Welch Allyn Grason-Stadler GSI 17 Series - Suggested Repair Parts

C.
Adjust R403 for minimum distortion.
Minimum distortion
should be less than 2% (THD).
L d.
Check distortion at opposite earphone jack.
NOTE :
If distortion at output cannot be adjusted to
less
than
2%, remove 60 ohm load and recheck.
If distortion reduces, power
amplifiers may be at fault, if not,
attenuator may be the cause.
8.13 SUGGESTED REPAIR PARTS
1717-4700ROT Audiometer Board Rotating Stock
1717-9610 Parts Kit
Note:
The following parts are included in this kit.
Qty
GSI Part Number Description
3
7874-0173
1
7874-0172
1
7874-0171
1
7874-0175
1 7874-0170
1
5437-1275
1 1717-3810
2 4214-0155
1 4204-0147
1
1717-9610-AS
Slide Switch (Power, L/R, Tone Type)
HL Switch
Frequency Switch
Cal/Norm Switch
4 Position Dip Switch
LCD
LCD Fixture
Phone Jacks
Earphone Cord
1717 LCD Installation
Procedure/Parts Kit
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