POWER / AMP ...................................................................................................................................11
CD ...................................................................................................................................................12
TO PREVENT ELECTRIC SHOCK, DO NOT USE THIS POLARIZED AC
PLUG WITH AN EXTENSION CORD, RECEPTACLE OR OTHER OUTLET
UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE
EXPOSURE.
THIS UNIT EMPLOYS A LASER. ONLY QUALIFIED SERVICE PERSONNEL
SHOULD REMOVE THE COVER OR ATTEMPT TO SERVICE THIS DEVICE
DUE TO POSSIBLE EYE INJURY.
CAUTION :
OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS
RADIATION EXPOSURE.
CAUTION :
PLUG TO WIDE SLOT, FULLY INSERT.
ATTENTION :
LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU'AU FOND.
: TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE
CAUTION
RISK OF ELECTRIC SHOCKS
DO NOT OPEN
TO REDUCE THE RISK IF ELECTRIC SHOCK, DO NOT
REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS
INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE
PRESENCE OF UNINSULTED "DANGEROUS VOLTAGE"
WITHIN THE PRODUCT'S ENCLOSURE THAT MAY BE
SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF
ELECTRIC SHOCK TO PERSONS.
THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE
PRESENCE OF IMPORTANT OPERATING AND MAINTENANCE
(SERVICING) INSTRUCTIONS IN THE LITERATURE
ACCOMPANYING THE APPLIANCE.
CAUTION
LASER SAFETY
USE OF ANY CONTROLS, ADJUSTMENTS, OR PROCEDURES
TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF
POUR EVITER LES CHOCS ELECTRIQUES, INTRODUIRE
Important Safety Instructions
- All the safety and operating instructions should be read before
the appliance is operated.
- The safety and operating instructions should be retained for
future reference.
- All warnings on the appliance and in the operating instructions
should be adhered to.
- All operating and use instructions should be followed.
1. Water and Moisture - The appliance should not be
water - for example, near a bathtub, washbowl, kitchen sink,
used near
laundry tub, in a wet basement, or near a swimming pool,
and the like.
PORTABLE CART
Figure 2
ceiling only as recommended by the manufacturer.
5. Ventilation - The appliance should be situated so
location or position does not interfere with
ventilation. For example, the appliance
on a bed, sofa, rug, or similar surface that may block the
ventilation openings; or, placed in a built-in installation, such
as a bookcase or cabinet that may impede the flow
through the ventilation openings.
6. Heat - The appliance should be situated away from
sources such as radiators, heat registers,
appliances (including amplifiers) that
7. Power Sources - The appliance should be
power supply only of the type described in the operating
instructions or as marked on the appliance.
8. Grounding or Polarization - The precautions that
taken so that the grounding or polarization means of an
appliance is not defeated.
9. Power - Cord Protection - Power-supply cords
routed so that they are not likely to be
by items placed upon or against them, paying particular
attention to cords at plugs, convenience receptacles, and the
point where they exit from the appliance.
10.Protective Attachment Plug - The appliance is equipped with
an attachment plug having overload
safety feature. See Instruction Manual for replacement or
resetting of protective device. If replacement of the plug is
required, be sure the service technician has used a
replacement plug specified by the manufacturer that has the
same overload protection as the original plug.
11.Cleaning - The appliance should be cleaned only as
recommended by the manufacturer.
12.Power Lines - An outdoor antenna should be located
from power lines.
2. Carts and Stands - The appliance
should be used only with a cart or
stand that is recommended by th
manufacturer.
3. An appliance and cart combination
should be moved with care. Quick
stops, excessive force, and uneven
surfaces may cause the appliance
and cart combination to overturn.
4. Wall or Ceiling Mounting - The appli-
ance should be mounted to a wall or
that its
its proper
should not be situated
stoves, or other
produce heat.
connected to a
should be
should be
walked on or pinched
protection. This is a
of air
heat
away
2
Page 4
SAFETY PRECAUTIONS
13.Outdoor Antenna Grounding - If an outside antenna
connected to the receiver be sure the antenna
system is
grounded so as to provide some protection against voltage
surges and built-up static charges. Article 810 of the National
Electrical Code, ANSI/NFPA 70, provides information with
regard to proper grounding of the mast and supporting
structure, grounding of the lead-in wire to an antenna-dis
charge unit, size of grounding conductors,location of antennadischarge unit, connection to grounding electrodes and
requirements for the grounding electrode. See Figure 1.
EXAMPLE OF ANTENNA
GROUNDING
GROUND CLAMP
ELECTRIC
SERVICE
EQUIPMENT
NEC - NATIONAL ELECTRICAL CODE
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250 PART H)
ANTENNA LEAD
IN WIRE
ANTENNA DISCHARGE UNIT
(NEC SECTION 810-20)
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
GROUND CLAMPS
14.Non-use Periods - The power cord of the appliance should be
unplugged from the outlet when left
unused for a long period
of time.
is
15.Object and Liquid Entry - Care should be taken so
that objects
do not fall and liquids are not spilled into the enclosure through
openings.
16.Damage Requiring Service - The appliance should
be
serviced by qualified service personnel when:
a) The power-supply cord or the plug has been
b) Objects have fallen, or liquid has been spilled
damaged; or
into the
appliance; or
c) The appliance has been exposed to rain; or
d) The appliance does not appear to operate
normally or
exhibits a marked change in performance; or
e) The appliance has been dropped, or the
enclosure
damaged.
17.Servicing - The user should not attempt to service the
appliance beyond that described in the operating instructions.
All other servicing should be referred to qualified service
personnel.
3
Page 5
ADJUSTMENTS
1. TUNER SECTION
TEST EQUIPMENT
FM RF SSG
75 ohm Coaxal
FM Antenna
Terminal(75 ohm)
1. Signal Generator with a frequency range of FM broadcast.
2. Oscilloscope with a side amplifier of approximately 100 KHz.
Unless other specified set being switched FM mode, adjust generator's frequency to center of the FM band where no FM broadcast exists
Otherwise adjustment of FM usable sensitivity, frequency range for FM band are not needed, but confirm these data are satisfied with specification.
CAUTION : When realigning the FM receiving frequency the highest end of the frequency range should not be more than 108 MHz and the
lowest end of the frequency range should not be less than 87.5 MHz, in order to comply with FTZ regulation in West Germany.
2. CD SECTION
Note:
1. Use the oscilloscope with more than 10M
2. Clean an object lens by an applicator with natural detergent when the signal level is lower than specified value
with the following checks.
RF LEVEL CHECK
1. Connect oscilloscope to test point TP502 and IC502
Pin66 on CD PCB.
2. Press power switch on.
3. Put test disc(TCD-781) in and press play button then
pause button.
4. Confirm that oscilloscope waveform is clear. Clear
RF signal waveform means that the shape"#"can be
clearly distinguished at the center of waveform.
5. Adjust RV501 to get a clear waveform and maximum
amplitude.
Ω
impedance.
RF Signal Waveform
VOLT/DIV : 200mV
TIME/DIV : 50ns
Level : 1.2+0.3Vp-p
4
Page 6
E-F BALANCE ADJUSTMENT
Output Level
1. Connect oscilloscope to test point TP502 and TP503
on CD PCB.
2. Press power switch on.
3. Put test disc(TCD-781) in and press play button then
pause button.
4. Pressing Fast Forward button, adjust RV502 to get
that the oscilloscope waveform is symmetrical on the
bottom in relation to 0V, and check this level.
* Design and specifications may be subject to change without notice.
35HEAT SINK P9CD4404200AL T=2.01
36COVER SIDE R9CD0410000MIPS1
37COVER BACK 9CD0409807MIPS1
S1SCREW TAPTITE 7173261011TT2 BIN 2.6X10 MFZN19
S2SCREW TAPTITE 7173300611TT2 BIN 3X62
S3SCREW TAPTITE 7173301011TT2 BIN 3X10 MFZN18
S4SCREW TAPTITE 7173301012TT2 BIN 3X10 BK18
S5SCREW TAPTITE 7173301212TT2 BIN 3X12 BK 5
S6SCREW TAPTITE 7173400611TT2 BIN 4X6 6
S7 WASHER SCREW9CD3102400 TT2 BIN 3X10+D145
P1 PCB CD9CD6574800197 X 123.5 X 1.6T1
P2 PCB FRONT 9CD6577400247 X 139 X 1.6T1
P3 PCB MAIN 9CD6577600319 X 197 X 1.6T1
P4 PCB POWER 9CD6577900197 X 115 X 1.6T1
P5 PCB TAPE9CD6577200107 X 163 X 1.6T1
P6 PCB OPTICAL JACK9CD657780029 X 21.5 X 1.6T1
POWER CONTROL
* AMI-921DP / 921DPR * AMI-921DP / 921DPR
20
Page 22
ELECTRICAL PARTS LIST
1. 921DPR _ 2 Band
Parts NameParts CodeQ'tyDescriptionLocation
AM RF UNIT5LR00008261RBW07VB-K5020L101
C CERACCXB1H271K150V B 270PF K (TAPPING)CC208
CC002 CC004 CC102 CC201 CC205
C CERACCXF1H103Z25 50V F 0.01MF Z (TAPPING)
C CERACCXF1H104Z37 50V F 0.1MF Z
C CERACCXF1H223Z850V F 0.022MF Z (TAPPING)
C CERACCXF1H473Z850V F 0.047MF Z (TAPPING)
C CERACCZB1E101K125V B 100PF K (AXIAL)CC204
C CERACCZB1E102K10 25V B 1000PF K (AXIAL)
C CERACCZB1E121K225V B 120PF K (AXIAL)CC613 CC614
C CERACCZB1E151K225V B 150PF K (AXIAL)CC531 CC532
C CERACCZB1E152K125V B 1500PF K (AXIAL)CC523
C CERACCZB1E221K525V B 220PF K (AXIAL)CC724 CC802 CC806 CC810 CC814
C CERACCZB1E222K225V B 2200PF K (AXIAL)CC510 CC516
C CERACCZB1E391K125V B 390PF K (AXIAL)CC508
C CERACCZB1E472K425V B 4700PF K (AXIAL)CC213 CC518 CC542 CC543
C CERACCZB1E681K225V B 680PF K (AXIAL)CC302 CC303
C CERACCZB1E682K125V B 6800PF K (AXIAL)CC514
C CERACCZB1E821K825V B 820PF K AXIAL
C CERACCZB1H221K150V B 220PF KCC610
C CERACCZF1H104Z150V HIKF 0.1MF ZCC616
C CERACXCH1H101J150V CH 100PF J (TAPPING) CC563
C CERACZCH1E101J17 CH 25V 100PF J AXL 52MM
C CERACZCH1E120J1CH 25V 12PF JCC104
C CERACZCH1E150J1CH 25V 15PF J (AXIAL)CC714
C CERACZCH1E180J1CH 25V 18PF J (AXIAL)CC715
C CERACZCH1E309K1CH 25V 3PF K AXIALCC519
C CERACZCH1E330J5CH 25V 33PF J AXIAL 52MM CC255 CC256 CC716 CC717 CC719
C CERACZCH1E331J1
C CERACZCH1E470J7CH 25V 47PF J AX
C CERACZCH1E809K1CH 25V 8PF K AXL 52MMCC517
C CERACZCH1E820J1CH 25V 82PF J AXL 52MMCC276
C CERACZCH1H270J2CH 50V 27PF J AXL 52MMCC524 CC525
R CARBON FILM RD-AZ105J-51/6 1M OHM JR505 R508 R559 R560 R641
R CARBON FILM RD-AZ106J-11/6 10M OHM JR761
R CARBON FILM RD-AZ109J-21/6 1 OHM JR906 R907
R CARBON FILM RD-AZ121J-11/6 120 OHM JR551
R CARBON FILM RD-AZ124J-11/6 120K OHM JR513
R CARBON FILM RD-AZ151J-31/6 150 OHM JR302 R313 R323
R CARBON FILM RD-AZ152J-71/6 1.5K OHM J
R CARBON FILM RD-AZ153J-13 1/6 15K OHM J
R CARBON FILM RD-AZ154J-21/6 150K OHM JR503 R525
R CARBON FILM RD-AZ181J-31/6 180 OHM JR303 R314 R324
R CARBON FILM RD-AZ182J-31/6 1.8K OHM JR413 R414 R734
R CARBON FILM RD-AZ183J-41/6 18K OHM JR201 R203 R621 R622
R CARBON FILM RD-AZ184J-21/6 180K OHM JR504 R765
R CARBON FILM RD-AZ220J-31/6 22 OHM JR435 R436 R534
R CARBON FILM RD-AZ221J-61/6 220 OHM J
R CARBON FILM RD-AZ222J-14 1/6 2.2K OHM J
R CARBON FILM RD-AZ223J-91/6 22K OHM J
R CARBON FILM RD-AZ224J-11/6 220K OHM JR771
R CARBON FILM RD-AZ271J-71/6 270 OHM J
R CARBON FILM RD-AZ272J-51/6 2.7K OHM JR222 R223 R311 R429 R430
R CARBON FILM RD-AZ273J-31/6 27K OHM JR542 R555 R556
R CARBON FILM RD-AZ274J-21/6 270K OHM JR627 R628
R CARBON FILM RD-AZ331J-51/6 330 OHM JR007 R305 R316 R326 R687
R CARBON FILM RD-AZ332J-91/6 3.3K OHM J
R CARBON FILM RD-AZ333J-21/6 33K OHM JR715 R779
R CARBON FILM RD-AZ334J-41/6 330K OHM JR313 R757 R758 R762
R CARBON FILM RD-AZ390J-21/6 39 OHM JR671 R755
R CARBON FILM RD-AZ391J-71/6 390 OHM J
R CARBON FILM RD-AZ392J-41/6 3.9K OHM JR415 R416 R529 R912
R CARBON FILM RD-AZ562J-51/6 5.6K OHM JR002 R431 R432 R617 R618
R CARBON FILM RD-AZ563J-91/6 56K OHM J
R CARBON FILM RD-AZ680J-21/6 68 OHM JR601 R602
R CARBON FILM RD-AZ681J-71/6 680 OHM J
R CARBON FILM RD-AZ682J-41/6 6.8K OHM JR001 R219 R603 R604
R CARBON FILM RD-AZ683J-41/6 68K OHM JR705 R706 R707 R717
R CARBON FILM RD-AZ752J-21/6 7.5K OHM JR317 R319
R CARBON FILM RD-AZ820J-11/6 82 OHM JR506
R CARBON FILM RD-AZ821J-21/6 820 OHM JR309 R320
R CARBON FILM RD-AZ822J-31/6 8.2K OHM JR507 R524 R527
R CARBON FILM RD-AZ823J-21/6 82K OHM JR535 R536
R CARBON FILM RD-2Y229J-11/2 2.2 OHM JR550
R CARBON FILM RD-2Y475J-11/2 4.7M OHM JR918
R CARBON FILM RD-4Z100J-11 1/4 10 OHM J
R CARBON FILM RD-4Z689J-21/4 6.8 OHM JR736 R739
R FUSIBLERF01F4780J20.47OHM 1WRF901 RF902
R SEMI FIXEDRV1417222-1
R SEMI FIXEDRV6417223-3VM6CK-PV(1S) B 22K OHM RV201 RV501 RV502
RESONATOR5PCSA8MTZ-1"CSA8MTZ, 8MHZ"XC701
RESONATOR
C CERACCZB1E121K325V B 120PF K (AXIAL)CC508 CC613 CC614
C CERACCZB1E151K225V B 150PF K (AXIAL)CC531 CC532
C CERACCZB1E152K125V B 1500PF K (AXIAL)CC523
C CERACCZB1E221K525V B 220PF K (AXIAL)CC724 CC802 CC806 CC810 CC814
C CERACCZB1E222K225V B 2200PF K (AXIAL)CC510 CC516
C CERACCZB1E472K425V B 4700PF K (AXIAL)CC213 CC518 CC542 CC543
C CERACCZB1E681K225V B 680PF K (AXIAL)CC302 CC303
C CERACCZB1E682K125V B 6800PF K (AXIAL)CC514
C CERACCZB1E821K825V B 820PF K AXIAL
C CERACCZB1H221K150V B 220PF KCC610
C CERACCZF1H104Z150V HIKF 0.1MF ZCC616
C CERACXCH1H101J150V CH 100PF J (TAPPING) CC563
C CERACZCH1E101J17 CH 25V 100PF J AXL 52MM
C CERACZCH1E150J1CH 25V 15PF J (AXIAL)CC714
C CERACZCH1E180J2CH 25V 18PF J (AXIAL)CC104 CC715
C CERACZCH1E309K1CH 25V 3PF K AXIALCC519
C CERACZCH1E330J5CH 25V 33PF J AXIAL 52MM CC255 CC256 CC716 CC717 CC719
C CERACZCH1E331J1
C CERACZCH1E470J7CH 25V 47PF J AX
C CERACZCH1E809K1CH 25V 8PF K AXL 52MMCC517
C CERACZCH1E820J1CH 25V 82PF J AXL 52MMCC276
C CERACZCH1H270J2CH 50V 27PF J AXL 52MMCC524 CC525
C ELECTROCEXE1C102A116V RS 1000MF 13X20CE515
C ELECTROCEXF1A102V110V RSS 1000MF (10X16) TP CE703
C ELECTROCEXF1C221V516V RSS 220MF (8X11.5) TP CE507 CE511 CE512 CE513 CE517
R CARBON FILM RD-AZ105J-51/6 1M OHM JR505 R508 R559 R560 R641
R CARBON FILM RD-AZ106J-11/6 10M OHM JR761
R CARBON FILM RD-AZ109J-21/6 1 OHM JR906 R907
R CARBON FILM RD-AZ121J-11/6 120 OHM JR551
R CARBON FILM RD-AZ124J-31/6 120K OHM JR513 R535 R536
R CARBON FILM RD-AZ151J-31/6 150 OHM JR302 R313 R323
R CARBON FILM RD-AZ152J-71/6 1.5K OHM J
R CARBON FILM RD-AZ153J-14 1/6 15K OHM J
R CARBON FILM RD-AZ154J-21/6 150K OHM JR503 R525
R CARBON FILM RD-AZ181J-31/6 180 OHM JR303 R314 R324
R CARBON FILM RD-AZ182J-31/6 1.8K OHM JR413 R414 R734
R CARBON FILM RD-AZ183J-51/6 18K OHM JR201 R203 R526 R621 R622
R CARBON FILM RD-AZ184J-21/6 180K OHM JR504 R765
R CARBON FILM RD-AZ220J-31/6 22 OHM JR435 R436 R534
R CARBON FILM RD-AZ221J-61/6 220 OHM J
R CARBON FILM RD-AZ222J-14 1/6 2.2K OHM J
R CARBON FILM RD-AZ223J-81/6 22K OHM J
R CARBON FILM RD-AZ224J-11/6 220K OHM JR771
R CARBON FILM RD-AZ271J-71/6 270 OHM J
R CARBON FILM RD-AZ272J-51/6 2.7K OHM JR222 R223 R311 R429 R430
R CARBON FILM RD-AZ273J-31/6 27K OHM JR542 R555 R556
R CARBON FILM RD-AZ274J-21/6 270K OHM JR627 R628
R CARBON FILM RD-AZ331J-51/6 330 OHM JR007 R305 R316 R326 R687
R CARBON FILM RD-AZ332J-91/6 3.3K OHM J
R CARBON FILM RD-AZ333J-21/6 33K OHM JR715 R779
R CARBON FILM RD-AZ334J-41/6 330K OHM JR313 R757 R758 R762
R CARBON FILM RD-AZ390J-21/6 39 OHM JR671 R755
R CARBON FILM RD-AZ391J-71/6 390 OHM J
R CARBON FILM RD-AZ392J-41/6 3.9K OHM JR415 R416 R529 R912
R CARBON FILM RD-AZ682J-41/6 6.8K OHM JR001 R219 R603 R604
R CARBON FILM RD-AZ683J-41/6 68K OHM JR705 R706 R707 R717
R CARBON FILM RD-AZ752J-21/6 7.5K OHM JR317 R319
R CARBON FILM RD-AZ820J-11/6 82 OHM JR506
R CARBON FILM RD-AZ821J-21/6 820 OHM JR309 R320
R CARBON FILM RD-AZ822J-31/6 8.2K OHM JR507 R532 R533
R CARBON FILM RD-2Y229J-11/2 2.2 OHM JR550
R CARBON FILM RD-2Y475J-11/2 4.7M OHM JR918
R CARBON FILM RD-4Z100J-11 1/4 10 OHM J
R CARBON FILM RD-4Z689J-21/4 6.8 OHM JR736 R739
R FUSIBLERF01F4780J20.47OHM 1WRF901 RF902
R SEMI FIXEDRV1417222-1
R SEMI FIXEDRV6417223-3VM6CK-PV(1S) B 22K OHM RV201 RV501 RV502
RESONATOR5PCSA8MTZ-1"CSA8MTZ, 8MHZ"XC701
RESONATOR