Brother International FAX-170 Service Manual - Page 45

Circuit, Diagram, European, versions

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CHI A " 17V 8 CP2 5 -2PPJ 5 6 AO 2 ® 50 P•r L2 C 2 JW1 (IC ASv SOY 5• 2 3 23 112 .P29 ,2 2 .02 1•3 IRS -65 bILL331, JP26 , 51 7 R62 On 241' 6 0 07 23 ial IX, ' 44LL,N v, 95 P9 ,P2 O 0. A, 'l 44' 3RT 1 P .110. 0 I 411. ' P n Li. SPA 1- 26,5117 e556 P7 520 I fax 30P5 CI DPI CI 3321 50c ^i t 5 1'65 1:01 Po, 14 SOY A 65 6An.5-O , .„ 0( 25) 2005 PHA 2 ,62 iC,R A' P17.57 OS F53 47 1001: 4. VP 500 4.,„ 1 10) 1308 7.1 R6 I 0. 26 SP1 ! If C5 t2 R79 59..OS 4, : I R ;PIA C51 $66R3 CI 131 11 tIC474 2.w C E. ICY 02 2SC'I833 0 Rd .5. --0S0v R64 On 11..R 71 SOY 10 656 021 CC39. P43. 3. 223 024 C5C-1H73.."..q1S C25 CC, 03 .004 2 325.F 71 SOY R31 cgs ur, 0O9. REF P32 t0oli (IC 30s r37 ~J 630 0ASAN •SO RJ7 2 C3 C) PC 'O, .66 70) IN C30 CC•0.1 Snv S06 10 6 J VIT (5J 1615x701 SD, P,A.,.02 113 24.57 .P12 , 01 JP 133, JPI '52 1132 (5: 112, 4101 '74 6 4.4 CC551 RIO -I L CJ'56 ,* ,6;ci 0 O L CIS CC55. %0N RI3 '84 1 R111 g I°5..-741,2,,6.5"7 47Pcrs:: C.5 CC51, Q5 Y R23 C.7 ,0, 26Y7 1--CO)REF r S CC,.. "I" d 141. R0S S0v ON .1 3.21 P2 516 20 C) I 7e, ?OS 10 56 Oa 3 A 4, R7. 2 4 R20 3 S0 v PP7I ISR SO RI I 221, P4 A. OAS 17 11 20 FAP AD :C. S RF n 14 '3 C6 A. ^F0 P1 Imp/ 60131 -181 F P7 :812R.PR. PN lee .6P NCU c C044,7antlAusCr3.. 3 3 NCU PCB Circuit Diagram (European versions) O Surge absorber • Noise filters ® Line relay (CML relay) • Line transformer • Circuit related to the line transformer ® High-impedance transformer circuit O Calling signal detector ® Loop current detector ® Dial pulse generator & DC current loop circuit @ Telephone circuit (Not included in the circuit diagram for power failure phone) O Reference voltage generation circuit for the operational amplifier in ®. @ Pulse shaper @ Line current detection input circuit III - 33

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PCB
Circuit
Diagram
(European
versions)
O
Surge absorber
•
Noise
filters
®
Line
relay
(CML
relay)
•
Line
transformer
•
Circuit
related
to
the
line
transformer
®
High
-impedance
transformer
circuit
O
Calling
signal
detector
®
Loop
current
detector
®
Dial
pulse
generator
&
DC
current
loop
circuit
@
Telephone
circuit
(Not
included
in
the
circuit
diagram
for
power
failure
phone)
O
Reference
voltage
generation
circuit
for
the
operational
amplifier
in
®.
@
Pulse
shaper
@
Line
current
detection
input
circuit
III
-
33