Kenwood TH-22A Service Manual page 21

TH-22A/AT/E
SEMICONDUCTOR DATA
DC -DC convertor : TC7660MEOA (IC2)
« Pin connection diagram
TS
nc {1} O Ai vt
capt] 2 7] NC
TC7860M
ano | 3 re] LOW
VOLTAGE(LV)
CAP | 4 rs] Vout
NC=NO INTERNAL CONNECTION
e Block diagram
vt capt
8 2
cot
a
2 [4 verse
N
ie
ee
tne
OSCILLATOR
TRANSLATOR
4
-
© CAP
;
J
vO
|
—L
5_o VouT
INTERNAL
—E—
VOLTAGE
REGULATOR
Loaic
NETWORK
TC7660
3
GND
Power module: PF0310-01 (IC3)
¢ Pin connection diagram
= |
=
—r
Ahan —
Pin assignment
Pin
: Vpe
+ Vdd
+ Pout
: GND(flange}
21