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XLS602, XLS402, XLS202 Channel A Power Amp only shown 'A' suffix on component identifier indicates Channel A These can be mapped directly on to Channel B by changing the suffix to 'B' unless otherwise specified. All Diodes are 1N4148 unless otherwise specified All Zener diodes are 400mW All resistors are 1/4 W metal film unless otherwise specified All BF422 and BF423 are Pillips or Toshiba. DO NOT use Carsem (CBF)

! up to +95Vdc +HT2

+HT1

R25A 27K

R29A 470R

PF750 H/S

C16A 100n
100V

Q12A MJE5731A Q11A BF422
Q15B

NOTE1 GB602 GB402 GB402 NOTE2 GB402

R14A/B 100k 33k 22k

R26A/B, R27A/B 20k 20k 43k

R55A/B 3k3 1W c/f 2k7 1W c/f 2k7 1W c/f

R58A/B, R24, R25 6k8 1W c/f 5k6 1W c/f 4k7 1W c/f

ZD5A/B, ZD6A/B 47V 30V 47V

R60A, R60B 75R 120R 150R

ZD2 10V 9V1 9V1

BR1

.095 V
D1A

GBPC5006 50A 600V GBPC5006 50A 600V SB356 35A 600V

R23A 47R

0.180 V

R24A 47R Q7A BF423

NPN Main H/S Q16B Q13B Q14B

1.2 V
D2A

R13A 220R Q6A BF423 Q3A BF423 D8A R26A NOTE1 Q22A D11A R60A NOTE1 ZD3A 2V7 R55A NOTE1 R30A 5K1 R39A 820R

Q16A MJ15024

Q15A MJ15024

Q14A MJ15024

Q13A MJ15024

D5A 1N4004

90 V
Not Fitted: R37A/B, R42A/B, Q14A, Q20A, R45A/B, R50A/B, Q13B, Q19B, C1, C4

R14A NOTE1

R12A 10k

C3A 330p

R38A 820R R37A 820R C2A 4n7 R36A 820R
To output board

ZD7A 18V

63V BC184L

GB202

Not Fitted:

R37A/B, R42A/B, R39A/B, R40A/B, Q14A, Q20A, Q16A, Q18A,

R45A/B, R50A/B, R47A/B, R48A/B, Q13B, Q19B, C1, C2, Q15B, Q17B,

CN2A/1 CN2A/2 CN2A/3 C8A 33p C7A 10u R8A 1k

R10A 100R

0.120 V

R11A 100R

R18A 39k R57A 3k3 C20A 10p 63V C10A 10u

ZD5A NOTE1 R35A 100R R47A 0R47
3W w/w

CN1A FASTON

C4, C5

0.6 V 1k
R9A 39k Q1A Q2A 2SA872 R17A 1k C11A 100u C15A 1u

R22A

R56A 22R ! C21A 4n7 !

!

R46A 0R47
3W w/w

!

R45A 0R47
3W w/w

!

R44A 0R47
3W w/w

HDR2/3 LK1 0 Ohm HDR2/6 HDR3/1 HDR3/2 LK2 0 Ohm LK3 0 Ohm LK4 0 Ohm CN1 26PIN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

HDR2/4

HDR2/2

HDR2/5

Q8A BC184L
NPN Main H/S

C9A 10u R59A NOTE1 ZD4A 2V7 D9A

ZD6A NOTE1

R48A 0R47
3W w/w

!

R49A 0R47
3W w/w

!

R50A 0R47
3W w/w

!

R51A 0R47
3W w/w

D13A 1N4004 LED1A RED LED2A GREEN

R43A 820R C1A 4n7

1.75 V R21A
360R C14A 100n
100V

R42A 820R R41A 820R

PEAK A

R20A 20k
STAR

Q21A BC214L R27A NOTE1 R33A 5K1 R40A 820R Q17B
Q18A

FACING LDR ON I/P BOARD

HDR3/3

HDR3/4

HDR3/5

CN2A/1

C12A 33p
63V

C13A 10p Q4A Q5A
63V

D7A

Q18B
Q17A

Q19B
Q20A

Q20B
Q19A

CN2A/2 CN2A/3

Channel B

BF422 D3A D4A

Q9A BF423 Q10A TIP50/47 R28A 27K R34A 470R

MJ15025

MJ15025
PNP Main H/S

MJ15025

MJ15025

D6A 1N4004

R58A NOTE1

R15A 1k
Channel B

R16A 1k

R19A 200R

1.7 V

1.2 V

PF750 H/S

! up to -95Vdc
R52A 180K C17A 100n
100V

CN2 26PIN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

R52B 180k

to junction of R18B and FASTON CN4B

-HT2

-HT1

R53A 20k

R53B 20k HDR2/1

! up to +95Vdc +HT2 +HT1

R24 NOTE1
GREEN to output board +18Vdc

SEC1/6 D17 1N4004
! up to 65Vac

0V1A FASTON

0V1B FASTON

ZD3 18V

C19 47u

100V

C7 4700u
100V

C5 4700u
100V

C3 4700u
100V

C1 4700u
100V

C12 470u
250V -

AC Note1

BR1

C13 470u
250V

SEC1/2 SEC1/5
C/T

STAR

+ AC

STAR

C15 470u ZD4 18V C20 47u
250V 100V

C14 470u
250V

C8 4700u
100V

C6 4700u
100V

C4 4700u
100V

C2 4700u
100V

SEC1/3
! up to 65Vac

CHASSIS
-18Vdc

R25 NOTE1

D18 1N4004

HDR3/6
-HT2 -HT1 ! up to -95Vdc Main2 3 6 RED 2 5

R2 47k

R3 47k

220/110
BLACK

SUNON
KDE2412PTS1-6A
-24

1

4

240/120

24V
2 CN3 1 red black

R23 1k

HDR1/3 C21 100n R16 180k HDR1/2
2

D10 R12 1k R14 2k2

R9 27k

R8 4k7 LED1 green

D1

!! Live Mains

+24 Vdc
IC1A TL074
3 1 2 4

Q2 BD135 R20 10k R21 51R
2.5W

-2 Vdc IC1D +20 Vdc
14

R18 100k IC1C
8

NPN Main H/S

R5 10M D2 D4 D3 D6 C9 100u
16V

RLY1 RELAY
1

-2 Vdc +20 Vdc
IC1B
7 6 5

R10 680k

POWER

R4 1M R1 10k

D13 1N4004

SEC1/1

RLY1 R22 47R 23W PTC1
! ! !

BLUE

+24Vdc
C17 470u D11
35V

18Vac
D14 1N4004 D15 1N4004 SEC1/4

NEUTRAL

9 10

13 12

TH1 LM35DZ

D8

Q1 BC214L

TL074

TL074 R26 2M R19 150k

R15 3k9 R27 220R C23 220n LED2 yellow
PROTECT

R17 20k

Q3 BC184L

D9

R11 10M ZD2 C16 4u7
16V

11

+2.5 Vdc

R13 10k

TL074

+20 Vdc +5.6 Vdc
R6 10M D7

C22 2n2

PTC2
YM120D3 70N10 Bowthorp

470u C18
35V

C10 4u7
35V

D12

-24Vdc

note1

D5

C11 100n
35V

D16 1N4004

18Vac

Crown Audio 1718 W. Mishawaka Rd. Elkhart, IN 46517 574-294-8000 www.crownaudio.com

XLS602, XLS402, XLS202

D19

ZD1 5v6

Size A1

FCSM No.

DWG No.

Rev

R7 1k2 1W
Scale

C1071-6
Sheet

2