Servicing; Field Calibration; Set-Up Charts - B+K precision 467 Instruction Manual

SERVICING
* SET-UP CHARTS
WARNING|
1. The following instructions are for use by qualified personnel only. To avoid electric
shock, do not perform servicing other than contained in the operating instructions
unless you are qualified to do so.
2. High voltage up to 600 volts is present when this unit is operating. Line voltage (120 or
240VAC) is present on some components any time the 467 is connected to an ac power
source, even if turned off. Always observe caution when the chassis is removed from
the housing. Contacting exposed high voltage could result in fatal electric shock.
FIELD CALIBRATION
1. Connect suitable AC voltmeter (±3% or better) to pins 1 and 14 of Adapter
No. 3. Connect Adapter to test cord.
2. Set AC voltmeter range switch to 10V.
3. Plug in 467 and set function switch to SET-UP.
4. Set HTR Range switch to 4 — 7 volts.
5. Adjust SET HTR control to read exactly 6.3V on external voltmeter.
6. Adjust R16 (located on printed circuit board) so that HTR volt meter (Red
B&W) indicates exactly 6.3V.
An up-to-date test chart is included with your Model 467. In order to keep your
set-up chart up-to-date, it is recommended that you subscribe to the B&K Chart
mailing service. These mailings will occur in May and November of each year and
will include all the tubes presently listed on your chart plus all new types of CRT's
that have come out since the last mailing.
If you wish to take advantage of this service, remit cash, check, or money order
(no COD's please) to:
Service Department
B & K-Precision Product Group
DYNASCAN CORPORATION
6460 West Cortland Street
Chicago, Illinois 60635
and you will be placed on the subscription list.