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6
5
4
3
2
1
R1011 221K
SPKR_NET_B1
R100 93.1K
R119 750 C103 100pF
R101
A-100V+14.65
750
+100VNL
C122 R1107 R1108 470K 2.2uF 2 11+ 1 2 +18V
1
SPKR_B+ R305 3.32K C223 0.1uF
SCHASSIS 1
R304 3.32K
C232 270pF
499
D103 MURS160
2
C113 .47uF R117 62K R136 10 R121 2.21
CHASSIS
1 1
D109 1N5819
4
R138 10
R132 6.81
2
4
R128 6.81
2
+ R143 10K
+ IC8-A 2082 J206A TWIST LOCK SPEAKER R1105 6.04K C141
3
CHASSIS
D108 1N5819
1 3 1 3
C127 2200uF D102 RS3GB
1
SPKR_B_GND
SCHASSIS
R111 620
CHASSIS
C111 R105 4.99K R106 10K
1 2 3 1
2
3
Q102 N-CHANNEL R135 10K R131 10K
Q100 N-CHANNEL BLK
CHASSIS
R102
1
10uF
+18V
R104 10
47pF P1 PAD_350 R191 C123 0.1uF 6.04K R190
OUT1+ 2
Z100
2 1 AVAA 1 16 ACSH 4
2
Q105 CEN1233 D104 1060E
2
WHT
2 1
D
R126 C115 82.5K 1nF R144 4.99K C116
C112 10uF
6.2V
4 CHASSIS 2 15 AVB
L101 18.5uH
D
AOUTPUT
3
R137
AIN 3 14 AHO 1
1
C120 1uF
3
1 2 1
7.5K
3
10
ACLIP ACLIP 4 13 AVS
C108 22uF Q104 CEN1232
D106 MURS160
4 2
L100 18.5uH
3
+ IC6-A 2082
1
SPKR_A+ R306 3.32K R303 3.32K C132 270pF
1 1+ 2 1OUT1-
R192 7.5K
+ IC104-A LM393
3
2
1nF C117 R114 1nF 3.48K R122 R145 1.65K 47.5K C119 1uF
ACSD
5
12
AVCC
R109 4.99K
Z101
1 2 AVSS 6 11 ALO
C114A N/U D107 MURS160
1
R147 22 R148 22
R153 22 R154 22
R155 22 R156 22
R157 22 R158 22
C114 .47uF
6.2V C104
C106 0.1uF
C105 0.1uF
CHASSIS
AVREF
7
10
-100VNL
R193 6.04K
C142 47pF
AOCSET
8
9
ADT
R160 100 R113 4.99K C109 22uF
1
3 1
D110 1N5819
4
2
SPKR_A_GND J106A TWIST LOCK SPEAKER
CLIP_IND_A
R129 6.81
1
D111 1N5819
4
CHASSIS
R123
7
+ IC104-B LM393
5
CHASSIS
R120 10uF 82.5K
ACOMP
R107 6.19K R112 620
IC100 98-0497
C121 1uF
2
R133 6.81
2
R170 22 R171 22
R172 22 R173 22
R174 22 R175 22
R176 22 R177 22
2
1.6K
CHASSIS
6
R139 Q107 CEN1233 C124 .47uF 10
1 3
1 1 3
R125 1M R146 4.99K
2
CHASSIS
D122
1 SHUT_DOWN
2 1
Q103 N-CHANNEL
1
Q101 N-CHANNEL Z102 18V
2
C125 0.1uF R142 10K
C107 0.1uF
D101 RS3GB
2
1N4148A
CHASSIS AINPUT TEMP_A -18V AFAN_DRV 2 4 6 8 1 3 5 7 9 ACSD +18V +18V -18V CHASSIS 1
R108 3.48K
-18V 1 OV_SHUT_DOWN CHASSIS
1
D100
2 2
D121
R110 2.67K Q106 CEN1232
3
Z103 18V
2
R134 10K
R130 10K
C126 2200uF
+
CHASSIS
1N4148A R118
2
1N4148A D115
1 1
ACTIVE_A 10 -18V
D112
2 A-100V+14.65 +18V
J100 R167 100K 100K R116 R168
TEMP_A
+18V
2
1N4148A R115
MURS160 IC103 LM317 4.99K
BIAS_IN 3
C110 .47uF
1
D105 MURS160
-100VNL
1 2 4 2
+18V
3.32K + R1014
2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 5
IN
R1015 150
OUT1+ CHASSIS OUT2+ CHASSIS TEMP_B -18V ACTIVE_B
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 OUT1CHASSIS OUT2CHASSIS TEMP_A ACTIVE_A CLIP_IND_B SIGNAL_B SHUT_DOWN
1
7
R127 182
OUT OUT ADJ
1
Z106 6.2V R161 4.99K
2 CHASSIS
IC101-B LM358 R186
A$$$17425 3
6
R140 10
R141 10
1
Q110 MMBTA64LT1 R149 249
1 1
150
LED6 BACK LIGHT
LED7 BACK LIGHT
LED8 BACK LIGHT
LED9 BACK LIGHT
LED10 BACK LIGHT
CHASSIS
LED1 BACK LIGHT
LED2 BACK LIGHT
LED3 BACK LIGHT
LED4 BACK LIGHT
LED5 BACK LIGHT
Z105 39V
2
C130 22uF
Z107 6.2V
2 3 OV_SHUT_DOWN DC_A_B
CLIP_IND_A SIGNAL_A DC_A_B +18V CHASSIS -18V
2.2K
Q109 MMBTA13
2
CHASSIS 2
D116 1N4003
1 1 Vout
8 +Vs
2 3 5 6
C118
8 8
+ C100 + +
C128 220uF
R150 2.67K C129 R163 249
R162
2
+18V +30V
R165 2K
3
D33 1N4148A
1 $$A9867
R1016
2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1
R1017 150
-
-
+30V
R2000
-30V
AVAA
C
150
J1 33719148
N/U R159 22.1K
2
IC102 LM35 D117 1N4003
GND 4
7 4
4
IC101-C LM358
IC104-C LM393
22uF C101
-100VNL 1
C
R1008 2.2K
LED15 BACK LIGHT
LED11 BACK LIGHT
LED12 BACK LIGHT
LED13 BACK LIGHT
LED14 BACK LIGHT
CHASSIS
LED20 BACK LIGHT
LED16 BACK LIGHT
LED17 BACK LIGHT
LED18 BACK LIGHT
LED19 BACK LIGHT
Z104
2 1
Q108 MMBT5551
2
1
-18V
D120
1 2
R103 100K 1 2
R151
CHASSIS
R166 D46
2 1
CHASSIS
18V
R164
1N4148A
1.21K
R152 10
CHASSIS
1N4148A
OC2_C
IC101-A LM358
+
3
CHASSIS
R185 10K TR100 MAC08BT1G
4
2
-18V
3
1
R260 NOT_USED C26 1000uF
+18V +18V
+
C19
R2011 221K C222 R2107 R2108
R285 10K
CHASSIS
R1002 10
R300 10
499 2.2uF 7 6
470K
R200 + IC8-B 2082
5
R219 750 C203 100pF
R201
B-100V+14.65
93.1K
CHASSIS +18V
750
+100VNL
C1000 1uF +
8
C1008 1uF
8
R2105 6.04K C241
1
+
D203 MURS160
2
C213 .47uF R217 62K R236 10 R221 2.21
CHASSIS
1 1
D209 1N5819
4
4 CHASSIS
4 CHASSIS
47pF
CHASSIS
R238 10
-
-
R232 6.81
2
4
R228 6.81
2
+ R243 10K
C1001 1uF
IC6-C 2082
C1009 1uF
IC8-C 2082
D208 1N5819
1 3 1 3
C227 2200uF D202 RS3GB
1
R291 6.04K R290
OUT2+ 6
R211 620 C211 R205 4.99K R206 10K
1
2
3
Q202 N-CHANNEL R235 10K R231 10K
Q200 N-CHANNEL B/W
CHASSIS
2
3 1
7
R202
10uF
+18V
R204 10
7.5K R1003 10 R301 10
OUT25
R292 7.5K
+ IC6-B 2082
Z200
2 1 BVAA 1 16 BCSH 4
2
Q205 CEN1233 D204 1060E
2
W/B
2 1
R226 C215 82.5K 1nF
C212 10uF
6.2V
4 CHASSIS 2 15 BVB
L201 18.5uH
3
B
R293 6.04K
-18V -18V
C242 47pF R244 4.99K C216
BCLIP
R237
BIN 3 14 BHO 1
C220 1uF
3
1 2 1 BOUTPUT 4
B
R247 22 R248 22 R253 22 R254 22 R255 22 R256 22 R257 22 R258 22 C214 .47uF
10
BCLIP 4 13 BVS
C208 22uF Q204 CEN1232
D206 MURS160
2
L200 18.5uH
3
R124
1 CLIP_IND_B
+ IC204-A LM393
3
1.6K
CHASSIS
2
1nF C217 R214 1nF 3.48K R222 R245 1.65K 47.5K C219 1uF
BCSD
5
12
BVCC
R209 4.99K
Z201
1 2 BVSS 6 11 BLO
C214A N/U D207 MURS160
1
6.2V C204
C206 0.1uF
C205 0.1uF
BVREF
7
10
-100VNL
BOCSET
8
9
BDT 3 1
D210 1N5819
4
2
+
7
5
CHASSIS
R220 10uF 82.5K
BCOMP
R207 6.19K R212 620
IC200 98-0497
R213 4.99K
C209 22uF
1
R229 6.81
1
D211 1N5819
4
CHASSIS
C221 1uF
2
R233 6.81
2
R270 22 R271 22
R272 22 R273 22
R274 22 R275 22
R276 22 R277 22
CHASSIS
2
IC204-B LM393
6
R239 Q207 CEN1233 C210 .47uF 10
1 3
1 1 3
R225 1M R246 4.99K
2
CHASSIS
Do Do Do Do Do Do
not not not not not not
install install install install install install
R2000 C23 30330182 R26 & R260 30200443 C57 30320322 C114A & C214A 30330148 J100 & J200 33717254
D222
1 SHUT_DOWN
2 1
Q203 N-CHANNEL
1
Q201 N-CHANNEL Z202 18V
2
C225 0.1uF R242 10K
C207 0.1uF
D201 RS3GB
2
R188
SIGNAL_A SIGNAL_B
R288
CHASSIS
1N4148A
2 4 6 8 1 3 5 7 9 BCSD +18V +18V -18V CHASSIS 1
2.2K
3
2.2K C136 10uF
3 BINPUT
R208 3.48K
-18V 1 OV_SHUT_DOWN CHASSIS
1
D200
2 2
D221
R210 2.67K Q206 CEN1232
3
Z203 18V
2
R234 10K
R230 10K
C226 2200uF
+
CHASSIS
1
Q111 MMBT5551 SIGNAL_A
2
1
Q211 MMBT5551 SIGNAL_B
2
C236 10uF
TEMP_B -18V BFAN_DRV
1N4148A R218
1N4148A D215
2 1 1
ACTIVE_B 10
D124
1 2
R189
1
D224
2
R289 249
-18V
D212
2 B-100V+14.65 +18V
+18V 2
J200 R267 100K 100K R216 R268
TEMP_B
1N4148A C140
249
1N4148A C240
1N4148A R215
MURS160 IC203 LM317 4.99K
3
C224 .47uF
1
D205 MURS160
-100VNL
1 2 4 2
1nF
1nF
1
3.32K +
7 5
IN
R227 182
BIAS_IN
OUT OUT ADJ
1
Z206 6.2V
R261 4.99K
2
R187 10K
CHASSIS
R287 10K
CHASSIS
IC201-B LM358
6
R240 10
R241 10
1
Q210 MMBTA64LT1
1
CHASSIS
Z205 39V
2
C230 22uF
R249 249
1
Z207 6.2V
2
3
AOUTPUT
BOUTPUT
R286
B$$$17425 3
2.2K
Q209 MMBTA13
2
CHASSIS 2
R262
8 +Vs 1 2 3 5 6
C218
8 8
+ C200 + +
C228 220uF
D216 1N4003
1 BVAA Vout
R250 2.67K C229 R263 249
R265 2K R266
3
2
IC202 LM35 D217 1N4003
GND 4
-
4
4
-
7
IC201-C LM358
IC204-C LM393
22uF C201
-100VNL 1 CHASSIS
R259 22.1K
Z204
2 1
Q208 MMBT5551
2
1 CHASSIS
A
A
FAN_DRV 1
D220
2
R203 100K 1 2
R251 18V
CHASSIS
R264
1N4148A
1.21K
R252 10 TRIP 111V
CHASSIS
CREST AUDIO INC.
TITLE:
IC201-A LM358
+
3
-18V
DRAWN:
DATED:
IPR 3000 DSP Amplifier Section
11/07/11
CHECKED: DATED: CODE: SIZE: DRAWING NO: REV:
Matches PCB:
DATED:
D
RELEASED:
DATED: SCALE: SHEET: 2 OF 2
6
5
4
3
2
LTR
1
REVISION RECORD ECO NO: APPROVED: DATE:
S+16.5V
V REF.
TP4
S+16.5V
C45
OC1_C
NEU1 NEUTRAL NEU2 NEUTRAL
NEUTRAL
NEUTRAL1 1
S+5V
R60 10
R63 3.48K
2
R87 10
R67 10
.47uF C42 2.2nF R49 62K
1 2 1 2 2
D42 1N4003 D52 D49
2 2 1 2 1
R65 1K TP35 Q8 R69
1 3 16
R48 62K C44 1uF SCR1
C23 3.3nF
C40 .47uF
1 3
1N4003
1N4003
1
R62
1
C41 1uF V REF. C49 .1uF C50 .1uF Z2
15 4 3 CHGND
D43 1N4003 C22 47uF D50 D51
1 1 1 2 2
1K C46 .1uF C18 R59 511
RL1-B T9A-24V
4 3 CHGND
INV NI SYNC OSC.OUT Ct Rt DISCH SS IC15 UC3525
Vref Vcc OUT B Vc GND OUT A SHTDWN COMP
1K
2
D
1 GND
R50 62K TP1 DRIVE B
DRIVE_B
T3 6mH C43 2.2nF R33 62K
T4 6mH
C57 NOT USED
1
2
1
2
2
1N4003 SRG1 5 OHMS SRG2 5 OHMS
1N4003
2
D44 1N4003
D
OC1_A S+330V
3
14
R53 1K
V+ 8
4
13
BRKR1 FROM_RELAY
BREAKER_RETURN
LINE2
R4
5 12
4.7K
2 TRIG DIS 7 6 11
R64 10K
6
R70
7 10
TP2 DRIVE A
DRIVE_A
R1000 10 R9 J5 22-10-7028 10 D6 S
3 4
C78
C25
3
OUT
THR
4
5 4 RS CV 8 9
D12
1 2 1
C6 .47uF C4
R8 62K
R15 62K C12 2200uF + C11 2200uF +
1
1 LINE3
PAD1
R47
R52 10K C53 1nF R71 12.1K
IC14
Q5 MTP2P50EG C55 .1uF C56 1uF C31 1uF R72 D
2
5819
2 1
1
2
1
R7 TP38
1 2
Q4 N-CHANNEL
3
3
2
3
2
5819 D1 5819
1
C47 .1uF
R2 4.99K C48 470pF C54
SGND
G
1 S+28V
D26 SMBJ14A IC17
2 S+16.5V
Q1 N-CHANNEL
3
R58 22
R13 22
R68 22 C13 2200uF
+
C10 2200uF
+
NEUTRAL2
B1
4
B2
4
TP3 D3
V_IN 1
C1
1 3
IN
OUT GND
3
V_OUT
2
IN
OUT ADJ
1
2 1
D13
2
120/240 VOLT LINK C16
4
NEUTRAL3
C36
R12 62K
R16 62K
LUG1 120/240 LINK_
LUG2 120/240 LINK
SGND
5819 R3 12.1K C75 10uF C3 220uF + C32 .1uF
S+5V
10uF D8 R5 511 R55 6.19K
1 2 4
5819 R1001
1
IC13 LR645N3 18 V
SGND S+16.5V 2
2
C5 10 Q3 N-CHANNEL
3
5819 R11 R10 10
1 1
R302
2 1
D17 5819
1
ADJ
R36 R73 4.99K R35 10K
2
C77 2.2nF Q2 N-CHANNEL
3
2.21K
R18 Q6 MMBTA64LT1
J2 22-10-7028 R76 12.1K R17 1K
1
C2 .1uF
D7 SMBJ14A C34 220uF +
2 5
R57 22
R14 22
R80 22
+30V +18V
OC2 MOC8050
6
2
D41 W3 JUMPER THROUGH T1
1 2
R54
1
W8
CHGND1
SCR3 MURS160
4
R75 TP6 1K
TP5
3
3
+
1 1
D34
2
S+330V
R40
2 2 S+16.5V
Z1 6.2V
1
4
R6 5.76K
C21 .1uF C79 .47uF
R1026 2.2 C80 .47uF
1 2
R1027 2.2 L1
3 4
R1028 2.2
R1029 2.2
R1030 2.2
1 14 15 SECONDARY_1
3
+ D38 MURB1620CT
1 16 3
IN
C33 220uF C76 10uF R1007 3.32K
OUT OUT
2 4
2
IC20-A LM393
5819
C9 2.2nF
2 3
SHUTDOWN 1
D16 1N4148A
3
C38 220uF
+
ADJ 1 IC18 LM317 R1006 C28 249
R74 100K
5
C64 470pF
C65 .1uF
R77 4.99K
2
D28 1N4148A
1 1
R51 R19 10
S+16.5V
2.7uH
4 17 18 19 CHASSIS
R1013 0.2 R1012 0.2
1 21 22 SECONDARY_2 1 CHASSIS
+
7
Q10 MMBT5551
2
TP36 C66
S+16.5V 1 14
5 S+16.5V 6
6
IC20-B LM393 R44 10K
C39 220uF
+
+
C27 220uF 22uF D23
2 1
C
5
R45 TP7
8
R37 10K
D10
2 1 2
LO
20 SGND 7 8 9
C
-18V
COM
VSS
13
SGND DRIVE_A
SGND DRIVE_A DRIVER_SHUTDOWN DRIVE_B S+16.5V SHUTDOWN
SGND
MURS160 LM393 IC10-A
2 3
+ +
7 6
D18
1 2
VCC
LIN
12
DRIVER_SHUTDOWN DRIVE_B
1
IC12-B LM393
DRIVER_SHUTDOWN 1 4
C20 .1uF IC10-C LM393
C14 .1uF
4 SD 11 1 1 RES_1
D47 MURS160
2
2
D48 MURS160
4 2 IN
MURS160
S+16.5V
3
+
1N4148A
10
12
IN
OUT
3
D19
2
R43
Z6 18V R39 100K
2
C15 10uF
5 VS HIN
10
CURRENT_LIMIT -30V
6 2
VB
VDD
9
ADJ 1 IC7 LM337 C67 10uF
R1009 249
5819
S+16.5V S+16.5V
D45 MURS160
7 HO 8 11 13
R24 TP37 R89 TP10 10 R38 7.5K
R41
CURRENT_LIMIT
IC11 30402110
T2
SGND
R1010 3.32K
C35 22uF
S+28V
R42 10
R46 10
R84 R20
SGND 3
R86 10K
1 GND V+ 8
R88
R26
R56 10K
R25
R28
7
R32 100K
1 1 1 SRG_RLY
1
CHASSIS
+
1 2 TRIG DIS
C51 22uF
2
D11 5819 D15
7 1 2 2 2 3
D14 5819
2 1 5
D20 MURS160
2
D29 MURS160
+100VNL 2
IC12-A LM393 CURRENT LIMIT
3 OUT THR 6
C62 .1uF C37 1uF C61 .22uF C60 .1uF C63 1uF C68 1uF
5
8
8
T1 CURRENT LIMIT
R82
1
D2
2
R22 0.2 D31 FFB20UP30DN
1
4
4
+ C8 .1uF 4
+ C52 .1uF 4
5 4 RS CV
R83 2.21K
R85 4.99K
C58 .1uF
C59 120pF
R27 12.1K
+ IC10-B LM393 U.V.SHUTDOWN
R30
6
IC16
1N4148A
C17 1nF
R1004 10
R1 10
RL1-A T9A-24V
6
10
1
MURS160
D24 FFB20UP30DN
3 1 3
R66 10K
IC20-C LM393
IC12-C LM393 D36
LINE2 2 1
SURGE RELAY
2
D27 MURS160 C7 10uF C24 10uF
1 1
SGND
D30 MURS160
2
D35 MURS160
2
4
4 CHASSIS
MURS160
SGND SGND
D32 FFB20UP30DN
1 3 1 3
D25 FFB20UP30DN
R61 10K
R29 62K
SGND
-100VNL SHUTDOWN
BVS
BVS
+100VNL
+100VNL
AVS
AVS
+100VNL
+100VNL
R31 62K
1 1
BIAS_IN
D37
S+16.5V 1 2
R34 4.99K
OC2_A
+30V
IC5 LM317 R78
3
+18V
D4 MURS160
2 4 FAN 1 2
2
D5 MURS160
+
2
C71 220uF
+
C73 220uF
1N4148A
B
SECONDARY_1
HS200 HEAT SINK
SECONDARY_2
HS201 HEAT SINK
+100VNL
HS202 HEAT SINK
+100VNL
HS203 HEAT SINK
+18V
HS100 HEAT SINK
HS101 HEAT SINK
HS102 HEAT SINK
HS103 HEAT SINK
C69 22uF
IN
750
OUT OUT ADJ
1
R79 J8 FAN 0.2
1 1 2 1
B
C72 220uF + C74 220uF +
OC2_C
C29 10uF
1 1 1 1
D40 1N4148A
2
R97 4.99K
1
R98 4.99K D9 MURS160
1 2
R96 10K
Z5 18V
2
Q12 MMBTA64LT1
D21 MURS160
2
CHASSIS RES_1
CHASSIS4
HS1 HEAT SINK
RES_1
HS2 HEAT SINK
S+330V
HS3 HEAT SINK
S+330V
HS4 HEAT SINK
HS9 HEAT SINK
FAN
P200 PCB_PAD6 FD1 FD2
P100 PCB_PAD6 FD3
P5 PCB_PAD6 FD4
P2 PCB_PAD6 FD5 FD6 C30 220uF +
R21 6.81
+100VNL CHASSIS4 FAN_DRV 3
+
1 3 -100VNL
R93
2
IC3-A LM393
100K FIDUCIAL HS5 HEAT SINK KH2 KEYHOLE HS6 HEAT SINK KH5 KEYHOLE KH6 KEYHOLE HS7 HEAT SINK KH7 KEYHOLE KH8 KEYHOLE HS8 HEAT SINK KH3 KEYHOLE HS10 HEAT SINK FIDUCIAL FIDUCIAL FIDUCIAL FIDUCIAL FIDUCIAL
R99 10K
+18V
R1005 6.19K
IC3_Z5
R23 4.99K
R90 4.32K
R94 2.21K
OC1_C 5
2
TP8
CHASSIS 8
CHASSIS
5
+
7
R81 2K
6
OC1 MOC8050
4 1
6
IC3-B LM393
TAB1
TAB4
TAB7
TAB8
TAB10 C70 22uF
+
OC1_A
TAB
TAB
TAB
TAB
TAB 4
IC3-C LM393
R95 2.21K
CHASSIS
R92
1 CHASSIS
D22
2
R91
OV_SHUT_DOWN
TRIP 135V 100K
-100VNL
1N4148A
O.V. = +/-135VDC
CHASSIS
A
A
CREST AUDIO INC.
TITLE:
DRAWN:
DATED:
IPR 3000 DSP Power Supply
CODE: SIZE: DRAWING NO: REV:
CHECKED:
DATED:
QUALITY CONTROL:
DATED:
D
RELEASED:
DATED: SCALE: SHEET: 2 OF 2
ECN22735
06/07/11 Deleted R2000 30200174
ECN22777
07/22/11 Changed D101, D102, D201, D202 from 30418272 to 30419246 07/22/11 Changed Q105, Q107, Q205, Q207 from 30418774 to 30419245 07/22/11 Changed Q104, Q106, Q204, Q206 from 30418773 to 30419244
ECN22842
09/02/11 Changed D108, D109, D110, D111, D208, D209, D210 & D211 from 30418328 1N4148 to 30419248 1N5819HW
ECN22908
11/01/11 11/01/11 11/01/11 11/01/11 Changed Changed Changed Changed C61 from 30300130 1uF to 30300069 .22uF R88 from 30200443 2.2 Meg to 30200338 5.62Meg R1014, R1015, R1016, & R1017 from 30200238 22 ohm to 30200388 150 ohm R74 from 30200174 10K to 30200194 100K