Marantz SD 255 Service Manual

Page 1

M5535

RTV servis Horvat
Kcsinci, 31402 Scmcljci
031-856-139 ,
031-856-637 " i"
098-788-319

rtv-sereli:23;vat@ostclehr ~ SE RVICE
MA N U L ,
, , » LWMW

This service manual explains them by extracting the different specifications from those of the SD255, based
on the 50255. For both electrical and mechanical information on the after-sales service which is not stated,
all information is described in the SD255 service manual. The dispatch of the parts for after~sa|es service has
to be referred to this service manual, with the first priority.

For this reason, please use this service manual with referring to the SD255 service manual, without fail.

Different Parts between MODEL $0255 and MODEL SD275

REF.

Page DESIG. SD255 50275 DESCRIPTION

18 A 261T248400 282T248400 Front Panel Assembly
0018 260T243030 2821748010 Front Panel
021 E 260T303010 282T303010 Mask, LED Meter
004C 260T053010 232T053010 Cover, Cassette Holder (A)
005C 250T053020 282T053020 COVEr, Cassette Holder 18)

r 006C 177T158020 282T158010 Window, Cassette COVEr

19 003 D 51260408U0 51706009U0 Spec Sat Screw

001 E 261T250020 282T250010 Rear Panel [N, A]
261T250030 282T250020 Rear Panel [E]
20 0015 261T801020 232T801010 Packing Case IN, A}
261 T801 030 2821'801020 Packing Case [E]

0045 2607809020 2601'807010 Reinforce
0065 9014323150 9014316230 Polyethylene Bag
0011' 251T851310 232T851310 User Manual
002T 2611351320 232T851320 User Manual, Spec
003T 261T856010 282T856010 Circuit Diagram
J01 1 - YJ0400124O Jack, AC Plug Adaptor

27 C603 -- DD15101300 Ceramic 1DODF 5% 50V
C604 - DD15101300 Ceramic 10091: 5% 50V
CJ13 - DF15471350 Film 4709i: 5% 50V
CJ14 -.- DF1M71350 Film 47ODF 15% 50V
RG13 --- NK05101010 1001'), 5% 1W M8tal
RJ13 RAM720600 RA02230600 22Kn, Trimming (L) P.B. Level
RJ14 HAo4720600 RA02230600 22KB, Trimming (R) 9.3. Level
RJ15 RAo4720600 RA02230600 ZZKQ, Trimming IL) PB. Laval
H.115 RAo4720600 RA02230500 22K, Trimming (R1 P.3t Lwel
RK01 RAM730600 RA02230600 ZZKQ, Trimming
RK02 RAM730600 HA02230600 22KB, Trimming
FIL07 RA04730600 HA01040500 100Kfl, Trimming (L) Bias
RLOS RAM730600 RA01040600 100K, Trimming (F1) Bias

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Page 2

REF. I
Pup DESIG. SD255 SD275 DESCRIPTION

27 DM25 H020015210 Diode 153133
DM26 H020015210 Dioda 155133

28 DTOS H 030002000 Zener MA1309M
QMOI HT205072A0 HT10684260 Transistor 23A684 (H, S)
OM10 HT205072A0 HTI 0684200 Transistor 25A684 (Fl, 8)
J601 YJ06002460 Jack, 7P
JSOZ YJ06002460 Jack, 7?

29 JW02 YT02040550 YT02040620 Terminal, RCA Jack lN/OUT
CW51 DK18103310 Ceramic 0.01uF 50V

"SERVICE INFORMATION IS FOR USE BY QUALIFIED RERSONNEL ONLY -
ANY MISADJUSTMENT OH MISALIGNMENT MAY BE TREATED AS A NONWARRANTY
REPAIR BY ANY MARANTZ SERVICE CENTRE - 4

Kind of Common Parts

RESISTOR
3:2 (I) GDO5 - « - 140, Carbon film fixed resistor, 115% 1/4W
B!" (2) GD05 - - ~160, Carbon film fixed resistor, 15% 1/5W

9: : CERAMIC CAP.
(i) 001 - - - - 370, Ceramic condenser,
disc type (titan condenser)
Temp. coeff. P350 ~ N1000 50V

(2: : CERAMIC CAP.
(1) DK16 - - - 300, High dielectric constant ceramic condenser,
disc type (titan variable)
Temp. chara. 284 50V

W : ELECTROLY CAP. ( at: i / FILM CAP. ( .1: l
(1) EA - - - A - 10, Electrolytic condenser,
one-way lead typel tolerance $2096
(2) DFIS - - - 350, Plastic film condenser,
one-way type, Mylar, t5% 50V

In case of ordering the common parts, please establish the correct
parts number of 10 figures by the procedure ASSIGNMENT OF

COMMON PARTS CODES"