Panasonic KX-TCD346UAS / KX-TCD346UAT / KX-TCA132UAS / KX-TCA132UAT / KX-TCA130UAS / KX-TCA130UAT Service Manual ▷ View online
Items
Check
Point
Procedure
Check or
Replace Parts
(L)*
Modulation Check and
Adjustment
-
Followsteps 1 to 3 of (K).
4.Confirm that the B-Field Modulation is -350 ~ -400/+320 ~ +370kHz/div using
data type Fig 31.
data type Fig 31.
5.Adjust the B-Field Modulation if required. (Execute the command "Readmod"
and "wrtmod xx", where xx is the value.)
and "wrtmod xx", where xx is the value.)
IC1, IC3,
R127, C117,
C115, C119,
C115, C119,
C45, R121,
C44, R123,
C44, R123,
C47, C46,
R125, C48,
C49, C50,
C83, R75,
C53, C51,
C83, R75,
C53, C51,
R131, C54,
C55, R129
(M)
Frequency Offset
Confirmation
-
Followsteps 1 to 3 of (K).
4.Confirm that the frequency Offset is < ± 45kHz.
IC1, IC3,
R127, C117,
C115, C119,
C115, C119,
C45, R121,
C44, R123,
C44, R123,
C47, C46,
R125, C48,
C49, C50,
C83, R75,
C53, C51,
C83, R75,
C53, C51,
R131, C54,
C55, R129
(N)
Frequency Drift
Confirmation
-
Followsteps 1 to 3 of (K).
4.Confirm that the frequency Drift is < ± 30kHz/ms.
IC1, IC3,
R127, C117,
C115, C119,
C115, C119,
C45, R121,
C44, R123,
C44, R123,
C47, C46,
R125, C48,
C49, C50,
C83, R75,
C53, C51,
C83, R75,
C53, C51,
R131, C54,
C55, R129
(O)
Sensitivity Receiver
Confirmation
-
Followsteps 1 to 3 of (K).
4.Set DECT tester power to -88dBm.
5.Confirm that the BER is < 1000ppm.
IC1, IC3,
R127, C117,
C115, C119,
C115, C119,
C45, R121,
C44, R123,
C44, R123,
C47, C46,
R125, C48,
C49, C50,
C83, R75,
C53, C51,
C83, R75,
C53, C51,
R131, C54,
C55, R129
(P)
Timing Confirmation
-
Followsteps 1 to 3 of (K).
4.Confirm that the Timing accuracy is < ± 2.0ppm.
IC1, IC3,
R127, C117,
C115, C119,
C115, C119,
C45, R121,
C44, R123,
C44, R123,
C47, C46,
R125, C48,
C49, C50,
C83, R75,
C53, C51,
C83, R75,
C53, C51,
R131, C54,
C55, R129
(Q)*
RSSI Level
Confirmation
-
Followsteps 1 to 3 of (K).
4.Set DECT tester power to -81dBm.
5.Execute the command “readrssi“.
6.Confirm that the returned value is 0×1B ± 8 (hex).
7.Set DECT tester power to -63dBm.
8.Execute the command “readrssi“.
9.Confirm that the returned value is 0×23 ± 8 (hex).
IC1, IC3,
R127, C117,
C115, C119,
C115, C119,
C45, R121,
C44, R123,
C44, R123,
C47, C46,
R125, C48,
C49, C50,
C83, R75,
C53, C51,
C83, R75,
C53, C51,
R131, C54,
C55, R129
37
KX-TCD346UAS / KX-TCD346UAT / KX-TCA132UAS / KX-TCA132UAT / KX-TCA130UAS / KX-TCA130UAT
Items
Check
Point
Procedure
Check or
Replace Parts
(R)
Power RAMP
Confirmation
-
Followsteps 1 to 3 of (K).
4.Confirm that Power RAMP is matching.
IC1, IC3,
R127, C117,
C115, C119,
C115, C119,
C45, R121,
C44, R123,
C44, R123,
C47, C46,
R125, C48,
C49, C50,
C83, R75,
C53, C51,
C83, R75,
C53, C51,
R131, C54,
C55, R129
(S)
Audio Check and
Confirmation
-
1. Link to BASE which is connected to Line Simulator.
2. Set line voltage to 48V and line current to 40mA.
3. Input -45dBm/1KHz to MIC and measure Line output level.
4. Confirm that the level is -9.5dBm ± 2dBm and that the distortion level is < 5%
at TEL Line (600
Ω Load).
5. Input -20dBm/1KHz to Line I/F and measure Receiving level at REV1 and
REV2.
6. Confirm that the level is -20.5dBm ± 2dBm and that the distortion level is < 5%
at Receiver. (vol = 2)
IC1, C37, C68,
C91, R25,
R26, C20,
C12, C14,
C90, C87,
C89, R29,
R37, R38,
R26, C20,
C12, C14,
C90, C87,
C89, R29,
R37, R38,
C10, C17, D4,
D5
(T) SP-Phone Audio Check
and Confirmation
-
1. Link to Base which is connected to Line Simulator.
2. Set line voltage to 48V and line current to 40mA.
3. Set the handset off-hook using SP-Phone key.
4. Input -20dBm/1KHz to Line I/F and measure Receiving level at SP1 and SP2.
5. Confirm that the level is -7dBm ± 2dBm and that the distortion level is < 5%.
(vol = 3)
IC1, IC2, C37,
C68, C91,
R25, R26,
C20, C12,
C14, C90,
C87, C89,
R29, R37,
R38, C10,
C17, C92,
R80, C13,
R35, C75,
R25, R26,
C20, C12,
C14, C90,
C87, C89,
R29, R37,
R38, C10,
C17, C92,
R80, C13,
R35, C75,
C86, C15, D8,
C16, C77,
C38, R36,
C38, R36,
R74, C80
9.2.
Troubleshooting for Speakerphone (Handset)
When the customer’s telephone line corresponds to the following conditions and transmission signal of SP-Phone is interrupted,
performing the next set up to a cordless handset will improve it to some extent.
performing the next set up to a cordless handset will improve it to some extent.
Conditions
1. When customer’s line has less line loss.
ex.) The customer is using optical fiber, ISDN terminal adaptor, or PBX.
In this case, receiving signal is strong and it may affect transmission signal.
2. When the other party is talking from noisy place.
ex.) The other party is using cellular phone. The background noise is very loud.
In this case, the noise from the other party (i.e. surrounding noise) may affect transmission signal.
Setting Method
· Change the address of EEPROM (0×0144) from 0×00 to 0×01.
· Change the address of EEPROM (0×0144) from 0×00 to 0×01.
38
KX-TCD346UAS / KX-TCD346UAT / KX-TCA132UAS / KX-TCA132UAT / KX-TCA130UAS / KX-TCA130UAT
· EEPROM serial JIG
JIG Cable: PQZZ1CD300E*
· PC which runs in DOS mode.
· Batch file CD-ROM for setting: PQZZTCD346UA
· Batch file CD-ROM for setting: PQZZTCD346UA
Note:
*: If
you have the
JIG
Cable
for
TCD500
series
(PQZZ1CD505E),
change
the
following
values
of
resistance. Then you can use it as a JIG Cable for both
TCD300 and TCD500 series. (It is an upper compatible JIG
Cable.)
TCD300 and TCD500 series. (It is an upper compatible JIG
Cable.)
Resistor
Old value (k
Ω) Newvalue (kΩ)
R2
22
3.3
R3
22
3.3
R4
22
4.7
R7
4.7
10
9.3.
The Setting Method of JIG (Handset)
9.3.1.
Preparation
9.3.1.1.
Equipment Required
· DECT tester: Rohde & Schwarz, CMD 60 is recommended.
· Frequency counter: it must be precise to be able to measure 1Hz (precision; ±4ppm).
· Frequency counter: it must be precise to be able to measure 1Hz (precision; ±4ppm).
Hewlett Packard, 53131A is recommended.
· DC power: it must be able to output at least 1A current under 2.4V for Handset.
· Digital multi-meter (DMM): it must be able to measure voltage and current.
· Oscilloscope
· Digital multi-meter (DMM): it must be able to measure voltage and current.
· Oscilloscope
9.3.1.2.
JIG and PC
9.3.2.
PC Setting
9.3.2.1.
Connections
9.3.2.2.
PC Setting
1. Open a window of MS-DOS mode from the start-up menu.
2. Change a directory.
3. Type “SET_COM=1” from the keyboard (when COM port 1 is used for the connection).
4. Type “doskey”.
Note:
See the table belowfor frequently used commands.
Command name
Function
Example
rdeeprom
Read the data of EEPROM
Type “rdeeprom 00 00 FF”, and the data from address “00 00” to “FF” is read out.
readid
Read ID (RFPI)
Type “readid”, and the registered ID is read out.
writeid
Write ID (RFPI)
Type “writeid 00 18 E0 0E 98”, and the ID “0018 E0 0E 98” is written.
setfreq
Adjust Frequency of RFIC
Type “setfreq nn”.
getchk
Read checksum
Type “getchk”.
wreeprom
Write the data of EEPROM
Type “wreeprom 01 23 45”. “01 23” is address and “45” is data to be written.
39
KX-TCD346UAS / KX-TCD346UAT / KX-TCA132UAS / KX-TCA132UAT / KX-TCA130UAS / KX-TCA130UAT
9.4.
Adjustment Standard (Handset)
When connecting the Simulator Equipments for checking, please refer to below.
C125
A201
TP10
TP12
TP16
TP11
R131
C54
C55
R130
R121
R122
R128
R127
C46
C47
R124
R123
R132
C7
C6
C140
C56
Q5
Q9
J3
J2
UTX
URX
J4
C8
C19
C93
C94
C17
C87
C12
C14
C23
C22
C71
R95
R40
R57
R1
C102
C38
C80
C78
C79
SP_TEST1
REV_TEST1
REV_TEST2
SP_TEST2
C76
R36
R35
D8
R80
C75
C92
C16
C15
C86
C95
C30
C115
C114
C120
C116
C121
C44
C117
C45
CLK
C119
C129
D1
JT
A
A
G
R39
R37
R38
C10
R29
C90
C89
C37
C91
R6
R5
R47
R72
D6
R19
C20
R15
R59
F1
J1
L6
C68
D7
R7
C74
C73
L5
L4
R74
R117
Q16
C77
C13
C84
C85
C134
C132
C130 C139
C136
C135
C138
R135
R134
R134
D5
D4
C133
C131
C24 C58
R26
R25
R60
1
48
R61
R63
R64
R46
R43
R21 R20
C39
C137
BA
T
T
GND
VDDE
C57
C1
C53
CN6
C51
C50
C48
C49
C126
A
R125
R129
R126
C83
R75
PbF
IC1
IC10
IC11
IC2
X1
Q1
R82
R81
R9
C21
102
1
65
38
103
128
64
39
R2
R3
C3
L1
Q3
D9
C5
R11
R10
C4
R12
R4
R137
R24
R73
R136
C9
C128
C127
C18
C40
C109
Q2
Q4
Q19
Q17
Q18
PQUP11277Z
Current
Probe
PC
Digital
Volt Meter
Frequency
Counter
ANT
GND
DECT Tester
CMD60
(S) (T)
(K) (L) (M) (N)
(O)(P)(Q)(R)
URX
UTX
GND
GND
GND
TP16
SP+
(SP_TEST2)
SP-
(SP_TEST1)
REV
-
(REV_TEST2)
REV+
(REV_TEST1)
BATT
Power key
TP12
TP11
TP10
TP21
6.3V 47uF
TP23
TP22
TP20
CLK
AF
Generator
DC
6V
DC POWER
2.30-2.60V
BATTERY-
BATTERY+
2.7V/2W
+
-
AF Volt
Meter
Oscilloscope
Oscilloscope
150
Ω
8
Ω
Loop
Simulator
AF
OSC
600
Ω
AF Volt
Meter
Dummy Base
Unit
OSC
(F)
(S) (T)
(D) (E) (G) (H)
(A) (B) (C)
(J)
Note:
(A) - (T) is referred to Check Point (Handset) (P.35)
K
X
-T
C
D
3
46U
A
S
/
/
K
X-
T
T
C
D
346
U
A
T
/
/
K
X-
T
T
C
A
132U
A
S
/
/
K
X-
T
T
C
A
132U
A
T
/
/
K
X-
T
T
C
A
130U
A
S
/
/
K
X-
T
T
C
A
130U
A
T
40
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