Icom IC-2200H Service Manual page 6

SECTION 2
2-1 IC-2200H
• MAIN UNIT (TOP VIEW)
Power switch circuit Power switch circuit
Q28*: 2SC4684 Q28*: 2SC4684
Q30: DTA143TUA Q30: DTA143TUA
Q31: DTC143ZU Q31: DTC143ZU
Speaker Speaker
AF power amplifier AF power amplifier
(IC9: TA7252AP) (IC9: TA7252AP)
VCO circuit VCO circuit
*Located under side of the point *Located under side of the point
• MAIN UNIT (BOTTOM VIEW)
1st Mixer Mixer
(Q19: 3SK299) (Q19: 3SK299)
APC controller APC controller
(IC6: NJM3404AV) (IC6: NJM3404AV)
RF amplifier RF amplifier
(Q27: 3SK299) (Q27: 3SK299)
IF amplifier IF amplifier
(Q16: 2SC4406) (Q16: 2SC4406)
FM IF IC IF detector
(IC4: TA31136FN) (IC4: TA31136FN)
D/A converter D/A converter
(IC5: M62363FP) (IC5: M62363FP)
INSIDE VIEWS
2 - 1
Power module Power module
(IC10: S-AV36) (IC10: S-AV36)
Discriminator Discriminator
(X2: CDB450C24) (X2: CDB450C24)
2nd IF filter IF filter
FI1: CFWS450F FI1: CFWS450F
FI2: CFWS450HT FI2: CFWS450HT
AGC AGC
(Q38: XP6501) (Q38: XP6501)
Reference oscillator Reference oscillator
(X1: CR-779 21.25MHz) (X1: CR-779 21.25MHz)
C5V regulator C5V regulator
(IC8: TA78L05F) (IC8: TA78L05F)
+8V regulator +8V regulator
(IC7: TA7808F)
(IC7: TA7808F)
TX/RX switch TX/RX switch
(D6, D7: MA77) (D6, D7: MA77)
PLL IC PLL IC
(IC1: LV2105V) (IC1: LV2105V)
Enphasis switch Enphasis switch
(Q41: 2SC4617)
(Q41: 2SC4617)