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G

G

ORANGE 100nF 100nF 100nF 100nF 1N4002 1N4002 1N4002 1N4002

C422

G

HA7Z PSU and protection diagram c Cyrus Electronics Ltd 13-Aug-2001

S:\STUART\SERV1486.SCH

VDD
CON407 BLACK CON408 BLUE CON409 RED CON401 WHITE C417 D413 1N4002 C401 22uF 63V R410 22k

PSX_MOD

VDD
R413 820R

LB+
R414 47k R415 820R

RB+
R416 47k Q401 Q402

VDD

AMPIN

THERMAL SENSOR ON @73DEG OFF @69DEG

D421

D414 BAS16

OVER_C
BAS16 C428 1nF R409 560R Q403 Q404

1

3

1

R412 47k R411 4k7

IC401 SFH610-2

IC402 SFH610-2

R467 33k

TH401 33k 2322 640 63333

T405 BC856B

3

R469 100k R470 10k

T412 BC856B

GND_D GND_D

2

4

2

4

PSXO

GND_D

GND_D

GND_D

LB-

GND_D

RB+15V
R465 R428 2k 3k T408 BC846B C429 100nF R468 390R

T411 BC846B R471 100k

CON402 YELLOW 100nF 1N5402 100nF 1N5402 100nF 1N5402 100nF 1N5402 CON403 GREEN CON410

D401

+PSU

FS401 4 Amp fast

+VCC
ST401

+PSU

R417 1R NFR

T406

TIP31

VR402 7815

I/P O/P
R419 7k5 R421 3k3 C402 22uF 63V C404 22uF 63V R422 3k3

+15V

GND_D
ISSue 6 to inclued temperature mods and over voltage detection mods

C418 C415 7000uF 50V

R424 22k

D402

D411 1N4002

GND_PSUR GND_D GND_OP_R GND_IP

T406/407 Use with heat sink

C403 22uF 63V C405 22uF 63V

R430 1k8

C406 100nF

+5V
D422 5V6 POWER SUPPLY 1/12 25V > TRIP > 50V

VDD
R456 3k9

VDD

VDD
R459 10k

D403

GND_IP
R431 1k8 C407 100nF D423 5V6 GND_REG

GND_AC

C419

GND_AC
C416 7000uF 50V

D412 R425 1N4002 22k FS402

GND_REG GND_PSUL -VCC

GND_OP_L

GND_REG
R420 7k5

5 6
R457 10k

-5V
T409 BC856B

+VCC

R454 47k R452 100k

7
IC404B LM393

CON404 GREY

D404

IC404A LM393

C420

-PSU

-PSU

R418 1R NFR T407 TIP32

I/P O/P
VR403 7915

-15V -15V

4 Amp fast

R429 3k R466 2k R453 100k R455 4k7 R458 10k

3 2

1

FUSE

C421

-VCC
CON405 D405

VIN
Placed at CON301

VR401 7805

GND_D GND_D

GND_D

HA7Z PSU and protection diagram

I/P O/P

VDD

D406

+CCS_L
R461 4k3

+CCS_R
R406 4k3

VDD
OC TRIP = 15A LF, 20HF, 25A TRAN. R438 68k R439 68k R442 13k R444 15k IC403A TL072 D417 BAS16 R448 10k R450 20k R451 10k

D407

C425 2200uF

C409 100nF

R460 1R NFR R401 CON406 VIOLET 1R NFR

C423

C426 22uF 63V

OC+L OC-L CCS_ON
T401 BC846B

3 2 -15V
R446 100k

1

D415 BAS16

+PSU OVER_C
R463 22k R464 22k

D408 R407 2k

C424

GND_D OC+R
T403 BC856B

GND_D GND_D
R440 68k R441 68k R443 13k R445 15k

+15V 5 6
IC403B TL072 R447 100k

C408 100nF

T410 BC846B D418 5V6

VDD
D409 BAS16 D410 BAS16 R403 47k

7

D416 BAS16 R449 1k8

GND_DGND_D

OC-R

D419

MUTE5V
BAS16 D420

GND_IP MAINS

R408 4k3

R462 4k3

GND_D

VDD
BAS16

GND_D GND_D -CCS_L
Cyrus III i Power supply

GND_D

C427 22uF 63V

R402 1k

-CCS_R

GND_D GND_D