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49
12.2. How to Replace the Handset LCD
Note:
The illustrations are simplified in this page.
They may differ from the actual product.
They may differ from the actual product.
Peel off the FFC (Flexible Flat Cable) from
the LCD, in the direction of the arrow. Take
care to ensure that the foil on the P.C. board
is not damaged.
the LCD, in the direction of the arrow. Take
care to ensure that the foil on the P.C. board
is not damaged.
Fit the heatseal of a new LCD.
Rubber of Soldering Iron
(Part No. PQZZ430PRB)
(Part No. PQZZ430PRB)
Tip of Soldering Iron
(Part No. PQZZ430PIR)
Heatweld with the tip of the soldering
iron about 5 to 8 seconds
(in case of 60W soldering iron).
iron about 5 to 8 seconds
(in case of 60W soldering iron).
New LCD
0.2 mm
0.2 mm
P. C. board
If interval tolerance between center lines
is less than 0.2 mm, it is o.k.
is less than 0.2 mm, it is o.k.
Horizontal Interval
Tolerance
Tolerance
Vertical Interval
Tolerance
Tolerance
OK
NG
NG
NG
(Horizontal interval tolerance is
more than 0.2 mm.)
more than 0.2 mm.)
(Vertical interval tolerance is
more than 0.2 mm.)
more than 0.2 mm.)
(Inclined)
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13 Measurements and Adjustments
This chapter explains the measuring equipment, the JIG connection, and the PC setting method necessary for the measurement in
Troubleshooting Guide (P.29)
Troubleshooting Guide (P.29)
13.1. Equipment Required
• Digital multi-meter (DMM): it must be able to measure voltage and current.
• Oscilloscope.
• Frequency counter: It must be precise enough to measure intervals of 1 Hz (precision; ±4 ppm)
• Oscilloscope.
• Frequency counter: It must be precise enough to measure intervals of 1 Hz (precision; ±4 ppm)
Hewlett Packard, 53131A is recommended.
• DECT tester: Rohde & Schwarz, CMD 60 is recommended.
This equipment may be useful in order to precisely adjust like a mass production.
13.2. The Setting Method of JIG (Base Unit)
This section explains the PC setting to use command required in Check Point (Base Unit) (P.40).
<Preparation>
• Serial JIG cable: PQZZ1CD300E*
• PC which runs in DOS mode
• Batch file CD-ROM for setting: PNZZTG2511UA
• PC which runs in DOS mode
• Batch file CD-ROM for setting: PNZZTG2511UA
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.)
it as a JIG Cable for both TCD300 and TCD500 series. (It is an upper compatible JIG Cable.)
13.2.1.
Connections
Connect the AC adaptor to DC-JACK (base unit).
Connect the JIG Cable GND (black) to GND.
Connect the JIG Cable RX (red) to URX and TX (yellow) to UTX.
Note:
*: COM port names may vary depending on what your PC calls it.
Resistor
Old value (k
) New value (k)
R2
22
3.3
R3
22
3.3
R4
22
4.7
R7
4.7
10
Base unit P. C. board
UTX (yellow)
AC adaptor
1
2
3
3
GND (black)
URX (red)
GND
UTX
URX
To Serial Port
(COM port 1*)
(COM port 1*)
PC
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13.2.2.
How to install Batch file into P.C.
Note:
• “*****” varies depending on the country or models.
13.2.3.
Commands
See the table below for 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.
“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.
98” is written.
hookoff
Off-hook mode on Base
Type “hookoff”.
hookon
On-hook mode on Base
Type “hookon”.
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.
is data to be written.
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13.3. Adjustment Standard (Base Unit)
When connecting the simulator equipment for checking, please refer to below.
13.3.1.
Bottom View
Note:
(A) - (O) is referred to Check Point (Base Unit) (P.40)
VREF
C521
C120
D133
RA505
RTCK
R331
D132
C124
Q111
C601
C123
TMS
TCK
VDDC
+3.0V
R601
RA151
TDO
VCCA
STM/CKM/P15
D113
R332
C331
R114
TDI
RSTN
C611
IC601
C185
R702
IC611
Q702
Q701
R373
R374
R701
D361
C361
D153
R111
R112
C111
C114
C121
C122
R121
R122
C112
R115
R116
R117
R118
C115
C116
R113
C110
C113
Q302
R306
VBAT
D301
+6.5V
URX
UTX
GND
R101
R102
R504 R503
R506
DCP
CHARGE-
F301
CHARGE+
DCM
L1R
L1T
LINE_DC
HAK_CL1
GAP1
Q140
R148 R149
ANT1
C103
C104
C302
C312
DC_IN
TP10
PNLB1214Z＊
B
CTS60
CKM(G)
VBAT(A)
+3.0V(B)
DECT Tester
(H)(I)(J)(K)
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