Hitachi-AXF-100-W-Service-Manual SERVICE MANUAL MANUEL D'ENTRETIEN WARTUNGSHANDBUCH
SM0100
AXF100E AXF100EBS AXF100UC AXF100W AXF100WUN
CAUTION:
Beforeservicing this chassis, itisimportantthat the servicetechnician read the"Safety Precautions"and"ProductSafetyNotices"inthisservicemanual.
ATTENTION:
Avantd'effectuerl'entretienduchâassis,letechniciendoitlireles«Précautionsdesécurité» etles«Noticesdesécuritéduproduit»présentésdansleprésentmanuel.
VORSICHT:
VorÖffnendesGehäuseshatderService-Ingenieurdie,,Sicherheitshinweise"und,,Hinweise zurProduktsicherheit"indiesemWartungshandbuchzulesen.
Data contained within this Service manual is subject to alteration for improvement.
Les données fournies dans le présent manueld'entretienpeuventfairel'objet demodificationsenvuedeperfectionner leproduit.
Die in diesem Wartungshandbuch enthaltenenSpezifikationenkönnensich zwecksVerbesserungenändern.
CONTENTS SPECIFICATIONS..................................................................................... ..........................................................3 SERVICE POINTS..............................................................................................................................................4 WIRING DIAGRAM.............................................................................................................................................8 PRINTED WIRING BOARD......... ......................................................................................................................9 CIRCUIT DIAGRAM...........................................................................................................................................17 BLOCK DIAGRAM.............................................................................................................................................29 EXPLODED VIEW.............................................................................................................................................31 REPLACEMENT PARTS LIST..........................................................................................................................35
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
MINI COMPONENT HI-FI SYSTEM September 2000
ENGLISH
SAFETY PRECAUTIONS
WARNING: The following precautions must be observed.
ALL PRODUCTS
Before any service is performed on the chassis an isolation transformer should be inserted between the power line and the product.
1. When replacing the chassis in the cabinet, ensure all the protective devices are put back in place.
2. When service is required, observe the original lead dressing. Extra precaution should be taken to ensure correct lead dressing in any high voltage circuitry area.
3. Many electrical and mechanical parts in HITACHI products have special safety related characteristics. These characteristics are often not evident from visual inspection, nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified by marking with a on the schematics and the replacement parts list. The use of a substitute replacement component that does not have the same safety characteristics as the HITACHI recommended replacement one, shown in the parts list, may create electrical shock, fire, X-radiation, or other hazards.
4. Always replace original spacers and maintain lead lengths. Furthermore, where a short circuit has occurred, replace those components that indicate evidence of overheating.
5. Insulation resistance should not be less than 2M ohms at 500V DC between the main poles and any accessible metal parts.
6. No flashover or breakdown should occur during the dielectric strength test, applying 3kV AC or 4.25kV DC for two seconds between the main poles and accessible metal parts.
7. Before returning a serviced product to the customer, the service technician must thoroughly test the unit to be certain that it is completely safe to operate without danger of electrical shock. The service technician must make sure that no protective device built into the instrument by the manufacturer has become defective, or inadvertently damaged during servicing.
CE MARK
1. HITACHI products may contain the CE mark on the rating plate indicating that the product contains parts that have been specifically approved to provide electromagnetic compatibility to designated levels.
2. When replacing any part in this product, please use only the correct part itemised in the parts list to ensure this standard is maintained, and take care to replace lead dressing to its original state, as this can have a bearing on the electromagnetic radiation/immunity.
PICTURE TUBE
1. The line output stage can develop voltages in excess of 25kV; if the E.H.T. cap is required to be removed, discharge the anode to chassis via a high value resistor, prior to its removal from the picture tube.
2. High voltage should always be kept at the rated value of the chassis and no higher. Operating at higher voltages may cause a failure of the picture tube or high voltage supply, and also, under certain circumstances could produce X-radiation levels moderately in excess of design levels. The high voltage must not, under any circumstances, exceed 29kV on the chassis (except for projection Televisions).
3. The primary source of X-radiation in the product is the picture tube. The picture tube utilised for the above mentioned function in this chassis is specially constructed to limit X-radiation. For continued X-radiation protection, replace tube with the same type as the original HITACHI approved type
4. Keep the picture tube away from the body while handling. Do not install, remove, or handle the picture tube in any manner unless shatterproof goggles are worn. People not so equipped should be kept away while picture tubes are handled
LASERS
If the product contains a laser avoid direct exposure to the beam when the cover is open or when interlocks are defeated or have failed.
AX-F100
· The caution labels on laser usage
· Notices de précautions d'emploi du laser
CLASS 1 LASER PRODUCT LUOKAN 1 LASERLAITE KLASS 1 LASERAPPARAT
CLASS 1 LASER PRODUCT LUOKAN 1 LASERLAITE KLASS 1 LASERAPPARAT
Check that exposed parts are acceptably insulated from the supply circuit before returning the repaired instrument to the customer.
· Checking method Measure the resistance value between the both poles of attachment cup (Power supply plug) and the exposed parts (Parts such as Knob, Cover, etc. where the customer is easy to touch.) and check that the resistance value is 500 kohms or more.
INSTRUMENT (Exposed part)
Insulation tester (DC 500V)
2
AX-F100
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 Hitachis replacement
parts. Especially critical parts in the power circuit block should not be replaced with other makers. Critical parts are marked with in the circuit diagram. 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.
SPECIFICATIONS· SPECIFICATIONS
RECEIVER SECTION
Tuner Range
: FM: 87.5 - 108.0 MHz (0.1 MHz step) UC : FM: 87.50 - 108.00 MHz (0.05 MHz step) E, EBS, W, WUN : MW: 520 - 1,710 kHz (10 kHz step) UC, W, WUN : MW: 522 - 1,611 kHz (9 kHz step) E, EBS, W, WUN : LW: 153 - 281 kHz (1 kHz step) E, EBS
CD SECTION
Sampling Frequency Laser
: 44.1 kHz : Semiconductor laser
TIMER SECTION
System Display Format
Timer Accuracy
: Digital Quartz Clock : 24-hour cycle E, EBS, W, WUN
12-hour cycle UC : Within 60 seconds at monthly rate in normal room temperature
GENERAL SPECIFICATIONS
Power Supply
: AC 110 - 127 V/220 - 240 V, 50/60 Hz W, WUN
: AC 120 V, 60 Hz UC
: AC 230 V, 50 Hz E, EBS
Power Consumption
: 48 W (ECO-ON mode: less than 1 W) E, EBS, W, WUN
: 1.1 A include AC outlet (ECO-ON mode: less than 1 W) UC
Rated Output Power
: 30 W + 30 W (6 ohms, THD 10%)
Inputs/Outputs
: MD, TAPE, AUX, Optical Digital Out, Pre out, Headphone, System Connector
SPEAKER SECTION
System Speaker Unit Impedance
: 2 Way Bass Reflex Speaker System : Woofer: 10 cm 1, Tweeter: 5 cm 1 : 6 ohms
DIMENSIONS
HCU-R30 Unit Speaker Unit
: 210 (W) 120 (H) 325 (D) mm : 150 (W) 275 (H) 227 (D) mm
WEIGHT
HCU-R30 Unit Speaker Unit
: 4.4 kg : 3.0 kg (1 speaker)
ACCESSORY SUPPLIED
: FM Antenna, AM LOOP Antenna, Remote Control (RB-AXF3), Battery, Edison plug adapter (For W, WUN only)
* Specifications are subject to change for performance improvement without notice.
3
AX-F100
SERVICE POINTS
1. Removal of Top Cover (1) Remove 4 screws 1 from each side. (2) Remove 4 screws 2 from the rear plate. Top cover
1
2 Fig. 1
1
2. Removal of Rear Plate and Power Cord (1) Remove 11 screws 3 and 4 from the rear plate. (2) Detach the power cord.
4
3 3. Removal of Tuner P.W.B Board
(1) Remove 2 screws 5. (2) Pull the tuner P.W.B gently to detach from
connector A of the main PCB.
1
3
4 5
2
9
10
7 6
8
11
Power cord
Fig. 2
5 Connector A
Fig. 3
4
4. Removal of Front Panel (1) Detach connector B & C (Refer to Fig. 5-2) (2) Remove 3 screws 6 from base of front panel. (3) Remove 1 screw 7 from each side and screw 8. (4) Release the claw of the Inner panel from each side. 6
7
AX-F100
8 Fig. 4-1
5. Removal of Front P.W.B Board (1) Remove the volume knob to detach the nut. (2) Remove 13 screws 9.
Claw
7
Fig. 4-2
Nut
Fig. 5-1
Volume knob
9
Connector B
Fig. 5-2
Connector C
5
AX-F100
6. Removal of Main P.W.B Board and Power Transformer
(1) Detach the connector D to K. (2) Remove 4 screws ! from base of the plate and 4
screws ". (3) Press and push downwards the P.W.B. support. (4) Gently pull the main P.W.B. upwards and remove
the Power Transformer.
No. CONNECTOR
D
CN702
E
CN701
F
PG301
G
PG302
H
PG501
"
I
PG601
J
CN501
K
PG505
L
PG602
!
P.W.B. Support
I KJ
G
H
F
D
Fig.6-1 L
E
Fig. 6-2
#
7. Removal of Amp P.W.B. Board (1) Remove 1 screw #. (2) Remove 4 screws $ from base of chassis.
Fig. 7-1 $
6
Fig. 7-2
8. Removal of P.W.B. Holder (1) Remove 3 screws % to detach the P.W.B. Holder.
%
%
AX-F100
Fig. 8
9. Removal of CD Mechanism Assembly (1) Remove 4 screws & and pull up the CD mechanism. &
Fig. 9 7
5P PH-SAN CONN CN503
AX-F100
WIRING DIAGRAM
8
AC-OUTLET PWB
W11A
W8B
BRN
GRY
VOL-SEL PWB
FOR W/WUN
W7A
RED W9B
RED W6A
5001
BLK RED YEL
W1B W2B W3B
WHT
2P MX CONN
CN302 1
I/0 PWB
CN301 1
3P PH-SAN CONN
3P TXL CONN
1 CN505
CN602
11 CN601
2P PH-SAN CONN
CN501
1 PG503
5P PH-SAN CONN
AMP PWB
CN504A CN502
11P PH-SAN CONN
8P PH-SAN CONN 10P PH-SAN CONN
CN701 1 1
CN201B CA701(30P FFC CABLE) REFER TO ILLUSTRATION B FOR DETAILS
AC1
RED GRY BRN
TRANS PWB
W5B
W6B
RED
W11B
W7B W4B
ORG
3P MX CONN
W2A W3A
W1A BLK
CN003
RED YEL
RED
1 PG001
W9A
W5A
PG501
1
PG302 1 PG301 1
RED
W4A
W8A
WHT
ORG (FOR UC/E/EBS ONLY)
1 PG601
MAIN PWB
1 PG602
2P MX CONN
1 PG003
CN002 REDBLUBLKBLURED
PG002 1 5P VH CONN 2P PH-SAN CONN
PG502
1
CN901A
1
CN702
2P TXL CON
TO CD MECHA 18P B-B
TH PWB
CN504B
3P DA-DA CONN
TU PWB
CN201A
1 PG505
11P PH-SAN CONN
CA901 (18P FFC CABLE) REFER TO ILLUSTRATION A FOR DETAILS
FL PWB
CN901B
FFC CABLE INSERTION
ILLUSTRATION A CN901A
ILLUSTRATION B CN701
CN9018
CD MECHA
PRINTED WIRING BOARD
Component Side
Soldering Side
AX-F100
TU PWB 9
AX-F100 Component Side
MAIN PWB 8
Soldering Side
AX-F100
MAIN PWB 9
AX-F100 Component Side
I/O P.W.B.
FL PWB
12
AC OUTLET P.W.B.
Soldering Side
AX-F100
I/O P.W.B.
FL PWB
13
AC OUTLET P.W.B.
AX-F100 Component Side
AMP PWB TH P.W.B.
TRANS P.W.B.
VOL-SEL P.W.B. 14
Soldering Side
AX-F100
AMP PWB TH P.W.B.
TRANS P.W.B.
15
VOL-SEL P.W.B.
AX-F100 16
CIRCUIT DIAGRAM
MAIN/POWER Circuit
AX-F100
17
18
19
AX-F100
CIRCUIT DIAGRAM
--FL DISP. Circuit
20
21
22
CIRCUIT DIAGRAM
TUNER Circuit
AX-F100
23
24
25
AX-F100
26
27
28
BLOCK DIAGRAM (MAIN)
AUX
MD IN MD OUT
JK 302
FM ANT
AM ANT
29
JK 101
FE101 B.P.F FM RF AMP & OSC MIX
Q102, Q103, IF AMP
IC201 LA1838 AM RF MIX AM/FM IF FM MPX
IC101
BL1
LC72131M
AM
PLL
RF
( E & EBS ONLY )
T203, T204 19 KHz LPF
Q105, Q106, Q107, Q108 L,RMUTE
JK601 SYSTEM BUS
TAPE IN
TAPE OUT
IC302 BU4066BCF TA/MD FUNC SW
JK 301
Q307, Q308 L, R MUTE
IC 303 BU4066BCF TA/MD REC SW
Q309, Q310 LR MUTE
IC251 LC72720NM RDS
(E/EBS & UC ONLY)
RE 901 ENCODER
KEY
IC602 EEPROM BR9040F
IC601 MN101C12GPT
µcon
IC301 LC75342 FUNC SW, EQUALIZER & ELECT VOLUME CONTROL
IC603 KIA7045 RESET
IC901 LC75725E FLD DRIVER
CD MECHA
JK602 OPT OUT
FL901 FL DISPLAY
Q305, Q306 L,R MUTE
IC501 STK 402-405 POWER AMPLIFIER
JK501 H.PHONE
Q505 MUTE
RY501 SPEAKER RELAY
JK503 SP TERMINAL
JK502 MONO OUT
AX-F100
AX-F100
BLOCK DIAGRAM (POWER)
30
FLD SUPPLY -27V
+40V
IC501 POWER AMPLIFIER SUPPLY
-40V +23V
-23V
SWITCHING IC301~303 & TUNER SUPPLY
+12V
CD MOTOR +9V SUPPLY
CD SUPPLY/
FLD DRIVER/BUS/ +6V TUNER SUPPLY
FLD FILAMENT
~3.5V
IC004 KIA7812
IC003 KIA7809
IC002 KIA7806
µ-CON/EEPROM/ +5V RESET
IC001 KIA7805
Q005 KTA1267
RECT D011
RECT D012
RECT D002~D005
POWER TRANSFORMER
PT1
FOR W,WUN ONLY
F002
SUB TRANSFORMER
PT001
FOR W,WUN ONLY
S001 VOLTAGE SELECTOR
F001 F003
AC OUTLET JK001
EXPLODED VIEW (Cabinet Chassis)
· Nos. are reference Nos. of part list
2
48
24 [FOR W, W(UN)] 23
FL DISP PWB
11 6
8
14
15
10 9
3 7 5
31
26 1
MAIN PWB
34 34
2 12
12
39
13
12
4
44 16 17
45 43
42 41
33
TRANSFORMER TU PWB
AX-F100
27
35
36
37 38
40
32 30
AMP PWB
46 28
47
4 43
43 42 41
42 31
25 29
25
43
18 19
20
20 20
20
41
42
22
[FOR E, E(BS)]
18 21
41
22
[FOR W, W(UN)]
32
THE UPDATED PARTS LIST FOR THIS MODEL IS AVAILABLE ON ESTA
Hitachi, Ltd. Tokyo, Japan International Sales Division THE HITACHI ATAGO BUILDING, No. 15 12 Nishi Shinbashi, 2 Chome, Minato Ku, Tokyo 105-8430, Japan.
Tel: 03 35022111
HITACHI EUROPE LTD, Whitebrook Park Lower Cookham Road Maidenhead Berkshire SL6 8YA UNITED KINGDOM Tel: 01628 643000 Fax: 01628 643400 Email: consumer -service@hitachi-eu.com
HITACHI EUROPE S.A. 364 Kifissias Ave. & 1, Delfon Str. 152 33 Chalandri Athens GREECE Tel: 1-6837200 Fax: 1-6835964 Email: service.hellas@hitachi-eu.com
HITACHI EUROPE GmbH Munich Office Dornacher Strasse 3 D-85622 Feldkirchen bei München GERMANY Tel: +49-89-991 80-0 Fax: +49- 89-991 80-224 Hotline: +49-180-551 25 51 (12ct/min) Email: HSE- DUS.service@hitachi-eu.com
HITACHI EUROPE S.A. Gran Via Carlos III, 101- 1 08028 Barcelona SPAIN Tel: 93 409 2550 Fax: 93 491 3513 Email: atencion.cliente@hitachi-eu.com
HITACHI EUROPE srl Via Tommaso Gulli N.39, 20147 Milano, Italia ITALY Tel: +39 02 487861 Tel: +39 02 38073415 Servizio Clienti Fax: +39 02 48786381/2 Email: customerservice.italy@hitachi-eu.com
HITACHI Europe AB Box 77 S-164 94 Kista SWEDEN Tel: +46 (0) 8 562 711 00 Fax: +46 (0) 8 562 711 13 Email: csgswe@hitachi-eu.com
HITACHI EUROPE S.A.S Lyon Office B.P. 45, 69671 BRON CEDEX FRANCE Tel: 04 72 14 29 70 Fax: 04 72 14 29 99 Email: france.consommateur@hitachi-eu.com
HITACH EUROPE AB Egebækgård Egebækvej 98 DK-2850 Nærum DENMARK Tel: +45 43 43 6050 Fax: +45 43 60 51 Email: csgnor@hitachi-eu.com
HITACHI EUROPE LTD (Norway) AB STRANDVEIEN 18 1366 Lysaker NORWAY Tel: 67 5190 30 Fax: 67 5190 32 Email: csgnor@hitachi-eu.com
HITACHI EUROPE AB Neopoli / Niemenkatu 73 FIN-15140 Lahti FINLAND Tel : +358 3 8858 271 Fax: +358 3 8858 272 Email: csgnor@hitachi-eu.com
Hitachi Europe Ltd Bergensesteenweg 421 1600 Sint- Pieters-Leeuw BELGIUM Tel: +32 2 363 99 01
Fax: +32 2 363 99 00 Email: sofie.van.bom@hitachi-eu.com
HITACHI EUROPE LTD Na Sychrove 975/8 101 27 Pr aha 10 Bohdalec CZECH REPUBLIC Tel: +420 267 212 383
Fax: +420 267 212 385 Email: csgnor@hitachi-eu.com
www.hitachidigitalmedia.com
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