Panasonic RM-1500A Service Manual

PANA-12446

ORDER

NO.

GAD8712174C1

Service

INTEGRATED

AUDIO SYSTEM

CUSTOM-MADE FOR HONDA

Manual

RM-1500A

I

NeB

RM"1500A MECHANISM SERIES

• SPECIFICATIONS

General: Power

Source:

Test

Voltage:

Power

Consumption: Power Output: Dimensions: Weight:

FM

Tuner Frequency Usable SignaltoNoise Ratio: Stereo THO: IF AM Frequency Usable Selectivity: IF

Section:

Range:

Sensitivity:

Separation:

Frequency:

Tuner

Section:

Range:

Sensitivity:

Frequency:

OC;12V(Negative Ground only) OC;14V

at

maximum

8A (Memory back-up 1mAl Head

set:1W(80Ich)

Main amp: 24W (30Ieh)

101.6"(W)x 34.4"(H) x 124"(0) (258x87.5x315)mm

51b

70z (2.56kg) without bracket

FM;87.5-107.9MHz 10dB(SIN 30dS) 55dB 35dB

at

0.5%

10.7MHz AM;530-1620kHz

30dB (SIN 20dB) 50dB(±10kHz) 450kHz

Weights and dimensions shown are approximate. Design and specifications are subject

HONDA./Panasonicw

1kHz

power

Cassette Deck Section: Tape System:

output

MalOuahlta servlcea Company

50

Meadowland Parkway.

secaucus,

Stereo Track

Intercom Mie Input Impedance: Head AF Section: Auto Tone

to

New Jersey 0709"

Separation:

System:

Section:

set

Output: 1W(8Q/ch)

volume

level:

volume

level: +8 - -8dS

change

without

notice.

Pan••onic HawIII, Inc.

91-238, Kauhl Sl. Ewa Beach

P.O.

Box

Honolulu, Hawaii 96808.Q774

Auto-reverse 35dBat1kHz 4-track2channel stereo

2000

+8 - +16dS

774

playback

Pln.,onlc

Sal

••

Inlanterla,

Induslrial

Complny,

Inc::

..

Park

RiCO

Dtvl.lon01Mat.us"lta

of

Puerto Rico.

Aye.65De

Victoria

Carolina, Puerto

Elacillc

Km.9.7

00630

RM·1500A

CONTENTS

ITEM

• LocationofControls and Components . . , 3

• Audio System Connection

• Disassembly Instructions. . .

• Schematic Diagram (MaIO)... .

• Schematic Diagram (Volume/Tone, Power, Connector, SWitch Motor/Plunger, Back-Up/Plunger)

• Circuit Board and Wiring Connection

• Measurements and

• IC9

(~PD1714GA929)

• Cabinet Parts Location

• Mechanism Parts

• Parts List . .

ThiS service manualISonly

IS

Imappllcabletooptional

It

AdJustments.............

Each Termmal

Location.

..

Diagram.

Function

..

. .

.. ..

. .

.. ..

applicabletomodel RM·1500A.

eqUipment and accessones.

..

.....

..

.

..

. . 4

.....

..

.

..

'"

..

. .

..

.

.... . 19

..

.10-12

13~15

..

16~18

20~22

...23,

.

25~32

PAGE

.5,6

7-9

24

-2-

LOCATION OF CONTROLS AND COMPONENTS

(CONNECTOR)

RM-1500A

TAPE/RADIO SELECTOR

BAND SELECTOR

(AM/FM)

TAPE

SLOT-----t

STOP/EJECT

(

..

)

POWER

VOLUME CONTROL (VOL)

INTERCOM INTERCOM MIC LEVEL CONTROL

(IC

VOL)

<

CONNECTOR>

DISPLAY CONNECTOR

CB

CONNECTOR RADIO CONNECTOR

•

• CB CONNECTOR

1.

NOT USED

2.

CB

AF

HS

3. CB

AF

SP

4. NOT USED

5. NOT USED

6.

CB

ON

BUTTON-~H+if-----I

SWITCH/------'

POWER

7.

8. HS/SP

9.

10. GND OUT

11. CB MIC OUT

12. CB MIC E

----_+_.

-------....

SWITCH/---.-/

8EXT

CB AF E

CB AUDIO MUTE

ANT

,..----+--HEAD

r-t---PRESET

,..-----itit-t+--et-AM

r-----'---++++---FAST

t----tt++---

'-------AUTO

'--------INTERCOM

• RADIO CONNECTOR

13. MIC

14. MIC E

15. HS OUT E

16.

HS

17.

FR

18.

FR

19. SPEED PULSE

20. ACC

21. MIC

22. MIC E

23. HS OUT R

24. GND

'---TONE

PA

OUT L

SP e

SP

(£)

DR

(CH)

SET/SPEAKER SELECTOR

CHANNEL SELECTOR

BIENCE SWITCH

(AMB)

PRESET MEMORY SWITCH

(MEMO)

BUTTON (

FAST BUTTON

CONTROL (TONE)

VOLUME LEVEL

CONTROL (AVC)

MUTE LEVEL

CONTROL (MUTE)

25. FL

26.

< 27. TUNE DN

28. MUTE

29. TUNE UP

30. BACK UP

• DISPLAY CONNECTOR

31. DATA

32. GND

33. BK

34. CLOCK

35. LOAD

36. K·MUTE

........

(~~)

SP

FL SP e

®

)

iOPTION------------------------------..

I CB Transceiver, CB Antenna, Head Set, Passenger Controler. Fader Volume, Rear Speaker.

-3-

RM·1500A

AUDIO SYSTEM CONNECTION

MAIN UNIT RM

1500A

ANTENNA

DISPLAY

1---------,

I

,-

PASSENGER L

I CONTROL I I

<--

(OPTION) I

S)S)

HEAD SET HEAD SET

1------------1

(PA)

I

CB

I ANTENNA (OPTION) I

(DR)

'J

'----r

-

I (OPTION) I

:

(

FRONT

';..--,

L-;EA~

I FADER I

--J

I

I '-. VOLUME I

L

AUDIO SWITCH

--------1~

c::J

PRO

TUN f(Jl

/\

V

~

MUTE

~

I I

I CB I

I I

L-

_

__

...J

-4-

o

DISASSEMBLY INSTRUCTIONS

RM·15QOA

(B)

(A)

(C)

(A)

Fig. 1

(0)

Fig. 3

Fig. 2

(N)

.D.

~------

-

(T)

Fig. 7

Cassette Compartment

Fig. 10

Push

Fig. 5

(5)

Fig.6

(Z)

(Y)

the

Eject

Button

(Y)

Fig. 8

Fig. 9

-5-

RM·1500A

Steps

1 Screw 2 1

3

4

S Cut the wire 6 7 S

9 Push 10 11 12 13 14 15 16 17 1S 19 20 21

22

23 24 25

26

remove-

ShownInFig

-

2 Main

2 Screw

3

4 Power

4

5

6 Screw 7 6

5

6 Power Supply CirCUit Board

To

Bottom

Cover

Circuit

Board

Amp

(*1)

Ass'y

Circuit

Unit

Board

CirCUit

Upper Cabinet

Mechanism

Back

up/Plunger

Board

Volume CirCUit Board Screw

Remove -

(3xS)mm

Screw

(3x

12)mm

(3x6)

Screw Socket (CN101, CN102, CN103, CN104, CN10S,

Screw

Knob

Screw Screw Screw(3x S)mm Socket (CN409, CN410) Screw Socket (CN617, CNS01) Screw Socket (CN61S) . Screw(3xS)mm Screw

Socket (CN30S, CN313) Nut Angle Screw(3x 6)mm

Remove arrow

mm

CN106, CN107)

tie

(3x

12)mm

(3x

10)mm

..

the

lock

leverInthe

(3x

12)mm

..

(3xS)mm

the

power supply

I2l

. .

directionofarrow

CirCUit

boadInthe

...

CD

direction

(A)x4

..

(B)x2 (C)x3

-

(O)Xf

.,

(E)x6 (F)x6 (G)x4

(H)xS

(I

)xS

(J)x

1 (K)x4 (L)

x 2 (M)XS (N)x2 (o)x

1

(P)x

1 (Q)x2 (R)x2 (S)x2 (T)x2 (U)x2 (V)x5 (W)x1 (X)x2

of

.

(*.1) <*.2)

, Be

suretofold at the

27

2S

S

9

Switch ChaSSIS

SWitch CirCUit Board

29

30 31

One

10

of

the lugsISbent,soafter

Cassette

modate the angleofthe lug When removing the

lose them.

~"/

(~)

switch

~.

"', "",

-'

t=:::~

.

\

rio(

/

I

ffJ..o'''--

•

.J>

mark so that the markISon

CirCUit Board

(*2)

Compartment

removmg the screw

CirCUit board chaSSIS,

:,

Angle

the

outSide

Screw

(3x10)

mm

Socket (CN702) Lamp

To remove

In

the

directionofarrow @

Push the eject Screw

(3x

(M),

remove

drive pin and

..

the

lamp, use a standard screwdnver and turn

button

10)mm

the

circuit

spnng

Mechanism attachment

(1)

Push

the

armtoraise the lever

(2)

Attach

the

mechanism by mser· tmg the lever into the at the shown angle

-6-

board

may come

mechanism

while

turnmgItto

off,sobe careful

(y)x

(Z)

x 1

(

a)x4

(b)x2

accom·

not

10

to

\

RM·1500A

SCHEMATIC DIAGRAM (MAIN)

2

3

4 5 6

MAIN

CIRCUIT

7

8

LAI175

FM

A

9 10

IC

I

FRONT

ENO

RVI

FM

IC2

LA

1140

IF 8 DET

11

,

12

FM

NOISE

IC3

STK3400A

BRANKER,

13

MPX

Note.

5202

1-5202·3

2

VR1

3

DC

voltage measurement are taken With electronics voltmeter from

negative terminal

No

B

c

mark

4 The mark(~shows test point, e g 5 The supply parts numberIs describedalone In the replacement parts

list

• Thl. schematic diagram maybemodified

developmentofnew technology

c:=::>

RadiO

I

I."

Radio (AM) Signal

....

Tape (PLAY) Signal

~

Tape/RadiO Signal

-+-

+B Voltage Line

c:=::>

FM

~

AM

~

FM/AM VCO Signal Line

tJ

00

(>

MIC Signal Line

-

...

- +B (BACK

Head

switchIn"FWD"

(F

FWD,RREV)

FM

veo

of

battery

Playback poSition, <

(FM) Signal

VCO

veo

Signal Line

Signal

Une

UP)

Signal

line l,.me

lme

line

adJustment

>

«

line

posItion

VR

FM

( )

» FF/REW

_=te8t

It

Iny

AM

POint

time with the

D

E

F

G

c:::J

1

RADIO

LCh

r

,FWD

Rch

I L

PLAYBACK

HEAD

lch

r

l

REV

LR

eNIOI

ANT

E

TO

ANT

040

2SB709RTW

swrTCHING

015

2S060lR

L P F

016

A

25060lR

AF

AGC

017

25060lR

H P F

D

r---+-----ll-----

025,27

2S060lRTW

SWITCHING

(AUTO TUNING I

.JVVv-----

'\11047K

-----

011,12

2SKI84GR

AM

RF'

AMP

HEAD

CIRCUIT

-

QI3,I4

2S060lRTW

SWITCHING

D13

RVDKV

123518

022,23

25D60lRTW

SWITCHING

018

2SC2295BTW

IF

RI4'1

100

AMP

~~;;

2~~~1

--

ch

--

R208

R20Q

10K

iu~

049,50

25D60lRTW

BUFFER

AMP

®

H

-7-

TO

BACK-Uo/

PLUNGER

CIRCUIT

(eNGle)

MOTOR/

CIRCUIT

(eN 801)

AND

PLUNGER

CNI06

PRO(J0

PRO<l

GND

TAPE

SWD

TAPE

FF

IREY{

t

5V

(±)

ON

Vel;

IN

019

25C2491'

SWITCHING

8-

,~

050

Q36

2SK160t<4TW

LOW PASS

037

2SD60lRTW

LOW

PASS

FILTER

----------------

,"

RM·1500A

6

RCUIT

\SVQq

03

~

Q(.--e~---O-I----+--_=-'::=+==~----~~

)

QII,I2

2SKI84GR

AM

RF

QI3,I4

25060lRTW

SWITCHING

AMP

3SK"4L

FM RF

AMP

RM·1500A

7

SCHEMATIC DIAGRAM (MAIN)

Ie t

LAI175

FRONT

9

END

8

FM

10

018

2SC2295BTW

IF

RVILA

FM

AMP

IC2

IF

11

1140

a DET

iT

IC6

HAI2429

AM NOISE

BRANKER

~~~

2~~~1

iu~

049,50

2S060lRTW

BUFFER

RIOt

21

CIOq

50VI

AMP

12

FM

IC3

STI<3400A

NOISE

13

BRANI<ER

,MPX

14

Q3,4

250601

AF

AMP

RTW

15

16

IC4

RVIBA6133

AMBIENCE

17

18

Rch

Lc.h

G~D

HSjsP

AF

SWD

OUT

vee

Ace

TO

VOLUlo1o/

TONE

CIRCUIT

(CW302

)

Ace

HS/SP

HANDLE

~~lnD'o

MUTE

TUNE

09

UN2214TW

QI5

~

C"

C'I

LD

0

cr

2S060lR

L P F

016

2SD60lR

AF AGC

®

QI7

2S060lR

H P F

Q25,27

2S060lRTW

SWITCHING

(AUTO

TUNING'-

,r,\

028

'1',,4

2SD5960V2tw

SWITCHING

;:

~O-'

~BL

;n

~

r

SWITCHING

Q3.

2S060lRTW

SWITCHING

ti1A151

WATW

rC!1~

Q3~138>

041

2S060lSTW

SWITCHING

Q!~

2SCJ384R

REGULATOR

TUNE

GND

BACK

ACC<LAMP)

D

A

---+----~--------------....,

RHO

47K

034

2SD60lRTW

SWITCHING

038,

""

I

..

I~

"4-

'14

'14,

<14,

fJA

14\

~

t~1

(,'f<:1>

4\>--(4O)o-<:fj)-(38J-..

SI4 SI5

114\

(,If

','1'

crr~li)-o(35)....(34-)--(.m

516

SI'1

Sl8

!9

2S8709RTW

SWITCHING

14-114\

(l.~

~':

I~)

,I~,

S/<1

S20

S21

'14

{~

__

GND

KS

K'2

KS

K3

K1

KS

ALL

DOWN

UP

(LAMP)

I

2

3

TO

CIRCUIT

(CN505)

TO

CIRCUIT

(eN/03 )

DISPLAY

CONNECTOR

SWITCH

OUTPUT

019

2SC2497R

SWITCHINC

R20Q

10K

8-

Ie

+

Q36

2SKI60K4TW

LOW

PASS

FILTER

037

2S060rRTW

LOW

PASS

FILTER

9

047,48

RVTfMG5TX

SWITCHING

IC9

UPOl714GA929

PLL

a CONTROLLER

-9-

RM·1500A

SCHEMATIC DIAGRAM

4 5

0314

UN2214TW

SWITCHING

VOLUME

/ TONE

030,1,

2SC

16220lnw

BUFFER

2

CIRC~_IT

30~

0302.306

25060

Ave

AMP

IRTX

Q303

25D60lRTW

TONE AMP

3

_

0304

25D60lRTW

SWITCHING

A

p

c~,

V"t',:N~(...

CiND

J

!On

~,~

t

SWC

iN

!I\

~~~

Ace

TO

CIRCU':

(C~

B

0307

2S060lRTX

0308

2SK332D

VARIABLE

RESISTOR

TO~E

c

AMP

IC302

IC304

D

IC303

RVTC4~28BP

E

~~.L-+----------It--------+-+-If-+----6-_--------+--------------+-'

FLIPFLOP

0309

2SD60lRTX

SWITCHING

C348

SOVI

0311

2SD60lRTW

INTCOM

AMP

uI

M51203TL

MUTE

IC304

CONTROLLER

6 7

Q315

UN2214

TX

SWITCH ING

r-

I I

[_

~15IItATW

1

.J

308

(VOLUME/TONE, POWER, CONNECTOR, SWITCH, MOTOR/PLUNGER, BACK-UP/PLUNGER)

8 9

AMP

CIRCUI.T _

.....

--+

'----------------.-----------------~

0406.409

2SD60lRTW

AF

AMP

2SB709ARTW

SWITCHING

.-

(SPI

(,1407

2S060lRTW

SWITCHING

2SCI622DI1TW

AF

(-+BI

Q4DB

0401,402

AMP

.....0

£::b

.

(HS)

10

C434

0.0

IC402

I

IC401

RVITA1230P

POWER

AMPIHSI

11

12

OJ

~l)

'15

~;

~~

.Ace

-

Ace

FR

SP

~R

SF'(:;'

G~m

GND

IC402,403

TA7Z95P

POWER

AMP

ISPI

fr

mr:

E1

~0~

~

I

~~ (~

C~)

J

,.

13

Note.:

1.

51·1--81·6

2.

S201·1-8201·3

3,

8204 Mute

4.

8301 Power

5.

8305

6. VR301-1, VR301·2 :

7.

VR302·1, VR302-2 :

8. VR303-1, VR303-2 : Tone con!

9. VR304 AVC

VR305 : Intercom

10.

11. VR306 :

12. DC

voltage Yoltmeter No

marK

c==J RADIO.

l ) Speaker.

[I

13.

The

'4.

The parts list.

• This schematic development

c:::o

.....

...

~

-+-

r::i$

0000

=

-+--

from

•..

Playback

]]

Intercom

mark

e-)

supply

Radio Radio Tape Tape/Radio +8

Voltage

FM veo

AM

VCO FM/AM MIC

+B

(BACK

51·1: 51·2: 51·3: 81-4:

51-5: Head set'

S1·6: Tape/radl

measurement

negative

(( ))

switch:

shows test poI

parts

number

dlagr.m

of

new

technology.

(FM) Sig (AM)

Signal

(PLAY)Signal

Signal

LIne Siglla Signal

VCOSignal

Signal

Line

UP)

Memory:'

AmbienCf

Channel!

FM/AM

~v

Intercom Volume Auto

Mute

position

nal

I Line

Signal

14

Line

...

mlY

SWd

volu

gain

leve

is

termin

Hea(i

OFF

Is des

Line Line

Linp

Line

Linfl

f,I

SW

(',

tal

be

II

MOTOR/PLUNGER

SWITCH

F

CONNECTOR CIRCU

IT

eN

505

CIRCUIT

PL

t

P~3

PL2

I .

I-~r--+---+------+--++-------+--+-+-+~----.----+-+-,

G

CN'103

ACC(LAMP)

t...CC(LAIAP)

r,

G;.j::

~

t.;;

1(:'

H

,KS2

c..

::>

~

W

o

~~

~

e

0.

cI">

....J

lL-

CD

C\-

o.

Q.

(,/)

V'>

tn

~

0:::'

~

lL-

u.

RADIO

-10

-

C8

IN/OUT

COWJ!:CTOR

co

w

TERMI~l

I

l

]0+-----4----1

Hb:I-+-------.........---I

~3

'1M----------..--l

~~~

l'frr--'------------

51-

MEMO

1

St-

2

Sf-

AMB

3

C~

D603

v:..

'65

-11-

CIRCUIT

TO

MAI~li

CIRCUIT

I

(

CN~061

I

13~

2 4

5

Ie

8

{i

w

~'{

IC3C

s

c::::

A

-t*-:

/.

Ca

Anodl'

Cathoc.

01,

t

Anode

A~~

013A,