Tc-618/626 Level Diagram - HYT TC-618 Service Manual

TX PART
16mVrms 450mVrms 150mVrms
AN29160
MICROPHONE
Mic Amp AF HPF SF Amp
LMT
40 51
Mic Mute
VR200
47K
AF
RX PART
-120dBm -122dBm -104dBm
TUNE BPF LNA TUNE BPF
Q500
AT41511
BPF BPF
RF

TC-618/626 Level Diagram

-45dBm -26dBm -8dBm
VCO buffer
Q100
C112 2SK508NV Q102 Q104 D400
C C130 C141
1 1
D104
Q101
2SK508NV
D500
-10dBm
LPF
-108dBm -98dBm -103dBm
RF MIXER 1stIF BPF
Q501
3SK318
3
2
38.85M
IF
99
3dBm 15dBm 27dBm
stimulator power AMP
Q400 2SC5108 Q401 2SK4988
Q402 Q403
2SK3475 RQA0002
C400 C402
C405 C412
1 1
2
RF
attenuator
step1to23
-67dBm 250mVrms
-69dBm
AN29160
2ndIF de-emphasis
BPF
23 25 29 44
IFAmp 1 IFAmp 2
AF HPF
AF mute Volume
21
MIX2
DET
AF
TC-618/626 Service Manual
39dBm 37dBm
LPF
C429
2
200mVrms 1W(BTL)
AF AMP
TDA2822 16Ω IW
52
SW