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3. DRAWINGS: MODULE QW-3721
3-1. CIRCUIT DIAGRAM
GND VDD2
BAT
VCH VC1 VC2
C6
C4
XTB
Xtal
L1 - - - - - L8 L9 - - L17
LD1
S2
VDD1
BD
C7
XT
T1
T2
T3
KI4
KI2
KI3
KI1
KI5
KI6
KI7
KI8
S1
SCR
SCIN
RP1RP2
Cp
VDSPVC3 VC4
Di1
VHF
C5
AC
T4
KC4
KC2
KC3
R1
R2
VSC
SC
C8
R3
VPM
Rb
GNDB
✽5
✽1
✽4
✽4
✽4
✽3
✽3
✽3
✽3
✽7
✽8
✽9
An.B2
✽2
✽2
O1 O2
✽3
✽3
CG
O3
✽1
An.B3
O4 O5 O6
An.B1
EMP ✽3
PM_RES1
KC1
KC5
RPM
Tr3
LS1 LS2 LCS
✽1✽1
✽10
✽11
LC1 - - LC3
✽1
✽1
GND1
VOUT0
COILB
LED
DRIVER
5ENABLE
4(N.C.)
3GND
2(N.C.)
1LEDOUT
(N.C.)A
(N.C.)9
VDD8
CE276CE1
LED2
Dild1
LL2
LED1
Rld1
Rld2
Cld1
Cld2
Tr1
PZZ
Di2
R1
LL1
SK
KS
✽6
Cxt
Ccp
Cbat
Rbat
Xtal2
ISB
ANT
Rcp
Xtal3
Cc
✽13
✽12 ✽13
FET-S
GND4
Asel Pon P3-2 Hold P14
FET-D
P1
P2
GND3 GND2
P3-1 P4 P5
GND5
P12
P13
GND1
TCO
VCC
P9
P7
Crh1
Crh2
Crh3
Crl1
Crl2
Crl3
✽13
✽13
✽13
✽15
SDA SCL SCUT
✽1 ✽1
✽1
✽1 ✽1 ✽1✽1
✽1
✽1
✽15
✽15
✽14✽14
✽14
LSI
TOTAL 74PINS
BONDING 49PINS
✽ 1. No bonding
✽ 2. GND-KI6: Short (Soldering)
GND-KI7: Open (No Soldering)
✽ 3. Latch type key
✽ 4. Short (Soldering) (R trimming)
✽ 5. GNDB is used for the bias on the back of the tip.
Mount Rb close by the tip.
✽ 6. Inclination sensor
✽ 7. Normal Low
✽ 8. LD2 (Normal High) is used in this module.
✽ 9. LD3 (Normal Low) is used in this module.
✽ 10. LD4 (Normal Low) is used in this module.
✽ 11. XT_DVR is used in this module.
✽ 12. Cxt is not mounted in the specification for dual
transmitters.
✽ 13. Cc, Crl1, Crl2, Crl3, Rxt3 and Xtal3 are not mounted in
the specification for single transmitter.
✽ 14. Soldering short pad. (Short after tuning antenna.)
✽ 15. Any one of VCC, P3-1 and P3-2 should be wired to
Rbat and Cbat since their terminals are wired inside
ISB.
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