JVC RM-RE9000 Service Manual

SERVICE MANUAL

SYSTEM CONTROLLER

RM-RE9000

RM-RE9000

Area Suffix

PRESENCE

SPEAKER

1

1

2

EACH

4

3

5

2

6

1

7

8

ALL

AMP GAIN

SOURCE GAIN

PRESET

PRESET

Contents

Safety Precautions
Adjustment method
Description of major ICs

2

MASTER VOLUME

dB

dB

LINE 1 LINE 2 LINE 3

MUTING

-180û

LINE 5LINE 4 LINE 6

ATT

DISPLAYSLEEP

EXT

PROCESSOR

PHASE

E

Continental Europe

1-2
1-3
1-6~8

COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.

No.20934

Apr. 2001

RM-RE9000

1. This design of this product contains special hardware and many circuits and components specially for safety
purposes. For continued protection, no changes should be made to the original design unless authorized in
writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services
should be performed by qualified personnel only.

2. Alterations of the design or circuitry of the product should not be made. Any design alterations of the product
should not be made. Any design alterations or additions will void the manufacturer`s warranty and will further
relieve the manufacture of responsibility for personal injury or property damage resulting therefrom.

3. Many electrical and mechanical parts in the products have special safety-related characteristics. These

characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily
be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which
have these special safety characteristics are identified in the Parts List of Service Manual. Electrical
components having such features are identified by shading on the schematics and by ( ) on the Parts List in
the Service Manual. The use of a substitute replacement which does not have the same safety characteristics
as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or
other hazards.

4. The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be
separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of
electric shock and fire hazard. When service is required, the original lead routing and dress should be
observed, and it should be confirmed that they have been returned to normal, after re-assembling.

5. Leakage currnet check (Electrical shock hazard testing)
After re-assembling the product, always perform an isolation check on the exposed metal parts of the product
(antenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure the
product is safe to operate without danger of electrical shock.
Do not use a line isolation transformer during this check.

Plug the AC line cord directly into the AC outlet. Using a "Leakage Current Tester", measure the leakage
current from each exposed metal parts of the cabinet, particularly any exposed metal part having a return
path to the chassis, to a known good earth ground. Any leakage current must not exceed 0.5mA AC (r.m.s.).

Alternate check method
Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 ohms per volt or more
sensitivity in the following manner. Connect a 1,500 10W resistor paralleled by a 0.15 F AC-type capacitor
between an exposed metal part and a known good earth ground.
Measure the AC voltage across the resistor with the AC
voltmeter.
Move the resistor connection to eachexposed metal part,
particularly any exposed metal part having a return path to
the chassis, and meausre the AC voltage across the resistor.
Now, reverse the plug in the AC outlet and repeat each
measurement. voltage measured Any must not exceed 0.75 V
AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.).

0.15 F AC TYPE

1500 10W

Good earth ground

AC VOLTMETER
(Having 1000
ohms/volts,
or more sensitivity)

Place this
probe on
each exposed
metal part.

!

1. This equipment has been designed and manufactured to meet international safety standards.

2. It is the legal responsibility of the repairer to ensure that these safety standards are maintained.

3. Repairs must be made in accordance with the relevant safety standards.

4. It is essential that safety critical components are replaced by approved parts.

5. If mains voltage selector is provided, check setting for local voltage.

Burrs formed during molding may
be left over on some parts of the
chassis. Therefore, pay attention to
such burrs in the case of
preforming repair of this system.

In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the
parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " "
mark nearby are critical for safety.
When replacing them, be sure to use the parts of the same type and rating as specified by the manufacturer.
(Except the JC version)

1-2

Disassembly method

RM-RE9000

Removing the rear cover (See Fig.1 to 3)

1.

Remove the four screws A on the front with a
hexagon wrench.

2.

Place the reverse side of the set upward.

3.

After taking off the cushions from the four places,
remove the four screws B at the inside of the rear
cover.

4.

Remove the screw B' at the inside of the battery
cover.

5.

Remove the rear cover and the front panel
assembly. (Because they should have been tightly
engaged, remove them with due care.)

6.

Remove the battery holder board assembly from the
rear cover by pulling it up.

A

Front panel assembly

B

Rear cover

B

Fig.1

B'

Fig.2

A

B

B

Battery holder board
assembly

Fig.3

1-3

RM-RE9000

Removing the remote controller
transmission board assembly (See Fig.4)

1.

Remove the rear cover.

2.

Remove the two screws C attaching the remote
controller transmission board assembly.

3.

Remove the connector CN201 connecting the main
board assembly to the remote controller transmission
board assembly.

Removing the main board assembly

(See Fig.5 to 7)

Remove the rear cover.

1.

Remove the remote controller transmission board

2.
assembly.

Main board assembly

C

Fig.4

C

Remote controller
transmission board
assembly

CN201

After taking off the screws D & E attaching the

3.
volume knob and the rotary switch, remove their
knobs.

After taking off the nut F attaching the volume board

4.
assembly with a box-type driver, remove the volume
board assembly.

After taking off the nut G attaching the rotary switch

5.
board assembly with a box-type driver, remove the
rotary switch board assembly.

Remove the fourteen screws H attaching the main

6.
board assembly.

Remove the connector CN103 connecting the main

7.
board assembly to the volume board assembly, and
the connector CN301 connecting the main board
assembly to the rotary switch board assembly,
respectively.

Rotary
switch knob

H

G

E

D

Fig.5

Rotary switch knob

F

Fig.6

Rotary switch board assembly

Volume knob

Volume knob

1-4

Main board assembly

Fig.7

CN103

Volume board assembly

CN301

H

Removing the modular jack board
assembly (See Fig.8)

1.

Remove the rear cover.

2.

Remove the remote controller transmission board
assembly.

3.

Remove the main board assembly.

4.

Remove the two screws I attaching the modular jack
board assembly.

5.

Remove the connector CN501 connecting the main
board assembly to the connector terminal board
assembly.

Modular jack board

assembly

CN501

RM-RE9000

I

I

Fig.8

Removing the switch board (See Fig.9)

1.

Remove the rear cover.

2.

Remove the remote controller transmission board
assembly.

3.

Remove the main board assembly.

4.

Remove the modular jack board assembly.

5.

Remove the seven screws J attaching the switch
board.

6.

Remove the board by lifting it.

Removing the top panel (See Fig.10)

1.

Remove the rear cover.

2.

Remove the remote controller transmission board
assembly.

3.

Remove the main board assembly.

4.

Remove the modular jack board assembly.

5.

Remove the board.

6.

Remove the two screws K attaching the lens and the
top panel.

J

Lens

Switch board

J

K

J

J

J

Fig.9

J

J

K

Reminder when the top panel is
reassembled

1.

When the top panel is reassembled, use the screws
with the specified size (M3x8mm) without fail
(Screws marked K).
Using longer screws may damage the top panel and
cause the top panel unstable.

Top panel

Fig.10

1-5

RM-RE9000

Description of major ICs

MN101CP117(IC101) : System controller

1.Pin layout

~

3444

1

33

~

11

12

2.Pin function

Pin

Symbol Symbol

No.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

KY13

ROT1

ROT2

ROT3

ROT4

ROT5

ROT6

N.C

N.C

VOL1

VOL2

AD

VDD

OSC2

OSC1

VSS

NC

SDATO

BRI

SCLK

KY1

RMOUT

~

~

23

22

Key input 8

Rotary output 1

Rotary output 2

Rotary output 3

Rotary input 1

Rotary input 2

Rotary input 3

GND

GND

Volume input 1

Volume input 2

AD input

2.0V~5.0V Supply

clock output

clock input

0.0V

Serial output data

Blight adjustment

Serial clock

Key input 1

Remocon output

I/O I/O

Pin
No.

I

O

O

O

I

I

I

I

I

I

I

I

O

I

O

O

O

O

O

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

CK1

LATCH1

RST1

SIN1

WAKE

KY2

KY3

KY4

KY5

KY6

CK2

LATCH2

RST2

SIN2

KY7

KY8

RST

MMOD

KY9

KY10

KY11

KY12

7segment circuit clock 1

7segment circuit latch output 1

7segment circuit latch reset 1

Output data 1

Wake

Key input 2

Key input 3

Key input

Key output 1

Key output 2

LED circuit clock 2

LED circuit latch output 2

LED circuit reset 2

LED circuit data output 2

Key output 3

Key output 4

Reset

GND

Key output 5

Key input 5

Key input 6

Key input 7

FunctionFunction

O

O

O

O

O

O

O

O

O

O

O

O

O

I

I

I

I

I

I

I

I

I

1-6

TC74VHC123AF-X(IC112) :Shift register for relay control

1. Pin layout

16

15

14

13

12

11

10

9

Vcc

1Rx/Cx

1Cx

1Q

2Q

2CLR

2B

2A

1A

1B

1CLR

1Q

2Q

1Cx

2Rx/Cx

GND

1

2

3

4

5

6

7

8

(TOP VIEW)

RM-RE9000

2. Block diagram

X/CX

R

C

X

A

B

CLR

3. Timing diagram

A

B

CLR

RX/CX

Q

V

CC

Vref Vref

L

-

Q

Q

N

+

P

V

CC

R

D

Q

F/F

CK

Q

C2

H

+

-

Q

Q

t

rr

V

IH

VIL
VIH

VIL
VIH

VIL
VCC

V

refH

V

refL

GND

VOH

VOL

Q

t

w OUT

t

w OUT

t

w OUT+

t

rr

VOL

1-7

VOH

RM-RE9000

TC74VHC08F-X (IC112) :Data line buffer

1. Pin. layout 2. True table

1A

1B

1Y

2A

2B

2Y

GND

A

14

13

12

11

10

9

8

Vcc

4B

4A

4Y

3B

3A

3Y

L

L

H

H

1

2

3

4

5

6

7

(TOP VIEW)

B

L

H

L

HH

X : Don't Care

Y

L

L

L

1-8

< MEMO >

RM-RE9000

1-9

RM-RE9000

VICTOR COMPANY OF JAPAN, LIMITED

AUDIO & COMMUNICATION BUSINESS DIVISION
PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan

(No.20934)

Printed in Japan
200104(V)