SERVICE MANUAL DATA COMPACT DISC STEREO SYSTEM BASIC TAPE MECHANISM : ZZM-3 PR1NM/PR1NF BASIC CD MECHANISM : BZG-5 ZD3NM/YKZD3NF NSX-AJ310 NSX-SZ310 NSX-SZ315 NSX-SZ510 U K,EZ,LH EZ LH S/M Code No. 09-012-442-0R1 REVISION • This Service Manual is the "Revision Publishing" and replaces "Simple Manual" (S/M Code No. 09-011-442-0T1). • If requiring information about the CD mechanism, see Service Manual of BZG-5, (S/M Code No. 09-00C-353-3N2). NSX-AJ310 TYPE : U RC-ZAS02 SYSTEM MAIN SPEAKERS REMOTE CONTROLLER TAPE MECHANISM CD MECHANISM NSX-SZ310 TYPE : K,EZ,LH NSX-SZ315 TYPE : EZ BZG-5 YKZD3NF SX-NAJ312 ZZM-3 PR1NM ZZM-3 PR1NF ZZM-3 PR1NF NSX-SZ510 TYPE : LH ZZM-3 PR1NF BZG-5 ZD3NM BZG-5 YKZD3NF BZG-5 YKZD3NF CD CASSEIVER CX-NAJ310 CX-NSZ310 CX-NSZ315 CX-NSZ510 SX-NSZ312 SX-NSZ312 SX-NSZ702
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Inputs VIDEO / AUX : 500 mVOutputs SPEAKERS : 6 ohms or more
PHONES : 32 ohms or more
<Cassette deck section>Track format 4 tracks, 2 channels stereoFrequency response 50 Hz - 15 kHzRecording system AC biasHeads Deck 1 : Playback head x 1
Deck 2 : Recording / Playback x 1, erase head x 1
<Compact disc player section>Laser Semiconductor laser (λ = 780 nm)D-A converter 1 bit dualSignal-to-noise ratio 85 dB (1 kHz, 0 dB)Harmonic distortion 0.05 % (1 kHz, 0 dB)
<General>CX-NAJ310Power requirements 120 V AC, 60 HzPower consumption 70 WPower consumption With ECO mode on : 0.6 W in standby mode With ECO mode off : 20 WDimensions of main unit 260 x 324 x 339 mm (W x H x D) (101/4 x 127/8 x 133/8 in.)Weight 6.3 kg (13 lbs 14 oz)
SPECIFICATIONS <U,LH>
CX-NSZ310Power requirements 120 V/220 - 230 V/240 V AC,
(Switchable), 50 Hz/60 HzPower consumption 90 WPower consumption With ECO mode on : 0.6 W in standby mode With ECO mode off : 19 WDimensions of main unit 260 x 324 x 339 mm (W x H x D)Weight 6.8 kg
CX-NSZ510Power requirements 120 V/220 - 230 V/240 V AC,
(Switchable), 50 Hz/60 HzPower consumption 105 WPower consumption With ECO mode on : 0.6 W in standby mode With ECO mode off : 20 WDimensions of main unit 260 x 324 x 339 mm (W x H x D)Weight 7.2 kg
<Speaker system SX-NAJ312 (for NSX-AJ310)>Speaker system 3 way, bass reflex (magnetic shielded)Speaker units Woofer : 140 mm (55/8 in.) cone
Tweeter : 60 mm (23/8 in.) coneSuper tweeter : 20 mm (13/16 in.) ceramic
Impedance 6 ohmsDimensions (W x H x D) 220 x 324 x 225 mm
(83/4 x 127/8 x 87/8 in.)Weight 4.3 kg (9 lbs 8 oz)
<Speaker system SX-NSZ312 (for NSX-SZ310)>Speaker system 3 way, bass reflex (magnetic shielded)Speaker units Woofer : 140 mm cone
Tweeter : 60 mm coneSuper tweeter : 20 mm ceramic
Impedance 6 ohmsDimensions (W x H x D) 220 x 324 x 225 mmWeight 4.3 kg
<Speaker system SX-NSZ702 (for NSX-SZ510)>Speaker system 2 way, bass reflex (magnetic shielded)Speaker units Woofer : 160 mm cone
Tweeter : 60 mm coneImpedance 6 ohmsDimensions (W x H x D) 230 x 324 x 223 mmWeight 4.6 kg
• Design and specifications are subject to change without notice.
• The word "BBE"and the "BBE symbol" are trademarks of BBE
Sound, Inc.
Under license from BBE Sound,Inc.
– 3 –
<FM tuner section>Tuning range 87.5 MHz to 108 MHzUsable sensitivity (IHF) 16.8 dBfAntenna terminals 75 ohms (unbalanced)
<MW tuner section>Tuning range 530 kHz to 1710 kHz (10 kHz step)
Inputs VIDEO / AUX : 500 mVOutputs SPEAKERS : 6 ohms or more
PHONES : 32 ohms or more
<Cassette deck section>Track format 4 tracks, 2 channels stereoFrequency response 50 Hz - 15 kHzRecording system AC biasHeads Deck 1 : Playback head x 1
Deck 2 : Recording / Playback x 1, erase head x 1
<Compact disc player section>Laser Semiconductor laser (λ = 780 nm)D-A converter 1 bit dualSignal-to-noise ratio 85 dB (1 kHz, 0 dB)Harmonic distortion 0.05 % (1 kHz, 0 dB)
SPECIFICATIONS <EZ,K>
<General>Power requirements 230 V AC, 50 HzPower consumption 75 WPower consumption With ECO mode on : 0.6 W in standby mode With ECO mode off : 17 WDimensions of main unit 260 x 324 x 339 mm (W x H x D)Weight 5.8 kg
<Speaker system SX-NSZ312>Speaker systm 3 way, bass reflex (magnetic shielded)Speaker unites Woofer : 140 mm cone
Tweeter : 60 mm coneSuper tweeter : 20 mm ceramic
Impedance 6 ohmsDimensions (W x H x D) 220 x 324 x 225 mmWeight 4.3 kg
• Design and specifications are subject to change without notice.
• The word "BBE"and the "BBE symbol" are trademarks of BBE
This set employs laser. Therefore, be sure to follow carefullythe instructions below when servicing.
WARNING!!WHEN SERVICING, DO NOT APPROACH THE LASEREXIT WITH THE EYE TOO CLOSELY. IN CASE IT ISNECESSARY TO CONFIRM LASER BEAM EMISSION.BE SURE TO OBSERVE FROM A DISTANCE OF MORETHAN 30cm FROM THE SURFACE OF THE OBJEC-TIVE LENS ON THE OPTICAL PICK-UP BLOCK.
s Caution: Invisible laser radiation whenopen and interlocks defeated avoidexposure to beam.
s Advarsel: Usynlig laserståling ved åbning,når sikkerhedsafbrydere er ude af funktion.Undgå udsættelse for stråling.
VAROITUS!Laiteen Käyttäminen muulla kuin tässä käyttöohjeessamainitulla tavalla saataa altistaa käyt-täjänturvall isuusluokan 1 ylittävälle näkymättömällelasersäteilylle.
VARNING!Om apparaten används på annat sätt än vad somspecificeras i denna bruksanvising, kan användarenutsättas för osynling laserstrålning, som överskridergränsen för laserklass 1.
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING
CAUTIONUse of controls or adjustments or performance of proce-dures other than those specified herin may result inhazardous radiation exposure.
ATTENTIONL’utillisation de commandes, réglages ou procéduresautres que ceux spécifiés peut entraîner une dangereuseexposition aux radiations.
ADVARSELUsynlig laserståling ved åbning, når sikkerhedsafbrydereerude af funktion. Undgå udsættelse for stråling.
This Compact Disc player is classified as a CLASS 1LASER product.The CLASS 1 LASER PRODUCT label is located on therear exterior.
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 inright figure.
PICK-UP Assy PWB
Solder
– 5 –
NOTE ON BEFORE STARTING REPAIR
Charging voltage (V) Discharging Rated power (W) Parts number
(C101, 102) resistor (Ω)
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 thereference 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 confirmingthat 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 HOLDterminal before exchange.When the MICROCOMPUTER is not defective, the HOLD terminal can also go “L” when the POWER AMPLIFIER has anyabnormalities 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
11111 Turn on the AC main power.22222 Confirm that the main power is turned on and the HOLD terminal of the MICROCOMPUTER keeps the “H” level or not.33333 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.
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 acrossthe electrolytic capacitors (C101, 102) even though AC power cord is removed. If repair is attempted in this condition, secondary defectcan occur.In order to prevent the secondary trouble, perform the following measures before starting repair work.
Discharge procedure
11111 Remove the AC power cord.22222 Connect a discharging resistor at an end of lead wire that
has clips at both ends. Connect the other end of the leadwire to metal chassis.
33333 Contact the other end of the discharging resistor to thepositive (+) side (+VH) of C101. (For two seconds)
44444 Contact the same end of the discharging resistor as step33333 to the negative (-) side (-VH) of C102 in the same way.(For two seconds)
55555 Check that voltage across C101 and C102 has decreasedto 1 V or less using a multimeter or an oscilloscope.
Select a discharging resistor referring to the following table. Fig-1
MAIN C.B
D101
C101 C102
2 2
3 4
– 6 –
In such a case, check also if the POWER AMPLIFIER circuit or power supply circuit has any abnormalities or not.
2-2. Regarding resetThere are cases that the machine does not work correctly because the MICROCOMPUTER is not reset even though the AC powercord 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 toexchange the MICROCOMPUTER. In such a case, perform the forced-reset by the following procedure and check good or nogood of the MICROCOMPUTER.11111 Remove the AC power cord.
22222 Short both ends of the electrolytic capacitor C113 that is connected to VDD of the MICROCOMPUTER with tweezers.33333 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 dependingon 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 theMICROCOMPUTER after surely confirming that the trouble is not caused by poor soldering but the MICROCOMPUTER itself.
C405 87-012-286-080 CAP, U 0.01-25 C406 87-012-286-080 CAP, U 0.01-25 C407 87-012-286-080 CAP, U 0.01-25 C408 87-012-286-080 CAP, U 0.01-25 C409 87-012-278-080 C-CAP,U 2200P-50 B
C782 87-012-286-080 CAP, U 0.01-25 C783 87-012-286-080 CAP, U 0.01-25 C784 87-012-286-080 CAP, U 0.01-25 C785 87-012-286-080 CAP, U 0.01-25 C786 87-012-286-080 CAP, U 0.01-25
C907 87-012-286-080 CAP, U 0.01-25<LH,5LH,U> C908 87-A10-915-080 C-CAP,U 1000P-25<LH,5LH,U> C909 87-012-286-080 CAP, U 0.01-25<LH,5LH,U> C910 87-012-174-080 CAP CHIP U 12P-50<LH,5LH,U> C911 87-012-170-080 C-CAP,U 8P-50<LH,5LH,U>
C912 87-012-195-080 C-CAP,U 100P-50<LH,5LH,U> C913 87-012-286-080 CAP, U 0.01-25<LH,5LH,U> C914 87-012-166-080 C-CAP,U 4P-50<LH,5LH,U> C915 87-012-174-080 CAP CHIP CERA SS 12P<LH,5LH,U> C916 87-012-180-080 C-CAP,U 22P-50<LH,5LH,U>
– 9 –
DESCRIPTIONREF. NO. PART NO. DESCRIPTIONREF. NO. PART NO.KANRINO.
KANRINO.
C917 87-012-186-080 C-CAP,U 39P-50<LH,5LH,U> C918 87-A10-039-080 C-CAP,U 470P-50<LH,5LH,U> C921 87-012-195-080 C-CAP,U 100P-50<LH,5LH,U> C922 87-012-174-080 CAP CHIP CERA SS 12P<LH,5LH,U> C940 87-012-286-080 CAP, U 0.01-25<K,EZ,5EZ>
C942 87-012-165-080 CAP 3P<K,EZ,5EZ> C947 87-012-286-080 CAP, U 0.01-25<K,EZ,5EZ> C948 87-A10-039-080 C-CAP,U 470P-50<K,EZ,5EZ> C952 87-012-286-080 CAP, U 0.01-25<K,EZ,5EZ> C957 87-012-174-080 CAP CHIP CERA SS 12P<K,EZ,5EZ>
• Test point : TP8(Lch), TP9(Rch)• Adjustment location : SFR1
Method : Play back the test tape and adjust SFR1 so that thefrequency counter reads 3000 Hz ± 5 Hz (FWD) andFWD speed ± 45 Hz (REV) with respect to forwardspeed.
2. Head Azimuth Adjustment (DECK 1, DECK 2)Settings : • Test tape : TTA–330
• Test point : TP8(Lch), TP9(Rch)• Adjustment location : Head azimuth
adjustment screwMethod : Play back (FWD) the 8 kHz signal of the test tape and
adjust screw so that the output becomes maximum.Next, perform on REV PLAY mode.
3. PB Frequency Response Check (DECK 1, DECK 2)Settings : • Test tape : TTA–330
• Test point : TP8(Lch), TP9(Rch)Method : Play back the 315 Hz and 8 kHz signals of the test tape
and check that the output ratio of the 8 kHz signal withrespect to that of the 315 Hz signal is 0 dB ± 5 dB.
• Test point : TP8(Lch), TP9(Rch)Method : Play back the test tape and check that the output level
of the test point is 110 mV ± 3 dB.
5. REC/PB Frequency Response Adjustment (DECK 2)Settings : • Test tape : TTA–602
• Test point : TP8(Lch), TP9(Rch)• Input signal : 1 kHz / 8 kHz (LINE IN)
(-20VU)• Adjustment location : SFR451 (Lch)
SFR452 (Rch)Method : Apply a 1 kHz signal and REC mode. Then adjust
OSC attenuator so that the output level at the TP8,TP9 becomes 0 dB (10 mV). Record and play back the1 kHz and 8 kHz signals and adjust SFRs so that the outputof the 8 kHz signals becomes 0 dB ± 1 dB with respect tothat of the 1 kHz signal.
• Test point : TP8(Lch), TP9(Rch)• Input signal : 1 kHz (LINE IN) (0VU)
Method : Apply a 1 kHz signal and REC mode. Then adjustOSC attenuator so that the output level at TP8, TP9becomes 0 dB (100 mV). Record and play back the1 kHz signals and check that the output is -1 dB ± 3.5 dB.
< FRONT SECTION >
7. µ-CON OSC AdjustmentSettings : • Test point : TP10 (K-SCAN)
TP11 (GND)• Adjustment location : L951
Method : Insert AC plug while pressing POWER key and TUNERBAND key. Connect a frequency counter across TP10and TP11. Then adjust L951 so that the frequency at thetest point is 112.88 Hz ± 0.11 Hz.
< DECK SECTION >
– 35 –
CD TEST MODE
1. How to Start the CD Test Mode
While pressing the FUNCTION button, insert the AC plug to the power outlet.When the test mode is started, the message [CD TEST] is displayed.
2. How to Exit the CD Test Mode
Press the POWER button or disconnect the AC plug.* When any key other than PLAY is pressed during play mode, the machine exits the test mode.
3. Function Descriptions and Application of the CD Test Mode
*1: The driver IC heats up and the protection circuit starts working when the focus search is continued for 10 minutes or longer.There can be a case that operations cannot be performed correctly.In such a case, turn off the main power. After cooling down the machine, restart the machine.
*2: Be careful not to damage the gear because the sled motor rotates while the FF or RWD button is being pressed even if thepick-up is located in the innermost track or the outermost track.
38 8B-NFY-018-010 KEY,RDS<315EZ> A 87-067-703-010 TAPPING SCREW, BVT2+3-10 B 87-NF4-224-010 S-SCREW,IT3B+3-8 CU C 87-078-200-010 S-SCREW,ITC+4-8 R D 87-067-689-010 TAPPING SCREW, BVTT+3-8
E 87-723-096-410 QT2+3-10W/O SLOT BL F 87-721-097-410 QT2+3-12 GLD G 87-067-641-010 UTT2+3-8(W/O SLOT)BL H 87-721-096-410 QT2+3-10 GLD I 87-067-584-010 BVT2+3-6 W/O SLOT<EXCEPT 510LH>
!
Basic color symbol Color Basic color symbol Color Basic color symbol ColorB Black C Cream D OrangeG Green H Gray L BlueLT Transparent Blue N Gold P PinkR Red S Silver ST Titan SilverT Brown V Violet W White
WT Transparent White Y Yellow YT Transparent YellowLM Metallic Blue LL Light Blue GT Transparent GreenLD Dark Blue DT Transparent Orange GM Metallic GreenYM Metallic Yellow DM Metallic Orange PT Transparent PinkLA Aqua Blue GL Light Green HT Transparent Gray
A 84-ZM2-242-010 S-SCREW,AZ1-2-6.4 B 8Z-ZM2-220-110 V+2.6 ZZM-2
– 40 –
GENERAL SPEAKER DISASSEMBLY INSTRUCTIONS (FOR REFERENCE)
Insert a flat-bladed screwdriver into the position indicated by thearrows and remove the panel. Remove the screws of each speakerunit and then remove the speaker units.
Type.1
Type.3
Type.2
Type.4
Fig-1 Fig-2
Fig-3
How to Attach the PANEL, FR
Attach the PANEL, FR to the PANEL, SPKR. Tap the fourcorners of the PANEL, FR with the plastic hammer to fit thePANEL, FR into the PANEL, SPKR completely.
1 2 3
Insert a flat-bladed screwdriver into the position indicated by thearrows and remove the panel. Turn the speaker unit to counter-clockwise direction while inserting a flat-bladed screwdriver intoone of the hollows around speaker unit, and then remove the speakerunit. After replacing the speaker unit, install it turning to clockwisedirection until "click" sound comes out.
Remove the grill frame and four pieces of rubber caps by pullingout with a flat-bladed screwdriver. Remove the screws from holewhere installed rubber caps. Insert a flat-bladed screwdriver intothe position indicated by the arrows and remove the panel. Re-move the screws of each speaker unit and then remove the speakerunits.
TOOLS
1 Plastic head hammer2 (() flat head screwdriver3 Cut chisel
How to Remove the PANEL, FR
1. Insert the (() flat head screwdriver tip into the gapbetween the PANEL, FR and the PANEL, SPKR. Tap thehead of the (() flat head screwdriver with the plastichammer head, and create the clearance as shown in Fig-1.
2. Insert the cut chisel in the clearance, and tap the head ofthe cut chisel with plastic hammer as shown in Fig-2, toremove the PANEL, FR.
3. Place the speaker horizontally. Tap head of the cut chiselwith plastic hammer as shown in Fig-3, and remove thePANEL, FR completely.
– 41 –
DESCRIPTIONREF. NO. KANRINO.
PART NO.
SPEAKER PARTS LIST <SX-NAJ312 (YUS1N, YUSN) / SX-NSZ312 (YLSC, YSC)>