Page 1
RP7992A
APRIL/01
Audio/Communication
Basic Service Data
Latin America After Sales
Indianapolis, IN 46290 U.S.A.
SERVICE DATA INDEX
General Information/Safety Precautions ......................................................................... 1-2
Disassembly ................................................................................................................... 2-1
Alignments ...................................................................................................................... 3-1
Troubleshooting Guides ................................................................................................. 4-1
Trouble Aids (Waveforms, Voltage, Timing Charts) ...................................................... 5-1
Replacement Partslist ..................................................................................................... 6-1
Exploded Views .............................................................................................................. 7-1
Block Diagrams ............................................................................................................... 8-1
Schematic Diagrams ........................................................................................................ 9-1
Circuit Boards ................................................................................................................. 10-1
RP7992A
Page
Number
CAUTION: Modification or repair of this unit by unauthorized persons is a direct violation of FCC Rules Part 68.216 and could
result in risk of electric shock. You are urged to contact a qualified factory authorized service facility for repairs.
SAFETY NOTICE
USE ISOLATION TRANSFORMER WHEN SERVICING
Components having special safety characteristics are identified by a ( ) on schematics and on the parts list in this Service Data and its bulletins.
Before servicing this instrument, it is important that the service technician read and follow the "Safety Precautions" in the Basic Service Data.
First Edition - First Printing
Copyright 2001 - Thomson Multimedia, Inc.
Printed in U.S.A. - Trademark(s)
®
Registered - Marca(s) Registrada(s)
RP7992A
Page 2
SAFETY PRECA UTIONS
1. Before returning the instrument to the customer, always make a
safety check of the entire instrument, including, but not limited to, the
following items:
a. Be sure that no built-in protective devices are defective and/or
have been defeated during servicing. (1) Protective shields are
provided on this instrument to protect both the technician and the
customer. Correctly replace all missing protective shields, including
any removed for servicing convenience. (2) When reassembling
the instrument, be sure to put back in place all protective devices,
including, but not limited to, nonmetallic control knobs, insulating
fishpapers, adjustment and compartment covers/shields, and
isolation resistor/capacitor networks. Do not operate this
instrument or permit it to be operated without all protective
devices correctly installed and functioning. Servicers who
defeat safety features or fail to perform safety checks may be
liable for any resulting damage, and may expose themselves
and others to possible injury.
b. Be sure that there are no cabinet openings through which an adult
or child might be able to insert their fingers and contact a
hazardous voltage. Such openings include, but are not limited to,
(1) excessively wide cabinet ventilation slots, and (2) improperly
fitted and/or incorrectly secured cabinet covers.
c. Leakage Cold Check - With the instrument AC plug removed
from any AC source, connect an electrical jumper across the two
AC plug prongs. Place the instrument AC switch in the on
position. Connect one lead of an ohmmeter to the AC plug prongs
tied together and touch the other ohmmeter lead in turn to each
push button/customer control, exposed metal screws, metallized
overlays and to each cable connector. If the measured resistance
is less than 1.0 megohm or greater than 5.2 megohm an abnormality
exists that must be corrected before the instrument is returned to
the customer. Repeat this test with the AC switch in the off
position.
C101.1 Leakage Current for Appliances and Underwriters
Laboratories (UL) 1492 (Section 67). Measure for current from a
known earth ground (metal waterpipe, conduit, etc.) to all exposed
metal or conductive parts of the instrument (antenna connections,
handle bracket, metal cabinet, screwheads, metallic overlays,
push-buttons, control shafts, etc.), especially any exposed metal
parts that offer an electrical return path to the chassis. Any current
measured must not exceed 0.5 milliamp. Reverse the instrument
power cord plug in the outlet and repeat the test.
ANY MEASUREMENTS NOT WITHIN THE LIMITS
SPECIFIED HEREIN INDICATE A POTENTIAL SHOCK
HAZARD THAT MUST BE ELIMINATED BEFORE
RETURNING THE INSTRUMENT TO THE CUSTOMER
OR BEFORE CONNECTING TO ANTENNA OR
ACCESSORIES.
e. Interconnected Equipment AC Leakage Test
Avoid shock hazards. The instrument, accessory, or cable(s) to
which this instrument is connected should have the applicable
sections of the leakage resistance cold check and the leakage
current hot check performed. Do not connect this instrument to an
antenna, cable or accessory that exhibits excessive leakage currents.
2. Read and comply with all caution and safety-related notes on or inside
the instrument cabinet, and on the chassis.
3. Design Alteration Warning - Do not alter or add to the mechanical or
electrical design of this instrument. Design alterations and additions,
including, but not limited to, circuit modifications and the addition of
items such as auxiliary audio output connections, cables and accessories,
etc., might alter the safety characteristics of this instrument and create
a hazard to the user. Any design alterations or additions will void the
manufacturer's warranty and will make you, the servicer responsible
for personal injury or property damage resulting therefrom.
d. Leakage Current Hot Check
On completely assembled instrument, plug the AC line cord
directly into a 120V AC outlet. (Do not use an isolation transformer
during this test.) Use a leakage current tester or a metering system
that complies with American National Standards Institute (ANSI)
4. Observe original lead dress. Take extra care to assure correct lead dress
in the following areas: (a) near sharp edges, (b) near thermally hot parts
- be sure that leads and components do not touch thermally hot parts,
and (c) the AC supply. Always inspect in all areas for pinched, out-ofplace, or frayed wiring. Do not change spacing between components
and the printed-circuit board. Check AC power cord for damage.
5. Components, parts and/or wiring that appear to have overheated or are
otherwise damaged should be replaced with components, parts or
wiring that meet original specifications. Additionally, determine the
cause of overheating and/or damage and, if necessary, take corrective
action to remove any potential safety hazard.
6. PRODUCT SAFETY NOTICE - Many electrical and mechanical
parts have special safety-related characteristics, some of which are
often not evident from visual inspection, nor can the protection they
give be obtained by replacing them with components rated for higher
voltage, wattage, etc. Parts that have special safety characteristics are
identified in this service data by a (|) on schematics and in the parts list.
Use of a substitute replacement that does not have the same safety
characteristics as the recommended replacement part in this service
data parts list might create shock, fire and/or other hazards. Product
Safety is under review continuously and new instructions are issued
whenever appropriate. For the latest information, always consult the
appropriate current service literature.
1-2
Page 3
RP-7992A MECHANISM ASSEMBL Y
7-1
Page 4
RP-7992A MECHANISM ASSEMBLY
7-2
Page 5
REPLACEMENT PARTS
6-1
January
1999
PartsList
6-1
BEFORE REPLACING PARTS, READ THE FOLLOWING:
Approved Substitute Stock Numbers - Before ordering stock
numbers in the part list, look for an approved substitute stock
number in the current Price Schedule. This will minimize your
service time and avoid ordering parts you already have in stock.
PRODUCT SAFETY NOTE: Components marked with a critical
safety symbol have special characteristics important to safety.
Before replacing any of these components, carefully read the
PRODUCT SAFETY NOTICE in the basic service data. Do not
degrade the safety of the set through improper servicing. Although
assemblies as a whole may not be marked with a critical safety
symbol , replacement of assemblies with other assemblies not
approved may result in a safety hazard.
Critical Safety Symbol
Not Eligible For Warranty
@NOTE: When ordering components that are listed more than once in this part list, always adhere to the serial number application guidelines
given in the description column. If a serial number application guideline is not given, always select the component with a value, rating, other
specification or identification marking(s) that match those of the corresponding component in the instrument you are servicing.
Warranty Status of Assemblies and Parts - All assemblies and
components shown in this part list are eligible for warranty exchange
or replacement except those with a dot shown to the left of the
Description. Assemblies and components with a dot to the left of the
Description are NOT eligible for warranty exchange or replacement.
Warranty replacement of cabinet parts requires the approval of a
Thomson Consumer Electronics Field Service Manager.
Warranty Status and Specifications of assemblies and components
are subject to change without notice. Consult the TCE Parts Pricing
Microfiche for the latest warranty status information.
Symbol DescriptionDrawing Symbol StockDescription Drawing
RP-7992A
CABINET & CHASSIS
1 4A30975 GRILLE SPEAKER R0102-41621-00
2 9A28860 DOOR CASS0101-43364-00
3 6A28861 LENS CASS DOOR0101-43358-00
4 2A28862 HOLDER CASS0101-43359-00
5 6A28863 LENS DISPLAY0101-43357-00
6 98A28864 CABINET FRONT0101-43342-00
7 3A28865 SPRING CASS DOOR0102-41624-00
8 6A28866 LENS DIAL0101-43356-00
10 43A28867 BUTTONS CD CONTROL L0101-43890-00
101 4A28903 PANEL CASS KEY INSERT0101-43346-00
13 62A28868 MECHANISM CASSETTE ASY0115-11100-1H
14 43A28869 KNOB CASS PAUSE0101-43691-00
15 43A28870 KNOB CASS STOP/EJECT0101-43692-00
16 43A28871 KNOB CASS FF0101-43693-00
17 43A28872 KNOB CASS REW0101-43694-00
18 43A28873 KNOB CASS PLAY0101-43695-00
19 43A28874 KNOB CASS OTR0101-43696-00
21 2A28875 LEVER BAND/FUNCTION0101-43759-00
22 43A28876 KNOB SWITCH0101-43349-00
23 43A28877 KNOB D.BB0101-43351-00
24 43A28878 KNOB VOLUME0101-43350-00
31 2A28879 PLATE CHUCKING0101-32546-01
32 2A28880 PLATE CD CONTROL KNOB0101-43360-00
33 2A28881 MAGNET RING0110-30577-00
34 2A28882 PLATE CHUCKING0102-31274-00
35 9A28883 DOOR CD0101-43344-00
36 3A28884 SPRING CD DOOR0102-41623-00
Stock
37 98A28885 CABINET BACK0101-43343-00
38 82A28886 ANTENNA WHIP0114-06141-00
40 78A28887 HANDLE0101-43345-00
42 9A28888 DOOR BATTERY0101-43355-00
45 45A28889 FOOT RUBBER CABINET
50 88A28890 TRANSFORMER0326-74832-16A
56 2A28891 GEAR CD DOOR0101-43490-00
57 73A28892 MECHANISM CD ASY0115-60105-0E
58 60A28893 INSULATOR RUBBER BLUE0109-30270-00
61 60A28894 INSULATOR RUBBER BLK0109-30270-01
65 43A28895 KNOB TUNING0101-43352-00
66 2A28896 GEAR PVC0101-43491-01
73 43A28869 KNOB CASS PAUSE0101-43691-00
74 45A28897 FOOT RUBBER CAB FRT0109-40364-00
77 2A28898 HOLDER GEAR CASS DOOR0101-43489-00
78 2A28899 GEAR CASS DOOR0101-43488-00
79 89A28900 GRILLE SPEAKER L0102-41622-00
80 95A28901 SPEAKER0118-08077-18
94 2A28891 GEAR CD DOOR0101-43490-00
98 2A28902 CONTACT SPRING BATT0119-30284-00
0109-40346-00
CASSETTE MECHANISM
23 39A28935 SWITCH LEAF21--01--023A
35 2A28936 ARM PINCH ROLLERA--04
39 2A28937 ARM RF ASSYA--09
42 29A28938 BELT RFA--4001--0A
44 62A28939 FLYWHEEL ASYA--10
51 2A28940 GEAR REEL ASYA--06
52 5A28941 GEAR TAKE-UPA--07
53 2A28942 LEVER REC SAFETYA--3017--0
BACK
Page 6
6-2
REPLACEMENT PARTS
January
1999
6-2
StockSymbol DescriptionDrawing Symbol StockDescription Drawing
(Continued)
56 6A28943 PULLEYA--3018--0
59 29A28944 BELT MAINA--4003--3A
62 2A28945 LEVER EJECT SLIDEA--3019--0HV
68 72A28946 MOTORM9T12U24--1
86 62A28947 HEAD R/PBS--09
ELECTRICAL COMPONENTS
C617 4A28934 CAP CER 0.02UF +80-20% 50V0336-30002-50
C805 4A28933 CAP LYTC 2200MFD 20% 25V0335-42200-25
CF303 36A28930 FILTER CER0342-2455Y-00
COR 66A28931 CORD AC POWER0349-30005-10
D101 EA16X0878 DIODE 1N41480344-14148-01
D102 EA16X0878 DIODE 1N41480344-14148-01
D103 EA16X0878 DIODE 1N41480344-14148-01
D301 EA16X0878 DIODE 1N41480344-14148-01
D302 EA16X0878 DIODE 1N41480344-14148-01
D303 16A26092 DIODE AFC0344-12638-01
D601 16A28912 DIODE 1N40040344-14004-08
D602 EA16X0878 DIODE 1N41480344-14148-01
D603 EA16X0878 DIODE 1N41480344-14148-01
D604 EA16X0878 DIODE 1N41480344-14148-01
D801 16A28912 DIODE 1N40040344-14004-08
D802 16A28912 DIODE 1N40040344-14004-08
D803 16A28912 DIODE 1N40040344-14004-08
D804 16A28912 DIODE 1N40040344-14004-08
DIO 17A28914 DIODE LED GREEN0346-20002-00
DIS 63A28915 DISPLAY LCD0347-40059-18
FIL 36A26090 FILTER CER 10.7MHZ0342-1107M-24
FIL 36A28911 FILTER CER0342-107MS-2M0
IC101 33A28924 IC KS57C0104-060330-10406-15
IC102 33A26828 IC KS9282B0330-92828-15
IC103 33A28926 IC KA9270D0330-92700-15
IC104 33A28925 IC KA9220C0330-9220C-15
IC105 33A28923 IC KA9258D0330-09258-015
IC301 33A28908 IC TA8164P0330-08164-01
IC302 EA33X9010 IC TA7343AP0330-7343A-01
IC501 33A28920 IC BA3313L0330-3313L-17
IC501 33A28919 IC BA3312N0330-3312N-17
IC601 33A28909 IC KIA6269P0330-6269P-40
IC602 33A28910 IC NJM7808FA0330-7808F-44
MEC 73A28932 MECHANISM CD ASY0115-60115-00A
PJ601 41A28904 JACK HEADPHONE0322-63511-01
Q101 15A28833 TRANSISTOR KSR10030329-01003-17
Q102 15A28922 TRANSISTOR SS9012G0329-9012G-17
Q103 15A28922 TRANSISTOR SS9012G0329-9012G-17
Q601 15A28907 TRANSISTOR0329-3198G-22
Q602 15A28907 TRANSISTOR0329-3198G-22
SOC 8A08928 SOCKET AC0322-30021-11A
SOC 8A08928 SOCKET AC0322-30021-11A
SW301 39A28906 SWITCH SLIDE0323-20375-00
SW601 39A28905 SWITCH SLIDE0323-20294-00
SWI 39A28918 SWITCH REC0324-90088-04
SWI 39A28918 SWITCH REC0324-90088-04
SWI 39A28921 SWITCH QUIT ACTION0323-60208-03
SWI 39A28916 SWITCH PUSH0324-20085-13
SWI 39A28913 SWITCH TACT0324-10054-04
TRA 88A28929 TRANSFORMER POWER0326-14141-241
VR401 49A28917 RES CONTROL0325-10207-25
X101 41A28927 RESONATOR CER 16.93MHZ0363-1693M-01
MISCELLANEOUS
LAB 77A28948 LABEL POPPOPRP7992
USE UCRP7992 USE & CARE GUIDEUCRP7992
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