Denon DRM 800 Service Manual

Page 1

Hs-F's Component

SERVICE MANUAL

STEREO CASSETTE TAPE DECK
MODEL DEM-800

TABLE 0E CONTENTS

openmws wsmucnoms .......................... . ........... . ..................... 2 ~1 1
SPEciFiCATIONS ....................................................................... 1 1
BLOCK DIAGRAM ......................... .. _ , -..12
LEVELDIAGRAM ..................... . ................... .3 . .....13
DTSASSEMBLY wsmucmms ................................................ 14 ~ 353
ADJUSTTNG AND CHECKING THE MECHANISM seem» , . . . . ............ 15~17
ADJUSTING mr FL semen secncms ......... . . ................... 17 -~- 19
PARTS HST OF EXPLODED mew ............... . . .............................. 20
EXPLODED WEW 0F CABINET AND CHASSiS G-?CUP ..... . . .. '2.
PARIS usr 0F ALL-1817/4U-1823NECHANISM EXPLODED vaew .............. . ..... 22
EXPLODED VIEW OF MECHAMSM.. .................. . ._ .. . ,...23

- PARTS LIST OF 41.334818 . ................ . .. ............................... 24
wmmeosAGRAM....................... .. ......................... 2s
SCHEMATIC M 53mm ............... .. .. .. . ............................. 25~27
PWBOARD Of-4U-1816. .. . . . . ..... ...................... 2a
P.W.BOABDOFALJ-~181'I.-¢U~1823 ........ . .. 3 .. . .. ......29
swmonoucma ..... . .......... .3. ... _. _. . ..30

NIPPON COLUMBIA CO... LTD.

Page 2

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nor EXWTFQS~19PLMNCE 70 Ram 0R

DISTURE.
CAUTION :
1. Handle the Mo: wpply cord carefully

00 0t damage 0r deform the power sepply card. If it
is damaged 0' deformed, it may cause electric shock
at malfunction when used. When removing 1mm wall
outlet. be sure to remove by holding the plug attach-
ment and not by pulling the cord.

Do not ma Meir pm.

II'I order 1'0 prevent electric shock, do no: open the
530* plate. N problems occur. contact your DENON
dealer.

3. Do not place anything Inside

Do not place metal obiects or soil! liquid mslde the

cassette deck Etsctric shock or malfunction MSW result.

Please. record and retain the Model name and serial 1"me
oi your set shown on the rating label. ,
Model No. DEM-856 Serial No.

nwm

screw msmucnons son A'umo sane

.' .0! fatalities.

.polnt. contact a qualified electrician.

m*'*ilkflnuufl.ln -.....,m_,.w,, -0W.

lMPORlANT
(BRll'iSl-l MODEL ONLY)

The wires in this mains lead are coloured in'accordance
with the following code:

Blue 2 neutral

Brawn : {Eve
The colours of the wires in the mains lead of this ap-
paratus may it {correspond with the coloured markings
identifying the terminals in your plug proceed as follows.
The wire which rs cofourod blue must be connected to
the termmaé winch :s marked with the fetter N or
coloured black.
The wire which is coloured brawn must be connected
to the terminal which is marked with the letter 1. or
coloured red.

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«.rwwv- .n-I'v 4-- «a

wvw - an . a mural.-- fi-IW "

FOR YOUR SAFETY

l (AUSTRAUAN MODEL ONLY)

To ensure safe operaeion, tile threepia plug supplied
must be cannected only with a standard three-pin porrer
l point which is effectively earthed through the normal
household wiring.

Extension cords used Will the equipment must be three-
core and be correctly wired to provide connection: to
earth. Wrongly wired extension cords are a maior cause

-...

"The fact that the equipment operates satisfactorily does
pot imply that the power point is earthed and that the
' installatzon is completely safe. For your safetydf in
any doubt about the effective earthlng of the power

L- .......

IJHSTALLATION

1- 9W3 the $45"? only lrorn a power source Whid" is
Indicated on we rating label {indication} all She back
. .of. the..$et-.. .- ..

2. Frayed cords and braken plugs may cause as fire or
shock hazard. 00 not damage the power cord,

'00 00* CUi 80': splice the power cord.

'Whe" WWW-x the power cord from well Millet. be
SW6 to, unplug by holding the plug attachment 3nd "Gt
by pullmg the cord. 00 not hot the plug by wet hand.

° Call VOW serves technician for replacement of dam-38
cords and plum.

1......

m. . .1... .. -.. .. my!

-

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\T\

9...-.. .

Check vomge

u wry-aw _

Do not pinch power cord.

-

I USE

1. Do not expose. the set to rain or water ll'hlidé-
metal oblects made the set

check your sex meme turther use.

defeats saleaams or injuring yoursel"
hes been dimmed. unplug the sat and haw
mclan to weave the safeguards.

ISERVIOING

1' The servfcrns 5? set must not be attempted or #05756
beyond thit remind in the Ope'ating instructrcns.
"1 C330 0f Drouems that cannot be settled by relerrmfi
50 50W opermmg instructions. unplug the power CO-"d
and CORN 39w DENON Lieder. No user-servgcaple
carts are insieutha set. Only marten saunas mama
your set.

2- Refer to the Granting instructions for murder-amt?
and cleaning

l

2 - ..
-....

Do not Spill iiquid or insert
Ram. water or liquid such as cosmetics as well as
metal may vane electric shorts which car result in fire or shock hazard; if
any thing gets "glde, unpiug the power cord who have a DENON servzce techmcran

a. Never leave yam set Swimmer! on which iea.¢.r:; the house.
0? your 865%. 2;.stem du'ing Iightning storm cr wher the set is to be Ieft unused
lor along per w of t:me 99 sure to unplug we power cord from he wait cote:

3. Take care- 52 cat the set is not dropper; m avoid damaging the cabmet wimp

ll tn» as! has been dropped 0' the cae-net .

1 checked by a DENON service tea--

7 -

-m -~ -

..¢.-

3. Select a place so that the location or position does not
interfere with the proper ventilation or the set for
releasing heat generated during Operatmn.

«Select a flatend level surface allowing enough space

for setting up and- operation.

' uNever block the bottom ventilation holes placing the
set on a bed, sofa. rug. etc.
oNever place the set in a builtin enclosure unless
proper ventilation is Provided.
uNever place the set near or over a radiator. heat re-
gister or slow.
0Avoid locations where the set is. exposed directly to

the sun fight.
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at"; g . \f {1' '2: war: f'
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Do not splice power cord. 3,

.L

For added protec: son 7
i
i

Remove power in you
absence.

u # j .. 7 .-

A.
. 131

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X $9, .{fit I r \A I
£5.35" a JV r, - - fie; / i
x = x. 2' .; MI .
3 gr. . .« l v V / l
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" . lfio ysenserviceable parts
00 not drop- _. inside.