KX-TCA355RU - Panasonic PBX Service Manual (repair manual). Page 41

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41
KX-TCA355RU
11.2.3. Adjustment (Charger Unit)
Note:
After the measuring, sock up the solder of TP.
11.2.4. Adjustment Standard (Charger Unit)
When connecting the Simulator Equipments for checking, please refer to below.
11.2.4.1. Flow Solder Side View
11.3. RF Specification (Handset)
**: Refer to Adjustment (Handset) (P.36)
Items
Adjustment 
Point
Procedure
Check or 
Replace Parts
(A) Charging Check
-
1. Connect Charge Contact 12
Ω/2W register between charge+ and charge-.
2. Measure and confirm voltage across the register is 2.7V±0.2V.
Item
Value
Refer to -. **
Remarks
TX Power
20 dBm~25 dBm
Adjustment (Handset) (I)
Modulation
360 kHz/div~380 kHz/div
Adjustment (Handset) (J)
Frequency Offset
-45 kHz~+45 kHz
Adjustment (Handset) (K)
Frequency Drift 
< ± 30 kHz / ms
Adjustment (Handset) (L)
RX Sensitivity
< 1000 ppm
Adjustment (Handset) (M)
Timing Accuracy
< ± 0.5 ppm 
Adjustment (Handset) (N)
RSSI Level
0x11 hex±8 hex (at -81dBm)
0x1E hex±8 hex (at -63dBm)
Adjustment (Handset) (O)
Power RAMP
Power RAMP is matching
Adjustment (Handset) (P)
R601 R602
R603
R610
R611
R612 R613
R614
R615
C602
C603
C604
C608
C609
IC602
Iw
Vin
CII
Vop
V+
Vtc
Vsw
Vn
GND
Isens
CHARGE
TERMINAL
R
Blk
Vo
PSUP1649Z
PbF
VDC
VF
IC601
A
KX-TCA355RU CIRCUIT BOARD
(CHARGER UNIT) Flow Solder Side View
DIGITAL 
VOLT
METER
12
Ω/2W
(A)
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