Technics SAAX-54 Schematic

SCHEMATIC DIAGRAM-1

MAIN CIRCUIT

: +B line

: -B line

: Main signal line

: FM/AM signal line

TO
AC-3
CIRCUIT
(CN401) ON

SCHEMATIC
DIAGRAM-8

TO
AC-3
CIRCUIT

(CN402) ON
SCHEMATIC
DIAGRAM-8

JK401

L CH

PHONO

R CH

CP401

GND

SW_OUT

GND
V_SELB
V_SELA

SW_EXT
SR_EXT

CP402
SL_EXT
C_EXT
L_EXT

R_EXT

-14V
+14V
AGND

IC451

AN6558F

PHONO EQ IC

R453

C451

820

R451
220K

R452
220K

50V4.7

R457

270

R455

C457

10V33

C458

R456

10V33

R458

270

R454

C452

820

50V4.7

f

e
f
h

g
h

i
j

l
k

n
p
q

r

IC602

NJM2060D

BUFFER AMP

E401

C406

100P

1

3

2

1
2
3
4
5
6
7

1
2
3
4
5
6
7

56K

56K

R459

68

R460

R463

R461
180K

C453

100P

12K

C461

6800P

<-14.95V>
4

C459

0.022

1000P

C455

<0.05V>

3

2

50V4.7

<0.05V>

1

C463

<-0.11V>

C466

0.01
R465

56K

IC451

C454
100P

C462

68

6800P

R464

12K

<0V>

14

m

13

C456

<0.05V>
1000P

C577

0.01

<0V>

C460

0.022

R462
180K

<0V>

12

VSS

765

<0.05V>

11

IC602

VCC

4

3

1 2

R576

<0V>

<0V>

<0V>

2.7K

C576

560P

<14.31V>

8

<-0.11V>

<14.24V>

C464

50V4.7

R572

680

<-14.96V>

<0V>

10

5

<0V>

C574

1000P
R574

2.7K

<0V>

9

6

R573

2.7K

<0V>

C573

560P

C465

0.01

8

7

<0V>

<0V>

R466

56K

qr

l

C580

R580

680

16V22

+

IC652

NJM4580DD

BUFFER AMP

C582
560P

R582

<0V>

1

2.7K

<14.97V>

<0V>

<0V>

4

2

3

C652

63V33

+

R654

1.8K

IC652

C4

8

<0.03V>

7

R581

<0V>

C581

2.7K

560P

6

5

<0V>

<0V>

C691

63V33

16V22

+

C579

R692

1.8K

R652

680

TO
PANEL
CIRCUIT

(CP904) ON
SCHEMATIC
DIAGRAM-6

CN904

S_DET

OVL2

6CH_STB

SW_MAIN_IN

RS_IN
GND1

SURR_SROUT

SW_OUT
MAIN_LIN
MAIN_RIN

1
2
3
4
5
6
7
8
9

10

CP1201

C414

+

16V10

R420
100K

g

h

d

2

3

1

AGND

C_EXT

SL_EXT

TO
PRO-LOGIC
CIRCUIT
(CN1201) ON

SCHEMATIC
DIAGRAM-10

4

PH_L

5

PH_R

i

6

L_EXT

j

7

R_EXT

b

CP1202

2

-14V

3

SW_EXT

p

5

6

4

SW_OUT

SURR_COUT

SURR_SLOUT

k lfh n t

1

+14V

TO
PRO-LOGIC
CIRCUIT
(CN1202) ON

SCHEMATIC
DIAGRAM-10

R575
680

C575
16V22

L4

7

CP1203

SURR_SROUT

C578

p

0.01

a

SR_EXT

R571

680

C571

16V22

R4

4

3

5

2

1

L_DOUT

TU_LOUT

TU_ROUT

TO
PRO-LOGIC
CIRCUIT
(CN1203) ON
SCHEMATIC
DIAGRAM-10

6

7

R_DOUT

6CH_STB

4

2

1

3

SL_IN

L_DOUT

R_DOUT

TO
PANEL

(CP905) ON
SCHEMATIC
DIAGRAM-7

5

6

7

5.6V

C_IN

SURR_SLOUT

CIRCUIT

C413

16V10

8

CN905

SURR_COUT

R419
100K

SCHEMATIC DIAGRAM-2

IN3-

SGND

IN2-

23 22

IC601

RSN310R36-P

POWER AMP(HIC)

L5

R689

820

R690

820

C601

63V33

C602

63V33

C641

63V33

24

<0V>

<0V>

<0V>

C642
820P

C603

C604

820P

820P

R605

4.7

220

220

R624

R647

R603

1.8K

R5

R604

1.8K

R642

1.8K

R606

21

<0V>

220

IN1-

C622

C607
18P

R607

PASS+

PASS-

<57.7V>

<-57.7V>

C621

100V10

100V10

RVD1SS133TA

C643

56K

R643

56K

18P

C619

C608

18P

R608

56K

TTLPowLim

1820

1719

<-0.26V>

R636

25V100

D617

: +B line

VDlim

16

<-8.27V>

<-28.47V>

47K

RLY

C618

SENS-

15

<-16.55V>

1000P

R638

150K

IC601

SENS+

14

<14.27V>

150K

R637

13

<-0.75V>

2.2

C617

IHDET

470K

R629

<-1.54V>

DISP

12

R634

1K

R630

<0V>

120K

DC

25V100

R631

: -B line

<-12.23V>

OVERDET

1011

C616

R633

47K

150K

180K

R632

<-0.01V>

GND

9

0.01

C615

d

<-0.05V>

AC

8

R635

<0.01V>

Vo1

7

D602

150K

a

n

<-31.7V>

-HOUT

6

RK306LFU1

d c b f

: Main signal line

<31.62V>

Vo2

VH-

+HOUT

4

3

5

<0.01V>

<-61.7V>

C646

RK306LFU1

0.1

R610

L604

0.7µΗ

g

h

D601

: FM/AM signal line

VH+

Vo3

1

2

RVD1SS133TA

D605

<62V>

<0.01V>

C612

0.047

47

R645

L602

0.7µΗ

47

10

R612

R609

47

L603

0.7µΗ

j k m d a b c

a b

100

100

R627

R628

C611

10

0.047

R644

10

C644

R611

0.047

R625

C625

100

100

R626

10

10

C626

IC651

<-9.29V>

SGND

22

C692
820P

<0V>

4.7

R674

d
a
b

c

h

C654

820P

220

R697

CP1204

2021 19

<0V>

<0V>

220

R656

R672

1

TO
PRO-LOGIC
CIRCUIT
(CN1204) ON
SCHEMATIC
DIAGRAM-10

-VD

<-60V>

100V10

C672

47

R671

2

TNR_CK

+VD

17

18

100V10

C671

47

3

4

SURR_CK

SURR_DT

SURR_CE

NC (OPEN)

16

<0V>

<0V>

C658

18P

R658
56K

R693
56K

C693
18P

6

5

TNR_DT

NC (OPEN)

15

<0V>

7

SEL_ST

<61.1V>

IN2+

IN2-

RLY

1000P

C668

14

SENS-

<-12.1V>

R688

SENS+

13

12

<15.26V>

150K

R687

CN902

<-0.28V>

2.2

C667

150K

DISPDCOVERDET

IHDET

11

1098 7

C666

25V100

470K

<-0.01V>

R683

<-11.23V>

47K

R684

6.8K

220K

R679

R681

RSN313H25-P

HIC

a b c

3

2

1

4

SP_A

SP_B

S/C_SP

OVERLOAD

TO
PANEL

(CP902) ON
SCHEMATIC
DIAGRAM-5

<-12.32V>

+

220K

R682

IC651

L751

100µH
6

5

5.6V

BACKUP

GND

AC

<-0.01V>

<-0.05V>

0.01

C685

8

7

SURR_CE

SURR_CK

CIRCUIT

VOL1

6

<0V>

150K

R685

10

9

TNR_CE

SURR_DT

5

<-31.64V>

D652

C758

100

CN903

-HOUT

+HOUT

4

3

<0V>

<31.57V>

D651

1

2
SD

STEREO
FM_

<-61.7V>

VH+

VOL2

VH-

1

2

<62V>

R664

47

L652

0.7µΗ

L651

0.7µΗ
R663

47

f e

4

5

6

3

IFIN

SEL_ST

V_SELB

V_SELA

TO

PANEL
(CP903) ON
SCHEMATIC

DIAGRAM-5

10

R661

R662

D655

C662

0.047

C661

k

l

r q j a b t c d i

9 10

8

+14V

1

-14V

7

TUN_DT

TUN_CK

CIRCUIT

10

0.047

2

3

AC

HP_L

HP_R

TO
PANEL

(CP901) ON
SCHEMATIC
DIAGRAM-5

D655
RVD1SS133TA

D651,D652

RK306LFU1

4

5

AC2

e g

6

7

-27V
LIMITTER

CIRCUIT

k
e
h

q
b

a

p

9

8

RDS

AF_MUTE

10

CN901

RELAY

SCHEMATIC DIAGRAM-3

: +B line

: -B line

: Main signal line

: FM/AM signal line

SR3

Q723

RVTDTA114YST

SHORT DETECTOR
Q725

RVTDTC114YST

SHORT DETECTOR

2SD2374PQAU

2SC1740SQSTA

2SA1534AQRTA

C537

16V10

SL3

C538

16V10

C586

16V10

R586

10K

R585

C3

10K

C585
16V22

bp d a m

k
t

l

Q701

REGULATOR

Q703,704

REGULATOR

Q707

REGULATOR

Q708

2SB1548PQAU

REGULATOR

Q706

2SC1740SQSTA

REGULATOR

Q706

<5.59V>

<6.22V>

R714

<13.83V>

R537
10K

R538

10K

39

R535

2.7K
<0V>

<0V>
<0V>

R536

2.7K

R584

2.7K
<0V>

<0V>

Q553

R583

2.7K

39

R713

0.01

C710

C715

16V100

<-14.91V>

C714

25V47

<0V>

<0V>

<0V>

C709

16V33

D708

Q708

Q551

<-15.4V>

Q552

<-15.4V>

Q554

<-15.4V>

<-15.4V>

C572

16V22

R711

7.5K

6.8K

R712

MTZJ16CTA

R595

1K

R596

1K

R598

1K

R597

1K

<14.37V>

<14.96V>

<14.94V>

<15.52V>

<6.82V>

R708

1.5K

R725

820

0.01

C713

<-15.51V>

<-31.88V>

0.1

C535

Q551,552,553,554

2SD1915FTA

MUTING CONTROL

Q701

<31.65V>

Q703

<31.42V>

<15.53V>

Q704

<6.22V>

D705

0.01

C711

<-27.6V>

<-27.04V>

<-38.5V>

Q707

MTZJ6R2BTA

R550

8.2K

C708

R721

560

<5.07V>

Q725

0.01

R722

<31.63V>

R707
220

R706

1K

C712

12K

R727

220

<-31.86V>

R705

C707

50V10

10K

47K

<-0.01V>

10K

47K

R723

1/2W 1

4.7K

35V100

D707

R726

220

g

h
e

b
a

c

d

<-0.01V>

C705

C706

MTZJ27DTA

10K

47K

R724
1/2W 1

<-0.01V>

Q723

<31.89V>

D732

35V5600P35V5600P

10K

R720

<5.28V>

Q724

<-31.98V>

R545
680K

Q604

<-0.01V>

10K

10K

<4.45V>

R639

100K

R640

1K

Q604

RVTDTA114EST

REGULATOR

RVD1SS133TA

D721D722

D725D726

C721

D731

RVD1SS133TA

RVTDTC114YST

REGULATOR

<-0.01V>

10K

4.7K

<-9.25V>

Q651

<-0.37V>

a
b

c

<-8.23V>

d

Q652

<-27.7V>

d c fej g m n

a

D723D724

0.1

D721-728

1N5402BM21

Q724

s

10K

4.7K

<-0.91V>

6.8K

R623

Q603

<-6.17V>

<-1.14V>

D727

D728

4.7K

R615

1K

10K

<-6.16V>

<-0.37V>

<-0.88V>

6.8K

R621

<-1.012V>

<-6.3V>

Q601,602,603

RVTDTA143XST

RELAY DRIVE

R728

680K

0.1

C722

d

10K

<-0.05V>

<-0.92V>

10K

4.7K

<-7.64V>

Q601

680K

R729

R441
47K

Q605

<-0.01V>

10K

D618

MTZJ18CTA

C702

D702

0.1

D703

D701-704
1N5402BM21

R780

3.9

R442
47K

Q605

RVTDTA114EST

REGULATOR

R698

R613

3.3K

3.3K

6.8K

<-0.91V>

R622

10K

4.7K

<4.76V>

<-31.96V>

Q602

R699

2.2K

Q651, Q652

RVTDTA143XST

RELAY DRIVE

D704

D701

q

R614

2.2K

C703

75V7500

f
h
g
e

r

C704

75V7500

56

R440

R443

C440

56

0.01

D401

MTZJ7R5CTA

11

DI

CL

DO

8910

6

7

4

5

CE

DET

7.5V

TU_LOUT

TU_ROUT

TO
TUNER PACK
(RAN0001MM)

2

3

1

CP101

SD

+14V

SCHEMATIC DIAGRAM-4

: +B line

Q777,778

2SA933SQRSTA

FAN MOTOR DRIVE

10K

<0V>

Q778

D770

R778

4.7K

<-16.4V>

<-16.4V>

<-0.13V>

R771
100K

Q772

<-16.3V>

<-0.16V>

<-16.4V>

R777
150K

R773

10K
<0V>

Q774

RVTDTA113ZST

FAN MOTOR DRIVE

D771,772,774
MA700ATA

D769,770
RVD1SS133TA

D771 D772

R774

C780

1.5M

16V470

C778
16V100

C779
16V100

C772
50V4.7

C771

50V4.7

R779

Q777

<0V>

R770
100K

<-16.4V>

p

q

c
a
b
d

<-16.4V>

RL601-604

RSY0013M-0

<-0.01V>

C774

6.3V100
<0V>

R769

10K

R784

R786

150K

150K
<0V>

Q776

: -B line

Q774

10K

1K

R782
39

<-16.4V>

Q781

C5

<0.01V>

R768

C773

0.1

R775
330

<-16.5V>

D774

Q775

<-0.01V>

<-0.01V>

<-16.22V>

1K

Q773

: Main signal line

RL603

1

3

2

4

5

6

D613

RVD1SS133TA

RL604

3

1
2

4

5

6

D614

RVD1SS133TA

RL601

3

1
2

4

5

6

D611

RVD1SS133TA

RL602

3

1

4

2
5

6

D612

RVD1SS133TA

Q775

RVTDTA114EST

FAN MOTOR DRIVE

C775
16V10

16V220

D768

D773

<0V>

<-0.01V>

R767
150K

D769

C777

<0V>

10K

10K

<0.01V>

<-0.02V>

C781

0.01

<-12.13V>

47K

R766

<-0.65V>

C776
50V1

R776

22

SL5

SR5

R618

390

R619

R616

390

R6

390

R617

390

R797

L6

Q772,776,781

2SC1740SSTA

FAN MOTOR DRIVE
Q780

2SA933SQRSTA

FAN MOTOR DRIVE

Q773

2SB621AQSTA

FAN MOTOR DRIVE

Q780

D773
MTZJ8R2CTA
D768
MTZJ3R3ATA

22K

R795

22K

R791

R798

R799

R6

12K

22K

6.8K

L6

R794

12K

R792

R793

j
i

h

g

f

e

c
t

12K

12K

R730

5.6

C690

0.01

C701

0.01

JK603

1

+

2

-

R CH

3

+

4

-

L CH

JK602

­+

L CH

­+

R CH

FRONT SPEAKERS

+

L CH

­+

R CH

­+

CENTER SPEAKER

­JK601

E601

W752

BACKUP5.6V

3

RELAY

2
1

W701

1
2
3
4

5
6
7
8

9

10
11
12

CP771

E

1

1

-B

2

2

SURROUND
SPEAKERS

M

M771

FAN MOTOR

TO

CIRCUIT

POWER
(CN752) ON
SCHEMATIC

DIAGRAM-11

TO
TRANSFORMER

CIRCUIT
(W701) ON
SCHEMATIC
DIAGRAM-11