Jvc RCQW 35 BK Service Manual

Page 1

RCQW35BKB/E/EN/G

RC-QW353K B/E/EN/G

I Self diagnosis function
This model has a convenient self-diagnosis function CD section.

@DEAE

DIGITAL AUDIO

B
E
EN .. Northem Europe
G ............ Germany

Contents

I Safety Precautions .. . 2 6. Block Diagram...

I Instructions ............. . 5 7. Standard Schematic Diagrams
1. Location of Main Paris . 15 8. Location of RC. Board Paris and Parts Us!......... 46
2. Removal of Main Parts . 16 9. Exploded View of Enclosure Assembly ..... 56
3. Troubleshooting ................. 10. Exploded Wew of Mechanism Assembly .. 59
4. Main Adjustment 11. illustration of Packing and Parts List .................... 63
5. Wiring Connections

No. 1 972

COPYRIGHT © 1996 VICTOR COMPANY OF JAPAN.LTD.

May 1996

Page 2

RC-OW353Ka/Ereua

I Safety Precautios

f. The design this product contains special hardware and many circuits and components specialty for safety purposes. For continued
protection. no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement pans
must be identical to those used in the original circuits. Service should be performed by qualified personnel only.

2. Alterations of the design or circuitry of the product should not be made. Any design alterations of the product should not be made.
Any design alterations or additions will void the manufacture's warranty and will further relieve the manufacture of responsibility for
personal injury or property damage resulting therefrom.

3. Many electrical and mechanical pans in the product have special safety - related characteristics. These characteristics are often
not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement
components rated for higher voltage. wattage. etc. Replacement parts which have these special safety characteristics are identified
in the pans list of service manual. Electrical components having such features are identified by shading(-) and( A )on the
schematic diagram and by ( A ) on the parts list in the service manual. The use of a substitute replacement which does not have
the same safety characteristics as the recommended replacement part shown in the parts list of service manual may create shock,
fire. or other hazards.

4. The leads in the products are routed and dressed with ties. clamps . tubings. barriers and the like to be separated from live parts.
high temperature parts. moving parts and or sharp edges for the prevention of electric shock and fire hazard. When service is
required. the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal.
after reassembling.

5. Leakage current check (Electrical shock hazard testing)

After re - assembling the product. always perform an isolation check on the exposed metal parts of the product (antenna

terminals. knobs. metal cabinet. screw heads. headphone jack. control shafts, etc.) to be sure the product is safe to operate without

danger of electrical shock. Do not use a line isolation transformer during this check.

- Plug the AC line cord directly into the AC outlet. using aLeakage current tester, measure the leakage current from each exposed
metal part of the cabinet, particulary any exposed metal part having a return path to the chassis. to a known good earth ground.

Any leakage current must not exposeed 0.5mA AC(r.rn.s.)
AC VOLTMETER
- Alternate check method m (Having 1000 ohms/volt,

Plug the Ac line cord directly into the AC outlet. Use an AC °""°'°°"""""V"
voltmeter having 1.000 ohms per volt or more sensitivity in the 3
following manner. Connect a 1,500 ohms 10W resistor paralleled by 0'15 "F fc TYPE
a 0.15 [1 F AC type capacitor between an exposed metal part and Place an; probe

w on each on
a known good eanh ground. Measure the AC volmge across the 1500 n 10 W mud Part.

resistor with the AC voltmeter. Move the resistor connection to each
exposed metal part. particularly any exposed metal part having a return path to the chassis, and measure the AC voltage across
the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Any voltage measured must not exceed 0.75V

AC(r.m.s.).This corresponds to 0.5mA AC(r.m.s.).

0 Warning (UK only)

f. This equipment has been designed and manufactured to meet international safety standards.

2. It is the legal responsibility of the repairerto ensure that these safety standards are rnaintaintained.
3. Repair: must be made in accordance with the relevant safety standards.

4. It is essential that safety critical components are replaced by approved parts.

5. If mains voltage solodor is provided. check setting for local voltage.

2 (No. 1972)