Panasonic KX-TC1881B, Service Manual

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(*) Details of confirmation items are following in “ Check Table for RF Block ”.
8.6.4. Check Table for RF Block
No Item BS (Base unit) (*1) HS (Handset) (*1)
1a. Link
confirmation
[NORMAL
POWER]
Procedure
1. Put “HS JIG” on BS.
2. Set MODE to [NORMAL POWER] position of “HS JIG“
.
3. Press [TALK] key of “HS JIG” to establish link.
1. Put HS on “BS JIG”.
2. Set MODE to [NORMAL POWER] position
JIG“.
3. Press [TALK] key of “HS” to establish link.
1b. Link
confirmation
[TEST
POWER]
Procedure
1. Change MODE to [TEST POWER] position of “HS
JIG”.
2. Press [TALK] key of “HS JIG” to establish link about
30cm away from “BS”.
1. Change MODE to [TEST POWER] position
JIG”.
2. Press [TALK] key of “HS“ to establish link
30cm away from “BS JIG”.
2
IC101
working
confirmation
Procedure
1. Set Test-mode [Continuos Send Low Power].(*3)
2. Confirm X101 oscillate(24MHz). (*4)
1. Set Test-mode [Continuos Send Low Power].(
2. Confirm X101 oscillate(24MHz) (*4).
Check
point
1. Check X101 oscillator.
2. Check DSP interface(IC101 IC501/BS) (*5).
1. Check X101 oscillator.
2. Check DSP interface(IC101 IC201
3 TX frequency
Adjustment
Procedure
1. Set Test-mode [Continuos Send Low Power].(*3)
2. Confirm TX-carrier frequency (1CH = 906MHz).
1. Set Test-mode [Continuos Send Low Power].(
2. Confirm TX-carrier frequency (1CH = 906MHz).
Check
point
1. Adjust frequency by VC101.(*3)
2. Check X101 oscillator Circuit.
1. Adjust frequency by VC101.(*3)
2. Check X101 oscillator Circuit.
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