Connector Panel - Revox B261 Serviceanleitung

sruotrR neVox
8261 SA
TABLE OF
CONTENTS
I.
GENERAL
1.1
Index to tuner controls
1.1.1 Front-panel controls
1.2 Connector panel
1.3
Recommended
test equipment and alignment
tools
T/L
T/L
L/3
L/3
2.
DTSIqANTLING
INSTRUCTIONS
2.I
Removing
the top cover
2.2 Removing
the bottom cover
2.3 Removing
the side covers
2.4
Removing
the front panel
2.5
Removing
the operating panel
2.6 Replacing the meter illumination
lamps
2.7
Removing
the indicating instruments
2.7 .I Meters
2.1 .2
Display
PCB
2.8 Replaclng the indicating
LEDs
2.9 Removing
the contact pad and the keyboard
PCB
2.I0 Replacing the fuses
2.10.1
AC
power fuse
2.l-0.2
Power
supply fuses
2.\L Removing
the power supply
2.I2
Removing
the power supply
PCB
2.13
Reassembly
2/r
2/r
2/r
) /1
2/r
2/2
')
/)
2/2
2/2
2/2
2/2
2/2
2/2
a
/1
2/3
)
/'..
3.
CIRCUIT
DESCRIPTION
3.1
Power
supply I.726.720
3
.
1.
l-
Transformer
3.I.2
Power
supply
PCB
3.2
RF
input
section
3.2.I
RF
amplifier
I.726.'730
3.2.2
Antenna switch
3.2.3 Synthesizer
and
local oscillator I.726.770
3.3 IF amplifier
L.726.'740
3.4
Demodulator I.126.750
3.5
Stereo decoder I.726.160
3.6
Audio section
3
.
6.
1
Aud
j-o
PcB I
.726
.820/B2I
3
-6
-2
Phones
PCB
I
-'726 -860
3.7
Microcomputer
unit
3.
B
Command
unit
3.8.
I
Keyboard
3.8.2
D
j.splay,
meters
3 .
8.
3 Level control
3.8.4
Remote
control receiver
3/r
3/r
3/r
3/2
3/2
3/2
3/2
3/3
3/3
3/4
3/5
3/5
3/5
3/s
3/6
3/6
3/e
3/e
3/6