TK
No.9001E
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
DVD PLAYER . CD RECORDER
SERVICE MANUAL
2000
March
Digital Media Products Division, Tokai
DV-W1E
DV-W1E(UK)
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts have special safety-related characteristics. These are often not evident from visual
inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for a
higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in this
Service Manual. Electrical components having such features are identified by marking with a
on the schematics and
the parts list in this Service Manual. The use of a substitute replacement component which does not have the same
safety characteristics as the HITACHI recommended replacement one, shown in the parts list in this Service Manual, may
create shock, fire, or other hazards. Product safety is continuously under review and new instructions are issued from
time to time. For the latest information, always consult the current HITACHI Service Manual. A subscription to, or
additional copies for, HITACHI Service Manual may be obtained at a nominal charge from HITACHI SALES
CORPORATION.
LASER RADIATION
ENGLISH
Notes When Using Service Manual
The following shows the contents to be noted when using service manual:
1. Value units used in parts list
This table shows locations of each part on circuit board
diagrams. The locations are indicated using the guide
scales on the external lines of diagrams.
1) One diagram indicated for each board
The values, dielectric strength (power capacitance) and
tolerances of the resistors (excluding variable resistors)
and capacitors are indicated in the schematic diagrams
using abbreviations.
[Resistors]
Certain symbols are indicated below for value units of
resistors, capacitors and coils in parts list. When you read
them note the following regular indications:
Indication in list
Regular indication
KOHM ........................................... k
UF ................................................. µF
PF ................................................. pF
UH ................................................. µH
MH ............................................... mH
Parts
Resistor
Capacitor
Coil
2) Two diagrams indicated for each board
2. Values in schematic diagrams
Item
Value
Tolerance
Power
capacitance
Indication
No indication ...................................
K ................................................... k
M .................................................. M
No indication ............................. ±5%
(All tolerances other than ±5% are
indicated in schematic diagrams)
No indication ............................ 1/8W
(1/16W for leadless resistors without
indication)
All capacitances other than the above
are indicated in schematic diagrams.
[Capacitors]
Item
Value
Dielectric
strength
Indication
No indication ................................. µF
P ................................................... pF
No indication .............................. 50V
(All dielectric strengths other than 50V
are indicated in schematic diagrams)
Item
Value
Indication
µ .................................................... µH
m .................................................. mH
[Coils]
3. Identifications of sides A/B in
circuit board diagrams
1) Board having a pattern on one side and parts on
both sides.
Side A:
Shows discrete parts, viewed from the
pattern side.
Side B:
Shows leadless parts, viewed from the
pattern side.
2) Board having patterns on both sides and parts on
both sides.
Side A:
Shows parts and patterns which can be
seen when the case is opened.
Side B:
Shows parts and the pattern on the back of
side A.
4. Table for indexing locations of parts
Parts
Location
2
A
Symbol
No.
IC
IC1201
Type of part
Zone "A" on board diagram
Circuit No.
Zone "2" on board diagram
Parts
Location
A - 2
A
Symbol
No.
IC
IC1201
Zone "2" on board
diagram
A: Shows side A
B: Shows side B
Zone "A" on board
diagram
Type of part
Circuit No.
CONTENTS
CHAPTER 1
GENERAL INFORMATION
1. Specifications ............................................................. 1-1
2. Comparison with Previous Model ............................... 1-2
3. Troubleshooting .......................................................... 1-4
3-1. VIDEO CIRCUIT .................................................... 1-4
3-2. AUDIO CIRCUIT .................................................... 1-5
3-3. RECORDER AUDIO CIRCUIT .............................. 1-6
4. Instructions on Use ..................................................... 1-7
CHAPTER 2
DISASSEMBLY
1. Before Starting Disassembly ...................................... 2-1
2. Disassembly Method .................................................. 2-1
Parts Hierarchy Chart ................................................. 2-1
Disassembly Procedure Diagrams ............................. 2-2
2-1. Side cover(L),(R) and Top cover ........................... 2-2
2-2. Rear panel ............................................................. 2-2
2-3. JAK and REG board .............................................. 2-3
2-4. Front cover, IF, FLHP,
SW-DVD and SW-CDR board .............. 2-3
2-5. DVD-ROM and DEC board .................................... 2-4
2-6. CD-R and Bottom cover ........................................ 2-4
CHAPTER 3
EXPLODED VIEW
1. CABINET SECTION ................................................... 3-1
CHAPTER 4
REPLACEMENT PARTS LIST
1. MECHANICAL PARTS LIST ...................................... 4-1
2. ELECTRICAL PARTS LIST ........................................ 4-1
SCHEMATIC, CIRCUIT BOARD
CHAPTER 5
AND BLOCK DIAGRAMS
CONNECTION DIAGRAM .............................................. 5-1
SCHEMATIC/CIRCUIT
BOARD
LCD DISPLAY[FLPH] ......................................... 5-3 / 5-25
DVD SWITCH[SW-DVD] ..................................... 5-5 / 5-20
CDR SWITCH[SW-CDR] .................................... 5-5 / 5-20
INTERFACE[IF] .................................................. 5-6 / 5-23
REAR JACK[JAK] ............................................... 5-7 / 5-21
REGURATOR[REG] ........................................... 5-9 / 5-23
DECK-1[DEC] .................................................. 5-11 / 5-16
DECK-2[DEC] .................................................. 5-13 / 5-16
BLOCK DIAGRAM ........................................................ 5-27
5
. Self Diagnosis Function. ............................................. 1-9
E1 - 1
CHAPTER 1
GENERAL INFORMATION
General
AV connector output terminal
S Video output terminal
Video output
Audio output
Audio input
Other terminals
Accessories
1. Specifications
Specification and exterior aspect of the model may be changed for improvements without advance notice.
Operating Laser ....................... Semi-conductor laser: Wave length 650nm (DVD)
................................................................................................ 780nm (CD,VCD)
Power supply ................................................................................... AC230V, 50Hz
Power consumption ......................................................................................... 27W
Weight ............................................................................................................ 4.8kg
Overall size .................................................................... 435(W)×310(D)×81(H)mm
Allowable operating temperature ........................................................ +5°C~+35°C
Allowable operating humidity ........................................ 15~75%(no condensation)
AV connector output ..................................................................... 21-pin connector
This connector provides the video and signals for connection to a colour video TV
monitor (or TV set) which has a"AV CONNECTOR" terminal.
Y output level ................................................................................. 1 Vp-p (75 ohm)
C output level
NTSC ............................................................ 0.286 Vp-p(75 ohm)
PAL .................................................................. 0.3 Vp-p (75 ohm)
Output terminal ........................................................................................ S terminal
Output level .................................... 1 Vp-p (synchronous when loaded at 75 ohm)
Output terminal ............................................................................................ pin jack
OUTPUT level ............................................................... 200m Vrms (1kHz, -20dB)
Mixed 2ch OUTPUT ............................................................ 1 system (pin jack × 2)
5.1 ch OUTPUT ................................................................... 1 system (pin jack × 6)
Sound characteristics
Input level ........................................................................ 200mVrms (1kHz,-20dB)
1 system (pin jack × 2)
Digital Audio output Optical/Coaxial
Coaxial terminal ............. 1
(DTS/AC-3/MPEG2, LPCM, OFF commutable)
Optical connector ........... 1
Digital Audio input optical/coaxial
Coaxial terminal ............. 1
(DTS/AC-3/MPEG2, LPCM, OFF commutable)
Optical connector ........... 1
Remote control unit ............................................................................................... 1
signal "AA" batteries .............................................................................................. 2
AV cord .................................................................................................................. 1
Ferrite core ............................................................................................................ 1
Frequency characteristics
CD: 4Hz~20kHz (EIAJ)
DVD: 4Hz~22kHz (48k sampling)
4Hz~44kHz (96k sampling)
SN ratio
110dB
Dynamic range
100dB
Total harmonic distorion rate
0.003%
Wow fluttertics
Measurement limit less than
(±0.001% W.PEAK) (EIAJ)