Wurlitzer 700, Руководство по обслуживанию

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IMPORTANT: All replacement reeds are tuned flat intentionally.
for it is simple to file or scrdpe a little lead off the tips to
brirLg them into proper- tune after installing them on the bar
o
(Sea
"Adjusting and Checking Reeds" en Page 12 of the 11.odel 112 section
for tuning instructionsc)
CLEANING KEYS
See Page 12 in l-'10del 112 Service Manualo
AMPLIFIER
The amplifier is shown in Figs
u
700�E, 700-P, and on the schematic
wiring diagram., Figo 7QC ....
Q
f
which also shows the value of component
part s
o
Voltages dre measured on a vac�-� tube voltmeter (VTVM), and
are indicated on the p:rint
o
The pi�E,c vclume control and line switch
is one unit and it is located in the left keyblocko (Note: Figo 700-N
is a schematic drawing of control panelo) All tubes should be checked
before working on the amplifiero
Any conpetent radio service man should be able to check the anq,11-
fier with the aid of the schematic drawing, {Figo 700-0G)
EARPHONES
The phone jack is located in the upper left c�rner of the lower
front panelo The speaker is cut out when the earphones are plugged ino
Any high or low impedance earphones will work satisfactorilya A second
set of earphones may be plugged into the jack marked ,,speaker" if desiT�do
See Figo 700-Eo The regular volume control in the left keyblock controls
the volume for both of these jackso
EXTERNAL SPEAKER
Any external low impedafice speaker may be plugged into the jack
marked "speaker" on the back of the caseo (See Figo 700-Eo) Both the
speaker in the unit and the external speaker will play when the
external speaker is plugged into the "speaker" jacko If the external
speaker is plugged into the phone jack, it cuts out the speaker in the
pianoe In either case the regular piano volume knob controls the volume
of the speakerso
EXTERNAL AMPLIFICATION
The amplifier in the Model 700 Electronic Piano may be used as a
pre-amplifier to drive a higher powered amplifier by plugging into
either the phone jack in the left keyblock, (which will cut out the regu­
lar piano speaker,) or into the external speaker jack in the back of the
case
1
which permits the piano speaker to operate alsoo
700-20
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