Panasonic KX-TG2226B Service Manual page 43

No Item
1a. Link Procedure77
confirmation
[NORMAL
POWER]
1b. Link Procedure
confirmation
[TEST
POWER]
for
confirmation
the sensitivity
of
RF Block
2 IC801 working Procedure
confirmation
Check point
3 TX Power Procedure
confirmation
Check point
4 Receiver Procedure
confirmation
Check point
(1*) BS : Base unit which is checked.
HS : Handset unit which is checked.
BS (working) : Base unit which is working.
HS (working) : Handset unit which is working.
(*2)<Spectrum analyzer setting>
SPAN: 10MHz
VBW, RBW: 1MHz
SWEEP: 1sec.
(*3)See TEST MODE ( ).
(*4)See RF-DSP interface signal wave form
BS (Base unit) (*1)
1. Put "HS (working)" on BS.
2. Set MODE to [NORMAL POWER] of "HS
(working)".
3. Press [TALK] key of "HS (working)" to
establish link.
1. Change MODE to [TEST POWER] of "HS
(working)".
2. Press [TALK] key of "HS (working)" to
establish link.
3. Confirm the suspicious BS links to HS
(working) with approximately the same distance
from BS (working).
1. Set Test-mode Just entering to test mode.(*3)
2. Confirm oscillate signal of RF UNIT (8.192 MHz
at OSC). (*5)
1. Check Xtal oscillator at Q260 - C of the base
unit.
2. Check DSP interface(IC801
1. Put RF wire to ANT and ANT_GND (See
Unit Reference Drawing).
Connect this wire to the Spectrum Analyzer.
2. Set Test-mode. (*7)
3. Confirm TX power level within +11±5dBm (*2)
1. Check L801 ~ L805, D801, D802, R805, R806,
C804, C805, C807, FL801 and soldering.
2. Check Antenna in BS.
1. Put "HS (working)" on BS.
2. Set MODE to [NORMAL POWER] of "HS
(working)".
3. Press [TALK] key of "HS (working)" to
establish link.
4. Change MODE to [TEST POWER] of "HS
(working)".
5. Press [TALK] key of "HS (working)" to
establish link. Confirm the suspicious BS links to
HS (working) with approximately the same
distance from BS (working).
1. Check C115, C114, L111, C118 soldering.
2. Check Antenna in BS.
().
43
HS (Handset) (*1)
1. Put HS on "BS (working)".
2. Set MODE to [NORMAL POWER] of "BS
(working)".
3. Press [TALK] key of "HS" to establish link.
1. Change MODE to [TEST POWER] of "BS
(working)".
2. Press [TALK] key of "HS" to establish link.
3. Confirm the suspicious HS links to BS
(working) with approximately the same distance
from HS (working).
1. Set Test-mode Just entering to test mode.(
2. Confirm oscillate signal of RF UNIT (8.192
at OSC). (*6)
1. Check Xtal oscillator at Q204 - C of the handset
2. Check DSP interface(IC801
DSP/BS) (*4).
Base 1. Put RF wire to ANT and ANT_GND (See
Handset Reference
Connect this wire to the Spectrum Analyzer.
2. Set Test-mode. (*8)
3. Confirm TX power level within +11±5dBm
1. Check L801 ~ L805, D801, D802, R805, R806,
C804, C805, C807, FL801 and soldering.
2. Check Antenna in HS.
1. Put HS on "BS (working)".
2. Set MODE to [NORMAL POWER] of "BS
(working)".
3. Press [TALK] key of "HS" to establish link.
4. Change MODE to [TEST POWER] of "BS
(working)".
5. Press [TALK] key of "HS" to establish link.
Confirm the suspicious HS links to BS (working)
with approximately the same distance from
(working).
1. Check C115, C114, L111, C118 soldering.
2. Check Antenna in HS.
DSP/
Drawing).