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Items
Adjustment
(R) Audio Check
(Curl Cord
Handset)
Point
1. Input -45dBm/1kHz to MIC of Curl Cord Handset.
-
Measure the Level at Line I/F and distortion level.
2. Confirm that the level is -15dBm ± 5dB and confirm that the distortion level is < 5%
at TEL Line (600
3. Input -20dBm/1kHz to Line I/F.
Measure the level at Receiver of Carl Cord Handset and distortion level
(*Receive volume set to middle).
4. Confirm that the level is -24dBm ± 5dB and confirm that the distortion level is < 5%
at Receiver (Volume Middle, 150
Procedure
Road).
Road).
96
Check or
Replace
Parts
IC2, CN1,
SA1,
L6, L7, D3,
Q4, Q5, R23,
R25, R26,
R28
C291, R282,
C287, C289,
IC15, R283,
R284, R285,
R286, R287,
R288, R289,
R290, R291,
R292, R231,
R279, R266,
C288, C290,
C267, C275,
C232, C233,
C292, C295,
C296, C301,
C302, C304,
C305, C303,
C300, C297,
C298, C299,
C314, C315,
C316
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