Fisher RS-913 Service Manual

SERVICE MANUAL
FM STEREO MW/LW
RECEIVER
WITH
REM-915
WIRELESS
REMOTE
CONTROL
STUER
eg
Ben om
|
FIS
ER
RS-913
( EUROPE )
RS-1913
BASS
Fer
ms
132 338 40
SPECIFICATIONS
Remote
Control
(REM-915)
............ccecccceesesssceceeees
38-function,
Loudness
Contour
(100HZ/10kHZ)
........0..00000....
+
9dB/+
4dB
wireless remote control Hum and Noise (IHF Short Circuit, A Network)
POWER
AMPLIFIER
SECTION
PMONO
ccacsccchactssovasat
aa
lerdscanswatsankern
aansnsanseasainemeanicets
70dB
'
Minimum
RMS
sine
wave
power
per
channel
within
stated
TADS
MORMON
2
asic
acer
a
Gaye
sie
sh
eo
sanicsaatinmaedareicane
80dB
bandwidth
at
no
more
than
stated
PIS
AID)
saris
cal
iets
cen
bat
ebandl
ee
set
fo2s
Coens
Ses
calad
ued
basket
80dB
Distortion
and
with
80
load
oo...
cccecceeceeeees
100W
(DIN)
source
Direct
(AUX)
o....
6c
ecceeseeguvavesssserscdvvenees
80dB
Total
Harmonic
Distortion
....0000.00ccccceceececceceeeesseeeee
0.09%
FM
SECTION
1M
DISTOMMOMN:
ce
ckecisseversaesvesnedsliWigavidaesleedncysandedeiaeeaooieelens
0.09%
Usable
Sensitivity
Speaker
Damping
............cccccccccecccccccccecsesseseceecesceseeteveseece
>
20
DONO
seca
esp
se
tain
ts
Roma
we
tree
dE
ord
epee
es
1.0pV
PREAMPLIFIER
SECTION
46dB
Quieting
Sensitivity
Frequency
Response
INO
lS
dea
ec
ce
ee
a
ee
de
hn
tae
crcstno
nd
saul
ate
Aho
ons
4.0yuV
PROMO
(RIAA)
sscctcetesioeiceei
ast
oleed
oocie
tveadsculdinaee
+2dB
Signal-to-Noise
Ratio
AUX
(20HZ
~
20KHZ)
oo...
cc
ce
cceccceccccceseesccceceees
+0,-2dB
INO
IO
tes
cecettes
cee
sug
aura
orn
tinea
Cetus
deleatbenedsuedaatnse
ican
yastawsiite
70dB
Input
Sensitivity
and
Impedance
LOCO
saa
cae
dace
te
tna
eset
Mla
wadiovinien
dtra
rainnaen’
63dB
OWN
O
Gd
cracls
to
ealah
cient
ahs
Pitted
orien
tay,
2.5mV/50kN
CADE
e
FAN
O
aajer
i
culer
bosons
i
aiaesuladgudsolotyuaasenssed
.
2.0dB
Tape
Monitor
1,2
oo...
cccccccecceessseceeceseeens
150mV/50k0
Alt.
Channel
Selectivity(+300kKHZ)
0.0.0...
ee.
55dB
PIN
CO
sce
s
eo
tne
escent
wadnate
taht,
150mV/50k0
Image
Response
Ratio
................
ccc
ccccceccceeccc
sce
ecee
een
es
70dB
Phono
Max.
Input
Capability
o.oo
cceeeereeecee,
150mV
Spurious
Response
Ratio
..............
ne
re
ee
95dB
Graphic Equalizer MH ORGSPONSe RalOcicuitieie ea tes ata enna > 90dB
ODEN
os
eal
esate
ieee
Seth
cutee
eadatanadag
a
iaatal
tien
+10dB
AM
Suppression
Ratio
2.0.00...
ccc
cece
eee
ee
cece
eee
es
55dB
ONL!
hile
ace
dl
s
arnticen
nero
atauG
Secactrer
ced
Stoel
iad
+10dB
Total
Harmonic
Distortion
at
60dBf
MUA
ca
ee
hes
cea
a
Neo
Ng
ig
tears
ale
Be
Nee
cp
ont
+10dB
MONO
CUKIAZ)
cs
Bisco
ten
ties
cat
ieee
Gare
ec
saan
iene
ieee
a
0.2%
ANIME
Bafana
pets
eatin
at
BR
ghee
ad
atest
fe
+10dB
SIGTOO
"(VK
)
stasccshaceetrien
en
ae
eh
0.25%
MOA
ore
sloth
cscs,
Sc
ccadeatanaisictiaavnsulbein
Seated
Ceenges
+10dB
Stereo
Separation
(1OOHZ/1kKHZ/10KHZ) 00000 40/40/30dB
— Specifications and design are subject to change without notice. —
REFERENCE No. WM-570087

Fisher RS-913 Specifications

General

Brand	Fisher
Model	RS-913
Category	Receiver
Language	English

Summary

Specifications

Remote Control (REM-915)

Details specifications for the wireless remote control unit.

Power Amplifier Section

Specifies performance metrics for the power amplifier stage.

Preamplifier Section

Details input sensitivity, impedance, and frequency response.

FM Section Specifications

Outlines performance characteristics of the FM tuner.

MW Section Specifications

Lists performance metrics for the Medium Wave tuner.

LW Section Specifications

Details performance characteristics for the Long Wave tuner.

General Specifications

Covers power requirements, dimensions, and weight.

Cabinet and Chassis Parts List

Alignment Procedures

Caution on RF Adjustment

Important warnings and notes before performing RF adjustments.

FM IF S-Curve Alignment

Procedure to align the FM IF S-curve for optimal performance.

FM RF Frequency Cover Alignment (87.5MHz)

Steps to align FM RF frequency coverage at 87.5MHz.

FM RF Frequency Cover Alignment (108MHz)

Steps to align FM RF frequency coverage at 108MHz.

FM RF Tracking Alignment (88MHz)

Procedure for aligning FM RF tracking at 88MHz.

FM RF Tracking Alignment (108MHz)

Procedure for aligning FM RF tracking at 108MHz.

Detector Adjustment for Minimum THD

Adjusting the detector for minimum total harmonic distortion.

AM IF Alignment

Steps to align the AM IF stage.

MW RF Frequency Cover Alignment (1611kHz)

Aligning MW RF frequency coverage at 1611kHz.

MW RF Frequency Cover Alignment (522kHz)

Aligning MW RF frequency coverage at 522kHz.

LW RF Frequency Cover Alignment (360kHz)

Aligning LW RF frequency coverage at 360kHz.

LW RF Frequency Cover Alignment (153kHz)

Aligning LW RF frequency coverage at 153kHz.

MW RF Tracking Alignment (603kHz)

Steps to align MW RF tracking at 603kHz.

MW RF Tracking Alignment (1404kHz)

Steps to align MW RF tracking at 1404kHz.

LW RF Tracking Alignment (160kHz)

Steps to align LW RF tracking at 160kHz.

LW RF Tracking Alignment (350kHz)

Steps to align LW RF tracking at 350kHz.

AM Auto Stop Sensitivity Adjustment

Adjusting the sensitivity for the AM auto stop feature.

Adjustment Procedures

Power Amplifier Adjustment

Procedures for adjusting the power amplifier.

Idling Current Adjustment

Guide for adjusting the idling current for optimal performance.

P.C. Board Parts List

RF Main P.C.B. Assy Parts

List of components for the RF Main Printed Circuit Board.

Control P.C.B. Assy Parts

Components for the Control Printed Circuit Board.

Pre Amplifier P.C.B. Assy Parts

Components for the Pre Amplifier Printed Circuit Board.

IC Block Diagrams

TMP47C870N-4627 IC Block Diagram

Visual representation of the TMP47C870N-4627 IC's internal structure.

LC7821 IC Block Diagram

Diagram illustrating the internal functions of the LC7821 IC.

LM7000 IC Block Diagram

Block diagram showing the LM7000 IC's architecture.

LA3401 IC Block Diagram

Block diagram detailing the LA3401 IC's functionality.

IC and Transistor DC Voltages

IC DC Voltages

Measured DC voltages for various integrated circuits.

Transistor DC Voltages

Measured DC voltages for various transistors.

Printed Circuit Board Layouts

Control PCB Layout (Bottom View)

Bottom view layout of the Control Printed Circuit Board.

AC Switch PCB Layout (Bottom View)

Bottom view layout of the AC Switch Printed Circuit Board.

Master Volume PCB Layout (Bottom View)

Bottom view layout of the Master Volume Printed Circuit Board.

Sub Trans PCB Layout (Bottom View)

Bottom view layout of the Sub Trans Printed Circuit Board.

Wiring Diagram

Point-to-Point Wiring Diagram

Illustrates internal wiring connections between P.C. boards.

IC & Transistor Lead Identification

Transistor Lead Identification

Identifies the pinout (Base, Collector, Emitter) for various transistors.

IC Lead Identification

Identifies the pinout for various integrated circuits.