Hitachi AXC 10 Service Manual

Page 1

YS No. 0025E
AX-CI 0

[UC, E, E(BS), E(Z), W, W(UN), W(AU)]

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CAUTION
DANGER
13" InvIsible laser radiation when open and imerIocks Iailed or defeated. AVOID DIRECT EXPOSURE To BEAM.
#0
GEFAHR
Unslchtbare Laser-Strahlung wznn Interlock (Blocklerung) funkliansuntflchtlg oder abgeschallet.
UNMI'I'I'ELBAFIEN KONTAKT MIT DEM STRAHL UNBEDIGT VERMEIDEN
DANGER
Faire Irés attention aux ladlations émises par la faisceau laser Invisible au déIaIIIanoe du venouiIIage
NE JAMAIS SEXPOSER DIRECTEMENT AU FAISCEAU
. VARNING _
Nir apparaten appnats och skyddsanordningen Mar eller sans ur lunklion Iémkommer osynllg Iaserstrélning.
3 UNDVIK DIREKTE BESIRAINGI
ADVARSEL
Nér apparml ébnes 05 beskynelsesanordningen ikke vlrker eller sakes un 31 iunktion, forekomlner der usynlig
Iasevstréling. UNDGA DIREKTE BESTRAUNG
ADVARSEL .
NAr denne delen er apen som {alga av at Iésen er mkoplet eIIer ikke Iungerer, eksisierer del usynlig IaserstrélingI
uNNGA A BLI ursmr FOR DIREKIE aEsmALmGI
VARIOITS
W Iain Iihenfia nékymenénlé Iasers'aLIeilyfi. kun se avataan ia kun sisilsel Bu rvalukot eivfit loimi.
g; VARO JOUTUMASTA ALTI'IIKSI SATEILVLLE.
CONTENTS TABLE DES MATIERES
SPECIFICATIONS I FICHE TECHNIQUE
SERVICE POINTS . POINTS DE SERVICE . -,
ADJUSTMENTS. REGLAGE y
TROUBLESHOOTING DEPISTAGE DES PANNES .
WIRING DIAGRAM SCHEMA DE CABLAG

PLAN DE BASE
PLAN DE CIRCUIT

PRINTED WIRING BOARD
CIRCUIT DIAGRAM

i BLOCK DIAGRAM I SCHEMA ....... \
EXPLODED VIEW V VUE EXPLOSEE
REPLACEMENT PARTS LIST TABLEAU DES PIECES

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

MINI HI-FI STEREO SYSTEM
November 1994 HITACHI CONSUMER PRODUCTS (S)

Page 2

AX-C10

. The caution labels on laser usage

- Notices de précaulions dernploi du laser

. D
LJ

1 CLASSl LASER PRODUCT
LUOKANl LASERLAITE
KLASS 1 LASERAPPARAT

( Check that exposed pans are acceptably insulated from
the supply circuit before returning the instrument repaired
to the customer,

0 Checking method
Measurethe resistance value between the both poles of
attachment cup (Power supply plug) and the exposed
parts (Parts such as Knob. Cover, etc. where the cus-
tomer is easy to touch) and check that the resistance
value is 500 kohms or more.

INSTRUMENT

(W P311)

E

-00-

Insulation tester (DC 500V) j 1

3'9

l
AX-CiD

SAFETY PRECAUTIONS

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 partsinlhe 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 testthe unit to ascertain that
it is completely safe to operate without danger of electrical shock.

SPECIFICATIONS
OTUNER SECTION

Circuit system: FM/MW/LW 3 bands

[for E. E(BS), E(Z)]

FM/SW/MW 3 bands

[for W, W(UN), W(AU)]

FMIAM 2 bands

[for UC]

[for E, E(BS), E(Z)]

FM: 37.5 - 108 MHz (50 kHz step)
MW1522 -1,611 kHz (9 kHz step)
LW: 153 - 281 kHz (1 kHz step)
[iorW. W(UN). wmun

FM: 87.5 - 1 08 MHZ (50 kHz step)
SW: 3.8 - 12.5 MHz (5 kHz step)
(MW Spacing: 9 kHz)

MW: 522 -1,611 kHz (9 kHz step)
(MW Spacing: 10 kHz)

MW3530 -1,710kHz (10 kHz step)
[for UC]

FM: 87,9 - 107:9 MHZ (100 kHz step)
AM: 530 -1.710 MHz (10 kHz step)

Tuning ra nge:

IEC Sensitivity: FM: 1.5 (IV/75 ohms
(SIN 26 63) MW: 1,200 pVIm (loop antenna)
LW: 2,500 uV/m (loop antenna)
[for E. E(BS), E(Z)]
sw: 400 V [for w, W(UN), wmun
AM: 1,400 pV/m (loop antenna)
[for UC]
- TAPE DECK SECTION
Track system: 4 tracks, 2 channels
Recording system: AC bias
Erasing system: AC erase
Tape: TAPE 1: Playback
TAPE 2: Recording/Playback
Normal/CrOz/Metal (Playback only)
Tape speed: 475 cm/s
Frequency
response: Normal: 40 - 15,000 Hz
0102: 40 - 16,000 Hz
SIN ratio: 63 dB (dolby-on, IHF-A, 3% THD)
0 AMPLIFIER SECTION
input sensitivin
Impedance: MIC: 2 mV (20 kohms)

AUX: 300 mV (47 kohms)
(US pin sockets)

Output Impedance: External speakerterminals
Suitable impedance: 6 - 16 ohms
Headphones
Suitable impedance: 8 - 100 ohms

Audio output: 20 W + 20 W (6 ohms, THE 1%)

0 TIMER SECTION
System: Digital quartz clock
Display format: 24-hour cycle
[for E. E(BS), E(Z)]
12-hour cycle
[for w, W(UN), W(AU), uc1
Timer accuracy: Within 60 seconds at monthly rate

- CD PLAYER SECTION

Number oi charm els: 2

Frequency
Response: 10 - 20.000 Hz
Disc: 12 cot/8 cm
Laser Diode
Properties: Wave length: 785 nm
Laseroutput: Less than 175 pW
(IEC Pub 825)
Less than 485 uw
(FDA CFR 21)
0 GENERAL SPECIFICATION
Power supply: AC 230 V, 50 Hz [for E, E(EBS), E(Z)]

AC 110 V - 120 V, 220V- 240V.
50/60 Hz [lorW, W(UN). W(AU))
AC 120 v. so Hz [for ucr
Battery: 45 V (3 X JIS REP (JlS SUM-
3) OR "AA" Cell or IEC R6)
(Optional)
Power consumption: 60 W

Dimensions: 225 (W) x 290 (H) x 320 (D) mm
Weight: 7.2 kg
SPEAKER SECTION
System: 3-way speaker system (HSvAxt 0)
Speakers: 13cm x 1 : 5cm x1 , 2cm x1
Impedance: 6 ohms
Maximum Input
Power: 35 W (music peak signal)
Dimensions: 170 (W) x 290 (H) x 198 (D) mm
Weight: 5.2 kg/pair "

0 ACCESSORIES

AM loop antenna: 1
Remote control
(FIB-AXC1 0): 1

Specifications are subject to change without notice for
performance improvement: