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SCHEMATIC DIAGRAM-5
: +B Line : -B Line : Main Signal Line

PANEL CIRCUIT
CP901 HP_GND HP_L HP_R FL_AC1 1 2 3 4 5 6 7 8 9 10 C926 330P C925 330P C916 50V1 C920 50V1 R922 4.7K R943 1K I i r A B C R930 R929 100 100 C910 50V22 54 53

FL901

FL901

RSL0254-F
FL DISPLAY 41 40 39 38 37 36 35 34 33 C930 330P

TO MAIN CIRCUIT (CN901) ON SCHEMATIC DIAGRAM-2

FL_AC2 VP LIMITTER AF_MUTE N.C RELAY

C912 D903 MTZJ4R7BTA 50V22 C913 50V10 C914 50V10 R907 100K

50 49 48 47 46 45 44 43 42

C929 330P C928 330P C927 330P

Q901 <4.89V>
<0V> D923 RVD1SS133TA <0V> C903 0.01 R911 100K R944 100K R945 100K A b K J B C D E F G H I J

C924 330P C923 330P C922 330P C921 330P

RVTDTC114YST r
RESET CONTROL R910 1K
<4.88V>

Q901

K
<-23.51V> <-23.58V> <-23.57V> <5.11V>

L
<-14.96V> <-14.95V>

M
<-12.06V>

N
<-23.59V>

O
<-23.58V>

P
<-23.57V>

Q
<-17.8V> SEG7

R
<-14.94V>

A
<4.9V> <0V> <0V> <0V>

B

E

I

<-23.58V>

<-23.56V>

<-23.55V>

<-23.57V>

<-23.57V>

C

D

F

<-23.56V>

G

H

J

Y g f e

W X V

S a D E F d c

THERM/OVLD

OVERLOAD2

LED_DATA

REMOTE

RDS_CK

RDS_DT

LED_CK

RDS_DI

RESET

WAKE

XOUT

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 LIMITTER SEG8 <-26.48V> SEG9 40 65 TNR_ CE <0V> SEG10 39<-26.47V> 66 SEL/ TNR_CK <0V> SEG11 38 <-20.71V> 67 SEL/TNR_DT <0V> SEG12 37 <-12.01V> 68 SEL_ST <-14.92V> <0V> SEG13 36 69 MMD <-17.84V> <0V> SEG14 35 70 SURR/OSD_CK IC901 <-23.61V> <0V> 71 SURR/OSD_DT SEG15 34 <-20.74V> <4.93V> IC901 SEG16 33 72 SURR_CE M38B57M6140F <-15.45V> <0V> MICROCOMPUTER AF_MUTE 32 73 AVSS <-7.62V> <5.06V> 74 VREF SP_A 31 <4.77V> <5.03V> SP_B 30 75 SD <5V> <-6.17V> 76 SUR1 S/C_SP 29 <-26.68V> <4.93V> VEE 28 77 HELP_LED/RDS_CE <5V> <0V> 6CH_ST 27 78 SUR2 SEL2 <4.93V> <0V> 79 VIDEO_B LOUDNESS26
REC_MUTE IF_DATA VOL_DOWN VOL_UP INIT_IN DEG10 DEG9 DEG7 DEG6 DEG8 DEG2 DEG1 DEG4 SEG1 SEG5 DEG3 SEG2 DEG5 SEG3

<-23.61V>

R917 10K

<0V>

SEG4

HOLD

FMST

KEY4

SFC1

SFC2

SEG6

<5.06V> R912 22K <0.54V>

R916 <1.08V>

<5.05V>

<5.06V>

<4.22V>

<5.06V>

<4.89V>

<5.02V>

<4.99V>

<5.02V>

<5.02V>

<5.06V>

<4.93V>

<0.02V>

D901 1SS291TA

D921 RVD1SS133TA C993 100P C994 100P
R994 100K

Q

P

O

k

22K

Z R901 1K CF901 3 1 C904 6.3V1000 R913 10K C902 0.1 C901 6.3V1000 R920 270 <5.07V> <5.06V>

Z891

<5.02V>

<0.02V>

<0.03V>

<0V>

<0V>

<0V>

<0V>

<0V>

<0V>

<4.91V> 80 VIDEO_A KEY1 KEY2 1 2 3

4

5

6

7

8

9

RLY 25 TV/VCR2 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
XIN

SEL1

GND

VDD

<4.85V>

Q902
<4.35V> R921 120 C908 D924 MTZJ3R9ATA 0.01

R993 100K

R909 47K 3 2 1 R906 2.2K R908 100K 2

C891 16V10

C905 0.01

C906 6.3V100

2SA933SSTA
REGULATOR

Q902

L901 100uH C933 100P

M

N

T

P

V

W X

Y

C932 100P

Z

a

b

c

d

e

f

g C955 100P

1
SP_A

2
SP_B

3
S/C

4
OV1

5
VDD

6
GND

7
SUR_CE

8
SUR_CK

9
SUR_DT

10
TCE

1
FM_ST

2
SD

3
IF_DATA

4
VIDEO_A

5
VIDEO_B

6
SEL_ST

7
SDT

8
SCK

9
+14V

10
-14V

CP902

CP903

TO MAIN CIRCUIT (CN902) ON SCHEMATIC DIAGRAM-2

TO MAIN CIRCUIT (CN903) ON SCHEMATIC DIAGRAM-2

SCHEMATIC DIAGRAM-6
: +B Line : -B Line : Main Signal Line

32 31 30 29 28
SEG1 SEG2

27 26 25
SEG5 SEG3 SEG4

24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
SEG10 SEG12 SEG13 SEG14 SEG16 SEG15 SEG11 SEG7 SEG8 SEG9 SEG6

9

8

7

6

5

2

1

K

L

M

N

O

P

Q

R

S

T

U

V

W X

Y

Z

a
POW GND

b

c

d

e IC501

C909 50V22

IC501
GND

BA6218
9
OUT

<5.58V>

<1.5V>

<0.5V>

1
<0V>

2
<0V>

3
<0V>

4
<0V>

5
<0V>

GND

NC

VCC

IN

6

7

OUT

MOTOR DRIVER

C911 50V22

IN

8
<0V>

C506 0.1 C505 0.1

R892 10K J K S k Q e d c b a S T U V W X Y Z I M N T VR903 (MODE SFC CONTROL)
C895 100P

R891 10K R508 2.2 C503 6.3V100 C504 6.3V100 n o p q U I

R915 2.2K
D937 SLR325VCT31

O

D93 R934 <4.96V>270 SLR325VCT31

D932 R932 <0.36V>270 SLR325VCT31

D936 R936 <4.95V> 270 SLR325VCT31

C997 16V10

D931 SLR325VCT31

D935 SLR325VCT31

D933 SLR325VCT31

Q505,Q506

R933 270

R931 270

R935 270

R937 270

2SD1915FTA
MUTING SWITCH

VR901 (INPUT SELECTOR)

C998 0.01

R946 10K

<4.95V>

<4.94V>

<4.97V>

<4.94V>

<4.94V>

R544 1K 9
Q5

Q506
<-15.43V> <0V>

<0V>

16 COM B 1 2 A 3 R992 100K
VDD

15
Q11

14
Q10

13
Q9

12
Q8

11
Q7

10
Q6

C536 0.1

R534 47K

IC903 BU2090A
DATA VSS CLK Q1 Q2 Q3 Q0

IC903

I/O EXPANDER
Q4

D942 R942 SLR325MCT31 180 <4.86V>

<4.97V>

<0.02V>

<0.35V>

<0.02V>

<4.99V>

<4.94V>

<0V>

C992 100P

C991 100P

R991 100K

R543 1K

Q505
<-15.42V>

<0V> <0V> R533 47K

1

2

3

4

5

6

7

8 R546 22K Q1681,Q1682

R998 100

h

R997 100

C894 100P

2SD1915FTA
MUTING SWITCH R1683 R1685 R1687 27 27 27 R1689 27 R1681 27

i COM B 1 2 A 3 R996 100K R995 100K C996 100P C995 100P

R893 10K

R894 10K

A

B

C

D

Q1681
<0V> R1695 1K <-15.46V> <0V> R1691 27 R1693 27

C935 330P R948 10K S948 TAPE

R949 10K R950 1K R951 1.2K R955 3.3K S950 FM MODE S951 BAND S955 MEMORY A A

R1699 3.3K

S976 R986 4.7K DVD 6CH

Q1682
C1685 0.01 B R1682 R1684 27 27 R1696 1K <0V>

R1694 27 R1692 27 R1690 27

G

C B

<-15.47V> <0V> R1686 R1688 27 27

C

O

k

h

p

q

o

n

I

U

1
REC_MUTE 6CH_ST

2

3
N.C

4
SUB_OUT

5
SR_OUT

6
SR_IN GND

7

8
SUB_IN

9
L_OUT

10
R_OUT

CP904

TO MAIN CIRCUIT (CN904) ON SCHEMATIC DIAGRAM-1

SCHEMATIC DIAGRAM-7
: +B Line : -B Line : Main Signal Line

IC551,IC552

UPC4570C
TONE CONTROL B

R566 R568 10K 680 C566 220P C564 100P C562 (SW2) 50V3.3 R562 1K C556 220P
<0.17V>

R556 22K

R558 820 C554 100P
<-16.6V>

(C2) C552 50V3.3 R552 1K

<-16.6V>

<0.01V>

<0.01V>

<0.01V>

JUMPER

F G H I C568 0.01

<0.1V>

C

1

2

3

4

R564 100K

C558 0.01

C560 16V10

<0.01V>

1

2

3

4

R554 100K

IC552
<0.16V> <0.01V> <0.01V> <14.3V> <0.17V> <14.3V>

IC551
<0.01V> <0.01V>

C567 0.01

8

7

6

5

R563 100K

C557 0.01

C559 16V10

(SR2)

8

7

6

5 R553 100K C551 50V3.3 R557 820 R551 1K

C565 220P R565 22K R502 2.2K

C563 R567 100P 820

C561 50V3.3

R561 1K

C555 220P R555 22K

C553 100P

(S2)

R501 2.2K

C534 16V10

C520 50V4.7 R532 3.3K C522 R520 50V4.7 3.3K R518 1.8K R516 C516 470K 220P C518 33P R514 470K C512 50V3.3 C514 15P VR502 (BALANCE CONTROL) 5 1 2 R512 470
L501 1uH L502 1uH

R506 10K

S(L)

R505 10K VR501-6 C VR501-5 VR501-4

R522 22K
C524 0.012

R526 2.2K
<0V>

VR512-1 (TREBLE)

C528 5600P

VR511-1 (BASS)

C531 0.01

8 R530 27K R528 820 R531 3.3K C521 50V4.7 R517 1.8K R519 3.3K C517 33P

7

6

<0.03V>

<14.3V>

<0.03V>

VR501-3 R503 10K VR501-2

R L R504 10K

C526 0.068

C530 0.027

IC511
<0.03V> <-16.6V> <0.03V>

3 4 4 R513 470K C513 15P R511 C511 470 50V3.3

R524 3.9K C533 16V10

1
<0V>

2

3

R509 10K

VR501-1

SR SW

R510 10K

R521 22K

R525 2.2K C527 5600P VR512-2 (TREBLE)

C515 220P R515 470K C532 0.01

IC511

VR501 (MOTOR VOLUME) - M +

UPC4570C
TONE CONTROL

VR511-2 (BASS)

C523 0.012

C525 0.068

C519 50V4.7 C529 0.027 R529 27K

CP501 4 3 2 1 G F E D C HP JACK HP JACK HP JACK HP JACK CN355 SURR_A 7 6 HELP SURR_B 5 4 3 2 1

CN501 4 3 2 1 GND L R HP601

R523 3.9K

R527 820

HEADPHONE JACK CIRCUIT
TO OPERATION CIRCUIT (W355) ON SCHEMATIC DIAGRAM-8

F

G

C

B

I

H

A

B

C

D

B A

1
GND

2
R_IN

3
L_IN

4
LS_OUT

5
C_OUT

6
+5.6V

7
LS_IN

8
C_IN

1
KEY2

2
KEY1

3
KEY4

4
5.6V

5
OFF

6
SURR

7
3ST

8
SFC

CP905

CN354

TO MAIN CIRCUIT (CN905) ON SCHEMATIC DIAGRAM-1

TO OPERATION CIRCUIT (W354) ON SCHEMATIC DIAGRAM-8