Sharp GX10i Service Manual page 110

GX10i
KEY PWB-B (1/2)
A
B
N
C
D
E
F
G
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 5-1.
1
CONFIDENTIAL
IC303
TK11129CSIL
2.9V REGULATOR
IC304
TK11129CSIL
2.9V REGULATOR
1
0V
1
0V
2
3
0V
RFON,TCXOEN,TXON
KEYPADCOL[0-4],KEYPADROW[0-4]
ADP,ADPDET,CONT1,CONT2,CTS,RTS,RXD,TCK/LED_ON,TDI,TDO,TMS/CHECKER,TXD
SIMCLK,SIMIO,SIMRST
2 3
Figure 21 SCHEMATIC DIAGRAM (19/23)
2SA1955 A
2.88V
0V
R349
2.2K
2.88V
2
R351
1.2K
Q309
2SA1955 A
2.88V
0V
2.88V
Q304
EMG9
5
2.87V
R352
1.2K
2.88V
4
3
4
5 – 26
VSYNTH
VSYNTH
G
5-28 (2-F)
2.9V
VRF 5-28 (2-A)
G
VRF
TP319
2.9V
VTXVCO
5-28 (2-C)
G
VTXVCO
5 6