Headphone Circuit - Panasonic SA-AK66 Service Manual

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Operating instructions manual (40 pages)

Service manual (79 pages)

Table Of Contents

Table of Contents

SCHEMATIC DIAGRAM - 7

TACT SWITCH (1)

CIRCUIT

Z940

Vdd

GP1UM262RK

REMOTE CONTROL SENSOR

C941

0.01

C940

0.01

D949

SLR325DCT31

R949

D949

470

RMT

VREF+

NAS_LED

CD_LED

TAPE_LED

TUNER_LED

CTL_+B

SUB_K1

R954

GND

S940

R940

1.2K

AUX

1.8K

H940B

H940A

R941

S941

2.2K

TUNER

R942

/BAND

2.7K

S942

R943

TAPE

4.7K

R965

10K

S943

R944

6.8K

R945

10K

S945

SSEQ

VR900

EVEKE2F2524B

JOG VOL

R900

R919

COM B

D917

C900

C919

D918

100P

R905

R904

2.2K

1.8K

R912

R911

R910

R909

4.7K

2.7K

2.2K

1.8K

TACT SWITCH (2) CIRCUIT

: +B SIGNAL LINE

PANEL CIRCUIT

6CH_LED

D951

SLR325MCT31W

SSS_LED

D952

SLR325DCT31

DPL_LED

D953

SLR325DCT31

R969

470

R952

R951

R956

R955

4.7K

2.7K

R964

R963

R962

R961 R960 R959 R958 R957

4.7K

2.7K

1.8K

1.2K

6.8K

2.2K

V_JOG_A/B

GND

22K

D914-D918

12K

SLR325MCT31W

SUB_K3

D914

D915

R914 470

D916

R915 470

R916 470

R917 470

CTL_+B

R918 470

R903

R902

R901

1.2K

R908

R907

R906

1.2K

: MAIN SIGNAL LINE

C600

35V22

(9.21V)<9.21V>

9.2V((9.15V))

[9.21V]

Q600

(8.47V)<8.47V>

8.46V((8.47V))

[8.47V]

Q600

KTA12710YTA

R968

R967

470

SUPPLY SWITCH

LED +9V

R628

10K

CP900

IC601

CN900

C654

100P

: CD SIGNAL LINE

(9.21V)<9.22V>

9.21V((9.16V))

[9.23V]

R624

22K

R623

1.5K

LED9V

LED_CTL

C608

R637

330P

22K

C609

6.3V100

C610

1000P

R638

C611

6.3V1000P

D610

C612

MA723TA

1000P

R630

R640

R629

10K

R631

R632

R633

R653

R680

10K

R634

R635

C606

C607

100P

R605

<0V>(0V)

3.9K

((0))0V

D605

R636

100

D605

SLI325URCT31

IC601

BU2090AF-E2

IO EXPANDER IC

H920A

H920B

L920-921

RLQB101JTD-D

L922

RLQZP100KT-Y

L920

L921

L922

C920

0.022

C921

0.022

R920

68K

S920

EJECT

JK920

HEADPHONE