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R82 10.0 GND 3 R56 2 2 R85 10.0 R22 6 R8 5 4580 R26 10.0 Q13 2907 2 3 1 D2 4148 R133 2.87K -13.5 D1 4148 Z2B 7 10.0 10.0 R88 10.0 R90 10.0 R84 10.0 R83 10.0 R89 10.0 R91 10.0 R86 1 R151 22pF R157 10K 6 6 R158 5 4 4580 CW GND GND Z1B 7 R1B 100KA 5 22/25V 1K R28 100K C42 10K C46 22/25V R160
+

R145 15K +13.5 1 R185 4580 5.11K -13.5 G 3 -13.5 20K C15 Q1 2222 GND +13.5 8 D37 SIG PRES 806 22/25V 330pF R54 -13.5 C41 R42 C27

C44 R43 806 22/25V GND

C28 330pF R55 20K C16 22pF 1 C43 22/25V 3 R1A 100KA 1 2 C45 R9 R116 2 3 +13.5 8 Z2A 1 4580 -13.5 10.0

J4 ST NS NT +13.5 3

GND

D25 4 5817 D26 200K 5817 C81 GND 1/50V GND

Z1A

20K R57 20K

2

Q2 2222

CHANNEL 1 OUTPUTS

R130

R131

10.0

10.0

R117

R118

10.0

10.0

J5 ST NS TH

8 5 J1A

DIRECT INPUT 1
1 2 3 1 2 3 GND
STEREO (SHIP) MONO STEREO (SHIP) MONO

7 9 4 6 3 2 1

R132

R270

LEVEL

LEVEL

10K R159 10K J22A J23A GND

22/25V 1K R29 100K CW GND GND

D3 4148 4 D4 4148 R134 2.87K 1 2 3 Q14 2907

R119 10.0

10.0 R120

10.0 R121

GND

10.0

10.0

-13.5 -13.5

-13.5

R87 10.0 GND 3 R60 2 4 R152 R161 10K 6 R162 5 4580 R163 10K GND 1 2 3 1 2 3
STEREO (SHIP) MONO STEREO (SHIP) MONO

R146 15K +13.5 1 R186 4580 5.11K -13.5 G -13.5 R164 10K 6 R2B 100KA 4 C52 22/25V 7 5 C48 CW R10 6 5 GND 8 D38 SIG PRES 22/25V 806 -13.5 R44 C47

C29 330pF R58 20K C17 22pF 1 R78 10.0 Z4B 7

C50 R45 22/25V 806 +13.5 3 GND 2 Q3 2222

C30 330pF R59 20K C18 R122 10.0 R93 10.0 R124 10.0 R95 R123 10.0 R94 10.0 R125 3 10.0 R96 R2A 100KA 1 C49 22/25V 2 C51 R11 22pF 1 R110 2 4580 3 D5 4148 +13.5 8 Z4A 1 4580 -13.5 10.0

J6 ST NS NT +13.5 3

GND

D27 5817 D28 200K 5817 C82 GND 1/50V GND
+

Z3A

20K R61 20K

2

Q4 2222

CHANNEL 2 OUTPUTS

R202

R203

10.0

10.0

R111

R112

10.0

10.0

J7 ST NS TH

8 Z3B 5 J2A 10K

DIRECT INPUT 2
J24A J25A GND

7 9 4 6 3 2 1

R204 1K 22/25V R30 100K R79

R205

LEVEL

LEVEL
GND GND R135 2.87K -13.5 D6 4148 2 3 10.0 1 Q15 2907 10.0 10.0

22/25V CW GND

1K R31 100K GND -13.5

D7 4148 4 D8 4148 R136 2.87K -13.5 1 2 3 Q16 2907

R113 10.0

10.0 R114

10.0 R115

GND

10.0

10.0

-13.5

R92 10.0 GND 8 3 R64 2 20K R65 20K 5817 D30
+

R147 15K +13.5

-13.5 D39 SIG PRES

C53

R46 22/25V 806

C31 330pF R62

C56 R47 22/25V 806 +13.5

C32 330pF R63

J8 ST NS NT +13.5

3

2 4 R153 R165 10K 6 R166 10K R167 10K 5 Z5B 7 4580 R168 10K 6 C58 22/25V R3B 100KA 5 CW C54 R12 6 5 Z6B 7 4580 D9 4148 22pF 1

Q5 2222 R80 10.0

3

D29

Z5A

1 R187 4580 5.11K -13.5

G

GND -13.5

GND 20K C19

GND 20K C20 R126 10.0 R98 10.0 R128 1K 22/25V R32 100K R81 10.0 R100 R127 10.0 R99 10.0 R129 10.0 R101 3 R3A 100KA C55 22/25V 2 10.0 1 GND D10 4148 2 3 GND Q17 2907 10.0 10.0 CW C57 R13 22pF 1 R103 2 3 +13.5 8 Z6A 1 4580 -13.5 10.0

2

Q6 2222

CHANNEL 3 OUTPUTS

R206

R207

10.0

10.0

8 5 J3A

DIRECT INPUT 3
GND SH. 2 & SH. 3 SH. 2 & SH. 3 A B

7 9 4 6 3 2 1 J26A 1 2

200K 5817 C83 GND 1/50V GND

R104

R105

10.0

10.0

J9 ST NS TH

R208

R209

GND

LEVEL

4

1

LEVEL

22/25V GND J27A 3 1 2 3
STEREO (SHIP) MONO STEREO (SHIP) MONO

1K R33 100K GND R137 2.87K -13.5
ACTION:

D11 4148 4 D12 4148 GND -13.5 -13.5 R138 2.87K 1 2 3 Q18 2907

R106 10.0

10.0 R108

10.0 R109

10.0

10.0

-13.5

CH 3-6 IN/OUT 106674-2.SCH H:\HC6\106674-1.SCH 27-Mar-2003

MSTR IN/OUT & PWR SUP 106674-3.SCH
DRAWN BY:

CH. 1-3 IN/OUT HC 6
SKH
CHECKED BY:

RJ

10802 47th Avenue West Mukilteo WA 98275-5098

SHEET:

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106674

R97 10.0 GND 3 R68 2 2 R246 10.0 R210 6 R14 5 4580 D13 4148 1 D14 4148 2 3 R139 2.87K -13.5 Z8B 7 R213 10.0 Q19 2907 10.0 R211 10.0 R248 10.0 R214 10.0 1 R154 22pF R169 10K 6 6 R170 5 4 4580 CW 10K R171 10K GND GND GND 1 2 3 1 2 3
STEREO (SHIP) MONO STEREO (SHIP) MONO

R148 15K +13.5 1 R188 4580 5.11K -13.5 G 3 -13.5 20K C21 Q7 2222 R247 10.0 R212 10.0 R249 10.0 R215 10.0 R172 10K C60 1K 22/25V R34 100K C64 22/25V 7 R4B 100KA 5 GND +13.5 8 D40 SIG PRES 22/25V 806 330pF R66 -13.5 R48 C59 C33

C62

R49 22/25V 806 GND

C34 330pF R67 20K C22 22pF 1 C61 22/25V 3 R4A 100KA 1 2 C63 R15 R228 2 3 +13.5 8 Z8A 1 4580 -13.5 10.0

J13 ST NS NT +13.5 3

GND

D31 4 5817 D32 200K 5817 C84 GND 1/50V GND
+

Z7A

20K R69 20K

2

Q8 2222

CHANNEL 4 OUTPUTS

R258

R259

10.0

10.0

R229

R230

10.0

10.0

J14 ST NS TH

8 Z7B 5

J10A

DIRECT INPUT 4
J28A J29A GND

7 9 4 6 3 2 1

R260

R261

CW

LEVEL

LEVEL

22/25V GND

1K R35 100K GND -13.5

D15 4148 4 D16 4148 R140 2.87K -13.5 1 2 3 Q20 2907

R231 10.0

10.0 R232

10.0 R233

GND

10.0

10.0

-13.5

R102 10.0 GND 3 R72 2 4 R155 R173 10K 6 R174 5 4580 R175 10K GND 1 2 3 1 2 3
STEREO (SHIP) MONO STEREO (SHIP) MONO

R149 15K +13.5 1 R189 4580 5.11K -13.5 G -13.5 R176 10K 6 R5B 100KA 4 C70 22/25V 7 5 C66 R16 6 5 GND 8 D41 SIG PRES 22/25V 806 -13.5 R50 C65

C35 330pF R70 20K C23 22pF 1 R216 10.0 Z10B 7

C68

R51 22/25V 806 +13.5 3 GND 2 Q9 2222

C36 330pF R71 20K C24 R250 10.0 R217 10.0 R252 10.0 R220 R251 10.0 R218 10.0 R253 3 10.0 R221 R5A 100KA C67 22/25V 2 C69 R17 22pF 1 R234 2 4580 3 D17 4148 +13.5 8 Z10A 1 4580 -13.5 10.0

J15 ST NS NT +13.5 3

GND

D33 5817 D34 200K 5817 C85 GND 1/50V GND
+

Z9A

20K R73 20K

2

Q10 2222

CHANNEL 5 OUTPUTS

R262

R263

10.0

10.0

R235

R236

10.0

10.0

J16 ST NS TH

8 Z9B 5 J11A 10K

DIRECT INPUT 5
J30A J31A GND

7 9 4 6 3 2 1

R264 1K 22/25V R36 100K R219

R265

CW

1

LEVEL

LEVEL
GND GND R141 2.87K -13.5 D18 4148 10.0 1 2 3 Q21 2907 10.0 10.0

22/25V CW GND

1K R37 100K GND -13.5

D19 4148 4 D20 4148 R142 2.87K -13.5 1 2 3 Q22 2907

R237 10.0

10.0 R238

10.0 R239

GND

10.0

10.0

-13.5

R107 10.0 GND 8 3 R76 2 20K R77 20K 5817 D36
+

R150 15K +13.5

-13.5 D42 SIG PRES

C71

R52 22/25V 806

C37 330pF R74

C74

R53 22/25V 806 +13.5 3

C38 330pF R75

J17 ST NS NT +13.5 3

D35

Z11A 4

1 R190 4580 5.11K -13.5 R156 R177

G

GND -13.5

GND 20K C25 22pF 1 R180 10K 6 R178 10K R179 10K 5 Z11B 7 4580 10K 6 R6B 100KA 4 C76 22/25V 5 C72 R18 R222 6 5 Z12B 7 4580 D21 4148 10.0 2 Q11 2222

GND 20K C26 R254 10.0 R223 10.0 R256 10.0 R226 R255 10.0 R224 10.0 R257 3 10.0 R227 R6A 100KA CW 1 C73 22/25V 2 C75 R19 22pF 1 R240 2 3 +13.5 8 Z12A 1 4580 -13.5 10.0

2

Q12 2222

CHANNEL 6 OUTPUTS

R266

R267

10.0

10.0

8 5 J12A

DIRECT INPUT 6
GND SH. 1 & SH. 3 SH. 1 & SH. 3 A B

7 9 4 6 3 2 1 J32A 1 2

200K 5817 C86 GND 1/50V GND

R241

R242

10.0

10.0

J18 ST NS TH

R268

R269

GND

LEVEL

1K 22/25V R38 100K GND J33A 3 1 2 3
STEREO (SHIP) MONO STEREO (SHIP) MONO

R225 D22 4148 GND GND R143 2.87K -13.5 10.0 1 2 3 Q23 2907

LEVEL
10.0 10.0

22/25V CW GND

1K R39 100K GND -13.5

D23 4148 4 D24 4148 R144 2.87K -13.5
ACTION:

R243 10.0 1 2 3 Q24 2907

10.0 R244

10.0 R245

10.0

10.0

-13.5

CH. 4-6 IN/OUT HC 6
DRAWN BY:

H:\HC6\106674-2.SCH

27-Mar-2003

SKH

CHECKED BY:

RJ

10802 47th Avenue West Mukilteo WA 98275-5098

SHEET:

2 of 3

106674

R181 R20 2 CW 3 4580 22/25V -13.5 STEREO S1A 3 2 1 R7B 100KA 5 22/25V R40 100K GND C78 4.42K 6 4 Z13A 1 C77 R196 GND 0.1 3 2 C14 GND 0.1 C109 150pF R23 1K R197 3 R7A 100KA 2 CW C80 5 8 1 Z14A 4 4580 R201 100 -13.5 100 C102 0.1 R198 A 100 SH. 1 & SH. 2 J19 ST NS NT R21 GND R182 10K
MONO

R192 9.09K C39 330pF R193 9.09K GND 4

10K +13.5

C13

8

R200 +13.5

1K

1K

LEVEL

GND

MASTER STEREO INPUTS
STEREO

S1B R183 10K R24 6 5 4580 22/25V 4.42K Z13B 7 C79 J20 ST NS NT R25 GND 9.09K R184 10K GND 1K C40 330pF R195 1K 9.09K R194
MONO

6 5 4

LEVEL

1

22/25V GND

R41 100K GND

6

Z14B C110 150pF R27 1K

7 4580

R199 100

B

SH. 1 & SH. 2

POWER SUPPLY
D45

S2B 2P2T +13.5 4 5 6 +13.5 C1 0.1 C3 0.1

DECOUPLING CAPS

POWER
CT AC AC CT

J21

4004

1 2 3 4 5 6
C101 0.01 GND

C100 0.01

D46 4004 D44 4004

C98 2200/16V

+

C89 2200/16V

+

C90 2200/16V

+

C91 2200/16V

+

C96 2200/16V

+

Y D43 POWER GND GND C92 2200/16V
+

C5 0.1

C7 0.1

C9 0.1

C11 0.1

6P MOD

C93 2200/16V

+

C94 2200/16V

+

C95 2200/16V

+

C97 2200/16V

+

R191 S2A 5.11K 2P2T D47 -13.5 4004 1 2 3

-13.5 C2 0.1 GND C4 0.1 C6 0.1 C8 0.1 C10 0.1 C12 0.1

LB1

LB2

LB3

GND

GND

GND

ACTION:

MSTR STEREO IN/PWR HC 6
DRAWN BY:

H:\HC6\106674-3.SCH

27-Mar-2003

SKH

CHECKED BY:

RJ

10802 47th Avenue West Mukilteo WA 98275-5098

SHEET:

3 of 3

106674