Icom IC-751A Service Manual page 99

SECTION 9 IC SPECIFICATIONS
9-1 LINEAR ICs
uPC1037H (DOUBLE BALANCED MODULATOR) 1:A7805 (5V POSITIVE VOLTAGE REGULATOR)
PIN CONNECTIONS PIN CONNECTIONS
Veo 1
Output1 2]
Outeut2 30 Input 1
mee Common 3 O
GND 4(]
Output 2
Signal input 5]
Bypass 6] Common —————/
Carrier input 7 _
UPC577H (FM-IF AMPLIFIER) LA78L05 (POSITIVE VOLTAGE REGULATOR)
PIN CONNECTIONS PIN CONNECTIONS
Bypass 1[]
Input high 27
Inputiow 3
GND 4(] 1 Input
Output 5] 2 Output
Bypass 6(]
Vee 7]
UPC1241H (AUDIO POWER AMPLIFIER) BA401 (FM-IF AMPLIFIER)
PIN CONNECTIONS PIN CONNECTIONS
Input 1 | O
Ripple filter 2 Input 1 <= |
ie ; Bias 2—"_ |
GND 5 ) GND 3C—
Output 6
Bootstrap 7 0 Output 4—
Vec
8
Veco 5c
A7808 (POSITIVE VOLTAGE REGULATOR) NJM4558D (DUAL LOW NOISE AMP)
PIN CONNECTIONS PIN CONNECTIONS _ (Top View)
Input 1 AOutput 1 O T]5 B (+) Output
Common 3
Output 2 A(-) Output 2([] ]6 8 (-) Output
A(+) Output 3[[] ] 7 B Output
Vcc 4] a Vcc