KENWOOD KDC-X815, KCD.X915, KDC-PS9016R, KDC-PS9080R Service Manual

CD RECEIVER

KDC-X915/X815

PS9016R/PS9080R

SERVICE MANUAL

●KDC-X915

∗Escutcheon
(B07-2183-02)

KDC-X915

Mounting hardware assy

(J21-9491-03)

Plastic cabinet assy
(A02-1489-03)

∗Front glass
(B10-3107-01)

Stay
(J54-0606-04)

© 2000-1 PRINTED IN JAPAN

B51-7571-00(S) 3448

Extension cord

CD mechanism(22P) W05-0618-00

∗Panel assy
(A64-1867-02)

DISP

∗ : Refer to the Parts List
Lever x2

(D10-4301-14)
(D10-4302-14)

Parts No.

Screw set
(N99-1652-05)

The MECHANISM OPERATION DESCRIPTION is the same as model KDC-S3007 and KDC-5050RG.
Please refer to the service manual for model KDC-S3007(B51-7029-00) or KDC-5050RG(B51-7099-00).

Screw set

(N99-1683-05)

(E30-4779-05):KDC-X815
(E30-4781-05):KDC-PS9016R
(E30-4782-05):KDC-X915

(E30-4788-05):KDC-PS9080R

Bracket

(J19-4875-04)
(J19-4876-04)

COM+B

FM+B

AM+B

E2PROM

DIMMER

2WAY MUTE

ACC DET.

SRMPHOT

BU DET.

SRM
DRIVER

A8V

SERVO

DC/DC

SW14V

SW5V

BU5V

P CON

ANT-CON

MUTE DRIVER

4.5V PRE

MUTE

E's

POWER IC

IC4

IC14

u-com

IC1

CD

CH

IC10

IC7-9

IC5

IC2

F/E

MECHADET.

E-VOL

PREOUT

SP-OUT

DIMMER

TEL-MUTE

ACC

ANT-CONT

P-CON
BACK UP

DECORDER

RDS

IC11

IC16

EX.AMP CONTROL

AVR

DC/DC
BOX

PANEL u-com

RESET SW

RESET IC

VFD

REMO

G/R SW

SPEANA

IC15

ANT. IN

AMP

IC12

NOISE

PREOUT OUTPUT VOLTAGE

SPEANA
AGC OPAMP

CONTROL

EX.AMP

NAVI-MUTE

PANEL 5V

4.5VPRE

IC3

IC6

DC/DC
REG

MATRIX

KEY

LOCK SW

PANEL

BFP

FL TYPE

PLL CLK

CH

MO SW

SERVO+B

LO/EJ

STOP

MUTE

DATA S

CLK

SW2

CS

SQR

DATA M

SW3

SW1

A8V
BU5V

RST

REQ C

CLK

CH-CON

DATA H

REQ H

CD

AM

FM

MUTE

MC REQ

PANEL RST

SC REQ

MC CLK

SC DATA

RESET

SRM SW1

SRM DET

SRM SW2

RDCK

RDDA

QUAL

SDA

SCL

A8V

+B

-B

+B

-B

PLL DATA

PLL CE

S-METER

SW5V

SW5V

DATA C

BACK UP

PANEL 5V

FAC

FL+B

750mV

4500mV

CHANGER

AM

4.5V PRE

2250mVFM

160mV

1200mV

1200mV

213mV (E TYPE)

400mV (K TYPE)

RDS OUT

FM+B

NOISE

4500mVCD

K TYPEMODE

4500mV

4500mV

1069mV

1715mV

E TYPE

3600mV

600mV

1800mV

3600mV

K TYPE E TYPE

3600mV

1372mV

855mV

3600mV

1.8V PRE

SRM SUB-

SRM SUB+

DRIVER

MUTE

BU5V

DC/DC IS FL ONLY

RST

2

KDC-X915/X815/PS9016R/PS9080R

BLOCK DIAGRAM

MICROCOMPUTER'S DESCRIPTION

System µ-com: UPD784217GC

●Terminal description

No. Pin name Function I/O Description Processing Operation

1 P120/RTP0 CHCON1 O Changer 1 control Active: Hi
2 P121/RTP1 CH_MUTE I Changer muting input MUTE Requested : Hi
3 P122/RTP2 REQH O Handshake request to changers Active: Lo
4 P123/RTP3 ILL_ON O Illumination output Active: Hi
5 P124/RTP4 NC O Open
6 P125/RTP5 CD_SW2 I 12cm DISC detection ON: Lo
7 P126/RTP6 CD_SW1 I Loading detection ON: Lo
8 P127/RTP7 NC O Open

9 Vdd Vdd - Positive power supply
10 X2 X2 - Main clock connection
11 X1 X1 - Main clock connection
12 Vss Vss - GND
13 XT2 XT2 - Sub clock connection
14 XT1 XT1 - Sub clock connection
15 RESET RESET I Reset input Active: Lo
16 P00/INTP0 CH_RST O Changer reset output Active: Lo
17 P01/INTP1 R_CLK I RDS clock input
18 P02/INTP2/NMI REQC I Handshake request from changer Active: Lo
19 P03/INTP3 NC I/O
20 P04/INTP4 NC I/O
21 P05/INTP5 NC I/O
22 P06/INTP6 SC_REQ I Handshake request from panel µ-com
23 AVdd AVdd - A/D analog power supply
24 AVref0 AVref - A/D reference voltage input
25 P10/AN10 PHONE I PHONE detection terminal 1V or less: PHONE

2.5V or more: NAVI MUTE
26 P11/ANI1 SRM_SW1 I SRM position detection Open: Hi
27 P12/ANI2 NOISE I FM noise detection Analog input
28 P13/ANI3 SMETER I FM signal meter detection Analog input
29 P14/ANI4 IF_MODE I K2I IF selector Wide: Hi/Narrow: Lo
30 P15/ANI5 NC I GND
31 P16/ANI6 M_MUTE_R I Mute request from mechanism Mute requested: Lo
32 P17/ANI7 M_MUTE_L I Mute request from mechanism Mute requested: Lo
33 AVss AVss - A/D GND
34 P130/ANO0 EXT_AMP O EXT_AMP control
35 P131/ANO1 M_RST O Reset output to mechanism Reset: Lo
36 AVref1 - D/A reference voltage input
37 P70/RxD2/SI2 DATAC I Data line from changer
38 P71/TxD2/SO2 DATAH O Data line to changer
39 P72/ASCK2/SCK2 CH_CLK I/O Clock line from/to changer
40 P20/RxD1/SI1
41 P21/TxD1/SO1
42 P22/ASCK1/SCK1 L_CLK/MC_CLK I/O Clock line to LCD driver
43 P23/PCL M_STOP O Stop request to mechanism Stop requested: Lo
44 P24/BUZ BEEP O Beep output Active: Hi
45 P25/SI0 PLL_CE O CE output to PLL
46 P26/SO0 PLL_DATA I/O Data in/out with PLL
47 P27/SCK0 PLL_CLK O Clock output to PLL
48 P80/A0 CD_SW3 I Switch detection ON : Hi
49 P81/A1 LO/EJ O Loading/Eject control Loading: Lo/Eject: Hi
50 P82/A2 MOSW O Motor output Loading: Hi/Eject: Lo
51 P83/A3 MECH_ DET I Mechanism detection ON: Hi/OFF: Lo
52 P84/A4 PAN5V O Panel detection OFF: Hi
53 P85/A5 L_CE/P_RST O CE to LCD driver/Panel µ-com reset
54 P86/A6 L_INH/MC_REQ O Reset to LCD driver

L_DATAL/SC_DATA
L_DATAS/MC_DATA

I Data line from LCD driver

I/O Data line to LCD driver

3

KDC-X915/X815/PS9016R/PS9080RKDC-X915/X815/PS9016R/PS9080R

MICROCOMPUTER'S DESCRIPTION

No. Pin name Function I/O Description Processing Operation

55 P87/A7 DIM_CON O DIM control
56 P40/AD0 QUAL I RDS receiving condition Good: Hi
57 P41/AD1 R_DATA I RDS data input
58 P42/AD2 SRM_SUB- O SRM sub motor output
59 P43/AD3 SRM_SUB+ O SRM sub motor output
60 P44/AD4 SRM_DET I SRM mechanism detection ON: Lo/OFF: Hi
61 P45/AD5 SRM_SW2 I SRM eject detection : Eject
62 P46/AD6 FM_SD I FM SD input Station detected: Hi

Not detected: Lo
63 P47/AD7 NC O Open
64 P50/A8 AFC O Noise detection time constant switching During reception: Hi

During search: Lo
65 P51/A9 O
66 P52/A10 WIDE O K2I Wide output Active: Hi
67 P53/A11 NARROW I/O K2I Narrow output Active: Hi
68 P54/A12 AM+B O AM power supply Active: Hi
69 P55/A13 FM+B O FM power supply Active: Hi
70 P56/A14 NC O Open
71 P57/A15 NC O Open
72 Vss - GND
73 P60/A16 TYPE0 I Destination type switch
74 P61/A17 TYPE1 I Destination type switch
75 P62/A18 TYPE2 I Destination type switch
76 P63/A19 ST_TYPE0 I IC2 Var. 3 destination type 0 Initial value: Lo
77 P64/RD ST_TYPE1 I IC2 Var. 3 destination type 1 Initial value: Lo
78 P65/WR NC O Open
79 P66/WAIT PRE MUTE R O Open Active: Lo
80 P67/ASTB PRE MUTE L O Open Active: Lo
81 Vdd - Positive power supply
82 P100/TI5/TO5 NC O Open
83 P101/TI6/TO6 SVR O Power IC reset Power ON: Lo
84 P102/TI7/TO7 NC O Open
85 P103/TI8/TO8 P_MUTE O Power IC muting Active: Lo
86 P30/TO0 ANT_CON O Antenna control Active: Hi
87 P31/TO1 IC2_SCK O IC2, IC5, EEPROM clock line
88 P32/TO2 DIMMER I Dimmer detection Active: Lo
89 P33/TI1 P_CON O Power control Active: Hi
90 P34/TI2 ACC_DET I ACC detection ACC OFF: Hi
91 P35/TI00 REMO I Remote control input
92 P36/TI01 P_ON O µ-com peripheral power supply Active: Hi
93 P37 BU_DET I Momentary power down detection Momentary power down: Hi
94 TEST - Test GND
95 P90 IC2_SDA I/O IC2, IC5, EEPROM data line
96 P91 MUTE O Muting output Active: Hi
97 P92 SW5 O 5V power supply Active: Lo
98 P93 MS_CL O CD mechanism clock line
99 P94 MS_DA I/O CD mechanism data line

100 P95 O NC

4

TEST MODE

1.Entering the test mode

Reset the unit by pressing the FM key and the Preset 6 key
at the same time.
When the test mode is entered, all indicators light up.

2.Releasing the test mode

Reset the unit by pressing the Preset 6 key.
Note: The unit cannot be reset by simply turning ACC off,

turning power off, or turning power off for a brief
moment.

3.Voltage adjustment on the FM S-meter

(1) Enter the test mode.
(2) While pressing the Preset 1 key, keep on pressing the

Preset 6 key.

(3) When the adjustment is made, "ADJ OK" is displayed.

When adjustment cannot be made, "ADJ NG" is
displayed.

4.Writing SD voltage for the AM

(1) Enter the test mode.
(2) While pressing the Preset 1 key, keep on pressing the

Preset 6 key, which results in writing SD.

5.Forced switching of K2I Auto/Manual

In tuner-mode, keeping on pressing TI key, and the Auto
and Manual modes can be swieched. The initial condition
is manual modes, which is indicated by flashing DUAL dots.

6.Forced narrow/wide switchng of K2I

In tuner-mode, when Preset 6 is pressed, forced narrow/
wide mode switching is made. The initial condition is in wide
mode and the NEWS dot flashes.

7.CD receiver test mode specification

By pressing the track-up key, the unit jumps to the following
tracks:
No. 9 ➔ No. 15 ➔ No. 10 ➔ No. 11 ➔ No. 12 ➔ No. 13 ➔
No. 14 ➔ No. 9 (Goes back to the first position.)
When the track-down key is pressed, the unit jumps to the
previous track.

9.Tape test mode

In the initial step, the blank skip is turned off.

10.Audio-related items

• The volume is -10dB (on display, it is 30).

• The loudness is off and CRSC is off regardless of
functions.

• Buss/treble and balance/fader are to be adjusted by the
up/down key to full-boost/fullcut and fullfront/fullrear
respectively.

• The high-pass filter is adjusted by the up-key to
throughput/100Hz/200Hz and, by the down-key, to
200Hz/100Hz/throughput.

• Other adjustments are the same as before.

11.Backup current measurement

When reset in ACC-off condition (backup is on), the mute
terminal goes off after 2 seconds instead of 15 seconds,
when the ACC is tuned off in the test mode. (In this case,
the panel/CD/C/MD mechanisms are not activated.)

12.Registering security code after changing
E2PROM at the services (Only for type
M. However, RDS models are excluded)

(1) Put the unit into the test mode (Refer to 1. Above for

how to enter the test mode.)
(2) Press SRC key to put the unit into the tuner mode.
(3) Press Audio key for one second and put the unit into

the menu mode.
(4) Press FM/AM key and then select "SECURITY."
(5) Press track up/down key for full 2 seconds.
(6) Press Preset 1, Preset 2, Preset 3, and Preset 4 and

then input codes.

Example: Inputting "3510."

• Preset 1 key 4 times.

• Preset 2 key 6 times.

• Preset 3 key 2 times.

• Preset 4 key once.

(7) Press DISP key for 3 seconds and confirm that

"APPROVED" is displayed.
(8) Release the test mode. (Refer to "2. Releasing the test

mode" above.)

8.MD test mode specification

After loading MD, the unit plays No. 7. Then, the unit jumps
as follows each time it track-ups.
No. 2 ➔ No. 13 ➔ No. 23 ➔ No. 30 ➔ No. 34 ➔
No. 7 (Goes back to the first position.)
When the track-down key is pressed, the unit jumps to the
previous track.

5

KDC-X915/X815/PS9016R/PS9080RKDC-X915/X815/PS9016R/PS9080R

TEST MODE

13.Simplified method for clearing the
security code (Only for type K)

(1) When code is requested, continue pressing VOL UP

key for three seconds while pressing the DISP key.

(.... disappear.)

(2) Input "KCAR," using the remote controller (the same

as the 98 Model)

• Press Tenkey 5 twice and then press track-up key.
(Inputting "K")

• Press Tenkey 2 three times and then press track-up
key. (Inputting "C")

• Press Tenkey 2 once and then press track-up key.
(Inputting "A")

• Press Tenkey 7 twice and then press track-up key.
(Inputting "R")

(3) Then, the security is released and the unit goes into

the Tuner Mode.

14.Writing MASK KEY on line (E2PROM in
initial codition)

(1) While pressing the FM key and Preset 6 key, press

reset key to enter the test mode.

(2) Press AUDIO key for full one second to put the unit

into the menu mode.
(3) Select the "MASK KEY," using the
(4)

Press on the track up/down key to display "TRANSMIT 1."
(5) Point the MASK KEY to the light receptor and press it

for 0.5 second or longer.
(6) When "TRANSMIT 2" is displayed, press MASK KEY

for 0.5 second or longer. When this is conducted, the

counter codes for the first time and the second time

will not be compared.
(7) When "APPROVED" is displayed, writing is completed.

Time the demonstration mode is set and the test mode

is released.

Note: After an elapse of 30-minuite period, during

which no code is written, an error is effected
and the device will power off.

15.

Releasing MASK KEY requests (When

FM key or AM

key.

reset or backup is off when MASK KEY is
approved)

(1) When power is turned on, "TRANSMIT 1" is displayed

and the unit goes into MASK KEY request mode.
(2)

Point the MASK KEY to the light receptor and press it for

more than 3 seconds (until the level display indicates full)
(3) When "TRANSMIT 2" is displayed, press the MASK

KEY again for more than three seconds. At this point,

when "TRANSMIT 1" is displayed, repeat the process

in (2) above for the second time.
(4) When "APPROVED" is displayed, MASK KEY is

approved and the unit turns power on.

16.

Initializing MASK KEY (returning to the
default condition from MASK KEY
approved state)

(1) While pressing the FM key and Preset 6 key at the

same time, press RESET to enter the test mode.

(2) "TRANSMIT 1" is displayed and the unit goes into

MASK KEY request mode. The display at this point will
be "**" instead of "[ ]".

(3) Use MASK KEY release remote controller for more than

three seconds.

(4) When "TRANSMIT 2" is displayed, press the MASK

KEY for more than three seconds for the second time.

(5)

When "APPROVED" is displayed, the MASK KEY is
released and the demonstration mode is set. Then, the test
mode is released, returning the unit into default condition.

17.Clearing from the MASK KEY

(1) While pressing FM key and Preset 6 key at the same

time, press RESET to enter the test mode.

(2) Press the AUDIO key for full one second to put the unit

into the menu mode.
(3) Select MASK KEY, using track up/down key.
(4) Press on the FM key or AM key for full two seconds

and the unit will display "TRANSMIT 1."
(5) Point the MASK KEY release controller to the light

receptor and press it for 3 seconds or longer. (Until the

level display indicates full.)
(6) When "TRANSMIT 2" is displayed, press MASK KEY

for 3 seconds or longer for the second time. If

"TRANSMIT 1" is displayed, start again from (5) above.
(7)

When "APROVED" is displayed, E2PROM is cleared.

The unit goes back to the condition described in Line

14: Writing MASK KEY on line (E2PROM in initial

condition)

18.Other

• Automatic panel closing does not occur in case a TAPE,

CD, or MD is inserted.

• Panel is opened/closed when ATT key is turned On/Off.

(A remote controller is used when turning ATT on.)

• The DNPP/SBF key of the remote controller (RC-510) is

used for tuning the menu mode On/Off.

• The OPEN/CLOSE key of the remote controller (RC-510)

is used for tuning the audio mode On/Off.

• The feed on the menu will be feeds only for necessary

features.

• "CODE OFF" and other displays will not be issued when

the power is turned on.

•

The dimmer of the FL model and contrast on the LCD model
can be adjusted only for 0/5/10 by the UP/DOWN key.

6

KDC-X915/X815/PS9016R/PS9080R

KDC-PS9016R/PS9080R

ADJUSTMENT

Set the controls and switches as follows.
BALANCE: center position BASS: center position LOUD: OFF DOLBY NR: OFF
FADER: center position TREBLE: center position

No ITEM INPUT SETTINGS OUTPUT TUNER ALIGNMENT ALIGN FOR FIG.

SETTINGS (RECEIVER) POINTS

SETTINGS

FM SECTION

1 SEPARATION 98.1MHz Connect an TEST MODE: ON VR1 Adjust it so that

(NARROW) 1kHz, ±40kHz dev AC voltmeter (Forced Narrow) the crosstalk

Pilot: ±6.0kHz dev to SP OUT from L to R and R to L

Selector: L or R become minimum.

60dBµ (ANT input) FM98.1MHz

J1

VR1

SEPARATION

(X25-)

FRONT

7

A B C D E F G IH

SP OUT/DC IN

J1

10

9

1

PNK/BLK

EXT.

CONT

ORG/WHT

ILLMI

BU

2

REAR L

GRN/BLK
VIOL/BLK

REAR R

EXT.

CONT

ORG/WHT

ILLMI

BU

3

REAR L

GRN/BLK
VIOL/BLK

REAR R

EXT.

CONT

ILLMI

PNK/BLK

ORG/WHT

TEL MUTE

BU

78910
6

11

5

12

BLU

4

13

BLU/WHT

314

RED

2

15

YEL

BLK

1

16

DC CORD

(E30-4782-05)

KDC-X915

GRN

WHT

9

8

WHT/BLK

10

7

GRY/BLK

11

6

GRY

VIOL

512

BLUPNK/BLK

13

4

BLU/WHT

14

3

RED

215

BLKYEL

16 1

DC CORD

(E30-4779-05)

KDC-X815

GRN

WHT

9

8

WHT/BLK

10 7

GRY/BLK

11

6

VIOL GRY

5

13124

BRN

BLU/WHT

14

3

RED

15

2

BLK

YEL

16

1

DC CORD

(E30-4781-05)

KDC-PS9016R

ANT CONT

P. CON

ACC

GND

FRONT L

FRONT R

ANT CONT

P. CON

ACC

GND

FRONT L

FRONT R

P. CON/ANT CON

ACC

GND

87

REAR Lch-

REAR Lch+

FRONT Lch-

FRONT Lch+

FLB

FLA

RLA

Q11

2.2K

47K

FLB
FLA

RLB
RLA

Q13,14

4V PRE DC/DC
CONVERTER A.V.R

4

GRN

WHT

RL+

RL­RR­RR+

EXT. CONT.

TEL MUTE

GRN/BLK
VIOL/BLK

VIOL

PNK/BLK

ORG/WHT

BRN

YEL

1097
11 6
12

13 4

15 2
16 1

8

5

314

WHT/BLK
GRY/BLK
GRY

BLU/WHT

BLU/WHT

REV
BLK

FL+

FL­FR-

FR+

R21 1K

P. CON

5

BU

GND

4

2

68

68574

FL+

FL-

RL+

6

RL-

DC CORD
(E30-4788-05)
KDC-PS9080R

A

13

2

B

1357

FR-

FR+

RR+

RR-

D2

+

D1

C1

C2 0.01

FRONT Rch-

RLB

IC4

0V

D41

C3

REAR Rch-

FRONT Rch+

FRB

FRA

RRB

D32

POWER AMP

TAB

1

2

7.4V

7.4V

D39

D37

1u50

C102

Q13

75

R23

D7

R22 100K

Q1,2

B.U.5V

22KR1100

+

220u16

1311 12 14 15116

32654

P-ANT

P-CON

PHONE

EXT CONT

REAR Rch+

RRA

1K

R26

R15

7.5K

580

R86

14

4.5V

PGND

OUT2-

ST-BY

OUT2+

VCC

356

4

D35

14.4V

+

33K

R192

92

L2

22uH

10.5V

Q14

+

10.4V

C18

100u16

0V

C17 2.2

+

C16 2.2

0V

C15 4.7u16

-10.0V

15

14

Q1

Q2

R2

C5

D3

10u10

C4 0.01

F1 10A

ACC

GND

ILLUM

2
3
4

10K

R16

Q11

EXT.AMP
CON.SW

15

7.2V 0V

OUT1-

OUT1+

SVR

PGND

8

9

7

10

0V

7.4V

7.3V

7.4V

C101

100u10

R189 1K

47K

10K

Q38

Q38

SVR VOL TAGE
COMPULSION
DISCHARGE

83

IC6

18

BOOST V+

2

OSC

CAP+

+

C6 100u6.3

R18

R17

+

Q4,52,53

3

47K

22K

R4 2.2K

8V
CURRENT
AMPLIFICATION

GND

0V

VOUTCAP-

4V PRE DC/DC
CONVERTER

Q12

SMALL LAMP
DETECT SW

R19

1K

C12

W28

Q3

Q3

R3 22K

SW5V

LV

0.01

B.U.

GND

2

1

IN3

15

7.2V 7.3V

4.7K

R184

C98

0.22u50

RR

R25

47

47K

47K

(X25-84XX-XX)

ACGND

OUT3+

1617181920

0V

+

7.3V

C99

1u50

14.4V

750

R187

180K

R186

R185

R151

30K

44

Q15 Q17

R27

7.5K

Q16

R20

100K

+

C14

1u50

430

88

PGND

OUT3-

R152

Q15-20

VCC

R190 100

R191 22K

2.2K
MUT

R29 91K

R28 56K

C22 0.022

VOLTAGE
REGULATOR

7.3V

D27

85

21

D36

Q18

R30 47

OUT4+

22

7.3V

3.2V

R188

Q19

0V

MUTE

232425

D38

D34

24K

OUT4-

D40

R31

PGND

D42

10K

N-FL

C83

0V

360

R153

C81

22u16

D11

R34 4.7K

+

C89

10u16
82

R171

82P

22K

R169

+

Q34-37

9

W26

Q21

R35

560 1W

Q22

0V

2
3
4

R167 10K R168 10K

Q35 Q34

4.7K

R155

R36
22K

10K

10K

CD

FRB
FRA
RRB
RRA

+

1u50

C100

TH1
470

-9.4V

E

2

3

4.7u16

4

W27

D43

+

Q20

C23 0.01

R33 91K

R32 91K

C160 2.2

C24

CN2

IN1

IN2

IN4

SGND

11

12

13

14

+

4.7K

4.7K

RL

R183

C97

0.22u50

10.4V

C21 22u16

C19 2.2

C13

FL

+

0.022

R182

C96

0.22u50

D8

C20 2.2

4.7K

FR

R24 2.7K

R181

C95

7

6

54

0.22u50

5.8V

-9.8V

Q12

D6

34
97

Q4

13.6V

Q53

IC3

1

22K

22K

R5
220

Q52

47K

47K

IC3

A8V
A.V.R

GND
2

R6

15K

3

INOUT

1.26V

0V

1

C7

R8

R9

47K

47K

Q6

+

220u10

22K

22K

C8

R7

4.3K

Q5,6

SW14V

Q5

22K

22K

R11

1.5K

D4

Q7

SERVO +B

Q7

C10 100u10

+

Q54-56

DC/DC
+B AVR

REAR N-FADER FRONT

RCA
CORD

Rch

Rch

GND

Lch

Rch

CN1

C110 0.047

C128 1000P

RR

4V PRE
OP AMP

9.8V 9.8V

IC7 IC8

81

VDD

7

6
5

VSS

R158 2.2KR157 2.2K

4.7K

R156

PRE MUTE

D12

R37 4.7K

1K

R38

Q21,22

P-ANT SW

ILL +B

Lch

GND
2134

C127 1000P

+
C90

R172

22K

R170

0V

5678 9

C26

0.047

C123 1000P

N-FL

RL

N-FR

10u16
82

0V

82P

C84

0V 0V

360

R154

C82

+

22u16

8

Q23

+

C28

0.068

C27

3.3u25

Q24

R39
22K

1/2W

R40 1K

1/2W

Q23-26

P-CON SW

25

4

Q9

22K

22K

22K

C124

0V

R160

C86

Q25

22K

1000P

C88

360

22u16

N-FR

82P

11

GND

C25

C126

0.047

1000P

FR

FR

+

C92

10u16
82

R180

18

0V

22K

R178

2

4

-9.4V

R176 10K

4.7K

3.3M

R162

R166

C68

+

6800P

D13

+

C29

0.1u50

Q26

10K

10K

Q56

+

C161 1u50

6

123 456

+B

FAC

GND

GND

FL+B

DC/DC

4

FAC

Q54

Q55

R245

22K

22K

1.2K

D50

R246 47K

C157 0.47

CN8

PRE
OUT

Lch

C125

1000P

FL

4V PRE
OP AMP

VDD

7

63
5

VSS

0V

R175 10K
R163 2.2KR164 2.2K

Q37Q36

4.7K

R161

R50

R51

Q28 Q29

86

89

22K

R53

90

R177

R165

C67

D19

12K

C30

12K

R52

B.U.
DETECT
SW

FL

+
C91

R179

22K

3.3M

6800P

1000P

5.6K

10u16
82

0V

C87

82P

360

R159

C85

22u16

R57

100K

18K

R58

ACC
DETECT
SW

+

10

R54

3.3K

1/2W

C31

R56

100K

0.01

D20

R59

100K

C51

0.01

1

7