Circuit Board (Handset) - Panasonic KX-TG2853BXS Service Manual

KX-TG2853BXS/KX-TG2854BXS/KX-TGA280BXS

14.3. Circuit Board (Handset)

14.3.1. Component View
(IC700: 5pin)
TP: +1.8 V
for
JIG
PFUP1609Z
BX
ANT_2
ANT_1
RSSI
VDD5 VDD5
R106
R105
IC300 IC300
5 4
R301
1 3
C308
Q300
R50
C461 C461
+1.8V +1.8V
C11
R462
C466
C10
PCM-FO PCM-FO
PCM-CK
R87
R86
R88
C12 PCM-DO
C13
RST
(BBIC:
53 pin)
Q302
R6
URX
C14
UTX UTX URX
UTX
R70
VBAT
C71
VBAT
GND
R75
GND
R103
R71
R102
R100
R101
Q100
CHG-
CHG- CHG-
L503
A
PbF PbF
+
CN
C415
D402 D403
C423 C424
C419
C418
TP700
C711
R713
R716
C708
R300
RFCLK RFCLK
C309
+
+3.4V +3.4V
C310
C464
D460
C460
C451
4
1
C450
IC460 IC460
5
8
L1
R89
R2
C3
R82
C1
R83 DG DG
R80
C400
C8 R402
C403
R401 R81
R405
R400
C405
C407
C420
R415
+2.5V +2.5V
CHG+ CHG+
JTAG JTAG
Q500
C502
R501
C417
Q502
L502
C500
70
IC700
(RF Module)
TP: RF CLK
(10.368 MHz)
IC1
(BBIC)
LED_BIAS
(BBIC: 8 pin)
CHG+