Block Diagram - HYT TC-508 Service Manual

MIC
B201
2
1
2
AF AMP
1
U302
SPK
LED
D602
LED
VOLUME
D601
QT_OUT
QT_MODULATING
FILLER
R607
BATTERY
R632
G602
R206
QT_OUT
R204
MODE_OUT
C204
C205
AF_MODULATING
FILLER
EC0/EC1/EC2/EC3
RESET IC
U605
E2ROM
SDA/SCL
U603
PTT/SK1/SK2
APC
T/R
VR SW
Q604
Q305
VT
V_SAVE
VCC
LDO
U602
VDD
5V
TC-508 UHF/VHF Block Diagram
TC-508 SŸ t hFVþ
SP_JACK
J3
PJ-D3027D
MICJACK
AF_SW
Q302
SW
VOX_DET
Q611
S201
D616
RXD
TXD
DATA/STB/CK
U601
MB15E03S
MCU
LD
SRT3210
QT-AF
W/N
SQUELCH DET
LDO
CIRCUIT
U606
N-DET
R562
C597
NOISE FILLER
FIL OUT
CIRCUIT
LDO
R509
U604
C553 FIL IN
R510
DEMODULATING
CIRCUIT
V_BAT
W/N
CD501，R502，
C536
VR SW
D405
POWER AMP
LOCAL OSCILLATOR AMP
Q406
2SC4226
VT SW
D404
LOCAL OSCILLATOR AMP
Q104
2SC5108
BUFFER AMP
Q105
2SC4226
PLL
LOOP FILTER
PLL
TX/RX
U102
CP
L
Crystal
XT 101
38.4MHz
IF2 FILLER
CF501
450KHz
IF1 AMP
Q506
DEMODULATING IC
U611
BA4116FV
QT-AF
AF PROCESSING
AF AMP
CIRCUIT
AF
U613
U610 ，C554，R538
TA75S01F
92
VR
LO
POWER AMP POWER AMP
Q402 Q403
RD01 RD07
Q401
2SC4226
VT
APC_SW
T/R Q404
DTC114YE
T/R SW
Q103
D105
VT
VCO
Q102
APC
VDD
3 4
QT_MOD
E FILLER
QT_OUT
R103
C132
2 1
MIXER
Q502
2SK318
IF1 FILLER
XF501
38.85MHz
HYT Science&technology Co.Ltd
TC-500S
Model name:

Block Diagram

Part Name:
AF
File No:
Prepare:
ZHENG JIAWEI
POWER
ANT LPF
MATCH
APC
U401
SW
Q405
DTC114EE
RX_TL
BPF1
LNA
Q501
BPF2
AT41511
Page 1 OF 1
2010.01.15
Date
Rev V01
Approve
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