Aiwa AD F770 Service Manual

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Aiwa AD F770 Service Manual

Extracted text from Aiwa AD F770 Service Manual (Ocr-read)


Page 1

Al WA®
SERVICE

AlWA-OO133

s/M Code No. 33-006
DATE OF ISSUE 3/1983

MANUAL

MODEL ND.

5...... CASSETTE DECK AD-F77D

TYPE. H,HU,U,E,K,G

. performance and give many years of serivce.

a.c. primary circuit including mains leads.

2. No lllaqibility dull be given to the specification plate, the new
tion labels, the (use labels and others.

3. When, on pattern sides of circuit boards. additional repair-pans
have been made up, the parts shall be firmly glued to circuit
boards or other components, unless the parts can be attached
lirmly.

4. The following matters shall be maintained as they are, when
repairing.
1i Soldering of lead-wire ends

*Care should be taken of the space distance in an ac. pri-
mary circuit as well as soldering.
2) Wiring and holding of lead-wires with wire-clips and binders
3i Materials of lead-wires
* e.g.: For UL models, leadwires to be used shall be ap-
proved or accepted by the UL.
4] Location of all kinds of insulators
5] Setting or voltage selector switch
'Set the Voltage Selector Switch to 240V, 220V, or 120V,
According to your Local Voltage.

5. After repaired, the insulation resistance or leakage current shall

be measured with 500 t 5V D.C and shall be not Ins than -lel.

Measuring Point

Rating : More than IMQ /5l)OV DC

Pin lame)

Chassis (9)

Ac Power oordw)

Follow the instructions carefully, which will allow the user to optimise the products-

1. No scratch and mlltinu shall be made to covered leadmins of an 6. General instructions for mechanism repair

Connecl la Chassis or OulSlde 9 cl Pm Jack


l) The heads, capstan and pinch roller shall be cleaned of good
quality alcohol after repaired, because dirty heads shall cause
distorted sounds while dirty capstan and pinch roller shall
occur wow/flutter and take-up fault.

2) Lubricants been stained the surfaces of transmitting portion

of the belts, idlers, capstan and pinch roller shall be removed,

because slippery and faulty tape travel shall be caused.

When oiling, only one or two drops shall be applied so as

not to run over and be dispersed. Note should be taken of the

metal fitting for the capstan and rotating portions of the
idlers and pinch roller, especially.

E-rings and poly slider washers shall be replaced with new

ones, if once those have been removed. - No re-utilization

due to unreliability.

Regular spare-parts shall always be used for repair, because

using irregular parts and tampering with the products shall

cause deterioration, mulfunction and damage.

3

4

5

Page 12

SPRING APPLICATION POSITION

T-spring. Lid luck T-sprinz. Slide brake

C~spring. Supply reel platlorm vdfr§\

C-sprini, Supply reel platform

é

T-sprinfiyB.T
C-spring.Pinch lever $

é-

W

T-spring,Pinch lever s E'sprinz. Actuating chassis I T-spring. Pinch F

T'spring. FR Idler
T-spring, Pinch plate \a/

t
T-spring. Trigger lever SUb me or

T-spring. PAUSE

T-spring. Cam

12