Onkyo C-701A User Manual

SERVICE MANUAL

Compact Disc Playe

C-701A

Ref. No. 3696

092001

MODE

SMPP,SMGT SMDT SMGR

-701

Silver model

230-240V AC, 50Hz 120V AC, 60Hz 220-230V AC, 50/60Hz

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK ON THE SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE THESE COMPONENTS WITH ONKYO PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL. MAKE LEAKAGE-CURRENT OR RESISTANCE MEASUREMENTS TO DETERMINE THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER.

SERVICE PROCEDURES 1

PROTECTION OF EYES FROM LASER BEAM DURING SERVICING

C-701A

This set employs a laser. Therefore, be sure to follow carefully the instructions below when servicing.

WARNING!!

SERVICE WARNING : DO NOT APPROACH THE LASER EXIT WITH THE EYE TOO CLOSELY. IN CASE IT IS NECESSARY TO CONFIRM LASER BEAM EMISSION, BE SURE TO OBSERVE FROM A DISTANCE OF MORE THAN 30cm FROM THE SURFACE OF THE OBJECTIVE LENS ON THE OPTICAL PICKUP BLOCK.

LASER WARNING LABEL

The labels shown below are affixed.

1. Warning label

Laser Diode Properties

Material: GaAS/GaAlAs Wavelength: 780nm Laser output: max. 0.5mW* Emission Duration: continuous *This output is the value measured at a distance about 1.8mm from the objective lens surface on the Optical Pickup Block.

DANGER:

INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCK FAILED OR DEFEATED. AVOID DIRECT EXPOSURE TO BEAM.

CAUTION:

HAZARDOUS LASER AND ELECTROMAGNETIC RADIATION WHEN OPEN AND INTERLOCK DEFEATED.

ATTENTION:

RAYONNEMENT LASER ET ELECTROMAGNETIQUE DANGEREUX SI OUVERT AVEC L'ECLENCHEMENT DE SECURITE ANNULE.

2. Class 1 label

MPP/MGT MDT MGR

1. Replacing the fuse

THIS SYMBOL LOCATED NEAR THE FUSE INDICATES THAT THE FUSE USED IS SLOW OPERATING TYPE FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,REPLACE WITH SAME TYPE FUSE. FOR FUSE

RATING REFER TO THE MARKING ADJACENT TO THE SYMBOL

CE SYMBOLE INDIQUE QUE LE FUSIBLE UTLISE EST

E LENT. POUR UNE PROTECTION PERMANENTE,N'UTILISER QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.

REF. NO. PART NO. DESCRIPTION

F901 252074 2A-SE-EAK

<MPP,MGR,MGT>

2.Safety check out

(Only U.S.A. model)

After correcting the original service problem perform the following safety check before releasing the set to the customer. Connect the insulating-resistance tester between the plug of power supply cord and terminal GND on the back panel. Specifications: More than 10 M ohm at 500V.

SERVICE PROCEDURES 2

1. Removement of tray

1. Remove the top cover

2. Turn the locked screw to the clockwise to release the lock of gear. (Refer to fig-1)

Fig-1

Bottom side

Lock

Unlock

C-701A

5. Press the tray stopper to the arrow mark direction and remove the tray ass'y. (Refer to fig-3)

Fig-3

3. Pull out the tray.

4. Remove the stopper. (Refer to fig-2)

Front

Fig-2

Stopper

Tray

2. Replacement of optical pick-up

The laser diode in the optical pickup block is so sensitive to static electricity, surge current and etc. that the components are liable to be broken down or its reliability remarkably deteriorated. During repair, carefully take the following precautions.

1. Solder the LD short terminal on mechanism.

2. Disconnect the flexible flat cable P101.

3. Replace the optical pickup.

4. Connect the flexible flat cable P101.

5. Unsolder the LD short terminal on mechanism.

Tray stopper

Front

Tray stopper

LD Short Terminal

NOTE

1. Ground for the work-desk. Place a conductive sheet such as a sheet of copper (with impedance lower than 10Mohm) on the work desk and place the set on the conductive sheet so that the chassis can be grounded.

2. Grounding for the test equipments and tools. Test equipments and toolings should be grounded in order that their ground level is the same the ground of the power source.

Pick up short land

3. Grounding for the human body. Be sure to put on a wrist-strap for grounding whose other end is grounded. Be particularly careful when the workers wear synthetic fiber clothes, or air is dry.

4. Select a soldering iron that permits no leakage and have the tip of the iron well-grounded.

5. Do not check the laser diode terminals with the probe of a circuit tester or oscilloscope.

SPECIFICATIONS

C-701A

Signal readout system : Optical non-contact Reading rotation : About 500 - 200 r.p.m.

(constant linear velocity) Linear velocity : 1.2 - 1.4 m/s Error correction system :

Cross Interleave Reed Solomon code D/A converter : 1 bit D/A converter Sampling frequency : 352.8 kHz

(Eight-times oversampling) Number of channels : 2 (stereo) Frequency response : 5 Hz - 20 kHz

Total harmonic distortion : 0.009% (at 1 kHz)

Dynamic range : 92 dB Signal to noise ratio : 80 dB Channel separation : 80 dB (at 1 kHz)

Specifications and external appearance are subject to change without notice because of product improvements.

Wow and Flutter :

Below threshold of measurability Output level : 2 volts r.m.s. Power consumption :

AC 230-240 V, 50 Hz model : 8 watts

AC 220-230V, 50Hz/60Hz : 8 watts

AC 120 V, 60 Hz model : 9 watts Power supply rating :

AC 230-240 V, 50 Hz

AC 220-230V, 50Hz/60Hz

AC 120 V, 60 Hz Dimensions (W x H x D) :

155 x 76 x 283.5 mm <MGR> model

6-1/8" x 3" x 11-3/16"

155 x 76 x 281.5 mm <MPP/MGT> model

6-1/8" x 3" x 11-1/16"

155 x 76 x 277.5 mm <MDT> model

Weight : 2.0 kg, 4.4 lbs.

<MPP>: European model only <MDT>: Taiwanese model only <MGT>: Asian model only <MGR>: Chinese model only

CONFIRM THE FL DISPLAY

1) Press the STANDBY key ON.

2) Press and hold down the STOP button, then press the UP button. After " 010702A" (Microprocessor version) is displayed. All the segments of FL tube light up after 1 seconds.

3) Press the STOP key . ("NO KEY" is displayed)

4) Confirm the each key.

5) Press the STANDBY key to release the test mode.

EXPLODED VIEW

P901

A15

A11

J904

P101

Z01

P701

A25

A24

A27

A210

A216

A215

C-701A

A705

A216

<MGR>only

A104

A102

<MGR>only

A18

A103

A105

A17

A101

A13

F901

T901

A219

A221

P701

A23

A20

A219

A108

<MPP>only

A219

A203

A216

A107

A201

A204

A301

EXPLODED VIEW PARTS LIST-1

REF. NO. PART NO. DESCRIPTION

A1 27100409 Chassis A5 27191158A Holder, PCB A9 838130088 Self tapping screw, 3TTB+8B A11 27190369 Holder, PCB A13 830440069 Self tapping screw, 4TTC+6C(BC) A15 27300750 Bushing, S-RELIEF #2271 A17 27150476 Shield plate (PT) A18 880048 Plastic rivet, P-3055B-8L A20 27111246 Front bracket A23 28141478 Cushion A24 260208 Wire tie A25 27255004 Clip, CS-1U A27 29110083 Tape CROSS-16U 16 x 35mm A101 27122925 Rear panel <MPP>

27122926 Rear panel <MDT> 27122927 Rear panel <MGR>

27122932 Rear panel <MGT> A102 27191143 Holder Outlet <MGR> A103 838430088 Self tapping screw, 3TTB+8B(BC)

A104 838430088 Self tapping screw, 3TTB+8B(BC) <MGR> A105 29362285 Label A107 27262674 Plate, WIN1 A108 27262675 Plate, WIN1<MPP> A201 27212346 Front panel A203 28198939 Facet (S) A204 27268055 Guide (Tray) A210 28148497 Door (Tray) A215 28184825 Cover A216 838930088 Self tapping screw, 3TTB+8B(UN) A219 28141489 Cushion A221 27262671 Plate (Bottom) A301 28191952A Clear plate <MPP>

28191944A Clear plate <MDT,MGR,MGT> A705 29362982 Label (AVIS&CLASS1) <MPP,MGT>

29362939 Label (WARNING) <MDT>

29362991 Label <MGR> F901 252074 or Fuse, 2A-SE-EAK <MPP,MGR,MGT>

252074CC J904 2063A14070 Crimp assy P101 2042161022 Flexible flat cable, NCFC2-161022 P701 2045351022 Flexible flat cable, NCFC5-351022 P703 2047201012

C-701A

<MPP,MDT,MGT>

Flexible flat cable, NCFC7-201012

EXPLODED VIEW PARTS LIST-2

REF. NO. PART NO. DESCRIPTION

P901 253335HIT or Power cord, AS-CEE <MPP,MGT>

253336VOL 253332HIT or Power cord, AS-UC-2 <MDT> 253333VOL 253337HIT or Power cord, AS-CCEE <MGR> 253338VOL

T901 2301553 Power transformer, NPT-1426P <MPP>

2301552 Power transformer, NPT-1426D <MDT> 2301555 Power transformer, NPT-1426G <MGR,MGT>

U1 1H477523-1B Main circuit PC board assy NADG-7323-1B <MGT>

1H477523-1C Main circuit PC board assy NADG-7323-1C <MDT> 1H477523-1D Main circuit PC board assy NADG-7323-1D <MGR> 1H477523-1E Main circuit PC board assy NADG-7323-1E <MPP>

U2 1H477524-1B Microprocessor circuit PC board, NADG-7324-1B <MGT>

1H477524-1C Microprocessor circuit PC board, NADG-7324-1C <MDT> 1H477524-1D Microprocessor circuit PC board, NADG-7324-1D <MGR> 1H477524-1E Microprocessor circuit PC board, NADG-7324-1E <MPP>

U3 1H477525-1B Driver circuit PC board assy, NAAF-7325-1B <MGT>

1H477525-1C Driver circuit PC board assy, NAAF-7325-1C <MDT> 1H477525-1D Driver circuit PC board assy, NAAF-7325-1D <MGR> 1H477525-1E Driver circuit PC board assy, NAAF-7325-1E <MPP>

U4 1H477526-1B Display circuit PC board assy, NADIS-7326-1B <MGT>

1H477526-1C Display circuit PC board assy, NADIS-7326-1C <MDT> 1H477526-1D Display circuit PC board assy, NADIS-7326-1D <MGR> 1H477526-1E Display circuit PC board assy, NADIS-7326-1E <MPP>

U5 1H477527-1B Regulator circuit PC board assy, NAPS-7327-1B <MGT>

1H477527-1C Regulator circuit PC board assy, NAPS-7327-1C <MDT> 1H477527-1D Regulator circuit PC board assy, NAPS-7327-1D <MGR> 1H477527-1E Regulator circuit PC board assy, NAPS-7327-1E <MPP>

U6 1H477528-1B Power transformer PC board assy, NAPS-7328-1B <MGT>

1H477528-1C Power transformer PC board assy, NAPS-7328-1C <MDT> 1H477528-1D Power transformer PC board assy, NAPS-7328-1D <MGR> 1H477528-1E Power transformer PC board assy, NAPS-7328-1E <MPP>

U7 1H477529-1B Open/ Close switch PC board assy, NASW-7329-1B <MGT>

1H477529-1C Open/ Close switch PC board assy, NASW-7329-1C <MDT> 1H477529-1D Open/ Close switch PC board assy, NASW-7329-1D <MGR> 1H477529-1E Open/ Close switch PC board assy, NASW-7329-1E <MPP>

Z01 24800018A

C-701A

CD mechanism assy, NCD-170S

<MPP>: European model only <MDT>: Taiwanese model only <MGT>: Asian model only <MGR>: Chinese model only

NOTE: THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE ONLY WITH PART NUMBER SPECIFIED.

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