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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