KENWOOD RXD-803E, RXD-853E Service Manual

MINI HiFi COMPONENT SYSTEM

70%

DISC

1

DISC

2

DISC

3

STANDBY

TIMER

DISPLAY/DEMO

MENU

SELECTBACK ENTER

SOUND

CONTROL

TUNING

MODE

M

U

L

T

I

C

O

N

T

R

O

L

REC/ARM

REVERSE

MODE

TAPE EQ.

PHONES

DISC SKIP

OPEN/
CLOSE

E

X

.

B

A

S

S

PUSH
OPEN

PUSH
OPEN

DECK

PLAY

A

DECK

REC/PLAY

B

VOLUME

CONTROL

I/

RXD-803/803E/853/853E/A83

SERVICE MANUAL

(XD-803~A83)**

Panel
(A29-1082-12)

Front glass
(B10-3582-02)

Knob
(K29-7722-04)

© 2000-5/B51-5622-00 (K/K) 3633

Panel ass'y
(A60-1771-31)

Phone jack
(E11-0280-05)

**Refer to page 2 if you want to know system configuration.

In compliance with Federal Regulations, following are repro­ductions of labels on, or inside the product relating to laser
product safety.

Knob
(K29-7721-04)

Illustration is RXD-853(M).

KENWOOD-Crop. certifies this equipment conforms to DHHS
Regulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J.

DANGER : Laser radiation when open and interlock defeated.
AVOID DIRECT EXPOSURE TO BEAM

Unplug the power cord from the power outlet then,
while holding the ENTER key depressed, plug the
power cord again.

÷ Please note that resetting the microcomputer clears the

stored contents and returns to the factory set condition.

Operation to reset

The microcomputer may fall into malfunction (impossibility
to operate, erroneous display, etc.) when the power cord is
unplugged while power is ON or due to an external factor.
In this case, execute the following procedure to reset the
microcomputer and return it to normal condition.

(Main unit only)

FM indoor antenna (1) AM loop antenna (1) Remote
(T90-0836-05) (T90-0852-05)

(T90-0837-05)

(A70-1367-05): RC-853....KPMXY

(A70-1368-05): RC-853E....TEE2

Battery cover (A09-1151-08)

control unit (1)

Use to adapt the plug on the power
cord tothe shape of the wall outlet.
(Accessory only for regions where
use is necessary.)

AC
(E03-0115-05)

plug adaptor (1)

Batteries (R6/AA) (2)

Surround speaker system

Surround speaker (2)

Speaker cord (2)
Speaker stabilizer (8)

Center speaker (1)

Speaker cord (1)
Speaker stabilizer (4)

RXD-803/803E/853/853E/A83

CONTENTS / ACCESSORIES

Contents

CONTENTS / ACCESSORIES / CAUTIONS............. 2

EXTERNAL VIEW.......................................................3

DISASSEMBLY FOR REPAIR....................................3

BLOCK DIAGRAM......................................................4

CIRCUIT DESCRIPTION............................................5

ADJUSTMENT..........................................................11

Accessories

PC BOARD .............................................................. 13

SCHEMATIC DIAGRAM.......................................... 19

EXPLODED VIEW ....................................................35

PARTS LIST..............................................................37

SPECIFICATIONS ......................................Back cover

SYSTEM CONFIGURATION

SYSTEM MAIN UNIT DESTINATION SPEAKER SP CORD PARTS No. SPEAKER SP CORD PARTS No.

XD-803 RXD-803 E LS-N523 E30-5829-08 CRS-N503 E40-5542-05
XD-803E RXD-803E E2 LS-N523 E30-5829-08 CRS-N503 E40-5542-05
XD-853 RXD-853 YMXTE LS-N573 E30-5829-08 CRS-N553 E40-5542-05
XD-853E RXD-853E E2 LS-N573 E30-5829-08 CRS-N553 E40-5542-05
XD-853(M3) RXD-853 M LS-N573(M3) E30-5829-08 CRS-N553 E40-5542-05
XD-A83 RXD-A83 KP LS-N573 E30-5829-08 CRS-N553 E40-5542-05

Cautions

2

ENTER

RXD-803/803E/853/853E/A83

AC 220-

240V~

AC 110-

120V~

GND

FM

75

AM

ANTENNA

+

-

FRONT

SPEAKERS

DIGITAL

OPTICAL

(

6-16

)

R

L

L

R

FRONT

+

-

SURROUND

SPEAKERS

(

12-16

)

R

L

SUPER
WOOFER
PRE OUT

CENTER

SPEAKER

(

6-16

)

OUT

CENTER

SURROUND

SUB

WOOFER

6CH.

INPUT

BOTTOM SIDE

HOW to open the tray if not comes out.

(1) Turn the friction arm counterclockwise
using a screw driver and the like.

(2) Pull out the tray frontwards by hand
when the tray comes just out.

EXTERNAL VIEW

Lock terminal board
(E70-0045-05)

Pin jack
(E63-0116-05)

Lock terminal board
(E70-0046-05)

Cover
(F07-1692-01)

Metallic cabinet
(A01-3739-11)

Lock terminal board
(E70-0052-05)

Pin jack
(E63-0095-05)

Pin jack
(E63-1008-05)

Oscillating module
(W02-1114-15)

DISASSEMBLY FOR REPAIR

Slide switch
(S62-0001-05)

Illustration is RXD-853(M).

3

CLK

PLL-CLK

PLL-CE

PLL-DO

SD
ST

PLL-DATA

S-LEVEL

DE-EMPH

R/P

Lch-OUT

Rch-OUT

+12V

REC

PB AMP

AMP

5V

(600mV)

DECK (1.2V)

CD (1.2V)

Lch-OUT
Rch-OUT

DIGITAL OUT

DATA

POWER RELAY

XIN

XOUT

XCIN

XCOUT

(10MHz)

(32.768KHz)

MAIN CLOCK

TIMMER CLOCK

MPX CLK

DATA

u-COM

TUNER

+

+

C1,C2

A,B

CANCEL

BEAT

OUT

IN

PROTECTION

ATT

MUTE

BEEP

+

PRO LOGIC

5V

TUNER

DECK

CD

VIDEO

DATA

CLK

LIN

LOUT

RIN

ROUT

COUT
SOUT

IFCK

DSP CS
IFDI

ACK

+

+

5V

9V

+

+

+

+

3STEREO

VIRTUAL

STANDBY

TIMER

LED CONTROL

DATA

CLK
STB
RST

Sch

Cch

MUTEATT.

-10dB

Lch

Rch

1M

A120/70

A/B

B1/2

LBASS2

SE CLK

S4

LTRE

LSELO

LIN

LBASS1

SE DATA

SE CE

C OUT

S OUT

S3

S2

S1

C1
C2

C4

C3

SE CE

SE DATA

SE CLK

+12V

+

+

+

+
+
+

+

+

+

S.CchSP

HP-DET

MUTEATT.

-10dB

CD

DECK

6ch INPUT

0dB

-6dB

0dB

TUNER
VIDEO -6dB

0dB

INPUT ATT.

(RECK=H)

R/PERASE

SURROUND

OSC

BIAS

BIAS TRAP

BA3126N

CXA1498S

OTHER ch

H.P.

Rch

Lch

RF AMP
AN8806SB

PICKUP/
LOADING
DRIVER

CD DSP

KEY

(X13)

TUNER PACK

FM75

ANT

B DECK

(X28)

DECK
MECHA

IC2

IC1

IC12

RDS

INPUT ATT .

M62498FP

L,RCH IN

IC1

CD MECHA

CDM-35

DIGITALOUT

(OPTICAL)

MAIN u-COM

M30622MA-A42FP

(X13)

Q3

Q1

IC1

-10dB

MUTE

IC2

IC4

(X14)

AMP

AM

J1

DEMODULATOR

J2

LOUDNESS

INPUT SELECTOR
INPUT VOL.
MAIN VOL.
3BAND TONE

L/R

FRONT

VOL.

SUB

(X32)

P

HEAD SW

PLAY/REC

PLAY BACK
/REC EQ.

A DECK

14,16

IC3

J2

SPEAKERS

(X14)

AMP

BASS REVISE
CIRCUIT

AC/DC
PROTECTION

SLch

SRch

X1

X2

GND

5V
AVR

D33

D32

GND

40V
AVR

-35V

AVR

12V

Q38

Q34

AVR

9V

Q31

5V
AVR

Q32

5V
AVR

X13,Q8

DECK (BIAS)

TUNER

DRIVER

LOADING

PICKUP DRIVER

CD DSP.RF AMP

CONTROL IC

ELECTRIC VOL

-40V

FIL

12V

MAIN

FIP

IC1

ED1

KEY1-3

BASS

VOLUME

FIP
DRIVER

REMOCON INTERFACE

BACKUP

u-COM

Q13,

CN2

IC11

MID TRE

SELECTOR
Zin=100K

DOLBY

DSP

IC14

OTHER CH

VIDEO/6CH

400mV IN

Cch IN

6CH

SLch IN

6CH

SRch IN

6CH

SUB WOOFER

6CH

(X14)

DECK (MECHA)

DOLBY PL DSP

AVR

5V

ELECTRIC VOL

(C,Sch)

(L,Rch)

DOLBY PL DSP

RDS

DECK

CD

D5

GND

-HB

+HB

+LB

-LB

HNA-15MM18T

J4

Cch

AMP

AMP

IC2

IC2

Q8Q6

IC1

IC13

VOLUME

ELECTRIC

J3

S.W. PRE-OUT

Q5 Q7

SPEAKERS

(X07)

E/T TYPE
ONLY

RXD-A83/803/803E/853/853E

E/T/M/X

DESTINATION

4

RXD-803/803E/853/853E/A83

BLOCK DIAGRAM

RXD-803/803E/853/853E/A83

Set Type BAND

Receving Frequency

Range

Channel

Space

IF

RF

FM 87.5MHz

108.0MHz 100kHz +10. 7MHz 25kHz

K,P K1

AM 530kHz

1700 kHz 10kHz +450 kHz 10kHz

FM 87.5MHz

108.0MHz 100kHz +10. 7MHz 25kHz

M,Y K2

AM 530kHz

1610kHz 10kHz +450 kHz 10kHz

FM 87.5MHz

108. 0MHz 50kH z +10. 7MHz 25kHz

M,Y,X E1

AM 531kHz

1602kHz 9kHz +450 kHz 9kHz

FM 87. 5MHz 108.0MHz 50kHz +10.7MHz 25kHz

E,E2

E1

RDS AM 531kHz

1602kHz 9kHz +450 kHz 9kHz

FM 87. 5MHz

108. 0MHz 50kH z +10. 7MHz 25kHz

MW 531kHz

1602kHz 9kHz +450 kHz 9kHzT

E2

RDS

LW 153kHz

72 9kHz 9kHz +450kHz 9kHz

CIRCUIT DESCRIPTION

1. Initialization

1-1 Setting of the Initial Conditions

While pressing the [ENTER] key, plug the AC cord into AC

wall outlet.

1-2 Initializing Operation

• A Microcomputer is initialized for start when the AC power
is turned on when pressing the [ENTER] key.
At that time, CD and cassette mechanisms are also initial­ized.

• During the initial conditions, the display shows *INITIAL­IZE* and after that it will be returned to standby condition.

1-3 Initial Items

(1) AMPLIFIER

• POWER ON/STANDBY STANDBY

• VOLUME 14

• BALANCE CENTER

• INPUT SELECTOR TUNER

• SOURCE DIRECT OFF

• MUTE OFF

• AUTO POWER SAVE OFF

• AUX INPUT LEVEL -1

• AUX INPUT MODE 2ch(EXCEPT E,E2,T)

• DISPLAY MODE AUTO

(2) TUNER

• BAND FM

• FREQUENCY LOWEST FREQUENCY

• AUTO/MONO AUTO

• PRESET CHANNEL – – ch

(3) CASSETTE DECK

• REVERSE MODE REVERSE

• TAPE A/B B

• TAPE DIRECTION FORWARD

(4) CLOCK

• CLOCK 0:00(E,E2,T)/12:00am(OTHER)

• Program Timer Recoding
ON TIME 0:00(E,E2,T)/12:00(OTHER)
OFF TIME 0:00(E,E2,T)/12:00(OTHER)

• Program Timer Play
ON TIME 0:00(E,E2,T)/12:00(OTHER)
OFF TIME 0:00(E,E2,T)/12:00(OTHER)

• Program on Mode OFF

• SLEEP TIMER OFF

(5) Equalizer

• Equalizer OFF

• CUSTOM EQ.1~3 FLAT

• EX. BASS ON

• DSP OFF

• SURROUND OFF

1-4 Mechanism Initialization

1-4-1 CD Mechanism

• If a mechanism error occurs "C" is indicated on the dis­play.

1-4-2 DECK mechanism

• When the initial condition becomes NG for the third
time,decide the error.
The error condition is displayed as "X" on the display.

1-4-3 Error display

• If both mechanism (CD/DECK) error occur, the display is
indicated as follows.

• C

X ERR

2. Destination List of Tuner

5

RXD-803/803E/853/853E/A83

CIRCUIT DESCRIPTION

3. Test Mode

3-1 Setting of the Test Mode

AUX MODE AUX key+AC-ON

TUNER MODE TUNER(BAND) key+AC-ON

TAPE MODE TAPE A(< >) key+AC-ON

CD MODE DISC3 key+AC-ON

MENU key+AC-ON

The oscillation diagnosis(existence of oscillation and measurement of period) of a sub clock is per-

SUB CLOCK OSC

DIAGNOSIS

3-2 Cancel of the test mode

By turning the power off, the system is initialized and the test mode is canceled.

3-3 Contents of the Test Mode

3-3-1 Tuner Test mode

KEY DISPLAY OPERATION

SELECT Normal indication 10 20 30 00 (- -)

MENU Normal indication
BACK TUNING DOWN

SOUND CONTROL

TUNING MODE P. ch DOWN

ENTER

DISPLAY/DEMO FL indication ON FL indication OFF

CD OPEN/CLOSE

formed before the test mode is entered. If the diagnosis result is OK, the system enters the test mode.
If the diagnosis result is NG, the oscillation of the sub clock is diagnosed again. If the result is OK, the
system enters the test mode. If the diagnosis result is continuously NG 5 times
with "ERR1" and "ERR2" displayed.

AUTO • STEREO
MANUAL • MONO

Normal indication

Normal indication

50Hz

100Hz

TUNING UP

P. ch UP

50Hz/50µ 100Hz/75µ

the system stops

3-3-2 Aux Test Mode

KEY DISPLAY OPERATION

Tone

MAX MAX MIN CENTER

DISC 1 Tone MIN

Tone CENTE
DISC 2 Normal indication AUX LEVEL MAX AUX LEVEL MIN
DISC 3 Normal indication Lch MAX Rch MAX CENTER

EX.BASS Normal indication EX. BASS ON EX. BASS OFF

3-3-3 Deck Test Mode

KEY DISPLAY OPERATION

If the REC/ARM key is pressed, the system record for 4 seconds.
Then, it rewinds to the REC starting position and plays back automatically. If the

REC/ARM Normal display

* Mechanism SW Detection

HALF SW DISPLAY HALF SW DISPLAY

A PACK SW "T" (The first dot) A CrO2 SW "A" (The second dot)
B PACK SW "P" (The third dot) B RVS REC SW "E" (The forth dot)

B FWD SW "T" (The sixth dot) B CrO2 SW "E" (The seventh dot)

A PLAY SW "Moon" (Segment) B PLAY SW Sun(Segment)

REC/ARM key is pressed, during the 4 seconds REC operation, the system records fur­ther for 4 seconds, then returns to the starting position of the first 4 seconds REC opera­tion and plays back.

6

RXD-803/803E/853/853E/A83

CIRCUIT DESCRIPTION

3-3-4 CD Test Mode

KEY DISPLAY OPERATION

CD-PLAY/PAUSE 05

(Change the mode
alternately by the stop key.)
DISC 1 01 : STOP

(Cyclically changed in the 07
stop mode only.) 08

STOP 01
TAPE EQ Ex. 01~02 CD track no. up.

TAPE EQ
(Press it more than 400msec.) The pickup travels outward.
REVERSE MODE Ex. 02~01 CD track no. down.
REVERSE MODE
(Press it more than 400msec.) The pickup travels inward.

03

09 TO value FO value

:

** ** Tracking-servo on.

: Tracking-servo off.

Adjustment value/mean value
TB value FB value
TG value FG value

:

Stop (Press it 1time.)
Cancel the test mode. (Press it 2 times.)

CD FF search.

CD FB search.

4. Microprocessor : M30622MC-A70FP(X13,IC4)

4-1 Microprocessor periphery block diagram

X28,IC1

CD MECHA

(CDM-35)

X14,IC1

DOT DRIVER

(LC75711NED)

50

X14,ED1

Vaccume Fluorescent

Display

(HNA-15MM18T)

3

DECK SYSTEM IC

(CXA1498S)

M30622MC-A70FP

6

3

DECK MECHA

5

X13,IC11

2

(CMAT2Z)

SYSREM IC
(M62498FP)

X32,IC12

DSP IC

(MN662748RPMFA)

TUNER PACK

PLL IC

(LC72131)

X13,IC12

RDS IC (E, T, Q)

(BU1923F)

7

RXD-803/803E/853/853E/A83

CIRCUIT DESCRIPTION

4-2 Key Matrix

Input Voltage KEY1 KEY2 KEY3

(V) Pin97 Pin95 Pin94

0.00 0.26 POWER EX. BASS REV. MODE

0.27 0.81 DISPLAY/DEMO KEY OFF REC

0.82 1.37 TUNING MODE CD PLAY/ PAUSE TAPE EQ.

1.38 1.94 MENU BAND OPEN/CLOSE

1.95 2.51 SOUND TAPE B DISC SKIP

2.52 3.07 BACK TAPE A DISC 3

3.08 3.62 SELECT AUX DISC 2

3.63 4.16 ENTER STOP DISC 1

4.17 4.73

4.73 5.00 KEY OFF KEY OFF KEY OFF

4-3 Pin Description of Microprocessor

Pin No. Pin Name I/O Description

1 SLEVEL I RDS signal level input.
2 CE2 I Backup detection input 2. AC ON AC OFF
3 SD I SD detection input.
4 ST I Stereo detection input.
5 PLL CE O PLL IC & E. volume chip enable.
6 RDS DATA I RDS data input.
7 PLL CLK O PLL IC & E. volume clock output.
8 BYTE - GND.

9 CNVSS - GND.
10 XCIN I Timer clock input(32.768kHz).
11 XCOUT O Timer clock output(32.768kHz).
12 RST I Reset signal input. NORMAL RESET
13 X OUT O Main clock output(10MHz).
14 VSS - GND.
15 X IN I Main clock input(10MHz).
16 VCC(BU) - u-com power supply(+5.0V).
17 NMI - Connected to VCC.
18 REM I Signal input of remote control.
19 RDS CLK I RDS clock input.
20 BLKCK I Sub code synchronous signal input. L H Interrupt
21 CE I Back up detection input. AC ON AC OFF
22 BEEP SOUND O Beep sound output.
23 PLL DO I PLL IC data input.
24 CS RELAY O Relay control port for center and surround speakers. ON OFF
25 D XRESET O DSP reset port. RESET
26 DXLAT O DSP latch output.
27 AMUTE O Control port of audio muting.
28 MCLK O CD DSP command clock signal output.
29 STAT I CD DSP status signal input.
30 MDATA O CD DSP command data output.
31 FL DATA O Data output to VFD dot driver.
32 HPDET I Detection port of headphones. NORMAL H/P IN
33 FL CLK O Clock output to VFD dot driver.
34 FL CE O Chip enable output toVFD dot driver.
35 D DATA O DSP data output.
36 D READY I DSP ready signal input.
37 D.SCK O DSP clock output port.
38 SOLB O B deck solenoid control. ON OFF
39 CPM O Capstan control port for deck. ON OFF
40 SOLA O A deck solenoid control. ON OFF

ACTIVE

HL

8

RXD-803/803E/853/853E/A83

CIRCUIT DESCRIPTION

Pin No. Pin Name I/O Description

41 EX CLK15 O Clock output to expander IC(X13,IC15).
42 PS LOAD O Control port of shift/load for expander IC(X13,IC15). SHIFT LOAD
43 PS IN O Data input from expander IC(X13,IC15).
44 EX CLK16 O Clock output to expander IC(X13,IC16).
45 EX DATA O Data output to expander IC(X13,IC16).
46 ATT O -10dB attenunation output. OFF ON
47 FL RST O Reset signal output to VFD dot driver. RESET
48 LED PRO O LED output for prologic. OFF ON
49 LED 3ST O LED output for 3 stereo. OFF ON
50 LED VIR O LED output for virtual. OFF ON
51 M CONT B I Multi control jog input .
52 M CONT A I Multi control jog input .
53 VOL B I Volume encoder input .
54 VOL A I Volume encoder input .
55 LED STBY O Control port of standby LED. OFF ON
56 LED TIMER O Control port of timer LED. OFF ON
57 NC - Unused.
58 OPEN SW I CD open detection switch input.
59 CLOSE SW I CD close detection switch input.
60 TD SW I Traverse down switch input port of CD mechanism.
61 TU SW I Traverse up switch input port of CD mechanism.
62 VCC(BU) - u-com power supply(+5.0V).
63 OPEN O CD motor control output.
64 VSS - GND.
65 CLOSE O CD motor control output.
66 BRKM O CD motor control output.
67 RTL O Rotary motor opposite direction(CCW) output.
68 RTR O Rotary motor positive direction(CW) output.
69 DC OFF O Power control of CD DSP IC. ON OFF
70 CD PROT I CD protection input(Only at selector CD). NORMAL PRO. ON
71 SLT SW I CD start limit switch input.
72 MLD O CD DSP command load signal output.
73 SQCK O CD sub code clock output.
74 SUBQ I CD sub code input.
75 D MUTE O CD DSP muting output.
76 XRST O CD DSP IC reset control. RESET
77 PHTR I CD mecha. Stop switch input.

78 PS SW I
79 TU ON/OFF O Tuner power on/off output.

80 REC/PLAY O Deck recording/playback control. RECORDING PLAYBACK
81 BIAS O Deck bias control. OFF ON
82 POWER O Power relay control.
83 RELAY O Control port of speaker relay.
84 EV CLK O Clock output to E..volume.
85 EV DATA O Data output to E..volume data output.
86 EMPHASIS O Tuner emphasis output.
87 EPROM DATA I/O Expander ROM data input/output.
88 EPROM CLK O Expander ROM clock output.
89 PROTECT I Detection port of protection.
90 SPEANA I Input port of music signal.
91 TYPE I Discrimination of tuner destination.
92 BPH I B deck reel sensor input.
93 APH I A deck reel sensor input.

94,95 KEY3,KEY2 I A/D key input(key3,key2).

96 AVSS - GND.
97 KEY1 I A/D key input(key1).
98 VREF - A/D reference voltage input.
99 AVCC(BU) - u-com power supply(+5.0V).

100 PLL DATA O PLL IC & E..volume data output.

Tray position & disc detector switch input port of
CD mechanism.

ACTIVE

HL

9

RXD-803/803E/853/853E/A83

CIRCUIT DESCRIPTION

4-4 Description of expander IC

TC74HC166AP(X13,IC15)

Pin No. Pin Name I/O Description

1 SI I NO USED
2 A-PLAY I A DECK Head Position Detection Switch Input H = OFF L = ON
3 B-PACK I B DECK Cassette Tape Detection Switch Input L = ON H = OFF
4 R-REC I B DECK Reverse Recording prohibition Detection Switch Input H = prohibit L = permit
5 B-PLAY I B DECK Head Position Detection Switch Input L = ON H = OFF
6 CK INH I NO USED
7 PSCLK I CLOCK INPUT
8 GND - GND

9 CLR I CONNECTED TO VDD
10 A-CrO2 I A DECK CrO2 Detection Switch Input H = CrO2 L = Normal
11 B-CrO2 I B DECK CrO2 Detection Switch Input H = CrO2 L = Normal
12 F-REC I B DECK Forward Recording prohibition Detection Switch Input H = prohibit L = permit
13 PSDATA O DATA OUTPUT
14 A-PACK I A DECK Cassette Tape Detection Switch Input L = ON H = OFF
15 PSLOAD I SHIFT/LOAD CONTROL
16 Vdd - VDD

BU2090F(X13,IC16)

Pin No. Pin Name I/O Description

1 Vss - GND

2 DATA I DATA INPUT TERMINAL

3 CLK I CLOCK INPUT

4 BIAS O NC

5 NOR O DECK Normal/CrO2 Changeover Control H=Normal L=CrO2

6 B SOL O NC

7 A SOL O NC

8 CPM O NC

9 LMUTE O DECK Line Mute Control H= MUTE OFF L= MUTE ON
10 B-EQ O B DECK Play Back Equalizer Control
11 R MUTE O DECK Recording Mute Control
12 A-EQ O A DECK Play Back Equalizer Control
13 A/B O DECK A/B Changeover Control L=A DECK H=B DECK
14 R/P O NC
15 BEAT.C O DECK Beat Cancel On/Off Changeover Control H= ON L= OFF
16 Vdd - POWER SUPPLY(+5V)

10

AC 220-

240V~

AC 110-

120V~

GND

FM
75

AM

ANTENNA

+

-

FRONT

SPEAKERS

DIGITAL

OPTICAL

(

6-16

)

R

L

L

R

FRONT

+

-

SURROUND

SPEAKERS

(

12-16

)

R

L

SUPER
WOOFER
PRE OUT

CENTER

SPEAKER

(

6-16

)

OUT

CENTER

SURROUND

SUB

WOOFER

6CH.
INPUT

Oscilloscope

AC voltmeter

Frequency counter

AC voltmeter

AG

{

(A) (B)

X13, CN1

L-PLAY

R-PLAY

GND

28

29

30

31

RVS FWD

NO. ITEM INPUT SETTING

OUTPUT
SETTING

CASSETTE TAPE

DECK SETTING

ALIGNMENT

POINTS

ALIGN FOR FIG.

0dBs = 0.775V

I Cassette mechanism unit (Adjustment of the REC / PLAY head)

(1)

Demagnetization

and cleaning

Power : OFF

Demagnetization,

cleaning, PLAY

Recording

head, erase

head, capstan

pinch roller

Demagnetize the REC / PLAY head
with the head eraser. Clean the REC /
PLAY head, erase head, capstan and
pinch roller using a cotton swab slightly
damped with alcohol.

(2)

Azimuth of the

REC / PLAY

head

SCC-1727

TCC-153
MTT-114

10kHz, -10dB

(B) PLAY

Adjust the output to maximum and
adjust the azimuth adjustment screw
for the Lissajours waveform pattern of
the oscilloscope to become close to a
45ß straight line.

II PC BOARD ADJUSTMENT

(1)

TAPE SPEED

(NORMAL)

TCC-110
MTT-111

SCC-1727

3kHZ

(B) PLAY VR5

Adjust the tape speed so that 3kHz is
obtained at the center of the tape.

III PC board adjustment.

(1)

PLAYBACK

LEVEL

MTT-150

400Hz

(B) PLAY

VR 3 (L)

VR 4 (R)

Adjust the playback output to -2.5dBs.

MTT-256, SCC-1727

315Hz

Adjust the playback output to -5.5dBs.

MTT-256U, TCC-120

315 Hz

Adjust the playback output to -1.5dBs.

(2) BIAS CURRENT

(A)
Adjust the AG for the
output of the DECK to

become 12.5KHz -20dBs.

400Hz/12.5kHz (AC-224)

(B) REC PLAY

VR 1 (L)

VR 2 (R)

Record 400Hz and 12.5kHz alternately,
and adjust the bias current adjustment
potentiometer for the playback levels to
become the same.

RXD-803/803E/853/853E/A83

ADJUSTMENT

CD player adjustment

INPUT

SETTINGS

1. While pressing the "DISC 3" key, turn the power on to enter the test mode.

2. Load a disc on disc 1 tray.

LASER CURRENT

1

CHECK

Test disc

Type 4

Note:
Type 4 disc : SONY YEDS-18 Test Disc or equivalent.
LPF: Around 47 kΩ+ 390 pF or so.
Step 1~4 are in Test Mode.

Cassette Deck adjustment

OUTPUT

SETTINGS

Connect the DC

voltmeter to

CN6(pin1 and 2)

on X32.

PLAYER

SETTINGS

Press the

PLAY/PAUSE key,

then confirm that the

display is 03 or 05.

ALIGNMENT

POINTS

– 0.5±0.2V

ALIGN FOR

FIG.No. ITEM

Measurement Equipment Connections

11