TK-5210
(
G
)
26
COMPONENTS DESCRIPTION
Control unit (X53-4390-XX)
Ref. No.
Part Name
Description
IC1
IC
Flash memory
IC3
IC
DSP
IC4
IC
Static memory
IC5
IC
Voltage detector (RST)
IC6
IC
Buffer AMP (Logic)
IC7
IC
Real-time clock
IC8
IC
Clock buffer AMP
IC9
IC
Bus buffer (LCD)
IC10
IC
ASIC
IC11,12
IC
Audio AMP (BTL)
IC13
IC
Audio AMP (1/2 Audio pre-AMP,
2/2 NC MIC AMP)
IC15
IC
I/O Expander
IC16
IC
Voltage Detector (/BINT)
IC17
IC
Voltage regulator (3.1V)
IC18
IC
Bus buffer (LCD)
IC19
IC
5V to 3.3V Level convertor
Q1,2
Transistor
AVR for backlight LED
Q3
Transistor
5A AVR
Q4
FET
DC switch (5AC)
Q5
Transistor
5A AVR
Q6
Transistor
Echo cancel MIC switch
Q7,8
FET
DC switch (/BINT, PSW)
Q10,11
FET
DC switch (BLED, TXLED)
Q12
Transistor
DC switch (36MC)
Q13
Transistor
DC switch
Q14
FET
DC switch (31BU)
Q15
FET
DC switch (STCAMI)
Q16
Transistor
DC switch
D1
Zener diode
AVR for backlight LED
D2~5
LED
Key backlight
D6~8
LED
LCD backlight
D9~12
LED
Key backlight
D13~16
Diode
Reverse current prevention
D19,20,22
Varistor
Surge absorption
D23~26
Diode
Reverse current prevention
D27
Varistor
Surge absorption
TX-RX unit (X57-7650-10 A/4)
Ref. No.
Part Name
Description
IC101
IC
Auto power control
IC102,103
IC
SPDT
IC104
IC
DC AMP for APC
IC201
IC
DC AMP for BPF
IC202
IC
DBM
IC204
IC
FM IC
IC206,207
IC
Multiplexer
IC250
IC
IF AMP
IC301
IC
DC AMP for VCO tune
IC303
IC
PLL IC
IC304
IC
1/2 Divider
IC414
IC
Rheostat
IC500
IC
Buffer AMP (AFC/TCXO_MOD)
IC501
IC
5V to 3.3V Level converter
IC502
IC
DAC
IC503
IC
BPF Amp for SQL voltage
IC505
IC
I/O Expander
IC506
IC
Buffer AMP (AF)
IC507~509
IC
AF pass control
IC510
IC
DC AMP/Summing AMP
IC511
IC
Logic switch
IC512
IC
Buffer AMP (Mod)
IC513
IC
Buffer AMP (MIC)
IC514
IC
Buffer AMP (VOX)
IC515
IC
MIC switch (/SCSW)
IC516
IC
Buffer AMP (MIC/VOX)
IC517
IC
3.3V to 5V Level converter
IC700
IC
AVR (5MCS)
IC701
IC
AVR (5T/5R)
IC702
IC
AVR (5C)
IC704
IC
AVR (5M)
IC705
IC
AVR (33M)
IC706
IC
AVR (33C)
IC707
IC
DC/DC converter (3.6V)
IC708
IC
DC/DC converter (15V)
IC709
IC
DC/DC converter (1.5V)
IC710
IC
AVR (33A)
IC712
IC
DC AMP (LCDCNT)
IC713
IC
DC/DC converter
IC714
IC
Temperature detection