Yashica Electro 35 AF-mini, Руководство по ремонту, Страница: 62 / 125

S1
S2
CELL
CdS
R4 RF
BÜLB
SWITCH
J
C1
N S 4
_
AUTO BULB _ 1†LXsI_1 _ _ _
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R7
R6
19
O4
496, Q4
6' Ofifoff
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D D Ä P H R A G M / / ( _ )
R n s 1 s T 0 R S /
/
ASB
REX;-,írıf C“
P
HEAVY LINES INDICATE CURRENT PATH FOR
BATTERY-TEST LAMP
LI
@
RED
L A M P R 1 3
TR2
R
TR3
C2 C3
ELECTROMAGNET
L2
YELLOW
LAMP
OO!
B AT T E RY : _ _ _ .
R 1 6 _ : - ' _ “ °
/
/ /
/ /
„ _ “ _ _ _ _ _ _ _ _ _ _ - - - /
/
T R - 5
/ S 8
BATTERY-TEST
SWITCH
Depressing the battery-test button closes the battery-te st switch S8. Battery current
then flows through resistors R21 and R20. A sufficient voltage drop across R21 turns
on transístor TR5. So current flows through the transistor and through the battery-
t e s t l a m p L 3 .
RELEASE
SWITCH
S7 BATTERY
SWITCH
R20
R21