Read Panasonic KX-TS2388RUB / KX-TS2388RUW / KX-TS2388CAB / KX-TS2388CAW / KX-TS2388UAB / KX-TS2388UAW Service Manual online
7
KX-TS2388RUB/KX-TS2388RUW/KX-TS2388CAB/KX-TS2388CAW/KX-TS2388UAB/KX-TS2388UAW
4 Technical Descriptions
4.1.
Block Diagram
1
R
5
D ,
3
D
1
C
P
1
T
P
S
D1
C1
MIC (2AP)
6
D ,
4
D
1
CI
D601
Q107
Q101, Q103
D101
T
IC601
Handset/Headset
R
SP
MIC
Q108
IC201, Q201
D302
Q110
D301
IC871
IC302
IC831
1AP PCB
D505
IC861
IC651
4.5V
2AP PCB
IC501, Q501, Q502
Batter
y
LCD
KX-TS880 /
TS2388 Ser
ies :
BLOCK DIA
GRAM
Q422
Q401, Q402, Q403
IC801
MICON
Ringer indication LED
LED1 (Small PCB)
JOHN SMITH
1234567890
RINGER
IC
INUSE / EXHOOK
Line
ON/OFF
Handset Receiving
Amp
EEPR
OM
128K
TIPIN
Sidetone
Br
idge
RESET
BA
TTLO
W
Reset IC
2.7V
Handset
Sending
Amp
K
e
yboard
Switch
RIN
GIN
Batter
y
Lo
w
Detector
Regulator
3.3 V
FSK / DTMF Circuit
W
a
k
eup Circuit
WAK
EU
P
Dumm
y Ringer
Circuit
SP-Phone
Circuit
Expander
I/O IC
DRIN
G
DTM
F
Dial T
o
ne
Detect
Ex-Hook
Detect
T
O
NE_DET
In Use
Detect
PGAIN2
RING_
DET
D801
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