HST-SE581

SERVICE MANUAL

AEP Model E Model Australian Model
This set is the tuner deck and amplifier

section in SEN-T481.

Manufactured under license from Dolby Laboratories Licensing Corporation. DOLBY and the double-D symbol a and PRO LOGIC are trademarks of Dolby Laboratories Licensing Corporation.

Tape deck Section

Model Name Using Similar Mechanism Tape Transport Mechanism Type

HST-471 TCM-220WR2

SPECIFICATIONS
Tuner section FM stereo, FM / AM superheterodyne tuner (REAR) (CENTER) (WOOFER) 87.5 108.0 MHz FM leadantena 75 unbalanced 10.7 MHz 40 W (at front / center / woofer off at 1 kHz, 8 ) 40 W (at front / rear / woofer off at 1 kHz, 8 ) 70 W (at front / rear / center off at 40 Hz, 4 )
FM tuner section Tuning range Antenna Antenna terminals Intermediate frequency AM tuner section Tuningrange European model: Other models:
Other models: Peak music power output
1,600 W (total) (FRONT) Continuous RMS power output 90 + 90 W (at rear / center / woofer off at 1 kHz, 10% THD, 8 ) (REAR) 40 W (at front / center / woofer off at 1 kHz, 8 ) (CENTER) 40 W (at front / rear woofer off at 1 kHz, 8 ) (WOOFER) 70 W (at front /rear/ center off at 40 Hz, 4 ) Inputs PHONO (phono jacks): sensitivity 2.5 mV, impedance 50 k CD (phono jacks): sensitivity 400 mV, impedance 50 k VIDEO1, 2 (phono jacks): sensitivity 250 mV, impedance 50 k Continued on next page
531 1,602 kHz 531 1,602 kHz (with the interval set at 9 kHz) 530 1,710 kHz (with the interval set at 10kHz) Antenna AM loop antenna, outdoor antenna terminals Intermediate frequency 450 kHz

Amplifier section

European models: (FRONT) DIN power output
90 + 90 W (at rear / center / woofer off at 1 kHz, 8 )
Continuous RMS power output 110 + 110 W (at rear / center / woofer off at 1 kHz, 10% THD, 8 ) 70 W / ch (at SURROUND ON at 1 kHz, 10% THD, 8 )

CASSETTE DECK RECEIVER

MICROFILM
5-3. SCHEMATIC DIAGRAM MAIN SECTION (1/2)
See page 10 for Waveforms. See page 39 for IC Block Diagrams.
5-4. SCHEMATIC DIAGRAM MAIN SECTION (2/2)
See page 39 for IC Block Diagrams.
5-7. SCHEMATIC DIAGRAM DISPLAY SECTION
See page 10 for Waveforms. See page 41 for IC Pin Function.
5-9. SCHEMATIC DIAGRAM SW SECTION

DOLBY NR

5-11. SCHEMATIC DIAGRAM POWER AMP SECTION
5-13. SCHEMATIC DIAGRAM DECK SECTION
5-15. SCHEMATIC DIAGRAM POWER TRANSFORMER SECTION

EXCEPT E MODEL

5-16. IC BLOCK DIAGRAMS
IC300 LV1041M (MAIN BOARD)
L+R RECT L-R RECT DC CUT4 DC CUT3 DC CUT1 DC CUT2 VCS TH VLR TH R RECT R DET3
IC502 LB1641 (MAIN BOARD)
T.S.D MOTOR DRIVE O.C.P MOTOR DRIVE
IC302 LC7822 (MAIN BOARD)
3 OUT IN OUT IN OUT 22 IN 10 OUT VEE LEVEL SHIFT OUT 19 VDD

L RECT

L BPF3

78 R BPF2 1

77 RECT

68 RECT

L BPF2
FWD/REV/STOP CONTROL LOGIC
R BPFBPF RECT LOGIC FF LOGIC LOGIC LOGIC FF RECT BPF 63 L BPF1

MOTOR DRIVE

NOISE FILTER

FWD.IN

REV.IN

62 RT IN

INVERTER

CONTROL

UPC1330HA (AUDIO BOARD)

CE 13 14

18 RESET 17 S
S DC OUT C DC OUT R DC OUT L DC OUT

SHIFT RESISTOR

16 VSS

P B CH CONTROL

61 LT IN

COMPARATER

60 DC CUT V REF VCC C OUT 9 C S OSC P R OUT 11 R B P L OUT L B 54 CLK GND 13 STRIM P VOL/ MUTE DC CUT D P R IN 15 P R B S IN 16 S P DELAY OUT 17 C VOL IN 18 S B S P R B P L PCM DET 19 IREF R OUT 21 R L R NF 22 L NF 23 L OUT 24 NF SW MASTER VOL C S MASTER VOL 43 NS 42 D/A 41 DC CUT 44 A/D VDD 45 VDD B PCM CONTROL 47 OSC 46 OSC B B SRAM P S IN FILTER C P B OUT FILTER B NR DATA DECODER 53 DATA L P B R P B NOISE GEN IEV STRIM V REF S MODE C MODE NOISE FILTER BPF CONTROL C MODE GND NS BPF1 NS BPF2

1 SW R1

3 SW P1

4 CONT

7 SW P2

9 SW R2

STK350-230 (POWER BOARD)

TR3 TR1 R1

S OUT 10

UPC2581V (POWER BOARD)

BIAS CIRCUIT

INPUT NF

TR2 TR4 R2

55 OSC

PROTECTOR

-VEOUT

REG DRIVE PRE DRIVE 4
9 R9 TR8 R4 TR5 R3 D4 D1 D2 R5 R8 R7 D3 TR7 TR6 R6

PRE DRIVE 7

+VEOUT

VCC1 VCC2 VEE

+ VOUT1

VOUT1

VOUT2

+ VOUT2

VSS GND VCC

L IN 14

52 ENABLE P 51 DATA 50 CLK 49 ENABLEVSS
IC401 LC75373ED (MAIN BOARD)

LTOUT LSIN LS1 LVRIN LCOM LS2 LS3 LT1 LT2 LT3 LSOUT

+ + +

22 LFIN 21 LFOUT

C VOL OUT

C OP IN

C OP OUT

S OP OUT

S OP IN

S VOL OUT

C OP NF

VOL REF

S OP NF

OP VREF

S VOL IN

DC CUT

1 RVRIN

2 RCOM

RT1 RT2

8 RTOUT RSIN RS1

RS2 RS3

11 RSOUT

R1 R2 R3 R4 RSELO

VDD 39

LSELO L4 L3 L2 L1

20 LROUT
19 VREF DECODER LATCH SHIFT REGISTER CONTROL CE DI CL VSS 14 RROUT

13 RFOUT 12 RFIN

L+R RECT L-R RECT DC CUT4 DC CUT3 DC CUT1 DC CUT2 VCS TH VLR TH R RECT

R DET3

VCS 2 73

R BPF1

LOGIC FF LOGIC LOGIC

LOGIC FF

63 L BPF1
60 DC CUT V REF VCC C OUT 9 C S OSC P R OUT 11 R B P L OUT L B 54 CLK GND 13 STRIM P VOL/ MUTE DC CUT D P R IN 15 P R B S IN 16 S P DELAY OUT 17 C VOL IN 18 S B S P R B P L PCM DET 19 IREF R OUT 21 R L R NF 22 L NF 23 L OUT 24 NF SW MASTER VOL C S MASTER VOL 43 NS 42 D/A 41 DC CUT VCC 27 C VOL OUT C OP IN GND 30 C OP NF 31 C OP OUT 32 VOL REF 33 S OP OUT 34 S OP NF 35 S OP IN 36 S VOL OUT 37 OP VREF 38 S VOL IN 39 S OUT 40 DC CUT 44 A/D VDD 45 VDD B PCM CONTROL 47 OSC 46 OSC B B SRAM P S IN FILTER C P B OUT FILTER B NR DATA DECODER 53 DATA L P B R P B NOISE GEN IEV STRIM V REF S MODE C MODE NOISE FILTER BPF CONTROL C MODE GND NS BPF1 NS BPF2
1 IN OUT IN OUT IN OUT 22 IN 10 OUT VEE 11 12

T.S.D MOTOR DRIVE

O.C.P MOTOR DRIVE

IN 21 LEVEL SHIFT

20 OUT 19 VDD
IC602 UPC1330HA (AUDIO BOARD)

CE 13 DI 14

COMPARATER 1 SW RGND 3 SW PCONT 5 GND 6 VCC 7 SW PGND 9 SW R2
IC651 STK350-230 (POWER BOARD)
IC151 UPC2581V (POWER BOARD)
REG DRIVE PRE DRIVE PRE DRIVE 10 DRIVE

VCC2 VEE

RTOUT RSIN RS1

Black* () Red* () Insert this portion.
Pull the lever toward you after connecting the antenna.
* The color of your speaker cords might be different. See the manual provided with your speaker system for details.
2 Connect the rear speakers.
Connect the speaker cords to the REAR SPEAKER terminals of the same color.

For other models

FM 75 AM
3 Connect the center speaker.
Connect the speaker cords to the CENTER SPEAKER terminals of the same color.
4 Connect the superwoofer.
Connect the speaker cords to the SUPER WOOFER terminals of the same color.

continued

Step 1: Hooking up the system (continued)
European, Australian, Singaporean and Malaysian models

6 Connect the CD player.

Use the audio cord, matching the color of the plugs and the jacks.
Other models Insert the plugs firmly, pushing them in all the way.
7 Set VOLTAGE SELECTOR to the
position of your local power line voltage (only on models supplied with a voltage selector).
9 Connect the power cord from the
system to a wall outlet. Inserting two R6 (size AA) batteries into the remote

220240V

110120V
8 Connect the AC power cord from

] } ] }

the CD player to the AC OUTLET on the system.
By connecting the AC power cord from the CD player to the AC OUTLET, you can turn on/off the CD player automatically when you turn on/off the system.
With normal use, the batteries should last for about six months. When the remote no longer operates the system, replace both batteries with new ones.
If you do not use the remote for a long period of time, remove the batteries to avoid possible damage from battery leakage.

Before you begin

Press the 1/u switch on the system to turn it on. When the STANDBY lamp on the system is lit in red, you can turn on the system by pressing one of the SYSTEM CONTROL/ FUNCTION buttons on the remote. Turning the power off by pressing SYSTEM STANDBY on the remote sets the system to STANDBY mode (the STANDBY lamp is lit). If you are not going to use the system for a long time, be sure to turn it off by pressing the 1/u switch on the system.

STANDBY

Changing the factory setting of a function button
If the factory settings of the SYSTEM CONTROL/FUNCTION buttons dont match your system components, you can change them. For example, if you have two CD players and you dont have an MD deck, you can assign the TAPE button to your second CD player. Note that the settings of the TUNER and PHONO buttons cannot be changed.

SYSTEM CONTROL/ FUNCTION

Number buttons

P 0 ) 0

SYSTEM STANDBY SYSTEM CONTROL/ FUNCTION
Hold down the SYSTEM CONTROL/FUNCTION button whose function you want to change (TAPE, for example). Press the corresponding number button of the component you want to assign to the SYSTEM CONTROL/FUNCTION button (1 CD player, for example).

Now you can use the TAPE button to control a second CD player. To select other functions, refer to the table on next page.
Using other components with the remote
You can operate Sony TVs, VCRs and CD players CDP-C661/CDP-CX571 using the supplied remote. Press one of the SYSTEM CONTROL/FUNCTION buttons to select the component you want to use. Refer to Remote button descriptions on page 30 for details.
The number buttons are assigned to select the functions as follows:
Number button >10 Operates CD player DAT deck MD deck Tape deck A Tape deck B LD player VCR (remote control mode VTR 1*) VCR (remote control mode VTR 2*) VCR (remote control mode VTR 3*) TV DBS
Step 2: Setting up the speakers
By connecting the speakers, you can enjoy Dolby Pro Logic Surround sound. Dolby Pro Logic Surround is a decoding system standardized in TV programs and movies. Dolby Pro Logic Surround improves sound imaging by using four separate channels. These channels manipulate the sound and enhance the action as it happens on the screen.
Selecting the Dolby Pro Logic Surround mode
To take advantage of Dolby Pro Logic Surround, you should connect at least one pair of rear speakers and/or one center speaker, plus a TV and a VCR. Also, to enjoy a full effect, you need to select the appropriate Dolby Pro Logic mode (NORMAL, WIDE, 3CH or PHANTOM modes) according to your speaker system.
* Sony VCRs are operated with a VTR 1, 2 or 3 setting. These correspond to Beta, 8mm and VHS respectively.
To reset the setting to the factory setting
Repeat the above procedure.

NORMAL mode

Select NORMAL mode if you have front and rear speakers and a small center speaker such as those provided with this system. Since a small speaker cannot produce enough bass, the bass sound of the center channel is output from the front speakers.
Center speaker Front speaker (L) Front speaker (R)

Rear speaker (L)

Rear speaker (R)

WIDE mode

Select WIDE mode if you have front and rear speakers and a large center speaker. With this mode, you can take full advantage of Dolby Surround sound.

Positioning the speakers

Before you connect them, determine the best location for your speakers.
Place the front speakers at the angle of 45 degrees from your listening position.
Center speaker Front speaker (R) 45

Front speaker (L)

3CH mode
Select 3CH (3 channel logic) mode if you have front and center speakers but no rear speakers. The sound of the rear channel is output from the front speakers to let you experience some of the surround sound without using rear speakers.
Place the center speaker so it is placed at about the same height as the front speakers (A). Align the center speaker with the front speakers or place it a little backward from the front speakers position (B).

PHANTOM mode

Select PHANTOM mode if you have front and rear speakers but no center speaker. The sound of the center channel is output from the front speakers.
Front speaker (L) Front speaker (R)
Step 2: Setting up the speakers (continued)
Adjusting the speaker volume
To enjoy Dolby Pro Logic Surround sound, select the appropriate Dolby Pro Logic mode, then adjust the volume of each speaker using the test tone that the system provides.
Place the rear speakers facing each other at about 60 to 90 cm above your listening position.

Rear speaker 60 to 90 cm

+ ) ( p P
Press DOLBY (or SURROUND MODE on the remote repeatedly) to select DOLBY. Press CENTER MODE repeatedly until the Dolby Pro Logic mode you want appears in the display.
Select the Dolby Pro Logic mode according to your speaker setup (see page 8). Each time you press the button, the indication changes as follows: n NORMAL n WIDE PHANTOM N 3CH N
Press SURROUND T.TONE on the remote when you are done adjusting.
The test tone is turned off.
Press SURROUND DELAY on the remote repeatedly to adjust the delay time.
For more effective surround sound, delay the output from the rear speakers. If you have placed the rear speakers in a large room or apart from your listening position, set the delay time shorter. Each time you press the button, the indication changes as follows: n 20 ms n 30 ms n 15 ms
Press SURROUND T.TONE on the remote.
You will hear the test tone from each speaker in the following order. Adjust the volume of the test tone. NORMAL, WIDE: n Front (left) n Center Rear N Front (right) N 3CH: n Front (left) n Center Front (right) N PHANTOM: n Front n Rear Notes
You cannot set the delay time if you select the 3CH mode. The test tone feature works only for Dolby Pro Logic Surround mode.
If you turn MASTER VOLUME on the unit, all the speaker volumes change.
Adjust the volume level so that the test tone from each speaker is at the same level from your listening position.
To adjust the level of center speaker, press CENTER, then or + (or LEVEL CENTER or + on the remote). To adjust the level of rear speakers, press REAR, then or + (or LEVEL REAR or + on the remote).

Connecting optional AV components
To enhance your system, you can connect optional components. Refer to the instructions of each component.

Connecting a turntable

Make sure to match the color of the plugs and the jacks.
Connecting a TV game/LD player
To the analog (line) output of a turntable

y SIGNAL GND terminal

To listen to the sound of a turntable

Press PHONO. Tip

To reduce the noise, connect the earth lead provided with your turntable to the y SIGNAL GND terminal of the unit.
To the audio output of a TV game/LD player
To listen to the sound of a TV game/LD player

Press VIDEO 2.

Connecting a VCR
To the audio input of a VCR
To the audio output of a VCR
To listen to the sound of a VCR

Press VIDEO 1.

Connecting optional outdoor antennas
Connect the outdoor antenna to improve the reception.

AM antenna

Connect a 6- to 15- meter insulated wire to the AM antenna terminal. Leave the supplied AM loop antenna connected. For European model
Screw clamp Insulated wire (not supplied)

FM COA XIA L

FM antenna
Connect the optional FM outdoor antenna. You can also use the TV antenna instead. For European model

Screw clamp

IEC standard socket connector (not supplied) Ground wire (not supplied)
Ground wire (not supplied)
Insulated wire (not supplied)
75-ohm coaxial cable (not supplied) Ground wire (not supplied)

Important

If you connect an outdoor antenna, ground from y SIGNAL GND terminal with the screw clamp against lightning. To prevent a gas explosion, do not connect the ground wire to a gas pipe.
Presetting radio stations
You can preset up to 30 stations, 20 for FM and 10 for AM.
Press TUNING + or (or CH/PRESET + or on the remote).
Press + for a higher frequency. Press for a lower frequency. To tune in a station automatically (Automatic Tuning) Hold down TUNING + or for about one second and release it when the frequency changes. When the system tunes in a station, it stops automatically and TUNED appears in the display. Tip

To stop automatic tuning before a station is tuned in, press TUNING + or.
To tune in a station with a weak signal (Manual Tuning) Press TUNING + or repeatedly to select the frequency you want. TUNED appears when a station is tuned in.

SYSTEM STANDBY

Press MEMORY.
MEMORY appears and the last preset number flashes in the display.

MEMORY

Preset number
Use the number buttons (1 9, 0/10 (or 0 on the remote) and >10) to select a preset number.
To select Press 5 0/10 (or 0) >10 n 1 n 5 >10 n 2 n 0/10 (or 0) 5
Turn on the system and press TUNER. Press BAND repeatedly to select FM or AM.
The system stores the station at the preset number you specified.
Repeat steps 2 to 5 to store other stations.
Scanning the preset memory
To change the preset number

Start over from step 2.

To change the AM tuning interval (except for European model)
The AM tuning interval is factory-preset to 9 kHz. To change the AM tuning interval, press BAND repeatedly to select AM, then turn off the power. While holding down MEMORY, turn the power back on. When you change the interval, all the preset stations will be erased. To reset the interval, repeat the same procedure. Tips
If MEMORY disappears before you select the preset number, press MEMORY again. The preset stations are retained for a few days even if you pull off the power cord or if a power interruption occurs.
Press BAND repeatedly to select FM or AM. Press MEMORY SCAN.
A preset number flashes in the display.

Press TUNING + or.

Press + to scan higher preset numbers. Press to scan lower preset numbers. You will hear each preset station for about four seconds.
Press MEMORY SCAN again as soon as the station you desire is tuned in.
This stops the memory scan.
While scanning preset stations, a certain station with a weak signal may be skipped. Tune in the station manually.

Listening to the radio

Preset Tuning
Preset radio stations in the tuners memory first (see page 14).
Press BAND repeatedly to select FM or AM. Use the number buttons (1 9, 0/10 (or 0 on the remote) and >10) to select a preset number.
To select Press 5 0/10 (or 0) >10 n 1 n 5 >10 n 2 n 0/10 (or 0) 15 20

STEREO/MONO

TUNING /+

When using the remote

Press CH/PRESET + for higher preset numbers. Press CH/PRESET for lower preset numbers.

MASTER VOLUME

Repeat steps 1 and 2 to listen to other preset stations.

To adjust the volume

Turn MASTER VOLUME (or press MASTER VOL +/ on the remote).
To listen to non-preset radio stations
After step 1, hold down TUNING + or (or CH/PRESET + or on the remote) for about one second and release it when the frequency indication changes. Scanning stops when the system tunes in a station (Automatic Tuning). After step 1, press TUNING + or (or CH/PRESET + or on the remote) repeatedly to select the frequency you want. TUNED appears when a station is tuned in (Manual Tuning). Tips

MASTER VOL +/

When an FM stereo program is noisy, press STEREO/MONO so that MONO appears in the display. There will be no stereo effect, but the reception will improve. Press the button again to restore the stereo effect. To improve broadcast reception, reorient the supplied antennas.

CH/PRESET +/

Playing a tape
You can use any type of tape, TYPE-I (normal), TYPE-II (CrO2) or TYPE-IV (metal), since the deck automatically detects the tape type. The supplied remote is factory set to operate DECK B. To operate DECK A, press number button 4 while pressing down TAPE. To select DECK B again, press number button 5 while pressing down TAPE.
Turn on the system and press TAPE. Press and insert a recorded tape.
The illustration shows when you insert a recorded tape into deck A.
With the side you want to play facing you
Set DIRECTION to select the side(s) to play.
Set to A to play one side. Set to a to play both sides continuously*. To play both decks in succession*, set to RELAY.

P 0 ) 0 R r )

Press.
Press to play the reverse side. Playback starts.

PAUSE P DOLBY NR

* The deck automatically stops after playing back five times.
Do this Press p. Press PAUSE P (or P on the remote). Press again to resume play. Press ) (for front side) or 0 (for reverse side) when the deck is stopped. Press 0 (for front side) or ) (for reverse side) when the deck is stopped. Press when the deck is stopped. Turn MASTER VOLUME (or press MASTER VOL +/ on the remote).
Stop play Pause (deck B only) Fast-forward

= + ) ( p P

Rewind
Take out the tape Adjust the volume
Playing a tape (continued)
To play a tape recorded with the Dolby NR system, set DOLBY NR to B. The Dolby NR (noise reduction) system eliminates tape hiss noise by boosting low-level signals in the high-frequency range during recording, then lowering them during playback.

Recording on a tape

You can record from CD, or just the songs you want to record from the middle of the tape. See Recording from a tape (page 20) to make a copy of the tape. You can use TYPE-I (normal) or TYPE-II (CrO2) tapes. The recording level is automatically adjusted.

DOLBY NR

Press one of the function buttons to select the sound source to be recorded. Press and insert a blank tape into deck B.
With the side you want to record on facing you
Set DIRECTION to select the side(s) to be recorded on.
Set to A to record on one side. Set to a to record on both sides*.

Press REC r.

The indicator lights up for recording on the side facing you. If it doesnt, press once. The tape deck automatically adjusts the recording level.

Recording from the radio

You can record a radio program on a tape by calling up the preset station. You can use TYPE-I (normal) or TYPE-II (CrO2) tapes. The recording level is automatically adjusted.

Press PAUSE P or.

Press twice to start recording from the reverse side. Recording starts.
Start playing the sound source.
* Recording stops when the tape reaches the end of reverse side.
To Stop recording Pause Take out the tape
Press p. PAUSE P. Press again to resume recording. when the deck is stopped.
To record with the Dolby NR system, set DOLBY NR to B before you start recording. To protect recordings against accidental erasure, break out the record-protect tab (see page 26).
Press and insert a blank tape into deck B. Press BAND repeatedly to select FM or AM. Use the number buttons (1 9, 0/10 (or 0 on the remote) and >10) to select a preset number.
To select Press 5 0/10 (or 0) >10 n 1 n 5 >10 n 2 n 0/10 (or 0)
If you press buttons on deck A while deck B is recording, the recorded sound will be interrupted.
Recording from the radio (continued)

Set DIRECTION.

Recording from a tape

Dubbing

You can copy a tape in deck A to a tape in deck B at normal or high speed. You can use TYPE-I (normal) or TYPE-II (CrO2) tapes. The recording level is automatically adjusted.
The tape deck stands by for recording.

P R 0 r )

To stop recording

Press p. Tips

To record non-preset stations, tune in the station you want using Manual Tuning or Automatic Tuning feature (see page 14). If noise is heard while recording an AM radio program, move the AM antenna to reduce the noise. To record with the Dolby NR system, set DOLBY NR to B before you start recording.
Press and insert a recorded tape into deck A and a blank tape into deck B. Set DIRECTION to select the side(s) to be recorded on.
Set to A to record on one side. Set to a* or RELAY** to record on both sides.
* Recording on the reverse side in deck B starts independently of playback in deck A. ** Recording on the reverse side in deck B starts simultaneously with playback of the reverse side in deck A.

Select the dubbing speed.
Press NORMAL for normal-speed dubbing. Press HIGH for high-speed dubbing. The selected buttons indicator lights up and the tape deck stands by for dubbing.
Select the side from which to start dubbing.
Press to record from the front side. Press to record from the reverse side.
Inserting a blank space during recording

Record Muting

You can insert a blank space of 4 seconds between each track or erase unwanted portions on a tape.
Press PAUSE P to start dubbing.
To stop normal-speed dubbing

Press p on deck B.

To stop high-speed dubbing
Press p on both decks. Tips
During high-speed dubbing, only p is operative. If the original tape was recorded with Dolby NR B, dubbing is automatically performed with Dolby NR B. If, however, you want to monitor the sound during normal-speed dubbing, set DOLBY NR to B.

Start recording.

If a TV set is placed near the system, noise may occur during high-speed dubbing. In that case, turn the TV set off or move it away from the system.
Dubbing only specific portions
You can skip unwanted portions during normal-speed dubbing. 1 Press p on deck A at the portion you want to skip. Deck B changes to recording pause. 2 Locate the point you want to resume recording on deck A, then stop the tape. 3 Press PAUSE P to resume dubbing.
Press REC MUTING R at the point you want to insert a blank space.
REC flashes in the display and a blank space is recorded on the tape. After 4 seconds, P lights up and the tape deck changes to recording pause.
Press PAUSE P or to resume recording.
While dubbing at normal speed, press PAUSE P to resume recording.
To insert a blank space longer than 4 seconds, hold down REC MUTING R as long as you want. After 4 seconds, REC flashes faster. When you release REC MUTING R, P indicator lights up and the tape deck changes to recording pause. Press PAUSE P to resume recording.

Adjusting the sound

You can adjust the bass and treble sound.
Selecting the preset sound fields
You can take advantage of sound fields simply by selecting one of the five preprogrammed effects according to the program you want to play.

SOUND FIELD

PHONES
Press TONE*, then + or to adjust the tone quality.

* Each time you press TONE, the adjusting mode changes between bass and treble.
Press one of the SOUND FIELD buttons so that the sound field you want appears in the display.
Select the appropriate sound field as follows:
Press 1 ROCK 2 POPS To reproduce Powerful, clear sounds, emphasizing low and high audio. Light, bright sounds, emphasizing high and middle range audio.
To listen through the headphones
Connect the headphones to PHONES.
3 CLASSIC Broad, open sounds with plenty of reverberation using a surround effect. 4 MOVIE 5 GAME A theater-like environment using a surround effect. Maximum audio impact from video game software using a surround effect.
To turn off the sound fields
Press SOUND FIELD you have selected. OFF appears, and the sound fields effect is defeated.
To select with the remote
Press SOUND FIELD repeatedly until the sound field you want appears. Each time you press the button, the display changes as follows: n ROCK n POPS n CLASSIC OFF N GAME N MOVIE N Tip
If you want to listen to CLASSIC, MOVIE or GAME without a surround effect, press one of the SURROUND MODE buttons to turn off the respective indicator.
Selecting the surround mode
You can take advantage of surround sound simply by selecting one of the three preprogrammed surround modes according to the type of program you want to play.
DOLBY PRO LOGIC indicator

SURROUND MODE

Press one of the SURROUND MODE buttons (DOLBY, HALL or SIMULATED) to turn on the surround sound.
Selected modes indicator lights up in the display. The DOLBY PRO LOGIC indicator lights up when you select the DOLBY mode. Select the appropriate surround mode as follows:
Press DOLBY To decode programs processed with Dolby Pro Logic Surround and create the atmosphere of a movie theater. get the atmosphere of a large hall. reproduce a simulated stereo effect to monaural sound.

HALL SIMULATED

Selecting the surround mode (continued) To turn off surround sound
Press SURROUND MODE (DOLBY, HALL or SIMULATED) you have selected.
Emphasizing the bass sound
You can reinforce the bass sound of your superwoofer and obtain a greater sense of atmosphere. Use the remote to adjust the superwoofer from your listening position.
Selecting with the remote
The remote also lets you select the surround mode.

9 ( p P

SUPER WOOFER indicator
Press SURROUND MODE repeatedly until the surround mode you want appears.
Each time you press the button, the display changes as follows: n DOLBY n HALL N OFF N SIMULATED
You can find Dolby Surround-encoded software by looking at the packaging. However, some videos and laser discs may use Dolby Surround sound even if its not indicated on the package.

Press WOOFER ON/OFF (or S.WOOFER ON/OFF on the remote) to turn on the superwoofer.
The SUPER WOOFER indicator lights up.
Press S.WOOFER PHASE on the remote to select the polarity that provides the best bass reproduction. Press WOOFER, then or + to adjust the superwoofer level (or LEVEL S.WOOFER +/ on the remote).

Precautions

On operating voltage
Before operating the system, check that the operating voltage of your system is identical with the voltage of your local power supply.

On safety

You can only adjust the superwoofer level when the superwoofer is on (when the SUPER WOOFER indicator is lit). You cannot use the superwoofer when you select PHONO (SELECT OTHER FUNCTION appears). The unit is not disconnected from the AC power source (mains) as long as it is connected to the wall outlet, even if the unit itself has been turned off. Unplug the system from the wall outlet (mains) if it is not to be used for an extended period of time. To disconnect the cord (mains lead), pull it out by the plug. Never pull the cord itself. Should any solid object or liquid fall into the component, unplug the stereo system and have the component checked by qualified personnel before operating it any further. The AC power cord must be changed only at the qualified service shop.

On placement

Place the stereo system in a location with adequate ventilation to prevent heat build-up in the stereo system. Do not place the system in an inclined position. Do not place the system in locations where it is; Extremely hot or cold Dusty or dirty Very humid Vibrating Subject to direct sunlight.
Precautions (continued) Before placing a cassette in the tape deck
Take up any slack in the tape. Otherwise the tape may get entangled in the parts of the tape deck and become damaged.

Cleaning the tape heads

Clean the tape heads after every 10 hours of use. When the tape heads become dirty; the sound is distorted there is a decrease in sound level the sound drops out the tape does not erase completely the tape does not record. Make sure to clean the heads before you start an important recording or after playing an old tape. Use a separately sold dry-type or wet-type cleaning cassette. For details, refer to the instructions of the cleaning cassette.

When using a tape longer than 90 minutes
The tape is very elastic. Do not change the tape operations such as play, stop, and fast-winding etc. frequently. The tape may get entangled in the tape deck.
Demagnetizing the tape heads
Demagnetize the tape heads and the metal parts that have contact with the tape after every 20 to 30 hours of use with a separately sold demagnetizing cassette. For details, refer to the instructions of the demagnetizing cassette.
To save a tape permanently
To prevent a tape from being accidentally recorded over, break off the cassette tab from side A or B as illustrated. If you later want to reuse the tape for recording, cover the broken tab with adhesive tape.

Cleaning the cabinet

Use a soft cloth slightly moistened with mild detergent solution. Never use strong solvents, such as thinner or benzine, since they may damage the finish. If you have any questions or problems concerning your stereo system, please consult your nearest Sony dealer.

Side A

Tab of side B

Tab of side A

When you are using a TYPE-II (CrO2) or TYPE-IV (metal) cassette, be careful not to cover the detector slots which allow the tape deck to automatically detect the type of tape.

TYPE-II

TYPE-IV
Detector slots (Do not cover with adhesive tape.)

Troubleshooting

If you run into any problem using this stereo system, use the following check list. First, check that the power cord is connected firmly and the speakers are connected properly and firmly. Should any problem persist, consult your nearest Sony dealer.

Speakers

Sound comes from one channel or unbalanced left and right volume. Check the speaker connection and speaker placement. There is no sound from the speakers except the center speaker. The source being played back is monaural. Turn off the Pro Logic mode. There is no sound from the center speaker. The Pro Logic mode is set to PHANTOM mode. Select another mode. Adjust the CENTER level appropriately (see page 11). There is no sound from the rear speakers. The Pro Logic mode is set to 3CH logic mode. Select another mode. Adjust the REAR level appropriately (see page 11). The software being played back has limited sound effects. Check the volume with the test tone.

General

There is no sound. Turn MASTER VOLUME clockwise. The headphones are connected. Connect the antennas. Make sure the speaker connection is secure. The protective device on the cassette deck receiver has been activated bacause of a short circuit. (PROTECT flashes.) Turn off the cassette deck receiver, eliminate the short-circuit problem and turn on the power again. There is severe hum or noise. A TV or VCR is placed too close to the stereo system. Move the system away from the TV or VCR. Make sure you connect a ground wire to the y SIGNAL GND terminal. The remote does not function. There is an obstacle between the remote and the system. The remote is not pointing in the direction of the systems sensor g. The batteries have run down. Replace the batteries. Pressing TV CONTROL sets the remote to operate the TV only. In this case, press one of the SYSTEM CONTROL/ FUNCTION buttons before operating the cassette deck receiver (etc.).

Tape Deck

The tape operating buttons do not work. Wait until the P indication stops flashing. (Operation is not possible for the first three seconds after the power is turned on.) Insert the tape properly and close the cassette holder completely. The tape does not record. No tape in the cassette holder. The tab has been removed from the tape (see To save a tape permanently on page 26). The tape has reeled to the end. The tape does not record nor play or there is a decrease in sound level. The heads are dirty. Clean them (see Cleaning the tape heads on page 26). The record/playback heads are magnetized. Demagnetize them (see Demagnetizing the tape heads on page 26).
Troubleshooting (continued)
You cannot tune in a frequency. Adjust the antennas. Connect the FM outdoor antenna. Preset the stations again if youve moved. Severe hum or noise ("TUNED" or "STEREO" flashes in the display). Adjust the antenna. The signal strength is too weak. Connect the outdoor antenna. Tune to a correct frequency. Move the system away from the TV or VCR. A stereo FM program cannot be received in stereo. Press STEREO/MONO so that STEREO appears.
The tape does not erase completely. The record/playback heads are magnetized. Demagnetize them (see Demagnetizing the tape heads on page 26). There is excessive wow or flutter, or the sound drops out. The capstans or pinch rollers are dirty. Clean them (see Cleaning the tape heads on page 26). Noise increases or the high frequencies are erased. The record/playback heads are magnetized. Demagnetize them (see Demagnetizing the tape heads on page 26). The sound is unbalanced. Make sure the Dolby NR setting matches the setting used when the tape was recorded. Move the system away from the TV or VCR. The tape stops before the tape has been fully rewound. There is slack in the tape. Take up the tape slack. The cassette shell is bent. Use another cassette. There is excessively loud tape transport noise during fast-forwarding or rewinding. This noise is caused by the cassette and is not a mechanical problem. does not work. There was a power failure or the power cord was disconnected during tape operation. Reconnect the power. There is a short break in sound output during playback. You pressed ), 0 or p on one deck while the other deck was playing. Or you pressed PAUSE P, or on deck B while deck A was playing.