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4 - 5
• D/A CONVERTER (MAIN UNIT: IC11)
BALL
No.
LINE
NAME
DESCRIPTION
I/O
N4
DSP_SI
DSP (IC10) serial data.
I
N5
DSP_
AFC1
DSP (IC10) “AFC” input.
I
N6
RTC_
SDA
Serial data to the real time clock (IC4).
I/O
N7
PLLSTB
PLL IC (MAIN UNIT: IC6) strobe.
O
N9
LCDDT
LCD (DS10) serial data.
O
N10
DSP_
DEMP
DSP (IC18) “DATA EMP” input.
I
N12
G_HIB
GPS module (CHASSIS: EP1) controller
(IC1) power control.
H: GPS module is ON.
O
N15
ECK
EEPROM (IC7) clock.
O
P1
SD_CS
MicroSD card chip select.
O
P2
SD_SCK MicroSD card clock output.
O
P4
DSP_CK DSP (IC18) clock.
O
P5
DSP_PD
DSP (IC18) operating mode control.
H: While in the power save mode.
O
P6
LCDRES LCD (DS10) reset.
O
P7
PLLDATA PLL IC (MAIN UNIT: IC6) serial data.
O
P9
PLL SW
PLL lockup time control.
L: Fast lockup time.
O
P12
GPSC
GPS module (CHASSIS: EP1) controller
(IC1) switching.
H: GPS module’s power is ON.
O
P13
RX232
RS-232C serial data input.
I
P14
INTPTT
Internal PTT (MAIN UNIT: S2) input.
L: Pushed.
I
R1
SD_RXD MicroSD card card data input.
I
R2
DSP_SO DSP (CI18) serial data.
O
R4
DSP_
AFC2
DSP (IC18) “AFC” input.
I
R5
DSP_
RESET
DSP (IC18) reset.
H: Reset.
O
R6
RTC_
SCL
Clock signal to the real time clock IC
(IC4).
O
R7
PLLCK
PLL IC (MAIN UNIT: IC6) clock.
O
R8
LCDCK
LCD (DS10) clock.
O
R13
AFON
AF power AMP (MAIN UNIT: IC2) control.
L: AF power AMP activated.
O
R14
EXTPTT External PTT input.
I
• CPU (LOGIC UNIT: IC5) (Continued)
PIN
No.
LINE
NAME
DESCRIPTION
I/O
7
BPF1
Tuning voltage to the BPF (D32, L40,
C353).
O
8
BPF3
Tuning voltage to the BPF (D27, D29, D30,
L28, L31, L33, C286, C290, C292, C293,
C297, C299–C301, C304, C305).
O
11
SQLOUT
Noise squelch level adjustment.
O
12
RXAFOUT RX AF output level adjustment.
O
19
VCOMOD
VCO (Q27
, D10–D12)
deviation adjust-
ment.
O
20
REFMOD
Reference oscillator (X1) deviation adjust-
ment.
O
24
BPF2
Tuning voltage to the BPF (D27, D29, D30,
L28, L31, L33, C286, C290, C292, C293,
C297, C299–C301, C304, C305).
O