer Service as follows (telephone number are given below):
Contact Accurate Electronic Customer Service
9.03 If a product is diagnosed a defective, follow the replacement procedure
in paragraph 9.04 when a critical service outage exists (e.g., when a system
of a critical circuit is down and no spares are available). If the situation is not
critical, follow the repair and return procedure in paragraph 9.05.
Replacement
9.04 To obtain a replacement product, notify Accurate Electronics. Be sure
to provide all relevant information, including the 104445A part number that
indicates the issue of the product in question. Upon notification, we shall
ship a replacement product to you. If the product in question is in warranty,
the replacement will be shipped at no charge. Pack the defective product in
the replacement product's carton, sign the packing slip included with the
replacement, and enclose it with the defective product (this is your return
authorization). Affix the preaddressed label provided with the replacement
product to the carton being returned, and ship the product prepaid to Accurate
Electronics.
Repair and Return
9.05 Return the defective product, shipment prepaid, to Accurate Electronics
Inc. :
ACCURATE ELECTRONICS INC.
ATTN: REPAIR AND RETURN
8687 SW HALL BLVD. #100
BEAVERTON, OREGON 97008 USA
NORMAL RESULTS:
Signal is at least -10 dBm at minimum, and at
least +10 dBm at high level.
S1-3 and S1-4 open, level is 0dBm.
S1-3 closed and S1-4 open, level is –16dBm.
S1-3 open and S1-4 closed, level is -25dBm.
Noise level under 20dBrnC at all gain settings.
Signal is at least –10dBm at minimum, and at
least +10dBm at maximum.
S2-3 and s2-4 open, level is 0dBm.
S2-3 closed and S2-4 open, level is –7dBm.
S2-3 open and S2-4 closed, level is -25dBm.
Noise level less than 20dBrnC at all gain
settings.
January 2014
FAX 503.646.3903
IF NORMAL RESULTS ARE NOT MET,
VERIFY:
Check power connection?
Check double termination?
S1 properly set?
Check power connection?
Check double termination?
Inputs to combiner shorted?
Noise test set at proper terminating impedance?
High RF environment affecting test set?
Check power connection?
Check double termination?
S2 properly set?
Check power connection?
Check double termination?
Input to splitter shorted?
Noise test set at proper terminating impedance?
High RF environment affecting test set?
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