Sony STR-AV880 User manual

SERVICE MANUAL
SPECIFICATIONS
AUDIO
OUTPUT
AND
TOTAL
HARMONIC
inputs
US Model
DISTORTION:
With
8-ohm
ioad,
both
channeis
driven,
from
20
-
20,000
Hz,
rated
110
watts
per
channel
minimum
RMS
power,
with
no
more
than
0.006% total harmonic distortion from 250
Sensitivity
2.5mV
0.25 mV
150 mV
_—_—_—__1—.
Impedance
50 kilonms
100 ohms
50 kilonms
1
SIN (weighting
network, input
i kk eee
| 87 dB |
| 79dB* (A, 25mV)
69 dB
78 dB* (A, 0.25 mV)
105 dB
86 dB* (A, 150 mV)
——L.
milliwatts
to
rated
output.
cen
TV
(audio)
OTHER
SPECIFICATIONS
TAPE
1,2
|
Outputs
Amplifier section
Dynamic power output
470 watts + 170 watts (8 ohms, at 1 KHz IHF)
210 watts + 210 watts (6 ohms, at 1 kHz IHF)
250 watts + 250.watts (4 ohms, at 1 kHz IHF)
Harmonic distortion
Less than 0.006% at rated output
intermodulation (IM) distortion
(60 Hz:7 KHz = 4: 1)
Less than 0.006% at rated output
Frequency response
PHONO: RIAA equalization curve + 0.5 dB
CDIAUX
VIDEO 1, 2 (audio)
TV (audio)
TAPE 1,2
Less than 70 ,V (8 ohms, network A)
50 (8 ohms, 1 kHz) ,
| 5 Hz - 100 kHz *°dB
Residual! noise
Damping factor
*°78 IHF
REC OUT 1,2, VIDEO 1 AUDIO OUT
Voltage 150 mV
Impedance 10 k ohms
SPEAKER A, B
Accepts speakers of 8 — 16 ohms.
HEADPHONES
Accepts low and high impedance
headphones.
— Continued on page 2 —
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS
IDENTIFIED
BY
SHADING
AND
MARK
A
ON
THE
SCHEMATIC
DIAGRAMS
AND
IN
THE
PARTS
LIST
ARE
CRITICAL
TO
SAFE
OPERATION.
REPLACE
THESE
COMPONENTS
WITH
SONY
PARTS
WHOSE
PART
NUMBERS
APPEAR
AS
SHOWN
IN
THIS
MANUAL
OR
IN
SUPPLEMENTS
PUBLISHED
BY
SONY.
FM STEREO/FM-AM RECEIVER
SON
Y.
AUD
MICROFILM

STR-AV880
Tone controls BASS
+8 dB at 100 Hz
TREBLE
+8 dB at 10 kHz
Subsonic filter 6 dB/oct. attenuation below 15 Hz
Video section
Inputs TV, VIDEO 1, 2: 1 Vp-p, 75 ohms unbalanced
Outputs VIDEO 1, MONITOR VIDEO OUT: 1 Vp-p,
75 ohms unbalanced ;
FM tuner section
Tuning range 87.5 MHz - 108 MHz
Antenna terminals 75 ohms, unbalanced Q.
Intermediate frequency 10.7 MHz
Sensitivity at 50 dB quieting
16.1 dBf, 3.5 pV (ones.
38.3 dBf, 45 pV (stereo)
Usable sensitivity 10.3 dBf, 1.8 nV (IHF)
Signal-to-noise ratio 82. dB (mono), 76 dB (stereo)
Harmonic distortion 0.05% (mono), 0.1% (stereo) at 1 KHz, WIDE
IM distortion 0.05% (mono), 0.1% (stereo), WIDE
Separation 50 dB at 1 kHz, WIDE
Frequency response 30Hz- 15kHz*°2dB
Selectivity 65 dB at 400 kHz, NORMAL
30 dB at 400 kHz, WIDE
Capture ratio 1.2dB
AM suppression ratio 54dB
Image response ratio 80dB
iF response ratio 90 dB
Spurious response ratio
100 dB
RF intermodulation 65 dB
Searching threshold LOW 30dBf, MID 40 dBf,
HIGH 50 dBf
AM tuner section
Tuning range 530 - 1,610 kHz (with the AM tuning interval
set at 10 kHz)
531 - 1,602 kHz (with the AM tuning interval
set at 9 kHz)
Antenna Layout-free antenna
External antenna terminal
Intermediate frequency
; 450 kHz
Usable sensitivity 50 dB/m, layout-free antenna (at 1,000 kHz)
100 pV, external antenna terminal (at 1,000
kHz)
Signal-to-noise ratio 54 dB (at 50 mV/m)
Harmonic distortion 0.3% (at.50 mV/m, 400 Hz)
Selectivity 40 dB (10 kHz)
Searching threshold 55dB/m
General ; ‘ ; »!
System Tuner section: PLL quartz-locked digital
synthesizer system
Preamplifier section: low-noise NF type
equalizer amp.
Power amplifier section: pure-
complementary SEPP
Power requirements 120V AC,60Hz
Powerconsumption 200 watts
AC outlets : Two switched (total 100 watts)
‘Dimensions Approx. 430 x 130 «345 mm (w/h/d)
(17 x 54s x 13%, inches)
including projectiag parts: and controls
Weight Approx. 9.6 kg (21 Ib 3 oz) net
Approx. 10.8 kg (23 Ib 13 oz) in shipping ¢ carton
Accessories supplied FM ribbon antenna (1) :
: AM layout-frée antenna (1).
External antenna connector (1)
RM-U880 Remote Commander with two size
AA (IEC designation R6) batteries and a
4-pin flat cord
Design and specifications subject to change without notice.
FEATURES
The:STR- AV880 is a combined receiver and
audio/video contro! center that allows you to enjoy with
maximum convenience a variety of audio/video program
sources—CD (Compact Disc), record, tape, TV, hi-fi video,
and more.
e A surround sound system gives your living room the
acoustics of a movie theater or a concert hall.
© The ASP (Audio Signal Processor IC developed by Sony
can digitally control the tone and volume settings, and
permits electronic program source selection with a single
touch of a key.
¢ The ASP IC also offers an acoustic memory function, an
ability to store and recall three sets of tonal adjustments,
and a voiume iade-in junction, an abiiity io Sei ihe voluinie
to the minimum level when the power is turned on and
automatically increase it to a previously set level.
© A quartz-locked digital synthesizer system with a
sophisticated Phase-Locked Loop (PLL) circuit allows
extremely precise tuning of FM and AM stations with an
electronic digital readout in the display window.
A total of 10 stations can be preset.
* The computerized logic tuning system automatically
selects the appropriate FM mode and FM IF band:
according to the signal strength of the station received.
¢ The station spectrum display allows you to identify at a
glance the frequencies of all preset stations or stations
which are receivable with station scan tuning.
¢ Video tapes can be edited between two hi-fi video cassette
recorders connected. During video tape editing, other
audio program sources can be enjoyed and added onto the
video tape. ,
* Independent TV tuner inputs are provided besides the two
video inputs.
* Front video inputs allows temporary connection of a
portable VCR, etc.
* CATV cable can be connected directly to the receiver,
making FM simulcast program reception easily.
e The RM-U880 Remote Commander allows you to control
the components connected to the receiver from a distance.

TABLE OF CONTENTS
Section Title Page
Specifications ©... 0.2... eee eee eee 1
Features 2... 0... ee ee ee ee ees 2
Safety Check-out ....... 0.00. eee eee 3
Notes on Repair... 2... 0... eee ee ees 4
Location and Function of Controls .........- 5
To Receive FM/AM Broadcast...........--- 11
To Listen to Program Sources Other Than
Broadcasts weg hie ace eed es hears Gee eae 13
To Set the Acoustic Settings............--- 15
To Record on an Audio Tape ..........-.4.-- 16
Hi-Fi Video Recording........---.---0055 17
Video Tape Editing. ©... 2.0... ee eee eee 18
Adding New Sound on a Video Tape
During Editing... 2... ee ee es 18
Connection Diagrams ........-+2+020005 19
IC Pin Function ......... 0.0000 eee 25
1. ELECTRICAL ADJUSTMENTS ....... 28
2, DIAGRAMS . 33
2-1. Main Section Mounting Diagram ....... 34
2-2. Main Section Schematic Diagram ....... 39
2-3. Display Section Mounting Diagram and
Schematic Diagrams .........---+55 44
2-4. Tuner Section Schematic Diagram ...... 50
Semiconductor Lead Layouts ..........+.-. 53
3. EXPLODED VIEWS AND
PARTS LIST ..........-0- 00-00? 54
4. ELECTRICAL PARTS LIST......... 57
Troubleshooting... ........ 002 ee eee eee 66
STR-AV88O0
SAFETY CHECK-OUT (US Model)
After correcting the original service problem,
perform the following safety check before releasing
the set to the customer:
Check the antenna terminals, metal trim, ‘‘metallized”
knobs, screws, and all other exposed metal parts for
AC leakage. Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed meta! part to
earth ground and from all exposed metal parts to any
exposed metal part having a return to chassis, must
not exceed 0.5mA (500 microampers). Leakage
current can be measured by any one of three
methods. ;
1. A commercial leakage tester, such as the
Simpson 229. or RCA WT-540A. Follow the
manufacturers’ instructions to use these instru-
ments.
A battery-operated AC milliammeter. The Data
Precision 245 digital multimeter is suitable for
ihis job.
Measuring the voltage drop across a resistor by
means of a VOM or battery-operated AC volt-
meter. The “limit” indication is 0.75 V, so
analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa
SH-63Trd are examples of a passive VOM that
is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are
suitable. (See Fig. A)
To Exposed Metal
Parts on Set
{
AC
voltmeter
1.5kQ
(0.75 V)
0.15 uF
a
L Earth Ground
Fig.
A.
Using
an
AC
voltmeter
to
check
AC
leakage.

STR-AV880
Notes on. Repair -
Initialization
For abnormal operation, or when replacing the
lithium battery or microcomputer, short the main
board INITIAL pin when power is on. The micro-
computer is initialized and operation begins from
initial state.
When the microcomputer is operating, the I/O
CLOCK port constantly generates a CLOCK pulse.
[MAIN BOARD]
To change the AM tuning interval
The AM tuning interval is preset at the factory to 10 KHz to
match the frequency allocation system of your country.
If you use the receiver where the frequency allocation system
is based on a 9 kHz interval, change the interval as follows.
1 Depress the MAIN POWER switch to turn on the unit.
2 Press the SYSTEM POWER switch to turn off the unit.
3 While pressing the “+” STATION SCAN key, press the
SYSTEM POWER switch to turn the unit on.
The AM tuning interval has been set to 9 kHz. To reset the
interval to 10 kHz, follow the same procedure.
Note
When the interval is changed, all preset and located stations
and acoustic settings will be erased. After changing the
interval, memorize the stations and acoustic settings again.

STR-AV880
STR-AV880
LOCATION AND FUNCTION OF CONTROLS
Amplifier section
[1] SYSTEM POWER switch 7 ;
First turn the MAIN POWER switch on and then press this
switch to turn the receiver and connected components on
and off. : .
You can operate the switch from a-distance with the
RM-U880 Remote Commander.
(2! MAIN POWER switch
Depress to turn the mains power on.
(3] RECEIVED/STANDBY indicator
Lights when the mains power is turned on and blinks
when a key on the Remote Commander is pressed:
[4] SURROUND SYSTEM key
When listening to a stereo source, press to give your
living room the acoustical atmosphere of a-movie theater
or aconcert hall. Press it again to disengage the
surround, sound system.
(5! EDIT keys and indicators
AUDIO: For recording an audio program source ona
video tape or adding that source to a video tape during
video tape editing
VIDEO: For recording TV programs from the connected
TV tuner on.a video tape or editing a video tape from
VCR 2 to VCR 1
[6] METER SELECT key
Press to select the power output spectrum display or
signal strength meter display,and the ATT (volume)
attenuator) or SIGNAL (signal strength) indicator display.
In TUNER mode, each time the key is pressed, the
spectrum display will change from normal power output
display to 1/10 scale power output display to SIGNAL
strength meter display; successively. The ATT indicator
will change to SIGNAL indicator when the SIGNAL
strength meter display is selected.
In function modes other than TUNER, normal or 1/10
scale power output spectrum display can be selected.
[7] CARTRIDGE select key and indicators
This key functions when the PHONO FUNCTION key is
pressed.
For moving-coil type cartridges, press this key so that the
MC indicator lights. For moving-magnet type cartridges,
press this kev again so that the MM indicator lights.
[8| FUNCTION keys
PHONO: For record programs
FM/AM: For broadcasting programs
CD/AUX: For compact disc or auxiliary programs
TAPE 1 (TAPE 1 ~ 2): For taped programs of tape
deck 1 (connected to TAPE 1 inputs)
TV: For TV programs from the TV tuner (connected to
TV inputs)
VIDEO 2: For video programs of VCR 2 (connected to
the front or rear video 2 inputs)
VIDEO 1: For video programs of VCR 1 (connected to
VIDEO 1 inputs)
[9] MONITOR key and indicator
To listen to taped programs of tape deck 2 (connected to
TAPE 2 inputs), press this key to turn on the MONITOR
indicator. To listen to program sources other than tape
deck 2, press the key again to turn the indicator off.
{ig} MUTING key
Préss to attenuate the sound level by co dB. Press again to
restore the same sound Jevel as before.
[ii] BALANCE control keys
Govern the amount of sound coming from éach paired
speaker to get optimum stereo effect. Press R key to
decrease the left channel volumé, and L key to decrease
the right channel volume.
42] BASS and TREBLE TONE control keys
Control the prominence of bass and treble response.
[13] ACOUSTIC keys
FLAT: Press to disengage the acoustic setting for a flat
frequency response.
SELECT: Press to select the acoustic memory number
to memorize an acoustic setting or to recall the
memorized setting.
MEMORY: Press to start memorizing an acoustic
setting.
[14] SUBSONIC filter key
Press to reduce unwanted subsonic noise components
created by warped records, etc. The filter will cut off any
input signals below 15 Hz at a 6 dB-per-octave rate. Press
it again to disengage the filter.
'75! F/R (front/rear) VIDEO 2 INPUT select key
Press to select the front or rear video 2 inputs after
pressing the VIDEO 2 FUNCTION key. The selected video
2 inputs are indicated by the video 2 input indicator,
“FRONT” or “REAR”, in the display window.
16! FRONT VIDEO 2 INPUT jacks
Connect to the video and audio outputs of a VCR for
playback, TV tuner, etc.
‘17! SPEAKERS selectors
To drive speaker system A: depress A button.
To drive speaker system B: depress B button.
To drive both speaker systems: depress A and B
buttons.
For headphone listening only: Keep both buttons
released.

STR-AV88O0
- STR-AV880
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2
pars
[fa] SEARCH START key
Press to start searching receivable stations.
[19] FM MODE key
When an FM station is tuned in, the receiver determines
the signal strength of the station and is automatically set
to the appropriate FM mode: STEREO for a strong station
or HI-BLEND for a slightly weak station.
Press this key when you want to change the FM mode
manually so that the desired FM mode indicator is
displayed.
HI-BLEND: When receiving a slightly weak station.
Stereo effects at higher frequencies will be slightly
reduced but noise will be reduced.
MONO: When receiving a very weak station. There is not
stereo effect but the reception will be more stable and
noise will be reduced.
(20) FM iF BAND key
When an FM station is first tuned in (except by preset
tuning), the receiver determines if there is likely to be
interference from an adjacent station. If there is not, the
IF band is automatically changed from normal (/\) to
wide (7.
Press this key to change the IF band manually. The IF
band selected will be indicated in the display window.
Band/antenna select keys
FM ANT-A (CATV): For receiving FM broadcast using
the FM antenna connected to the CATV ANT-A
connector or cable TV programs when the CATV cable
is connected
FM ANT-B: For receiving FM broadcast using the FM
antenna connected to the FM ANT-B connector
AM: For receiving AM broadcast
[22] Number keys
For direct access tuning: After pressing the band/
antenna seleci key, press to input the frequency of the
desired station.
For preset tuning: After pressing the MEMORY
PRESET key, press to memorize the station being
received. Also press to call up a preset station.
23] MEMORY PRESET key
Press to memorize the frequency of a station.
[<j
[24] MEMORY SCAN key
Press to scan automatically the stations memorized on
the number keys.
[25] MEMORY ERASE key
Press to erase the memory of the station located by
station searching.
26] STATION SCAN key
~ Press to scan the receivable stations located by station
searching.
FM LEVEL select key
Press to select the level of FM stations to be tuned in so
that the desired FM level indicator is displayed.
LOW: To tune in both strong and weak stations
MID: To tune in strong and mid-level stations
HIGH: To tune in strong stations only
FM ANTENN.
CATV
[A (B)
HIBLEN!
MONO
Pee Ree Cte Me
© Power output Q SIGNAL strength
spectrum display meter
eT mame
xt
10 100 400 2k 4k 12k
+
al
© ACOUSTIC indicator
Shows the number of the acoustic setting memory, [1],
[2lor [3].
© Video 2 input indicator
Indicates the selected front or rear video 2 inputs.
© Video monitor indicator
The indication [1 appears when the VIDEO 1
FUNCTION key is pressed; |2]/appears when the
VIDEO 2 key is pressed; [TV]appears when the TV key
is pressed.
© PROTECTOR indicator
Appears when the protection circuit against a short-
circuit is activated.
© ERASE indicator
Appears when the MEMORY ERASE key is pressed.
@ FM IF band indicator
The selected FM IF band is graphically displayed: 7—\
(wide) or_/\ (normal).
© ATT (attenuatorVSIGNAL (signal strength) indicator
Normally the volume attenuation level is indicated in
dB. When the METER SELECT key is pressed in
TUNER mode, the signal strength is indicated in dB.
© FM level indicator
The FM station level selected by the FM LEVEL select
key is displayed.
@ Station spectrum display
The frequencies of the receivable stations located by
station searching are shown by the squares. When a
station is tuned in, the corresponding square flashes.
@ Memory indicator
Appears when the MEMORY PRESET key is pressed.
@ Function indicator
Indicates the selected program other than broadcasts.
@ FM ANTENNA indicator
The CATV [A] appears when the FM ANT-A (CATV)
key is pressed; [Bp] appears when the FM ANT-B key is
pressed.
@ BALANCE indicator
Indicates the relative strength of the volume at the left
and right speakers.
@ TONE indicator aes
Graphically shows the tone control characteristics. A
straight bar graph indicates a flat frequency response.
© Power output spectrum display
The power output (in wattage) is displayed in five
frequency bands. :
When the METER SELECT key is pressed, the “x 1/10”
indication appears to indicate that the scale numbers
are read by 1/10 (i.e. for 0.1, read 0.01.)
@ SIGNAL strength meter ;
When the METER SELECT key is pressed in TUNER
mode, the received signal strength is indicated in five
steps.
—38—

Rear
6} ANTENNA terminals
AM and jt (antenna ground): Connect an AM antenna.
CATV ANT-A IN (F-type): Connect an FM antenna or
CATV cable.
CATV ANT-A OUT (F-type): This corinector supplies
the signals connected to the CATV ANT-A IN
connector to a VCR, TV tuner or another FM tuner.
FM ANT-B (F-type): Connect an FM antenna.
STR-AV880__
STR-AV880
[28] CONTROL S VISUAL OUT jack
Used to extend the utility of this unit by providing for the
connection of optional video equipment which will be
available in the future.
[30] CONTROL S AUDIO OUT connector
Connect to the CONTROL S$ IN or [J REMOTE IN
connector of other Sony equipment using a 4-pin flat
remote control cord in order to control the audio system
using the RM-U880 Remote Commander.
[31] 4 (phono ground) terminal
Connect the ground wire.of a turntabie system.
Note.
In some particular MM cartridges, the ground for signal is
connected to-the ground for cartridge body. If this type of
cartridge-should be installed to a metal cartridge shell,
current will flow through the tonearm ground in a loop
and will cause hum noise. In this case, disconnect the
turntable ground wire from the +, terminal, or disconnect
the ground for cartridge body from the ground for signal.
ground for
cartridge body
ground for signal
32] MONITOR VIDEO OUT jack
Connect to the video input of a component TV. The video
signal selected by the TV, VIDEO 1 or VIDEO 2
FUNCTION key and the F/R key is output here.
(33, AC OUTLETS (SWITCHED)
These are used to power other audio components whose
power consumption is less than the wattage indicated on
the outlets.
[34] CD/AUX (compact disc/auxiliary) IN jacks
Connect to the output jacks of a compact disc player or a
tape deck for playback.

TO RECEIVE FM/AM BROADCAST
Before tuning, select the speaker system with the
SPEAKERS selectors.
DIRECT ACCESS TUNING
When you know the frequency of the station to be received,
input it with the number keys.
4
1 Depress the MAIN POWER switch and press the SYSTEM
POWER switch. ;
2 Press the FM ANT-A (CATV), FM ANT-B or AM key. The “0” .
indication will blink.
3 Input the frequency using the number keys.
Exampies
FM 108.00 MHz
a ea De ae |
pM ELL wae
AM 1350 kHz
ye
acm
a foe
4 Adjust the VOLUME control keys to your preference.
Notes on AM direct access tuning
¢ As the AM tuning interval is preset at the factory to 10 kHz,
you need not input the last digit “O” of the frequency when
the first two or three digits are input.
lf you change the 10 kHz AM tuning interval to 9 kHz, input
the frequency to the last digit. See “How to change the AM
tuning interval” on page 3.
STR-AV88O
STR-AV880__
If you input a wrong frequency ;
e Press the appropriate band/antenna select key again’and
input the correct frequency.
¢ If you input a frequency outside the receiver’s frequency’
range (FM 87.5 to 108 MHz; AM 530 to 1,610 kHz), the
figures will flash in the display window. In this case, press
the appropriate band/antenna select heya and INBUE the
correct frequency.
STATION SEARCHING
Before station scan tuning, find out receivable frequencies of
stations by station searching.
1 3 2
ie
iiss as
ESE ae
0 @@6 cece de
1 Depress the MAIN POWER switch and press the SYSTEM
POWER switch.
2 Press the FM ANT-A (CATV), FM ANT-B or AM key. The “O”
indication will blink: :
3 Press the SEARCH START key.
The receiver searches receivable stations in the band from
the lowest frequency to the highest frequency and the
stations located are indicated by the squares on the
station spectrum display.
Searching will stop automatically at the lowest frequency
station located.
;
or
o> SN 0 97 ‘ tt or
soeFee or sf} ‘ 98
Bee Saat ‘TT 1 Opt S90 92 94 96 98 100 12 Kt 06 KO Mr
276 100 400 tk ae 1 ie 00 900 1000 100 WOO WoO AME
TONE BALANCE VOLUME FM ANTENNA STEREO Go ! cm
ee OG eee
Repeat these steps for each band (FM and AM).
Once the stations are located, they are retained in memory.
When only a few FM stations or none located, change the
level of the stations to MID or LOW with the FM LEVEL key.
The squares indicating the stations with the selected level
will appear on the station spectrum display.
STATION SCAN TUNING
Once all receivable. stations in your area are located by
station searching, you can select the desired station quickly
while scanning the stations located.
1 Press the FM ANT-A (CATV), FM ANT-B or AM key. The “0”
indication will blink.
2 Input any frequency within the band using the number
keys.
3 Press the STATION SCAN key.
Press the “+.” side for higher frequencies or the “—” side
for lower frequencies.
Each time you press “+” or “—”, a higher or lower
frequency station will be tuned in.
If you keep the key depressed, the receivable stations will
consecutively be tuned in for several seconds. Release the
key when the desired station is received.
To erase the memory of a located station
Tune in the station and press the MEMORY ERASE key. The
memory of the station will be erased and the station will be
skipped over when the STATION SCAN key is pressed later.
MEMORY PRESETTING
Once the frequencies of the stations you want to tune in are
memorized, all you have to do is to press a number key.
A total of 10 stations can be memorized, one to each number
key, in any desired sequence.
oo00 0000
‘0 ©@ ooo0o0 oO
1 Tune in the desired station following the procedure
described in “DIRECT ACCESS TUNING” or “STATION
SCAN TUNING”.
For an FM station, make sure that the IF band and FM
mode settings are appropriate. If necessary, change the
settings manually by pressing the FM iF BAND key and
FM MODE key. These settings will be also memorized.
2 Prags the MEMORY PRESET key. The [ii] (memory)
indicator will appear for a few seconds.
~] (M) Memory indicator
kHz
U
|
a
Li
|
eh
3 While the indicator is displayed, press the desired number
key. The number of the pressed key will appear.
The frequency is now memorized.
Key number
|
SE we jt ¢
Es
ny { Ln
ie
Repeat these steps for each number key.
Notes
¢ if the memory indicator has.gone.off, the station cannot
be memorized. Press the MEMORY. PRESET key again
and proceed to step 3.
¢ If you preset another station to a key on which you have
already preset a station, the first station will be erased.
You cannot erase a station without presetting another
station.

'PRESET TUNING _
You can receive a station only by pressing one of the number
keys to which the station has been memorized.
Memory of the last station received
This receiver includes a memory circuit to remember the
station being received just before the power was turned off.
The station will be automatically tuned in when the power is
turned on again.
MEMORY SCANNING
This function allows you to quickly hear what kind of
programs are being broadcast by the memorized stations.
When you press the MEMORY SCAN key, the memorized
stations are automatically tuned in for several seconds each.
To stop scanning, press the appropriate number key.
STR-AV88O
TO LISTEN TO PROGRAM SOURCES
OTHER THAN BROADCASTS
For details on connections, see the connection diagrams on
pages 19 through 24.
Tape deck 2
i ,
CD player
s a
6
1 Turn on the receiver and connected equipment.
2 Select the speaker system with the SPEAKERS selectors.
3 Select the program source by pressing the desired
FUNCTION key or MONITOR key.
4 When the VIDEO 2 FUNCTION key is pressed, select the
front or rear video 2 inputs with the F/R key.
5 If the MONITOR indicator lights when listening to a
program source other than tape deck 2, press this key to
disengage it.
6 start the program.
7 Adjust the VOLUME control keys to your preference.
Cartridge type selection (for the STR-AV880 only)
Press the CARTRIDGE select key so that the MC (moving-
coil type cartridge) or MM (moving-magnet type cartridge)
lights according to the cartridge being used for your
turntable system.

STR-AV880
To enjoy surround sounds
The Surround Sound system uses a technique that creates
an atmosphere peculiar to movie theaters and concert halls.
You can bring the surround effect of movie theaters and
concert halls to your listening room simply by pressing the
SURROUND SYSTEM key. While the Surround Sound.
system is engaged, the surround system indicator lights in
the display window. To disengage the system, press the .
SURROUND SYSTEM key again.
Surround system indicator
RECEIVING FM SIMULCAST TV PROGRAMS
By connecting a component TV and a TV tuner or VCR, you
can receive FM simulcast TV programs (stereo TV sound
transmitted from an FM radio station) while viewing the TV
program.
5 TVtuneror VCR |
iN es wae sete Secul
TV, VIDEO 1
or VIDEO 21N
Component TV
MONITOR
1 Depress the MAIN POWER switch and press the SYSTEM
POWER switch.
2 Press the TV, VIDEO 1 or VIDEO 2 key.
3 When the VIDEO 2 key is pressed, select the front or rear
video 2 inputs with the F/R key.
4 Turn on the component TV:
5 Select the desired TV program with the TV tuner or VCR.
6 Press the FM/AM key of the receiver and tune in the FM
simulcast TV program.
7 Adjust the VOLUME control keys to-your preference.
RECEIVING FM SIMULCAST CABLE TV
PROGRAMS
By connecting the CATV cable to this receiver, you can
receive FM simulcast cable TV programs while viewing the
picture, without using a signal splitter.
For connection, see “CATV cable connection” on page 25.
1 Depress the MAIN POWER switch and press the SYSTEM
POWER switch.
2 Turn on the component TV.
3 Press the TV, VIDEO 1 or VIDEO 2 and FIR key, and select
the desired CATV program with the TV tuner or VCR.
4 Press the FM ANT-A (CATV) key and tune in the FM
simulcast cable TV program on the receiver.
5 Adjust the VOLUME control keys to your preference.