Brother International MD-817 Service Manual - Page 64

related, Check, fully, clockwise.

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D107 „K" or CN5 pin 2: OK #7 More than 15V NO Dispose of printed-circuit board. NO ±15V OUT: OK #7-1 YES D106 X: OK #7-4 NO PH52 pin 1: OK #7-5 NO (P61) NO Less than 15V Power OFF YES Dispose of printed-circuit board. YES ±15 V IN: 0O #7-3 NO ±15V IN: OK #7-2 YES +15V, NG Replace REG101. -15V: NG Replace REG102. YES Replace HIC4. Replace HIC4 8110 (R110 & 111) PTR101. NO Replace BD101. #7 (HIGH) #7-4 (D106 A") #7-1, #7-3 (0104 „K") #7- 1, #7-3 (D101 Al • CRIFIFICILM161[111 „: FYI IR I.INUUMPFT,Ell co, S_ ir Ze w i l R41 .91 7, 4 ii22g # 14 4 OSO 6$ • 0. • ,r #7-2 D101"K" D104-A" #7-2 (D104 X) 0CV #7-2 (D101 „K") #7-1-#7-5 related OCV: Check pin OCV HIGH VR must be fully clockwise. #7-5 (PH52-4) \#7 (CN5-2) D107 „K" ±15V OUT: OK or CN5 pin 2:OK #7-1 ±15V IN: OK #7-2 ± 15 V OUT: 00 #7-3 Treadle neutral Treadle forward -0.7+0.2V --12V or more D101 ,,A" +15±0.5 V D104,,K" -15±0.5 V Refer to D101-A" upper right fi- D104"K" gure. 0O at X1 range (P52) --17V or more 10ms or less -17V or lower 0106 „A": OK #7-4 +13V or more - 0.3V or less PH52 pin 4: OK #7-5 -13V or less +0.3V or more - 60 -

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D107
„K"
or
CN5
pin
2:
OK
#7
More
than
15V
NO
Dispose
of
printed
-circuit
board.
#7
(HIGH)
NO
±15V
OUT:
OK
#7-1
YES
D106
X:
OK
#7-4
NO
PH52
pin
1:
OK
#7-5
NO
(P61)
NO
Less
than
15V
YES
Dispose
of
printed
-circuit
board.
YES
Power
OFF
±15
V
IN:
0O
#7-3
NO
±15V
IN:
OK
#7-2
YES
+15V,
NG
Replace
REG101.
—15V:
NG
Replace
REG102.
NO
Replace
BD101.
YES
Replace
HIC4.
Replace
HIC4
8110
(R110
&
111)
PTR101.
#7-4
(D106
A")
#7-1,
#7-3
(0104
„K")
#7
-
1,
#7-3
(D101
Al
•
CRIFIFICILM161[111
„:
FYI
IR
I.INUUMPFT
,
Ell
co,
S_
ir
.91
74
,
#
ii22g
14
4
OSO
•
6$
•
0
.
,r
Ze
w
i
l
R41
#7-2
(D104
X)
#7-1
—#7-5
related
OCV:
Check
pin
OCV
HIGH
VR
must
be
fully
clockwise.
0CV
#7-2
(D101
„K")
#7-5
(PH52-4)
\#7
(CN5-2)
#7-2
D101”K"
(P52)
--
17V
or
more
D104
-A"
10ms
or
less
—17V
or
lower
D107
„K"
±15V
OUT:
OK
±15V
IN:
OK
±
15
V
OUT:
00
0106
„A":
OK
PH52
pin
4:
OK
or
CN5
pin
2:OK
#7-1
#7-2
#7-3
#7-4
#7-5
Treadle
neutral
-0.7+0.2V
D101
,,
A"
+15±0.5
V
Refer
to
D101
-A"
+13V
or
more
-13V
or
less
D104,,K"
upper
right
fi-
D104”K"
Treadle
forward
--
12V
or
more
—15±0.5
V
gure.
0O
at
X1
range
-
0.3V
or
less
+0.3V
or
more
-
60
-