Text preview for : Schematic_Diagram.pdf part of Samsung Schematic Diagram Samsung Microwave SMH9187ST Service Manual Schematic_Diagram.pdf
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D106 +12V +5V
ST101 UF4007
ST-SM3GV
C106
10 470uF F1 F2
PTC101
390M
L101
POWER SUPPLY D107 L102 +5V -24V
L1 D101 1N4007 1mH UF4007 3.9uH
1 6
D102 1N4007 C107 C108
C103 1 2 32 33
1nF 470uF 220uF F11 F12 F21 F22
ZNR101 C101 C102 R101
10D471 22uF 22uF 100K 8 5 VDD VKK 31
D103 1N4007 C109
D108 47uF -24V 30 VAREF VFD-S1 4 P6 NP-4 23
N D104 1N4007
R102
2 9
UF4007
64 VDD-1 40 VFD-S1 VFD-S2 5 P7 NP-3 22
100 D109 F1 F2 41 VFD-S2 VFD-S3 6 P8 NP-2 21
SB140 C112
3 7 100nF 42 VFD-S3 VFD-S4 7 P2 NP-1 20
C110 ZD101
470uF UZ5.1BSB 43 VFD-S4 VFD-S5 8 P9
D105
INTERRUPT 1N4007 4 11 1 VSS 44 VFD-S5 VFD-S6 9 P11
R106 C104
51K 1nF
4 TEST 45 VFD-S6 VFD-S7 10 P12
+5V 23 AVSS 46 VFD-S7 VFD-S8 11 P1
47 VFD-S8 VFD-S9 12 P16
TT-R 20 INT0 48 VFD-S9 VFD-S10 13 P13
R107 R108
51K 20K
RESET 8 RESET 49 VFD-S10 VFD-S11 14 P4
PC102
PC817 R109 INT C105 +5V +5V 50 VFD-S11 VFD-S12 15 P15
1 4 4 2 100nF
TMP86CM72FG-CHUN
D B 2 XIN 51 VFD-S12 VFD-S13 16 P3
2K IC102 1 R104 XTL101
TNY276P E 330 8MHz 52 VFD-S13 VFD-S14 17 P5
2 3 5 8 R103 PC101 R111 R110
S5 S8
1K PC817 2K 2K 3 XOUT 53 VFD-S14 VFD-S15 18 P10
6 7 4 1
S6 S7
RESET
54 VFD-S15 VFD-S16 19 P14
R105 IC103
1K 7033P BZ 11 PDO4 55 VFD-S16 VFD-G1 24 1G
3 2
BZ-L 28 VFD-G2 25 2G
SVM-07SS10
C114 C111
10uF 100nF
BZ-N 29 63 LV-IN1 VFD-G3 26 3G
ZD102
MTZJ4.3B
BZ-S 32 56 VFD-G1 VFD-G4 27 4G
DSP101
IC101
57 VFD-G2 VFD-G5 28 5G
DGND DGND TCO 12 58 VFD-G3 VFD-G6 29 6G
DOOR 13 59 VFD-G4 VFD-G7 30 7G
60 VFD-G5
TCO
+12V +5V +5V +12V P-R-H 14 61 VFD-G6
P-R-L 15 62 VFD-G7
R402 I-R 16
CBE2220BA
2K
R501
2K BZ CN-R 17 25 Vs
BZ501
R403
2K
TR501 CB-R 18
KRC246M
DOOR LV-R (HIGH-R) 19 6 LV-IN2
TR401
KRC246M
M-R 21
R404 R405 C402 R401 C401 R502 R503
470 2K 100nF 10K 100nF 2K 470
VENT 22
LOW-R 26
TR502 TR503 TR504
3 KRC246M KRC246M KRC246M 39 KEY-7
4 38 KEY-6
BZ-L
1 27 37 KEY-5
1N4148M 1N4148M 1N4148M 1N4148M 1N4148M 1N4148M 1N4148M 1N4148M 1N4148M
5 RY204 Ladder-1 7 36 KEY-4 D601 D602 D603 D604 D605 D606 D607 D608 D609
DU12D1-1P
2 BZ-N
Ladder-2 9 35 KEY-3
L1
CN401 D201 INT 10 34 KEY-2
N
SMW250-05V_WHT 1N4148M
37
Vm 24 33 KEY-1
CN201 POWER-L BZ-S C113
SMW250-09AV_RED RY203 1nF
DU12D1-1P
1
D202
1N4148M CN601
POWER-L 12516HS-16
3
RY202 POWER-H POWER-H 9 8 7 6 5 4 3 2 1
G5T-1A-12VDC
5 INRUSH
TR201 TR202 TR203
1 2 3 4 5 6
PTC201 D203 D212 OPTION
MM4148 KRC246M KRC246M KRC246M
270M 1N4148M
#7
7 P-R-L
INRUSH R601 2K
D213
RY205 +12V 1N4148M
KEY-1 16
G5T-1A-12VDC
TIME Auto/Time
7 8 9 0
9 P-R-H OPTION
D204 D211 COOK1,2 DEFROST #6
MM4148 I-R
1T4
D214 R602 2K
KEY-2 15
1N4148M
D210 NIGHT
1T4
RY206 MAIN +5V +5V +5V TIMED POWER OPTION
CN202 G5T-1A-12VDC
SMW250-07AV_RED REHEAT LEVEL