Onkyo K-505TX Service Manual
  1. Manuals
  2. Brands
  3. Onkyo Manuals
  4. Cassette Player
  5. K-505TX
  6. Service manual

Onkyo K-505TX Service Manual

Stereo casette deck
Hide thumbs Also See for K-505TX:
Table of Contents

Advertisement

Quick Links

See also: Instruction Manual
SERVICE MANUAL
R
STEREO
CASETTE DECK
MODEL K-505TX
STEREO CASSETTE TAPE DECK
CASSETTE LOADING MECHANISM
STANDBY / ON
ALBUM
STANDBY
FADE
Silver models
SUPP,SUPT
SUDT
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBER 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.
DOLBY NR
REV. MODE
REC LEVEL
COUNTER RESET
K - 505X
230V AC,50Hz
120V AC,60Hz
ON THE
K-505TX
3675
Ref. No .
052001

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the K-505TX and is the answer not in the manual?

Questions and answers

Related Manuals for Onkyo K-505TX

Summary of Contents for Onkyo K-505TX

  • Page 1 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 NUMBER APPEAR AS SHOWN IN THIS MANUAL. MAKE LEAKAGE CURRENT OR RESISTANCE...

  • Page 2: Specifications

    K-505TX SPECIFICATIONS Track format Power supply rating 4-tracks, 2-channels AC 230-240 V, 50 Hz AC 120 V, 60 Hz Erasing system AC erase Power consumption 12 W (230-240 V, 50 Hz) Tape speed 14 W (120 V, 60 Hz) 4.8 cm/sec.

  • Page 3: Block Diagram

    K-505TX BLOCK DIAGRAM R115.R116 HEAD DOLBY NR. REC EQ. METER AMP P.B.AMP. DISPLAY P.B. LEVEL Q709 Q102 Q201 Q101 70/120 Q103.Q104 KEY CONTROL LINE BIAS OSC AND HX PRO Q401-Q405 ERASE MICROPROCESSOR L401.L402.L403 HEAD Q701 S717 POWER TRANSFORMER AUTO MECHA AND DRIVER...

  • Page 4: Exploded View

    K-505TX EXPLODED VIEW P902A P101 P703 P705 P702 F901 T901 Z001...

  • Page 5: Parts List

    K-505TX PARTS LIST REF.NO.PART NO. DESCRIPTION 27100334A Chassis 27175323 27175325 838130088 3TTB+8B.Self tapping screw 27190897 KGLS-3S.Holder 27301394 HL-18-0.Clamp 27191045 KGPS-3.5S.Holder 28140020 830440069 4TTC+6C(BC).Self tapping screw 27150407B Shield plate 27300750 S-RELIEF #2271.Bushing cord 27191137 ML Holder 27191138 MR Holder 833130100 3TTP+10P.Self tapping screw...

  • Page 6: Mechanism Exploded View

    K-505TX MECHANISM EXPLODED VIEW Cassette mechanism Loading mechanism METAL F REC PACK R REC MECHANISM EXPLODED VIEW PARTS LIST REF. NO PART NO. DESCRIPTION FF18W-12 Belt F/R FF19H-11 Main belt F567-626 Control circuit PC board FR24S-11 Flywheel ass'y F513-870 Recording/Play head...
  • Page 7 K-505TX PARTS LIST MAIN CIRCUIT PC BOARD(NAAR-7146-1A/1B) CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION C913 374721044 ECQ-V50V-104J C914,C915 354741019 Q701 22241605R3 C916 354741009 TMP87CH14F-3CV2 Q702 22241609R2 Resistors BR93LC46F-WE2 Q707 22240239 R716 5210258 TA7291S N06HR1KBC,Trimming Q905 222780055 R723,R728...
  • Page 8 K-505TX DOLBY CIRCUIT PC BOARD(NAAF-7148-1A/1B) CIRCUIT NO. PART NO. DESCRIPTION CIRCUIT NO. PART NO. DESCRIPTION Capacitors Q201 22241144R3HI C401-C408 371121034 HA12169FB MY92-50V-103J Transistors C409,C410 370131014 APS100V-101J Q203,Q204 2213090 or C411,C412 370131214 DTA114YS or APS100V-121J 2213590 C413 354741019 RN2207 Q205,Q206 2211705 or...

  • Page 9: Adjustment Procedures

    K-505TX ADJUSTMENT PROCEDURES PRECAUTIONS TEST EQUIPMENT/TOOL REQUIRED 1. Before adjustment, clean the following parts Audio Oscillator with an alcohol moistened swab. Digital frequency counter *recording/playback head *erase head Oscilloscope *pinch roller *capstan Attenuator 2. Do not use magnetized screwdriver for AC voltmeter adjustment.

  • Page 10: Adjustment Point

    K-505TX ADJUSTMENT POINT MAIN CIRCUIT PC BOARD D902 D901 ONKYO NCAF-7147 25137147 NCAR-7146 R115 25137146 R116 PLAYBACK AMP. PC BOARD ONKYO NCAF-7148 25137148 DOLBY CIRCUIT PC BOARD NCAF-7149 S717 25137149 RECORDING AMP. PC BOARD PHASE CHART 0 deg. 45 deg.
  • Page 11 K-505TX MAICROPROCESSOR CONNECTION DIAGRAM 1.8K Q201 L402 Q102 L401 11.5V Q401 Q101 Q203.Q204 Q205.Q206 Q709 BJ254GK F.L. TUBE LOAD IN LOAD OUT AIN3 AIN2 AIN1 MECHA SYSTEM BUS AIN0 MECHA 70/120 LINEMUTE OSCOUT 400Hz/12kHz DOLBYRESET 220K RECMUTE OPENSW ROT SENSOR...
  • Page 12 K-505TX MICROPROCESSOR TERMINAL DESCRIPTIONS I/O Terminal Description I/O Terminal Description 1 O GRID2 33 O CAPSTAN Capstan control Grid output pin Active high 2 O GRID1 34 O SOLENOID Solenoid control Active high 3 O SEG1 35 O OPEN Door control.

  • Page 13: Packing View

    K-505TX PACKING VIEW REF.NO. PART NO. DESCRIPTION 29091888 Pad A 29091889 Pad B 29095835 0.515*650*550.Sheet 282321 Staple 29110141 PP Tape 2010376 Pin cord AS 2010375 3.5-MINI PLUG.Cord AS 29100180 T0.05*D240*W250.Bag 29053741 Carton 29362845 EAN Label 29343076 E(K505TX).Instruction manual 29343077 U3FSI(K505TX).Instruction manual <P>...
  • Page 14 Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN Tel: 072-831-8111 Fax: 072-833-5222 ONKYO EUROPE ELECTRONICS GmbH Industriestrasse 20, 82110 Germering, GERMANY Tel: 089-849-320 Fax: 089-849-3265 E-mail: info@onkyo.de ONKYO CHINA LIMITED Units 2102-2107, Metroplaza Tower I, 223 Hing Fong Road, Kwai Chung, HOMEPAGE N.T., HONG KONG Tel: 852-2429-3118 Fax: 852-2428-9039...

Table of Contents

Save PDF