Hitachi HCUR700UC Service Manual
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Hitachi HCUR700UC Service Manual

Hitachi HCUR700UC Service Manual

Mini component hi-fi system
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CAUTION:
Before servicing this chassis, it is important that the service technician read the "Safety
Precautions" and "Product Safety Notices" in this service manual.
ATTENTION:
Avant d'effectuer l'entretien du châassis, le technicien doit lire les «Précautions de sécurité»
et les «Notices de sécurité du produit» présentés dans le présent manuel.
VORSICHT:
Vor Öffnen des Gehäuses hat der Service-Ingenieur die „Sicherheitshinweise" und „Hinweise
zur Produktsicherheit" in diesem Wartungshandbuch zu lesen.
SPECIFICATIONS ...............................................................................................................................................3
SERVICE POINTS..............................................................................................................................................4
ADJUSTMENTS & MEASUREMENT ..................................................................................................................11
WIRING DIAGRAM.............................................................................................................................................17
PRINTED CIRCUIT BOARD..............................................................................................................................21
CIRCUIT DIAGRAM............................................................................................................................................43
BLOCK DIAGRAM ..............................................................................................................................................79
EXPLODED VIEW ..............................................................................................................................................83
REPLACEMENT PARTS LIST...........................................................................................................................87
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
SERVICE MANUAL
MANUEL D'ENTRETIEN
WARTUNGSHANDBUCH
MINI COMPONENT HI-FI SYSTEM
OCTOBER 2000
CONTENTS
SM0104
HCUR700UC
HCUR700E
HCUR700EBS
HCUR700W
Data
contained
within
this
manual is subject to alteration for
improvement.
Les données fournies dans le présent
manuel d'entretien peuvent faire l'objet
de modifications en vue de perfectionner
le produit.
Die
in
diesem
Wartungshandbuch
enthaltenen Spezifikationen können sich
zwecks Verbesserungen ändern.
Service
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Summary of Contents for Hitachi HCUR700UC

  • Page 1: Table Of Contents

    SM0104 HCUR700UC HCUR700E HCUR700EBS HCUR700W SERVICE MANUAL MANUEL D'ENTRETIEN WARTUNGSHANDBUCH CAUTION: Before servicing this chassis, it is important that the service technician read the “Safety Precautions” and “Product Safety Notices” in this service manual. Data contained within this Service manual is subject to alteration for improvement.
  • Page 2 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 in the circuit diagram and printed wiring board.

  • Page 3: Specifications

    HCU-R700 S P E C I F I C AT I O N S • AV SURROUND RECEIVER SECTION (HTA-R150) Reception frequency band : UC FM: 87.5 ~ 108.0 MHz (100 kHz step) AM: 520 ~ 1710 kHz (10 kHz step) E, EBS FM: 87.50 ~ 108.00 MHz (50 kHz step) AM: 522 ~ 1611 kHz (9 kHz step) FM: 87.50 MHz - 108.00 MHz (50 kHz step)

  • Page 4: Service Points

    HCU-R700 S E R V I C E P O I N T S A V S U R R O U N D R E C E I V E R ( H T A - R 1 5 0 ) •...
  • Page 5 HCU-R700 3. Removal for Rear Panel (1) Remove 20 scr ews 7 . Fig. 5 4. Removal of Power Transformer (1) Remove the 4 s crews 8 . (2) Remove Connec tor I to K . Fig. 6 – 5 –...
  • Page 6 HCU-R700 5. Removal of P.W.B. Board. (1) Remove 1 scr ew 9 and 1 screw 1 0 . (2) Remove 2 scre w 1 1 . (3) Remove 5 scre ws 1 2 from the bottom of chassis. (4) Remove 2 pieces of P.W.B. holder from the bottom chassis.
  • Page 7 HCU-R700 6. Removal of Front P.W.B. Board. (1) Pull the Volume knob away, and remove the nut. (2) Pull out 2 Bass/Treble knobs and remove the nuts. (3) Remove the Function knob. (4) Remove 9 scre ws 1 3 . Bass/Treble knob Volume knob Fig.
  • Page 8 HCU-R700 D V D / C D / V I D E O C D P L A Y E R ( H D V - R 1 0 0 ) • 1. Removal of Top Cover (1) Remove 2 screw s 1 fro m both side. (2) Remove 4 scr ews 2 from the rea r panel.
  • Page 9 HCU-R700 3. Removal of Rear Panel (1) Remove 6 s crews 5 . Fig. 4 4. Removal of Main P.W.B. Board (1) Remove 4 sc rews 6 . (2) Remove Connector C and D. Main P.W.B Board Fig. 5 5. Removal of Power Supply Board (1) Remove 4 scre ws 7 .
  • Page 10 HCU-R700 6. Removal of Deck Mechanism Assy (1) Remove 4 screws 8 to rele ase the mechanism cover. (2) Remove 4 scr ews 9 . Fig. 7 Fig. 8 7. Removal of Front P.W.B. Board (1) Remove away the Front Metal. (2) Pull out the Enter Button.
  • Page 11 HCU-R700 I O P M E A S U R E M E N T M E T H O D When measuring Laser drive current (Iop), playback the discs (CD, DVD) described below, measure Iop for CD Laser and DVD Laser by the test point (LD1 - LD4) on the SERVO P.W.B.
  • Page 12 HCU-R700 C H E C K I N G T H E WAV E F O R M S To check the waveforms on the SERVO P.W.B., the GND (–) probe of the Osilloscope to “ ref” point. NOTES MEASURING DISC : DVD / DVDT-S01 CD / TCD-784A (It is better to use wires for extending between the probe and test points.) •...
  • Page 13 HCU-R700 W A V E F O R M S DVD PLAY DVD PLAY(INNER) DVD PLAY DVD PLAY DVD PLAY DVD PLAY (INNER) 10 DMO 6 TEI 1 HF(RFI) 11 FG 7 TRO 8 TR+ 12 A3 9 TR– 50mV 50nS CH1: 500mV CH2 : 100mV...
  • Page 14 HCU-R700 T R O U B L E S H O O T I N G No Power (Display tube and LED do not light up) ¬ Check the Connector as follows • Power unit ass’y : ∅ [PG001, CN2, CN052, CN101, CN602] Insert the Connector DVD Player initialization should be performed when •...
  • Page 15 HCU-R700 A D J U S T M E N T S Adjusting and Checking the Electrical Section Measuring instruments needed for the adjustments (1) Oscilloscope (2) DC voltmeter (3) Adjustment screwdriver (4) Test disc • TDV-540 Title2 Tr No. 1 Adjustment of + 5V Voltage Adjust R502 so that the voltage of PG101 Pin6 (+5V) should be within Limit of 5.0±0.05V.
  • Page 16 HCU-R700 M E M O – 16 –...

  • Page 17: Wiring Diagram

    HCU-R700 W I R I N G D I A G R A M • A V S U R R O U N D R E C E I V E R ( H T A - R 1 5 0 ) ♦...
  • Page 18 HCU-R700 W I R I N G D I A G R A M • D V D / C D / V I D E O C D P L A Y E R ( H D V - R 1 0 0 ) AC CORD MAIN PWB PG3A...
  • Page 19 HCU-R700 P R I N T E D W I R I N G B O A R D • A V S U R R O U N D R E C E I V E R ( H T A - R 1 5 0 ) Component Side Soldering Side FL PWB...
  • Page 20 HCU-R700 Component Side DSP PWB DIGITAL PWB – 22 –...
  • Page 21 HCU-R700 Soldering Side DSP PWB DIGITAL PWB – 23 –...
  • Page 22 HCU-R700 Component Side Soldering Side E.VOL PWB – 24 –...
  • Page 23 HCU-R700 Component Side Soldering Side VIDEO PWB – 25 –...
  • Page 24 HCU-R700 Component Side TU PWB FUNCTION PWB – 26 –...
  • Page 25 HCU-R700 Soldering Side TU PWB FUNCTION PWB – 27 –...
  • Page 26 HCU-R700 Component Side SP EXT PWB SUPPLY PWB – 28 –...
  • Page 27 HCU-R700 Soldering Side SP EXT PWB SUPPLY PWB – 29 –...
  • Page 28 HCU-R700 Component Side AC OUTLET (E) PWB AC OUTLET (UC) PWB RECT PWB – 30 –...
  • Page 29 HCU-R700 Soldering Side AC OUTLET (E) PWB AC OUTLET (UC) PWB RECT PWB – 31 –...
  • Page 30 HCU-R700 Component Side POWER PWB TRANS (1) PWB TRANS (2) PWB – 32 –...
  • Page 31 HCU-R700 Soldering Side POWER PWB TRANS (1) PWB TRANS (2) PWB – 33 –...
  • Page 32 HCU-R700 Component Side VOL SEL PWB Soldering Side VOL SEL PWB – 34 –...
  • Page 33 HCU-R700 P R I N T E D W I R I N G B O A R D • DVD/CD/VIDEO CD PLAYER (HDV-R100) Component Side MAIN PWB – 35 –...
  • Page 34 HCU-R700 Soldering Side MAIN PWB – 36 –...
  • Page 35 HCU-R700 Component Side Soldering Side SUPPLY PWB – 37 –...
  • Page 36 HCU-R700 Component Side FL PWB – 35 –...
  • Page 37 HCU-R700 Soldering Side FL PWB – 36 –...
  • Page 38 HCU-R700 Component Side – 37 –...
  • Page 39 HCU-R700 Soldering Side – 38 –...
  • Page 40 HCU-R700 – 42 –...

  • Page 41: Circuit Diagram

    HCU-R700 CIRCUIT DIAGRAM DSP Circuit — 43 — — 44 — — 45 —...
  • Page 42 HCU-R700 CIRCUIT DIAGRAM PO/FL Circuit — 46 — — 47 — — 48 —...
  • Page 43 HCU-R700 CIRCUIT DIAGRAM TU-MAIN Circuit — 49 — — 50 — — 51 —...
  • Page 44 HCU-R700 CIRCUIT DIAGRAM PO/FL Circuit (FL DISP/TONE BLOCK) — 52 — — 53 — — 54 —...
  • Page 45 HCU-R700 CIRCUIT DIAGRAM MAIN Circuit — 55 — — 56 — — 57 —...
  • Page 46 HCU-R700 C I R C U I T D I A G R A M S E R V O C i r c u i t ( 1 ) TDSP2H.sch TFEP2H.sch DPDB MGND MGND DPDB DGND DGND RFCT RFCT DFCTN CD/DVD CD/DVD...
  • Page 47 HCU-R700 CIRCUIT DIAGRAM SERVO Circuit (2) D+5V D+5V D+3.3V A+3.3V PIN SHORT 104Z DGND BA033FP FBM2125HM330-B A+5V PST600E 1SS355 PIN SHORT 104Z 104Z 104Z AGND EC20 1SS355 FBM2125HM330-B 104Z 10V220 M+5V 104Z PIN SHORT PIN SHORT 104Z FBM2125HM330-B +12V AUGND BC10 RESET R188...
  • Page 48 HCU-R700 CIRCUIT DIAGRAM SERVO Circuit (3) M+5V 223K P-HIGH R142 104Z P-LOW BC38 R107 332K VREF R183 A+5V R136 R110 +1.65V D+3.3V D+5V R184 R141 R108 153K CC28 R143 PESV 104Z LPFN OPEN BC44 104Z BC34 BA5952AFP PLCK BC36 EC28 104Z OPEN R111...
  • Page 49 HCU-R700 C I R C U I T D I A G R A M S E R V O C i r c u i t ( 4 ) D+5V R186 A+3.3V +EC1 TEST SW R106 DTA144TKA 6.3V22 S6B-PH-SM3-TB DTA144TKA R104 DSPCSN...
  • Page 50 HCU-R700 C I R C U I T D I A G R A M S E R V O C i r c u i t ( 5 ) R113 A+3.3V BC58 104Z R114 OPEN A+5V EC13 6.3V22 DPDB FBM2125HM330-B DPDB 103K...
  • Page 51 HCU-R700 CIRCUIT DIAGRAM FL SUPPLY Circuit — 73 — — 74 — — 75 —...
  • Page 52 HCU-R700 — 76 — — 77 — — 78 —...

  • Page 53: Block Diagram

    HCU-R700 B L O C K D I A G R A M • A V S U R R O U N D R E C E I V E R ( H T A - R 1 5 0 ) JK401~JK40 IC401 LC78211...
  • Page 54 HCU-R700 B L O C K D I A G R A M • D V D / C D / V I D E O C D P L A Y E R ( H D V - R 1 0 0 ) DVD DRIVE MECHA UNI T POWER SUPPLY UNIT OPTICAL DISC...

  • Page 55: Exploded View

    HCU-R700 E X P L O D E D V I E W S A V S U R R O U N D R E C E I V E R ( H T A - R 1 5 0 ) •...
  • Page 56 HCU-R700 E X P L O D E D V I E W S D V D / C D / V I D E O C D P L A Y E R ( H D V - R 1 0 0 ) •...
  • Page 57 THE UPDATED PARTS LIST FOR THIS MODEL IS AVAILABLE ON ESTA...
  • Page 58 Fax: +46 (0) 8 562 711 13 Tel: +39 02 38073415 Servizio Clienti Email: [email protected] Fax: +39 02 48786381/2 Email: [email protected] HITACHI EUROPE S.A.S HITACHI EUROPE LTD (Norway) AB Lyon Office STRANDVEIEN 18 B.P. 45, 69671 BRON CEDEX 1366 Lysaker FRANCE...

This manual is also suitable for:

Hcur700eHcur700wHcur700ebs