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'TY || No. 544 EGF
(US,CS,VK,ZS,ES,BS,SA,EW)
nlY-8203F chassis
nil Y-8202F Chassis
-CONTENTS-———| INHALTSVERZEICHNIS————— TABLE DES MATIERES
SPECIFICATIONS ccsecsccceeeeee Pacers eRe ste
1 | TECHNISCHE DATEN .........cscsccscccstesessseessesentes 2 | CARACTERISTIQUES TECHNIQUES .............. 2
DISASSEMBLY ............ceccseiesesteccecseseeesecesenenserees 3 | DEMONTAGE ............ aren uti Sea u s edeucelueeudessatees 3
f F DEMONTAGE siwisiasasctatinnicrcsavieineetraaces 3
ADJUSTMENTS
.............. Noeeecl
ic ciees cmareahtenaesecces 6 | EINSTELLUNGEN
iin vicivccccisssccssissvazessscencconscese 6 | REGUAGES iio cess seeceexitnsicel
ete cdradigninees 6
EXPLANATION OF THE NEW PARTS ee
13 | ERLAUTERUNG DER NEUEN TEILE ......... .. 13. | EXPLICATION DES NOUVELLES PIECES ..... 13
VOLTAGE CHART ....ccccccesescceseccerstessestecsecseesees 26. | TABELL DES SPANNUNG
............. Leas
26
| TABLEAU DES TENSION
..........:.ccccccceseeees 26
|
|
TROUBLESHOOTING Sispudioteiweds os SESE ene 27 | FEHLERSUCHE
............... Sidctivitvonveadee er ||, RECHERCHE sccticstnsscexsticceticae sresaatieraates leaned
WIRING DIAGRAM ....scscsssssssssecsssessssseesssverseen 29 | VERDRAHTUNGSSCHEMA .........0.08 hse 29 | SCHEMA DE CABLAGE ........sssesssesessseccestee 29
PRINTED WIRING BOARD .........ssscseeseesseessees 31 | PRINTPLATTEN ......sssssssssscsssesessecenseseen eee SI.
||-PEAN, DE BASE 28arrccnisssaiostianncareran 31
CIRCUIT DIAGRAM .....ssssssessssssnsssserssrenssensene 33
SCHALTPLAN. j s csesssiissivivanestsunntncarstheachevsnsaen: ss 83)2:1 PLAN DE CIRCUIT: sisccsssctssiecceccocetacectncanseencarert 33
BLOCK DIAGRAN ............ bd cakt slereetnte so 37 | BLOCKSHEMA ......cccsseseesesesstseesesesteeesen diate BP
SCE
MAA ect Pe eaacst ccc eis cet nesta Ioan 37
EXPLODED VIEW ...cc.ccescesssesssescessees sieaeeta: 39 | EXPLOSIONSANSICHT .........sscssssesseesees sicvcli9-. || WUE EXPLOGEE stutetinsiiencmrstaneetaonana 39
REPLACEMENT PARTS LIST .......... dvevendenasteve 41 | ERSATZTEILLISTE ........00000.. Gesivaaneueivesians sats 41
| TABLEAU DES PIECES .......cccesscecesessessserees 43
SAFETY PRECAUTION
The following precautions should be observed when servicing.
)
1. Since many
parts in the unit have special safety related characteristics,
always use
genuine
Hitachi's
replacement parts. Especially critical parts in the power circuit block should not be replaced with other makers.
Critical parts are marked with A\ in the circuit diagram and printed wiring board.
2. Before returning a repaired unit to the customer, the service technician must thoroughly test the unit to
ascertain that it Is completely safe to operate without danger of electrical shock.
7
SPECIFICA Lnseisegh
OT
stereo
- |
Distortion:
3
.
1%
{at 1 kHz, 160nWb/m)
Tape: _
Cassette tape
|
-
~ Crosstalk:
60 dB (at 1 kHz) or more
Tape Speed:
4.75 cm/s
_
|
Input Sensitivity and
|
Recording System and Bias
tite
—_
a
eo
Impedance:
—_
7
Line 'in:
somv, 50 kohms or more
|
Frequency:
a
AC bias, 105 kHz
7
| |
|
Output Level and —
| os
Erasing System
AC erase
Impedance:.
Line out:
500mV
Erase Ratio:
65 dB (at 1 kHz) or more.
ee
(Suitable Load Impedance 50 kohms
Frequency Response: |
NOR-T:
20 Hz to 15 kHz
|
a
or more)
a
_
reo
30 Hz to 14 kHz (+3 dB)*
=
Headphones: 80mV (8 ohms)
CrO2- II:
20 Hz to 16 kHz
|
|
{Suitable Load Impedance 8 ohms to
30 Hz to 15 kHz (+3 dB)*
2 kohms) —
|
METAL-V:
20 Hz to.17 kHz
Power Supply:
=
—
« AC 220V, 50 Hz (for VK, ZS)
|
o o
ee
30 Hz to 16 kHz (+3 dB)*
3
AC 240V, 50 Hz (for BS)
Wow and Flutter: |
0.05%. (W-RMS)
|
AC 100—110/115—127/200—220 -
0.16%
:
—
-/230—250V, 50/60 Hz (for EW) —
Signal. to Noise Ratio: oe
—
Dolby
NR
OFF:
58 dB
Power
Consumption:
|
20W
|
(A weighted, Reference | |
oo
57 dB*
Dimensions:
|
370(W) x 129(H) x 276(D) mm
3% T.H.D)
Dolby
B NR:
66 dB
|
400(W) x 129(H) x 276(D) mm
o o
|
oe
65 dB*
(Including SIDE WOOD PANELS)
Dolby C NR:
72 dB
Weight:
4.8 kg
|
|
71 dB*
5.5 kg (Including SIDE WOOD PANELS)
* According to DIN 45 500.
Specifications are subject to change without notice for performance improvement.
\
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
: February 1987
TOYOKAWA WORKS
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