AIWA NSX-T99E (01) PDF MANUAL

Report any errors on this page in the comment box below.

PDF Manual Excerpt:

NSX-T99

LH NSX-T99E

HA

SERVICE MANUAL

COMPACT DISC STEREO

BASIC TAPE MECHANISM : 2ZM-3MK2 PR4NM CASSETTE RECEIVER

BASIC CD MECHANISM : 6ZG-1 ZRNDM

SYSTEM

CASSEIVER CD

SPEAKERS

CONTROL REMOTE

NSX-T99 CX-NT99

SX-WNT99 RC-ZAS04 NSX-T99E CX-NT99E

• This Service Manual is the “Revision Publishing” and replaces “Simple Manual” NSX-T99/T99E, (S/M Code No. 09-002-426-5T1).

• If requiring information about the CD mechanisim, see Service Manual of 6ZG-1, (S/M Code No. 09-001-338-7N2)

S/M Code No. 09-003-426-5R1

R

E

V

IS

IO

D

N

A

T

A


SPECIFICATIONS

<FM Tuner section>

<Compact disc player section> Tuning range 87.5 MHz to 108 MHz

Laser Semiconductor laser (λ =780 nm) Usable sensitivity(IHF) 13.2 dBf

D-A converter 1 bit dual Antenna terminals 75 ohms (unbalanced)

Signal-to-noise ratio 83 dB (1 kHz, 0 dB) Harmonic distortion 0.05 % (1 kHz, 0 dB) <AM Tuner section>

Wow and flutter Unmeasurable Tuning range 531 kHz to 1602 kHz (9 kHz step)

530 kHz to 1710 kHz (10 kHz step)

<Speaker system SX–WNT99> Usable sensitivity 350 uV/m

Cabinet type 4 way, built-in subwoofer Antenna Loop antenna

Speakers Subwoofer :

<Amplifier section>

200 mm ( 77/

8

Mid-high frequency amplifier

Power output Rated: 56 W + 56 W

(8 ohms, THD 1 %,1 kHz) Reference: 70 W + 70 W (8 ohms, THD 10 %,1 kHz) Total harmonic distortion 0.3 % (28 W, 1 kHz, 8 ohms,

DIN AUDIO) Low frequency amplifier

Power output Rated: 167 W + 167 W

(6 ohms, THD 1 %,75 Hz) Reference: 210 W + 210 W (6 ohms, THD 10 %,75 Hz) Total harmonic distortion 0.3 % (84 W,75 Hz,6 ohms,

DIN AUDIO) without connecting to surround speakers Inputs VIDEO/AUX : 300 mV (adjustable)

MD : 300 mV (adjustable) MIC1,MIC2 : 1.0 mV (10 kohms) LINE OUT : 150 mV Outputs SPEAKERS HIGH FREQ :

accept speakers of 8 ohms or more SPEAKERS LOW FREQ : accept speakers of 6 ohms or more SURROUND SPEAKERS : accept speakers of 8 to 16 ohms PHONES (stereo jack) : accepts headphones of 32 ohms or more

<Cassette deck section> Track format 4 tracks, 2 channels stereo Frequency response CrO2 tape: 50 Hz – 16000 Hz

Normal tape: 50 Hz – 15000 Hz Signal to noise ratio 60dB (Dolby B NR ON, CrO2 tape

peak level) Recording system AC bias Heads Deck 1: Playback head x 1

Deck 2: Recording/Playback head

x 1, erase head x 1

in.) cone type Mid range: 100 mm ( Tweeter :

315/

16

in.) cone type

60 Super mm Tweeter ( 23/

8

in.) :

cone type

Impedance 20 6 ohms mm (13/

/ 8 16

ohms

in.) ceramic type

Output sound pressure level 87 dB/W/m Dimensions (W x H x D) 260 x 463 x 314 mm Weight (101/

8.0 kg 4

x (17 181/

lbs. 4

x 123/

10 oz)

8

in. . )

<General> Power requirements 120 V/220-230 V/240 V

(switchable ) 50/60Hz Power consumption 275W Dimensions of main unit 300 x 382.6 x 396.4mm Weight of main unit (117/ 13.7 8

kg x 151/ (30 8

lbs. x 15 3 5/

oz) 8

in.)

Standby power consumption If the power-economizing mode is OFF: 36 W If the power-economizing mode is ON: 0.9 W

• Design and specifications are subject to change without notice.

• Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation. "DOLBY" and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.

• The word "BBE"and the "BBE symbol" are trademarks of BBE Sound, Inc. Under license from BBE Sound,Inc.

– 2 –


PROTECTION OF EYES FROM LASER BEAM DURING SERVICING

This set employs laser. Therefore, be sure to follow carefully

CAUTION the instructions below when servicing.

Use of controls or adjustments or performance of proce- dures other than those specified herin may result in WARNING!!

hazardous radiation exposure. WHEN SERVICING, DO NOT APPROACH THE LASER EXIT WITH THE EYE TOO CLOSELY. IN CASE IT IS

ATTENTION NECESSARY TO CONFIRM LASER BEAM EMISSION.

L’utillisation de commandes, réglages ou procédures BE SURE TO OBSERVE FROM A DISTANCE OF MORE

autres que ceux spécifiés peut entraîner une dangereuse THAN 30cm FROM THE SURFACE OF THE OBJEC-

exposition aux radiations. TIVE LENS ON THE OPTICAL PICK-UP BLOCK.

ADVARSEL s Caution: Invisible laser radiation when

Usynlig laserståling ved åbning, når sikkerhedsafbrydereer open and interlocks defeated avoid

ude af funktion. Undgå udsættelse for stråling. exposure to beam. s Advarsel: Usynlig laserståling ved åbning, når sikkerhedsafbrydere er ude af funktion. Undgå udsættelse for stråling.

This Compact Disc player is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is located on the rear exterior.

VAROITUS! Laiteen Käyttäminen muulla kuin tässä käyttöohjeessa mainitulla tavalla saataa altistaa käyt-täjän turvallisuusluokan 1 ylittävälle näkymättömälle lasersäteilylle.

VARNING! Om apparaten används på annat sätt än vad som specificeras i denna bruksanvising, kan användaren utsättas för osynling laserstrålning, som överskrider gränsen för laserklass 1.

Precaution to replace Optical block

(KSS-213F)

Body or clothes electrostatic potential could ruin laser diode in the optical block. Be sure ground body and workbench, and use care the clothes do not touch the diode.

1) After the connection, remove solder shown in

right figure.

PICK-UP Assy P.C.B

Solder

– 3 –

CLASS 1 LASER PRODUCT KLASSE 1 LASER PRODUKT LUOKAN 1 LASER LAITE KLASS 1 LASER APPARAT


NOTE ON BEFORE STARTING REPAIR 1. Forced discharge of electrolytic capacitor of power supply block

When repair is going to be attempted in the set that uses relay circuit in the power supply block, electric potential is kept charged across the electrolytic capacitors (C101, 102) even though AC power cord is removed. If repair is attempted in this condition, secondary defect can occur. In order to prevent the secondary trouble, perform the following measures before starting repair work.

Discharge procedure 1 Remove the AC power cord.

MAIN C.B

2 Connect a discharging resistor at an end of lead wire that

D101 has clips at both ends. Connect the other end of the lead wire to metal chassis. 3 Contact the other end of the discharging resistor to the positive (+) side (+VH) of C101. (For two seconds)

3 C101 C102

4

4 Contact the same end of the discharging resistor as step 3 to the negative (-) side (-VH) of C102 in the same way. (For two seconds) 5 Check that voltage across C101 and C102 has decreased to 1 V or less using a multimeter or an oscilloscope.

2 2

Select a discharging resistor referring to the following table. Fig-1

Charging voltage (V) Discharging (C101, 102) resistor (Ω)

Rated power (W) Parts number

25-48 100 3 87-A00-247-090

49-140 220 5 87-A00-232-090

Note: The reference numbers (C101, C102) of the electrolytic capacitors can change depending on the models. Be sure to check the

reference numbers of the charging capacitors on schematic diagram before starting the discharging work.

2. Check items before exchanging the MICROCOMPUTER

Be sure to check the following items before exchanging the MICROCOMPUTER. Exchange the MICROCOMPUTER after confirming that the MICROCOMPUTER is surely defective.

2-1. Regarding the HOLD terminal of the MICROCOMPUTER

When the HOLD terminal (INPUT) of the MICROCOMPUTER is “H”, the MICROCOMPUTER is judged to be operating correctly. When this terminal is “L”, the main power cannot be turned on. Therefore, be sure to check the terminal voltage of the HOLD terminal before exchange. When the MICROCOMPUTER is not defective, the HOLD terminal can also go “L” when the POWER AMPLIFIER has any abnormalities that triggers the abnormality detection circuit on the MAIN C. B. that sets the HOLD terminal to “L”.

• Good or no good judgement of the MICROCOMPUTER 1 Turn on the AC main power. 2 Confirm that the main power is turned on and the HOLD terminal of the MICROCOMPUTER keeps the “H” level or not. 3 When the HOLD terminal is “L” level, the abnormality detection circuit is judged to be working correctly and the

MICROCOMPUTER is judged to be good.

– 4 –


In such a case, check also if the POWER AMPLIFIER circuit or power supply circuit has any abnormalities or not.

2-2. Regarding reset

There are cases that the machine does not work correctly because the MICROCOMPUTER is not reset even though the AC power cord is re-inserted, or the software reset (pressing the STOP key + POWER key) is performed. When the above described phenomenon occurs, it can lead to wrong judgement as if the MICROCOMPUTER is defective and to exchange the MICROCOMPUTER. In such a case, perform the forced-reset by the following procedure and check good or no good of the MICROCOMPUTER. 1 Remove the AC power cord.

R

O

C

O

M

P

U

T

18 E

R

15

FRONT C.B

M

I

C

%

VSS

C113

C113

VDD

MICRO- COMPUTER

FRONT C.B

Short with tweezers.

Fig-2-2

2 Short both ends of the electrolytic capacitor C113 that is connected to VDD of the MICROCOMPUTER with tweezers. 3 Connect the AC power cord again. If the MICROCOMPUTER returns to the normal operation, the MICROCOMPUTER is

good.

Note: The reference number or MICROCOMPUTER pin number of transistor (Q110) and electrolytic capacitor (C113) can change depending

on the models. Be sure to check the reference numbers on schematic diagram before starting the discharging work.

2-3. Confirmation of soldering state of MICROCOMPUTER

Check the soldering state of the MICROCOMPUTER in addition to the above described procedures. Be sure to exchange the MICROCOMPUTER after surely confirming that the trouble is not caused by poor soldering but the MICROCOMPUTER itself.

– 5 –


ELECTRICAL MAIN PARTS LIST

REF. NO. PART NO. KANRI

DESCRIPTION REF. NO. PART NO.

KANRI DESCRIPTION NO.

FREE ENGLISH

PDF OPERATING INSTRUCTIONS

PDF USER GUIDE - PDF USER MANUAL

PDF OWNER GUIDE - PDF OWNER MANUAL

PDF REFERENCE GUIDE - PDF REFERENCE MANUAL

PDF INSTRUCTION GUIDE - PDF INSTRUCTION MANUAL