background image
SERVICE MANUAL
DA
TA
CDC-R227 YZ(S)
STEREO CAR CD STEREO
S/M Code No. 09-026-458-8R1
REVISION
BASIC CD MECHANISM : BZG-3 CNF
·This service Manual is the "Revision Publishing" and replaces "Simple
Manual" CDC-R227 <YZ(S)> (S/M Code No.09-026-458-8T1)


background image
-2-
SPECIFICATIONS ................................................................................................................................................................ 3
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING ......................................................................... 4
PRACAUTION TO REPLACE OPTICAL BLOCK (OPTIMA720 JVC) .................................................................................... 5
CAUTION WHEN SERVICING ............................................................................................................................................ 6
ACCESSORIES PARTS LIST ............................................................................................................................................ 7
ELECTRICAL PARTS LIST ........................................................................................................................................ 8 ~ 17
TRANSISTOR ILLUSTRATION ......................................................................................................................................... 18
SCHEMATIC DIAGRAM ­ 1 (MAIN) .................................................................................................................................. 19
WIRING ­ 1 (MAIN) ............................................................................................................................................................ 20
SCHEMATIC DIAGRAM ­ 2 (FRONT / AUX) ..................................................................................................................... 21
WIRING ­ 2 (FRONT / AUX) ......................................................................................................................................... 22,23
SCHEMATIC DIAGRAM ­ 3 (CD / FLEX / SW) ................................................................................................................. 24
WIRING ­ 3 (CD) ................................................................................................................................................ 25,26
WIRING ­ 4 (FLEX / SW) ................................................................................................................................................... 27
VOLTAGE CHART .................................................................................................................................................... 28 ~ 31
LCD DIAGRAM (CKC-A-G-H) ...................................................................................................................................... 32,33
IC BLOCK DIAGRAM ............................................................................................................................................... 34 ~ 37
IC DESCRIPTION ...................................................................................................................................................... 38 ~ 42
MECHANICAL EXPLODED VIEW ................................................................................................................................... 43
MECHANICAL PARTS LIST ............................................................................................................................................. 44
COLOR NAME TABLE ....................................................................................................................................................... 45
CD MECHANISM EXPLODED VIEW (BZG-3 CNF) ......................................................................................................... 46
CD MECHANISM PARTS LIST (BZG-3 CNF) .............................................................................................................. 47,48
OTHER PARTS LIST (CDC-R227) .................................................................................................................................... 49
OTHER PARTS LIST (BZG-3 CNF) .................................................................................................................................. 50
TABLE OF CONTENTS -1/1


background image
-3-
RADIO SECTION
(FM)
Frequency Range: 87.5 MHz ­ 108 MHz
Usable Sensitivity: 12.7 dBf
50 dB Quieting Sensitivity: 17.2 dBf
IF Rejection: 100 dB
Frequency Response: 30 Hz ­ 15,000 Hz
S/N Ratio: 67 dB
Stereo Separation: 35 dB at 1 kHz
Alternate Channel Selectivity: 98 dB
Capture Ratio: 3 dB
(MW)
Frequency Range: 531 kHz ­ 1,602 kHz
Usable Sensitivity: 30 µV (30 dB)
(LW)
Frequency Range: 144 kHz ­ 288 kHz (1-kHz/9-kHz setps)
Usable Sensitivity: 30 µV (30 dB)
CD SECTION
Frequency Response: 17 Hz ­ 20 kHz +0/­3 dB
Dynamic Range: More than 92 dB
Channel Separation: More than 60 dB
S/N Ratio: More than 92 dB
Wow/Flutter: Unmeasurable
· Design and specifications are subject to change without notice.
AUDIO SECTION
Max. Power Output: 45 W x 4 channels
AUX input
Input Sensitivity (load impedance) AUX: 300 mV (10 kohm)
GENERAL
Power-Supply Voltage: 14.4 V (11 to 16 V allowable),
DC, negative ground
Load Impedance: 4 ohm
Tone Control:
Bass ± 10 dB at 100 Hz, Treble ± 10 dB at 10 kHz
Preamp Output Voltage (load impedance): 2.2 V (10 kohm)
Installed Size: 182 (W) x 53 (H) x 155 (D) mm
Supplied Accessory:Carrying case(1)
SPECIFICATIONS -1/1


background image
-4-
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING -1/1
VAROITUS!
Laiteen Käyttäminen muulla kuin tässä käyttöohjeessa mainit-
ulla tavalla saattaa altistaa käyt-täjän turvallisuusluokan 1 ylit-
tävälle näkymättömälle lasersäteilylle.
VARNING!
Om apparaten används på annat sätt än vad som specificeras i
denna bruksanvising, kan användaren utsättas för osynling
laserstrålning, som överskrider gränsen för laserklass 1.
Caution: Invisible laser radiation when
open and interlocks defeated avoid expo-
sure to beam.
Advarsel:Usynling laserståling ved åbning,
når sikkerhedsafbrydere er ude af funktion.
Undgå udsættelse for stråling.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
ATTENTION
L'utilisation de commandes, réglages ou procédures autres que
ceux spécifiés peut entraîner une dangereuse exposition aux
radiations.
ADVARSEL!
Usynlig laserståling ved åbning, når sikkerhedsafbrydereer ude
af funktion. Undgå udsættelse for stråling.
This Compact Disc player is classified as a CLASS 1 LASER
product.
The CLASS 1 LASER PRODUCT label is located on the rear
exterior.
This set employs laser. Therefore, be sure to follow carefully the
instructions below when servicing.
WARNING!
WHEN SERVICING, DO NOT APPROACH THE LASER EXIT
WITH THE EYE TOO CLOSELY. IN CASE IT IS NECESSARY TO
CONFIRM LASER BEAM EMISSION. BE SURE TO OBSERVE
FROM A DISTANCE OF MORE THAN 30cm FROM THE
SURFACE OF THE OBJECTIVE LENS ON THE OPTICAL
PICK-UP BLOCK.
CLASS 1
KLASSE 1
LUOKAN 1
KLASS 1
LASER PRODUCT
LASER PRODUKT
LASER LAITE
LASER APPARAT


background image
-5-
PRECAUTION TO REPLACE OPTICAL BLOCK -1/1 (OPTIMA720 JVC)
Solder
1) After the connection, remove solder shown in
the right figure.
Body or clothes electrostatic potential could ruin
laser diode in the optical block. Be sure ground
body and workbench, and use care the clothes
do not touch the diode.