Panasonic cq fx 77 len service manual

Page 1

ORDER NO. ACED9903197

Service Manual

AUTOMOTIVE CONSUMER ELECTRONICS

CQ-FX88/77LEN

Specifications"
General LW Radio
Power Supply :DC 12V(11V - 16V), Frequency Range : 153 - 279kHz
Test Voltage 14.4V Usable Sensitivity :32dB/pV (S/N 20dB)

Tone Controls

Current Consumption

Maximum Power Output :
:40W x 4 (at 49)

Negative Ground

:Basa; : 12dB at 100Hz

Treble; : 12dB at 10kHz

: Less than 2.5A (rape mode,0.5w 4-Speaker)

60W x 4 (at 40)

Cassette Player
Reproduction System
Tape Speed
Frequency Response

:4-track, 2-program stereo
: 4.760m/sec.
:30 - 17,000Hz (Nomal)

30 - 18,000Hz (Metal)

Center Speaker Output :5W Wow and Flutter 20.12% (WRMS)
Speaker Impedance :4 - an
Pro-Amp Output Voltage :4V Dimensions : 178(W) x 50(H) x 150(D)mm
:2V
Weight" : 1.7kg
FM Stereo Radio : 1.5kg
Frequency Range :87.5 - 108MHz
Usable Sensitivity 26(1pr (S/N sodB) " Specifications and the design are subject to pos-
sible modification without notice due to
MW Radio improvements .
Frequency Range 1531 -1,602kHz " Dimensions and Weight showm are approximate.

Usable Sensitivity

:28dB/uV (SIN 20dB)

AWARNING

This service information Is designed tor experienced repair technicians only and is not designed for use by the general public. it
does not contain warnings or cautions to advise non~technical individuals ol potential dangers in attempting to service a product.
Products powered by electriclty should be serviced or repaired only by experienced prolfeslonal technicians. Any attempt to
service or repair the product or producs dealt with in this service information by anyone else could result in serious injury or death.

Panasonic

©1999 Matsushlta Communication Industrial Co., Ltd.
All rights reserved. Unauthorized copying and
distribution is a violation of law.

(Recycled Paper)

Page 2

CQ-FX88I77LEN I

CONTENTS
Page
DIMENSIONS . .. 1
FEATURES. 1
.. 1
.. 1
ALIGNMENT JIG 1
PRECAUTIONS... 1
< OPERATING INSTRUCTIONS >
Power and Sound Controls. .. 2, 3
Radio Basics ...... .. 3
RDS Reception .. 5
Cassette Tape Player Basics . 6
CD Chaner Basics , 7
Remote Control See c .. 7
Anti-Theft System. 8
Installation ......... , 9
Electrical Connection .. . 9
Speaker Connections. . 10
WIRING CONNECTION.. . 11
BLOCK DIAGRAM ...... . 12
WIRING DIAGRAM (Display) 13
WIRING DIAGRAM (Main) . 14
SCHEMATIC DIAGRAM (Display) .. . 15
SCHEMATIC DIAGRAM (Main: 60- , 17
SCHEMATIC / WIRING DIAGRAM (Sub.) 18
SCHEMATIC/WIRING DIAGRAM (Tape) . 19
SCHEMATIC/WIRING DIAGRAM (DC-DC) . 20
ALIGNMENT INSTRUCTIONS . 21

ALIGNMENT POINTS ..............
PAKAGE AND IC BLOCK DIAGRAM
TERMINALS DESCRIPTION .............
RE- ASSEMBLY PROCEDURE for REEL PWB ASS v ..... 26
REPLACEMENT PARTS LIST 27~ 37, 39, 4o
EXPLODED VIEW (Unit).... . 38
EXPLODED VIEW (Tape) ..

DIMENSIONS
176mm

WARNING!
thhlum batteries. Exploelon danger.
Change of batteries must only be done by
quallfled personnel and as descrlbed In the
servlce manual.
Furthermore, that the batteries must only be
changed with batterles of the same
manufacture and type.

ADVARSELI
thhlumbatterler. Exsploelonsfere.
Udsklttnlng ma kun foretagea at on segkynklg
cg som beskrevet l servlcemenuelen.
Batterlerne kun me udeklttes med batterier af
samme fabrlket 09 type.

WARNING!
LItthrn-Batterlen. Esploslonegefahr.
Dle Batterlen diirlen ner von qualifizlertem
Personal und gamer! Beschrelbung In der
Wertungsanleitung eusgetauscht werden. Die
Batterlen dfirfen ner dutch Batterien des
gleichen Herstellers und Type ersetzt werden.

FEATURES
0 24oStations Preset (ta-FM, 6-AM).
0 Radio Data System (PS, AF, CT, PI).
0 Electronic Control of Volume, Bass, Treble, Balance and
Faden
e Detachable Face Plate Security.

REPLACING THE FUSE

Use fuses of the same specified rating (15A). Using
different substitutes or fuses with higher ratings, or
connecting the unit directly without a fuse, could cause
fire or damage to the stereo unit.

MAINTENANCE

Your product is designed and manufactured to ensure a minimum
of maintenance. Use a soft cloth for routine
exterior cleaning. Never use benzine, thinner, or
other solvent.

ALIGNMENT JIG

I DOLBY NFI ALIGNM ENT;
Test tape : RFKZOOSB

Not

Thlr wanting Ittctrucllcn mlrtull 1- int Me module 00- FXMLEN nno co- Fxme N

The ttllfllertcu bmrm mm mod-ll m mtlnnad below All lIlu-tr-tlent throughout Ihlc m-nu-l root-um
model so FXEBLEN unlen otnnrwlu Ipecli led

llama MODEL CQ-FXIILEN CGFXTILEM
Output Power now 40W
Dolby NR System BIG 5
Sub- Woofer Out 7 - '7
a-DSEWtfienIel Speaker " V ' Ye: ' ' lion. 7
Spectrum Anolyxer m Nona
Level Meter Non. VIII _ _
LCD Color W'irollcolor Blue
Pre- -0Ul LBVBI 4 V 2 V

Precautions (ISO Connector)

. Wiring tor the power connector conforms lo the arrangement of standard ISO connectors
e In case of same car types, the arrangement of connector may dlilar from the standard ISO as
shown In Table I, even though Iso nenneclots are adapted.

ram. 1
no. I Pln Ne. M A,
0" '°' mm '50 [palmanErtnIuIBZWV supply) (swim; I'afifiooln
'" 57$ W" A (£53.22 calcified» (permnearflzazryv supply)
In case 0' Ca! Mia B No connectlon (w'mngfifiwv WW)

eMnke sure the ISO connector arrangement In your car elda Is as the name no the etnnoom
ISO. (Table 1. Fin. 1)

o In case of arrangement lor Cal type A or a, change oonneetlons oI Ihe red/yellow leads or the
recottrteclable tom 1) as shown In Fig I

m-Ar FACCIIGN Switch
vIEV

u mzv Battery

A7 mzv EllllfY
M rAcc/leN Switch

«IZV

A7 may Ellllry

Cur e

Fig.1

- Alter lelnq the connectlons. the part I I) should be Insulated with electrical tape to keep
ewey Irom unlI damage.