Electrical Parts List; Assignment Of Common Parts Codes; Note On Safety For Fusible Resistor; Abbreviation And Marks - Marantz SR7400 Service Manual

13. ELECTRICAL PARTS LIST

ASSIGNMENT OF COMMON PARTS CODES.

RESISTORS
: 1) GD05 × × × 140, Carbon film fixed resistor, ±5% 1/4W
R
: 2) GD05 × × × 160, Carbon film fixed resistor, ±5% 1/6W
R
➀
Resistance value
Examples ;
➀
Resistance value
0.1 Ω .... 001 10 Ω .... 100
0.5 Ω .... 005 18 Ω .... 180 2.7 kΩ .... 272 680 kΩ .... 684
1 Ω .... 010 100 Ω .... 101
6.8 Ω .... 068 390 Ω .... 391
Note : Please distinguish 1/4W from 1/6W by the shape of parts
used actually.
CAPACITORS
C : CERAMIC CAP.
3) DD1 × × × × 370,
➁ ➂
Capacity value
Tolerance
Examples ;
➁
Tolerance (Capacity deviation)
±0.25 pF .... 0
±0.5 pF .... 1
±5% .... 5
Tolerance of COMMON PARTS handled here are as follows :
5 pF .... ±0.25 pF
0.5 pF
10 pF .... ±0.5 pF
6 pF
560 pF .... ±5%
12 pF
➂
Capacity value
0.5 pF .... 005 3 pF .... 030 100 pF .... 101
1 pF .... 010 10 pF .... 100 220 pF .... 221
1.5 pF .... 015 47 pF .... 470 560 pF .... 561
C : CERAMIC CAP.
4) DK16 × × × 300,
➃
Capacity value
Examples ;
➃
Capacity value
100 pF .... 101 1000 pF .... 102 10000 pF .... 103
470 pF .... 471 2200 pF .... 222
C : 5) ELECTROLY CAP. (
× × × × × ×
5) EA 10, Electrolytic capacitor
➅
➄
Working voltage
Capacity value
Examples ;
➄
Capacity value
0.1 µF .... 104 4.7 µF .... 475
0.33 µF .... 334
1 µF .... 105
➅
Working voltage
6.3V .... 006
10V .... 010
16V .... 016
6) DF15 × × × 350
DF15 × × × 310
DF16 × × × 310
➆
Examples ;
➆
Capacity value
0.001 µF (1000 pF) ....... 102
0.0018 µF ........................ 182
0.01 µF ........................ 103
0.015 µF ........................ 153
: 1) The above CODES ( R
NOTE
C ) are omitted on the schematic diagram in some
case.
2) On the occasion, be confirmed the common parts on
the parts list.
3) Refer to "Common Parts List" for the other common
parts (RI05, DD4, DK4).
1 kΩ .... 102 100 kΩ .... 104
10 kΩ .... 103 1 MΩ .... 105
22 kΩ .... 223 4.7 MΩ .... 475
Ceramic capacitor
Disc type
Temp.coeff.P350 N1000, 50V
High dielectric constant ceramic
capacitor
Disc type
Temp.chara. 2B4, 50V
), 6) FILM CAP . ( )
One-way lead type, Tolerance ±20%
100 µF ....107
10 µF .... 106 330 µF ....337
22 µF .... 226 1100 µF ....118
2200 µF ....228
25V .... 025
35V .... 035
50V .... 050
Plastic film capacitor
One-way type, Mylar ±5% 50V
Plastic film capacitor
One-way type, Mylar ±10% 50V
Capacity value
0.1 µF .... 104
0.56 µF .... 564
1 µF .... 105
, R , C , C

NOTE ON SAFETY FOR FUSIBLE RESISTOR :

The suppliers and their type numbers of fusible resistors
are as follows;
1. KOA Corporation
Part No. (MJI)
NH05 × × × 140
NH05 × × × 120
NH85 × × × 110
NH95 × × × 140
Resistance value
2. Matsushita Electronic Components Co., Ltd
Part No. (MJI)
NF05 × × × 140
RF05 × × × 140
NF02 × × × 140
RF02 × × × 140
Resistance value
Examples ;
Resistance value
0.1 Ω .... 001
0.5 Ω .... 005
1 Ω .... 010 100 Ω .... 101
6.8 Ω .... 068 390 Ω .... 391

ABBREVIATION AND MARKS

ANT. : ANTENNA
CAP. : CAPACITOR
CONN. : CONNECTING
HP : HEADPHONE
µ-PRO : MICROPROCESSOR
RES. : RESISTOR
SW : SWITCH
TRIM. : TRIMMING
VAR. : VARIABLE
NOTE ON FUSE :
Regarding to all parts of parts code FS20xxx2xx, replace
only with Wickmann-Werke GmbH, Type 372 non glass type
fuse.
NOTE ON SAFETY :
Symbol Fire or electrical shock hazard. Only original
parts should be used to replaced any part marked with
symbol . A n y o t h e r c o m p o n e n t s u b s t i t u t i o n ( o t h e r
than original type), may increase risk of fire or electrical
shock hazard.
and
63
Type No. (KOA) Description
RF25S × × × × ΩJ
(±5% 1/4W)
RF50S × × × × ΩJ
(±5% 1/2W)
RF73B2A × × × × ΩJ
(±5% 1/10W)
RF73B2E × × × × ΩJ
(±5% 1/4W)
Resistance value
(0.1 Ω − 10 kΩ)
Type No. (MEC) Description
ERD-2FCJ × × ×
(±5% 1/4W)
ERD-2FCG × × ×
(±2% 1/4W)
Resistance value
10 Ω .... 100 1 kΩ .... 102 100 kΩ .... 104
18 Ω .... 180 2.7 kΩ .... 272 680 kΩ .... 684
10 kΩ .... 103
22 kΩ .... 223 4.7 MΩ .... 475
BATT. : BATTERY
CER. : CERAMIC
DIG. : DIGITAL
MIC. : MICROPHONE
REC. : RECORDING
SPK : SPEAKER
TRANSF. : TRANSFORMER
TRS. : TRANSISTOR
X'TAL : CRYSTAL
1 MΩ .... 105
010728MIT