JVC HR-J282EU, HR-J283EU, HR-J285EU, HR-J290EU, HR-J293EU Service Manual
...
SERVICE MANUAL
VIDEO CASSETTE RECORDER
HR-J282EU, HR-J283EU, HR-J285EU,
HR-J290EU, HR-J293EU, HR-J295EK, HR-J295MS,
HR-J582EU, HR-J583EU, HR-J585EU,
HR-J590EU, HR-J593EU, HR-J595EK, HR-J595MS
SPECIFICATIONS
GENERAL
Power : 200 V – 240 V , 50 Hz/60 Hz
Power consumption
Power on : Approx. 12 W
Standby mode : 3.0 W
Video Head system
HR-J590/J593/
J599EU
HR-J290/J293EU : Rotary two-head helical scan system
Tape speed
(SP) : 23.39 mm/sec
(LP)* : 11.69 mm/sec
* HR-J590/J593/J599EU only
Tape format : Tape width 1/2"
Maximum recording time
(SP) : 240 min. with E-240 video cassette
(LP)* : 480 min. with E-240 video cassette
* HR-J590/J593/J599EU only
Rewind time : Approx. 180 sec. with E-180 cassette
Dimensions (W x H x D) : 360 mm x 94.5 mm x 270 mm
Weight : 4.0 kg
Operating temperature : 5°C to 35°C
Operating humidity : Less than 80 %
Timer : 24 hours display type
VIDEO
Signal system : PAL-type colour signal and CCIR
Recording Format : PAL/MESECAM
RF reception : PAL (B/G)/SECAM (B/G)
RF OUT : PAL G
RF modulator : UHF channels 22 – 68 (Adjustable)
Input level : VIDEO IN (SCART type)
Output level : VIDEO OUT (SCART type)
Signal-to-noise ratio : More than 43 dBm
(The specifications shown pertain specifically to the model HR-J290EU, J293EU , J590EU and J593EU.)
AUD IO
: DA4 (Double Azimuth) head helical
scan system
(12.7 mm high density VHS tape)
monochrome signal, 625 lines
50 fields
1.0 Vp-p, 75 ohm, unbalanced
1.0 Vp-p, 75 ohm, unbalanced
Input level : AUDIO IN (SCART type)
Output level
HR-J590/J593/
J599EU
HR-J290/J293EU : AUDIO OUT (SCART type)
Audio track
HR-J590/J593/
J599EU
HR-J290/J293EU : Mono track
Audio frequency response
Normal audio : 100 Hz to 10,000 Hz
Hi-Fi audio* : 20 Hz to 20,000 Hz
* HR-J590/J593/J599EU only
Audio signal to noise ratio [HR-J590/J593/J599EU only]
Hi-Fi audio : More than 70 dB (JIS A filter)
Audio dynamic range [HR-J590/J593/J599EU only]
Hi-Fi audio : More than 85 dB (JIS A filter)
ACCESSORIES
Provided accessories : RF cable,
Specifications shown are for SP mode unless specified otherwise.
E. & O.E. Design and specifications subject to change without
notice.
–6.0 dBm, more than 10 kΩ
: AUDIO OUT (SCART, RCA type)
–6.0 dBm, less than 1 kΩ
–6.0 dBm, less than 1 kΩ
: Mono track and Hi-Fi track
(–6/+3 dBm)
(–3/+3 dBm)
Infrared remote control unit,
“R3” battery x 2
V15
This service manual is printed on 100% recycled paper.
COPYRIGHT © 2002 VICTOR COMPANY OF JAPAN, LTD
No.82915
June 2002
TABLE OF CONTENTS
SECTION 1
SUMMARY
KEY TO ABBREVIATIONS . . . . . . . . . . . . . . . . 1-1
IMPORTANT SAFETY PRECAUTIONS
PROPOSAL FOR APPLYING SHORT
PROTECTION . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
SERVICE NOTICE ON REPLACING EEPROM . .1-5
SERVICE INFORMATION FOR EEPROM
IC SETTING . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . 1-7
. . . . . . . . . . 1- 2
SECTION 2
CABINET & MAIN CHASSIS
SERVICE METHOD . . . . . . . . . . . . . . . . . . . . . 2-1
Electrical Part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
EXPLODED VIEWS . . . . . . . . . . . . . . . . . . . . . . 2-2
1. Cabinet & Main Frame Section . . . . . . . . . . . . . 2-2
2. Packing & Accessory Section . . . . . . . . . . . . . . 2-3
BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . .3-21
1. Power Block Diagram . . . . . . . . . . . . . . . . . . . .3-21
2. Tuner/IF, NICAM & A2 Block Diagram . . . . . . . .3-23
3. VPS Block Diagram . . . . . . . . . . . . . . . . . . . . . .3-24
4. Y/C Block Diagram . . . . . . . . . . . . . . . . . . . . . .3-25
5. Hi-Fi Block Diagram . . . . . . . . . . . . . . . . . . . . .3-26
6. System Block Diagram . . . . . . . . . . . . . . . . . . .3-27
CIRCUIT DIAGRAMS . . . . . . . . . . . . . . . . . . . .3-29
1. Power Circuit Diagram . . . . . . . . . . . . . . . . . . . .3-29
2. Tuner, NICAM/A2 Circuit Diagram . . . . . . . . . . .3-31
3. A/V, SECAM, VPS Circuit Diagram . . . . . . . . . .3-33
4. System Circuit Diagram . . . . . . . . . . . . . . . . . . .3-35
5. Hi-Fi, SCART Circuit Diagram . . . . . . . . . . . . . .3-39
• CIRCUIT VOLTAGE CHART . . . . . . . . . . . . . . . .3-41
PRINTED CIRCUIT BOARD DIAGRAMS . . . . .3-45
1. MAIN P.C.Board . . . . . . . . . . . . . . . . . . . . . . . .3-45
SECTION 4
MECHANISM
SECTION 3
ELECTRICAL
ELECTRICAL ADJUSTMENT POINTS
ARRANGEMENT . . . . . . . . . . . . . . . . . . . . . . . .3-1
ELECTRICAL ADJUSTMENT PROCEDURES . . 3-2
1. Servo Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
ELECTRICAL TROUBLESHOOTING GUIDE . . . 3-4
1. Power Circuit(SMPS) . . . . . . . . . . . . . . . . . . . . . 3-4
2. Servo Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
3. System & Front Panel Circuit . . . . . . . . . . . . . . .3-10
4. Y/C Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-12
5. Tuner/IF Circuit . . . . . . . . . . . . . . . . . . . . . . . . .3-16
6. Hi-Fi Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-19
NOTE) The table of contents for this section is edited
NOTE) separately.
SECTION 5
REPLACEMENT PARTS LIST
5-1 EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . .5-1
5-2 REPLACEMENT PARTS LIST
.
. . . . . . . . . . . . . . . . .5 - 4
SECTION1 SUMMARY
KEY TO ABBREVIATIONS
A AC :Alternating Current
B B :Base
C C :Capacitor, Chroma, Collector
D D :Drum, Digital, Diode, Drain
E E :Emitter
F F :Fuse
G GEN :Generator
H H :High, Horizontal
I IC :Integrated Circuit
L L :Low, Left, Coil
ACC :Automatic Color Control
ACSS :Automatic Channel Setting System
ADJ :Adjust
A/E :Audio Erase
AFC :Automatic Frequency Control
AFT :Automatic Fine Tuning
AGC :Automatic Gain Control
A.H.SW :Audio Head Switch
ALC :Automatic Level Control
AM :Amplitude Modulation
AMP :Amplifier
ANT :Antenna
APC :Automatic Phase Control
ASS’Y :Assembly
AUX :Auxiliary
BGP :Burst Gate Pulse
BPF :Bandpass Filter
BS :Brodcasting Satellite
BW or B/W :Black and White
CAN :Cancel
CAP :Capstan
CAP.BRK :Capstan Brake
CAP.RVS :Capstan Reverse
CATV :Cable Television
CBA :Circuit Board Assembly
CCD :Charge Coupled Device
C.CTL :Chro Control, Capstan Control
CFG :Capstan Frequency Generator
CHROMA :Chrominance
CNR :Chroma Noise Redution
COMB :Combination
COMP :Comparator
CONV :Converter
C.ROT SW :Color Rotary Switch
CS :Chip Selcet
C.SYNC :Composite Synchronization
CTL DIV :Control Divide
CUR :Current
CYL :Cylinder
D.ADJ :Drum Adjust
DC :Direct Current
D.CTL :Drum Control
DEMOD :Demodulator
DET :Detector
DEV :Deviation
DHP :Double High Pass
DIGITRON :Digital Display Tube
DL :Delay line
DOC :Drop Out Compensator
DUB :Dubbing
D.V SYNC :Dummy Vertical Synchronization
EE :Electric to Eletric
EMPH :Emphasis
ENA :Enable
ENV :Envelope
EP :Extended Play
EQ :Equalizer
EXP :Expander
FB :Feed Back
FBC :Feed Back Clamp
FE :Full Erase
FG :Frequency Generator
FL :Filter
FM :Frequency Modulation
F/R :Front/Rear
FS :Frequency Synthesizer
FSC :Subcarrier Frequency
F/V :Frequency Voltage
IF :Intermediate Frequency
INS :Insert
LD :LED
LD VTG CTL
LECHA :Letter Character
L.M :Level Meter
LP :Long Play
Comb Filter
Composite
Compensation
:Loading Voltage Control
M MAX :Maximum
N NR :Noise Reduction
O OSC :Oscillator
P PB :Playback
Q Q :Transistor
R R :Resistor, Right
S S :Serial
T T :Coil
U UHF :Ultra High Frequency
V V :Volt, Vertical
W W :Watt
X X-TAL :Crystal
Y Y/C :Luminance/Chrominance
Z ZD :Zener Diode
LPF :Low Pass Filter
MD :Modulator
MECHA.CTL
MIC :Microphone
MIN :Minimum
MIX :Mixer, Mixing
M.M. :Monostable, Multivibrator
MMV :Mono Multi Vibrator
MOD :Modulation, Modulator
MODEM :Modulator-Demodulator
MPX :Multiplex
OSD :On Screen Display
PCB :Printed Circuit Board
P.CTL :Power Control
PRE-AMP :Preamplifier
P.F :Power Failure
PG :Pulse Generator
PLL :Phase Locked Loop
PREM.DET :Premire Detect
P.P :Peak-to-Peak
PS :Phase Shift
PWM :Pulse Width Modulation
PWR CTL :Power Control
QH :Quasi Horizontal
QSR :Quick Setting Record
QTR :Quick Timer Record
QV :Quasi Vertical
RE(or RC) :Remocon, Receiver
REC :Recording
REC S ‘H’ :Record Start ‘Hight’
REF :Reference
REG :Regulated, Regulator
REMOCON :Remote Control(unit)
RF :Radio Frequency
R/P :Record/Playback
RTC :Reel Time Counter
S.ACCEL :Slow Accel
SAOP :Second Audio Program
SC :Scart, Simulcast
S.DET :Secam Detect
SH :Shift
SHARP :Sharpness
SIF :Sound Intermediate Frequency
SLD :Side Locking
S/N :Signal to Noise Ratio
SP :Standard Play
ST :Stereo
SUB :Subtract, Subcarrier
SW or S/W :Switch
SYNC :Synchronization
SYSCON :System Control
TP :Test Point
TR :Transistor
TRK :Tracking
TRANS :Transformer
TU :Tuner, Take-up
UNREG :Unregulated
VA :Always Voltage
VCO :Voltage Controlled Oscillator
VGC :Voltage Gain Control
VHF :Very High Frequency
V.H.SW :Video Head Switch
VISS :VHS Index Search
VPS :Video Program System
VR :Variable Resistor or Volume
V-SYNC :Vertical Synchronization
VTG :Voltage
VV :Voltage to Voltage
VXO :Voltage X-tal Oscillator
WHT :White
W/O :With out
YNR :Luminance Noise Reduction
:Mechanism Control
1-1
Important Safety Precautions
cut close to connector
Prior to shipment from the factory, JVC products are strictly inspected to conform with the recognized product safety and electrical codes
of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the
following precautions when a set is being serviced.
v
Precautions during Servicing
1. Locations requiring special caution are denoted by labels and
inscriptions on the cabinet, chassis and certain parts of the
product. When performing service, be sure to read and comply with these and other cautionary notices appearing in the
operation and service manuals.
2. Parts identified by the symbol and shaded ( ) parts are
critical for safety.
Replace only with specified part numbers.
Note: Parts in this category also include those specified to com-
ply with X-ray emission standards for products using
cathode ray tubes and those specified for compliance
with various regulations regarding spurious radiation
emission.
3. Fuse replacement caution notice.
Caution for continued protection against fire hazard.
Replace only with same type and rated fuse(s) as specified.
4. Use specified internal wiring. Note especially:
1) Wires covered with PVC tubing
2) Double insulated wires
3) High voltage leads
5. Use specified insulating materials for hazardous live parts.
Note especially:
1) Insulation Tape 3) Spacers 5) Barrier
2) PVC tubing 4) Insulation sheets for transistors
6. When replacing AC primary side components (transformers,
power cords, noise blocking capacitors, etc.) wrap ends of
wires securely about the terminals before soldering.
12. Crimp type wire connector
In such cases as when replacing the power transformer in sets
where the connections between the power cord and power
transformer primary lead wires are performed using crimp type
connectors, if replacing the connectors is unavoidable, in order to prevent safety hazards, perform carefully and precisely
according to the following steps.
1) Connector part number : E03830-001
2) Required tool : Connector crimping tool of the proper type
which will not damage insulated parts.
3) Replacement procedure
(1) Remove the old connector by cutting the wires at a point
close to the connector.
Important : Do not reuse a connector (discard it).
Fig.3
(2) Strip about 15 mm of the insulation from the ends of
the wires. If the wires are stranded, twist the strands to
avoid frayed conductors.
15 mm
Fig.1
7. Observe that wires do not contact heat producing parts
(heatsinks, oxide metal film resistors, fusible resistors, etc.)
8. Check that replaced wires do not contact sharp edged or
pointed parts.
9. When a power cord has been replaced, check that 10-15 kg of
force in any direction will not loosen it.
Power cord
Fig.2
10. Also check areas surrounding repaired locations.
11. Products using cathode ray tubes (CRTs)
In regard to such products, the cathode ray tubes themselves,
the high voltage circuits, and related circuits are specified for
compliance with recognized codes pertaining to X-ray emission.
Consequently, when servicing these products, replace the cathode ray tubes and other parts with only the specified parts.
Under no circumstances attempt to modify these circuits.
Unauthorized modification can increase the high voltage value
and cause X-ray emission from the cathode ray tube.
Fig.4
(3) Align the lengths of the wires to be connected. Insert
the wires fully into the connector.
Metal sleeve
Connector
Fig.5
(4) As shown in Fig.6, use the crimping tool to crimp the
metal sleeve at the center position. Be sure to crimp fully
to the complete closure of the tool.
1.25
2.0
5.5
Fig.6
(5) Check the four points noted in Fig.7.
Not easily pulled free
Wire insulation recessed
more than 4 mm
Fig.7
Crimping tool
Crimped at approx. center
of metal sleeve
Conductors extended
1
S40888-01
v
Safety Check after Servicing
Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been
returned to original positions, Afterwards, perform the following tests and confirm the specified values in order to verify compliance with safety standards.
1. Insulation resistance test
Confirm the specified insulation resistance or greater between power cord plug prongs and
externally exposed parts of the set (RF terminals, antenna terminals, video and audio input
and output terminals, microphone jacks, earphone jacks, etc.). See table 1 below.
2. Dielectric strength test
Confirm specified dielectric strength or greater between power cord plug prongs and exposed
accessible parts of the set (RF terminals, antenna terminals, video and audio input and output
terminals, microphone jacks, earphone jacks, etc.). See table 1 below.
3. Clearance distance
When replacing primary circuit components, confirm specified clearance distance (d), (d’) between soldered terminals, and between terminals and surrounding metallic parts. See table 1
below.
Chassis
Fig. 8
4. Leakage current test
Confirm specified or lower leakage current between earth ground/power cord plug prongs
and externally exposed accessible parts (RF terminals, antenna terminals, video and audio
input and output terminals, microphone jacks, earphone jacks, etc.).
Measuring Method : (Power ON)
Insert load Z between earth ground/power cord plug prongs and externally exposed accessible parts. Use an AC voltmeter to measure across both terminals of load Z. See figure 9 and
following table 2.
5. Grounding (Class 1 model only)
Confirm specified or lower grounding impedance between earth pin in AC inlet and externally exposed accessible parts (Video in,
Video out, Audio in, Audio out or Fixing screw etc.).
Measuring Method:
Connect milli ohm meter between earth pin in AC inlet and exposed accessible parts. See figure 10 and grounding specifications.
AC inlet
Earth pin
Exposed accessible part
Grounding Specifications
Region
USA & Canada
Europe & Australia
Externally
exposed
accessible part
Grounding Impedance (Z)
d
d'
≤
Z 0.1 ohm
≤
Z 0.5 ohm
Power cord,
primary wire
Z
V
Fig. 9
ab
c
Milli ohm meter
Fig. 10
AC Line Voltage
100 V
100 to 240 V
110 to 130 V
110 to 130 V
200 to 240 V
100 V
110 to 130 V
110 to 130 V
220 to 240 V
Note: These tables are unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality.
Region
Japan
USA & Canada
Europe & Australia R 10 MΩ/500 V DC
Region Load Z
Japan
USA & Canada
Europe & Australia
Table 2 Leakage current specifications for each region
Insulation Resistance (R)
≤
R 1 MΩ/500 V DC
≥≥
1 MΩ R 12 MΩ/500 V DC
≤
Table 1 Specifications for each region
1 kΩ
0.15 µF
1.5 kΩ
2 kΩ
50 kΩ
Dielectric Strength
AC 1 kV 1 minute
AC 1.5 kV 1 miute
AC 1 kV 1 minute
AC 3 kV 1 minute
AC 1.5 kV 1 minute
i 1 mA rms Exposed accessible parts
i 0.5 mA rms
i 0.7 mA peak
i 2 mA dc
i 0.7 mA peak
i 2 mA dc
2
≤
≤
≤
≤
≤
≤
(Class 2)
(Class 1)
Clearance Distance (d), (d')
≤
d, d' 3 mm
≤
d, d' 4 mm
≤
d, d' 3.2 mm
≤
d 4 mm
≤
d' 8 mm (Power cord)
≤
d' 6 mm (Primary wire)
a, b, cLeakage Current (i)AC Line Voltage
Exposed accessible parts
Antenna earth terminals
Other terminals
S40888-01
PROPOSAL FOR APPLYING SHORT PROTECTION
IIC BUS
5VT SW
POWER
CONTROL
MASTER
TIMER
CONTROL
5VT SW
SLAVE with 5V
SLAVE with 5V
5.3VA
Power Control
Modulator
Hi-Fi IC
NICAM IC
SECAM IC
• The Contents of Examination
As all the IC that is applied to VCR is controlled by IIC, mutual communication, if Vcc of IC is short or open
with detecting ‘Acknowledge’ data of the specific IC according to each power(5V, 5VT) µ-COM gets unable to
detect ‘ACK’ data.
µ-COM regards this case as abnormal one and if it can’t detect ‘ACK’ data for a certain time(3.5 sec) the signal of ‘Power Control’ and ‘Timer Control’ are switched to ‘Low’. As a result POWER Switching
generating heat and fire.
Conception
BLOCK Diagram
TR is kept from
• POWER for each IC
5.2V 5.2VT
5.3VA
• IC to detect ‘ACK’ data is selected as below because IC is different in accordance to region and option
S/ 5V POWER SECAM IC
AVCP IC
TUNER
Timer Control
Series 5VT POWER AVCP IC
P/Y/I 5V POWER Modulator
Series 5VT POWER AVCP IC
*Short protection off mode : DJ01 Diode in
1-4
SERVICE NOTICE ON REPLACING EEPROM
TIMER
AM
REC
VCR
OK
In case that defective EEPROM of PAL models is replaced, to operate these sets from the initial state MP KEY
must be repaired as well before delivering to the customer.
If MP KEY isn’t repaired the setting of RF OUT channel or LANGUAGE might be different from that for custormer’s country.
•MP KEY : In case of PAL VCR if holding the REC button on the front panel and the CLEAR button on the
remote control handset for 5 ~ 7 seconds with power being switch all and no tapes,
OK is displayed at FLD for FLD models and LED becomes on for LED CLOCK models.
This is the state that initializing EEPROM is finished.
(In case of PAL VCP if holding the REC button on the front panel and the MENU button on the
remote control handset for 5 ~ 7 seconds with power being off and no tapes, All the LED DOTs
become on. This is the state that initializing EEPROM is finished.)
•MP KEY's function : MP KEY sets EEPROM's data up to the initial state.
• FLD MODEL:
MP KEY “OK”
• LED CLOCK MODEL:
MP KEY Switch all on a Light
• LED DOT MODEL:
MP KEY Switch all on a Light
1-5
SERVICE INFORMATION FOR EEPROM IC SETTING
EEPROM option code No. setting
MODEL NAME HEX BINARY
HR-J285EU 02 00 00000000
C0 00 00000000
C0 00 00000000
B1 00 00000000
30 00 00000000
48 00 00000000
HR-J290EU E2 00 00000000
HR-J293EU C1 00 00000000
C8 00 00000000
B1 00 00000000
30 00 00000000
48 00 00000000
HR-J585EU 0C 00 00000000
C0 00 00000000
C0 00 00000000
B1 00 00000000
30 00 00000000
48 00 00000000
HR-J590EU/ EC 00 00000000
J593EU C1 00 00000000
C8 00 00000000
B1 00 00000000
30 00 00000000
48 00 00000000
HR-J595EK 2C 00 00000000
C0 00 00000000
C8 00 00000000
B4 00 00000000
00 00 00000000
43 00 00000000
HR-J595MS 6C 00 00000000
C0 00 00000000
48 00 00000000
B0 00 00000000
62 00 00000000
40 00 00000000
HR-J295MS 62 00 00000000
C0 00 00000000
48 00 00000000
B0 00 00000000
62 00 00000000
40 00 00000000
HR-J295EK 02 00 00000000
C0 00 00000000
C8 00 00000000
B4 00 00000000
00 00 00000000
43 00 00000000
HR-J282EU 02 00 00000000
C0 00 00000000
C0 00 00000000
B7 00 00000000
00 00 00000000
50 00 00000000
MODEL NAME HEX BINARY
HR-J283EU 02 00 00000000
C0 00 00000000
C8 00 00000000
B7 00 00000000
00 00 00000000
50 00 00000000
HR-J582EU 0C 00 00000000
C0 00 00000000
C0 00 00000000
B7 00 00000000
00 00 00000000
50 00 00000000
HR-J583EU 0C 00 00000000
C0 00 00000000
C8 00 00000000
B7 00 00000000
00 00 00000000
50 00 00000000
# Remote control Key action
• OK : Now option data write to EEPROM
• MENU : Menu exit
• EDIT : ▲▼ (Option data change from 0~F
Hexadecimal)
• MOVE : ▲▼ (Cursor move for option data
▲
▲
setting)
EEPROM option code No. setting procedure
1. Power Cord plug-in and Power SW on, then
“EEPROM option data setting” screen to the left
will be displayed.
# If not, press the “Child lock” key on the Remote
controller to switch with “CANAL” because the
VCR set has “CANAL IC” inside.
# If your VCR set has “NTSC Line Record”, switch
the VCR set to “AV” mode after inputting the Line
Video signal. If not, the Blue back screen may be
shown in to screen.
2. Refer to option data in the next page and input
the value to the “HEX” field using “EDIT” key
only, and then press the “OK” key on the Remote
controller.
3. Check the basic operation
(Tuner/PB/CUE/REV/AV/REC mode...)
4. Initialize the EEPROM IC pressing the “REC” key
on the Front Panel and “CLEAR” key on the
Remote controller at the same time.
1-6
SPECIFICATIONS
General
Power : 200~240V, 50Hz
Power consumption : Approx. 12 watts(Energy Saving mode : 3 watts)
Video Head system : Rotary 2heads, helical scanning system
(2HD Model)
Double azimuth 4 heads, helical scanning system
(4HD MONO, 4HD Hi-Fi Model)
Tape speed : 23.39 mm/sec (SP mode)11.69 mm/sec(LP mode)
Tape format : Tape width 1/2” (12.7 mm high density VHS tape)
Maximum recording time : 4 hours in SP mode/8 hours in LP mode (with E-240 tape)
Rewind time : Approx. 150 sec. (with E-180 tape)
Dimensions (W X H X D) : 360 x 94.5 x 270 mm
Weight : 9.0 lbs. (4.0 kg)
Operating temperature : 41°F-95°F (5°C-35°C)
Operating humidity : Less than 80%
Timer : 24 hours display type
Video
Television system : CCIR standard (625 lines, 50 fields)
PAL colour signal
Recording format : PAL B/G (HR-J282EU/J283EU/J582EU/J583EU/J285EU/
J290EU/293EU/J585EU/J590EU/J593EU)
PAL N (HR-J295EK/J595EK)
PAL SECAM-L (HR-J295MS/J595MS)
Input level : VIDEO IN (SCART, RCA type)
1.0 Vp-p, 75 ohm, unbalanced
Output level : VIDEO OUT (SCART type)
1.0 Vp-p, 75 ohm, unbalanced
Signal to noise ratio : More than 43 dBm
Audio
Input level : AUDIO IN (SCART type)
Scart type : -6.0dBm, more than 10kΩ
Output level : AUDIO OUT (SCART, RCA type)
Scart type : -6.0dBm, less than 1kΩ
RCA type : -6.0 dBm, less than 1kΩ
Audio track Mono track & Hi-Fi track
Audio signal to noise ratio : Normal : More than 70 dBm(JIS Afilter)
Audio dynamic range : Hi-Fi audio : More than 85 dBm(JIS Afilter)
• Design and specifications are subject to change without notice.
:Hi-Fi Model only
1-7
SECTION 2 CABINET & MAIN CHASSIS
Timer C.B.A
Housing & Deck Ass'y
Cassette T ape
(Upside Down)
Main C.B.A
SERVICE METHOD
Electrical Part
(1)Re-assembly Flow for service like Fig. 2-1
Timer C.B.A
Main C.B.A
Housing & Deck
Assembly
(2)To check and replace Electrical parts
2 Re-assemble the unit according to No.1) Re-assembly Flow.
3 Place the unit like Fig. 2-1
4 Check and replace Electrical parts.
NOTE :
1 Insert Video Cassette Tape inversely like Fig. 2-1 to check and replace defective parts.
2 In disassembling and reassembling, be careful not to damaged CST switch.
(Positioned Upside Down)
Fig.2-1
2-1
1. Cabinet and Main Frame Section
5
300
EXPLODED VIEWS
NOTE) Refer to “SECTION 5 REPLACEMENT
452
320
PARTS LIST” in order to look for the
part number of each part.
OPTIONAL PARTS
462
452
452
2SCART
1SCART
323
TU701(TUNER)
LED502(LED501)
A46
4
275
462
3
250
260
330
452
A49
464
A43
2
457
A00
284
A42
283
280
277
1
281
A
BCD
2-2
2.Packing Accessory Section
OPTIONAL PARTS
CABLE SET ASS'Y
(Optional parts)
810
BATTERY808
806
PLUG ASS'Y 2WAY
(Optional parts)
812
PLUG ASS'Y 1WAY
(Optional parts)
811
REMOCON900
PACKING (RF)803
PACKING (LF)803
BOX CARTON802
BAG. SOFR SHEET804
INSTRUCTION MANUAL801
SCART CABLE821
NOTE) Refer to “SECTION REPLACEMENT PARTS LIST
NOTE) in order to look for the part number of each part.
2-3
NICAM
(COMPONENT SIDE)
SCART JACK
Hi-Fi
SYSTEM
AVCP
Micom
T
U
N
E
R
Speak-ez
SW/IC
SECAM
VPS
EEPROM
CLK IC
W501
H.S/W
E2PROM
C
+
S
M
P
S
A/V
W502
DISPLAY(DOT,CLK)
SECTION 3 ELECTRICAL
ELECTRICAL ADJUSTMENT POINTS ARRANGEMENT
: Measurement point
: Adjustment point
3-1
3-2
ELECTRICAL ADJUSTMENT PROCEDURES
1. Servo Adjustment
1) PG Adjustment
• Test Equipment
• Adjustment And Specification
a) OSCILLOSCOPE
b) PALTEST TAPE (VHS SP)
c) JIG REMOCON (AUTO PG SETTING)
MODE
PLAY
• Adjustment Procedure
a) Insert the PALSP Test Tape and play.
Note - Adjust the distance of X, pressing the Tracking(+) or Tracking(-) when the “ATR(OSD on moni-
tor)” is blink after PAL SP test Tape is inserted.
b) Press the Auto PG KEY on JIG Remocon(1’st) or Press “Play” key on set and “0” key on
Remocon.(Then check the light 4 Dot LED on CLK/LED - TRK is a Initial)
c) Press the Auto PG Key on JIG Remocon again (2’nd) or press “Play” key on set and “0” key on
Remocon again.(Then check the blink 4 Dot LED - At regular 0.25sec internal, Then check blink “PG
waveform” on oscilloscope(MONO Model)).
• Check the PG
a) Connect the CH1 of the oscilloscope to the H/SW and CD2 to the Video out for the VCR.
b) Trigger the mixed Video Signal of CH2 to the CH1 H/SW(W501, W502), and then check the distance
(time difference), which is from the selected A(B) Head point of the H/SW(W501, W502) signal to the
starting point of the vertical synchronized signal, to 6.5H ± 0.5H (416µs, 1H=64.0µs).
• CONNECTION
V.Out
H/SW(W501, W502)
6.5 ± 0.5H
MEASUREMENT POINT ADJUSTMENT POINT SPECIFICATION
V.Out
H/SW(W501,W502)
OSCILLOSCOPE
CH1 CH2
V.out
H/SW
(W501, W502)
ELECTRICAL ADJUSTMENT PROCEDURES
H/SW
Composite
VIDEO
6.5H(416us)
• WAVEFORM
• Attension and Reference
a) The PG checking must do when RF Level is Maximum and SERVO system is Locking (MTR MODE)
b) V.H/SW Level is 2Vpp.
3-3
ELECTRICAL TROUBLESHOOTING GUIDE
1. Power Circuit(SMPS)
(1) No 5.3VA.
No 5.3VA.
YES
Is the F101 normal?
YES
Is the BD101 normal?
YES
Is the R101 normal?
YES
Does the oscillation waveform appear at
the IC101 Pin 7?
YES
NO
NO
NO
NO
Replace the F101
(Use the same Fuse).
Replace the BD101.
Replace the R101.
Is Vcc(about 13~15V) permittable at the
IC101 Pin 3?
NO
Check or Replace the D103.
Is there DC voltage at the IC101 Pin 4?
YES
Is there about 2.5V at the IC103 Vref ?
YES
Is the D106 normal?
YES
Check the Main PCB 5.3VA Line short?
NO
NO
NO
Replace the IC102.
Replace the IC103.
Replace the D106.
3-4
7. Power Circuit(SMPS)
(2) No 12VA.(Capstan)
No 12VA.
YES
Does 5.3VA work normally? Check whether 5.3VA is out of order.
YES
Is the D109 normal?
YES
Check 12VA Line of the Main PCB short.
(3) No 12VA (CANAL, Buffer)
No 12VA.
YES
NO
NO
Replace the D109.
Is Vcc(about 13VA) put into the Q155(E)? Replace the Peripheral Circuitry of D160.
YES
Is Voltage(about 12V) put into the
Q155(C)?
YES
Check or Replace the Q155.
NO
3-5
7. Power Circuit(SMPS)
(4) No 5VT(5V)
No 5VT.(5V)
YES
Is 5.3VA put into the Q152(Q151)
collector?
YES
Is the Q163(Q162) Base “H”?
YES
Is about 4.7V put into the
Q152(Q151) Base?
YES
Check or Replace the Q152(Q151).
NO
NO
Check the µ-com Control.
Check the Q163(Q162)
whether it works normally.
3-6
2. Servo Circuit
A.
Unstable Video in PB
Mode.
Does the on screen noise
level change periodically?
YES
Do CTL pulses appear at
IC501 pin 8?
YES
Does the CFG divide
waveform appear at IC501
pin 9?
YES
Do the CTL pulses move
when TRK is operated?
YES
NO
Is the height of the CTL
Head adjusted correctly?
NO
Adjust the CTL Head.
NO
Does the Video Envelope
waveform appear at IC501
Pin 24?
YES
Replace IC501.
Replace IC501.
NO
Check A VCP IC.
3-7
B.
Drum Motor stopped.
Does 12V appear at PMC01 Pin 8?
YES
Does 2.8V appear at PMD01 Pin 12?
Check Connector and Drum Motor Ass’y.
YES
Check the Components and foil Pattern
between IC501 Pin 26 and PMC01
Pin 12 for shorts.
YES
Do DFG Pulses appear at IC501 Pin 104?
YES
Does the Drum PWM waveform
appear at IC501 Pin 107?
YES
NO
Check Power.
NO
Does Drum PWM appear at IC501 Pin
107?
NO
Do DFG Pulses appear at PMD01 Pin 3?
NO
Check Drum Monitor Ass’y.
NO
Check the Components and foil pattern
between PMC01 Pin 11 and IC501
Pin 104 for shorts.
NO
Check the Components and foil Pattern
Connected to IC501 Pin 107 PMC01
Pin 12 for shorts.
Replace IC501.
3-8
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