This is the 31 pages manual for Akai AAV 12 DPL Service Manual.
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PRECAUTIONS DURING SERVICING
1. Parts identiﬁed by theA (*)symbo| parts are critical for
safety. Replace them only with pans whose numbers are
In addition to safety. other parts and assemblies are
specified for conformance with such regulations as
those applying to spurious radiation.
These must also be replaced only with speciﬁed replace
Examples:RF converters, tuner units, antenna selection
switches, RF cables. noise—blocking capacitors, noise-
biooking ﬁlters, etc.
3. Use speciﬁed internal wiring. Note especialry:
1) Wires covered with PVC tubing
2) Double insulated wires
3) High voltage leads
4. Use specilied insulating materials for hazardous live
parts, Note especially:
1) Insulating Tape
2) PVC tubing
3) Spacersﬁnsulating bamers)
4) Insulating sheets for tmnsistors
5) Plastic screws for ﬁxing micro switches
When replacing AC primary side components (trans-
formers, power cords, noise blocking capacitors. etc).
wrap ends of wrra securely about the terminals belore
Make sure that Wires do not contact heat generating
parts (heat sinks, oxide metal ﬁlm resustors, fusible resus-
. Check il replaced wires do not contact sharply edged or
Also check areas surrounding repaired parts.
Make sure that toreign objects (screws, solder droplets,
etc.) do not remain insrde the set,
MAKE YOUR CONTRIBUTION TO PROTECT
Used battena With the ISO symbol Ior recy~
cling aswell as small accumulatorsl (recharge- % <9
able battenes). mini- batteries (cells) )and starter
batteries should not be thrown into the garbage can.
Please leave them at an appropriate depot. All other house
hold batteries can be thrown out With the household waste.
SAFETY CHECK AFTER SERVICING
After seNicing, make measurements or leakage-current or
resistance in order to check if exposed parts are accept-
ably insulated from the supply Circuit,
The leakage-current measurement should be done between
accessrble metal parts (such as chassis, ground terminalt
microphone jacks, signal input/output connectors. etc.) and
the earth ground through a resister or 1500 ohms paralleled
with a 0t15uF capacitor, under the was normal working
The Ieakagecurrent should be lass than 0.5mA rrns AC.
The resistance measurement should be done between
accesible exposed metal parts and power cord plug prongs
with the power swrtch “ON"ﬁf included). The resistance
should be more than 2.2Mohmst
SYMBOLS FOR PRIMARY DESTINATION
Alphabet indicates the destination or the units
as listed below.
80W~80W (I'HD 0.1%)
Surround sow—50w (THU (15%)
Rear , 12.5W'12.5W (THD 0.8%)
Center .. 50w (THD 0.5%)
Total Harmonic Distortion
Bypass ..... 0.1 %
Rear . 0.8%
Center 0.5 “/a
Frequency Response 10Hz-60KHleypass)
S/N Ratio ...................... 85d8
Phono ......... 3mV
CD, TUNER. TAPE/DAT, VIDEO). 2 ....... . 200rnV
VIDEOI. 2 levp
TREBLE , 1 0GB
Power Source ....... . AC 230V, 50Hz
Dimension ...... 420(w) x 150(H) >< 350(D)mm
Power Consumption ..... 150W