NOTE) The table of contents for this section is edited
NOTE) separately.
SECTION 5
REPLACEMENT PARTS LIST
5.1 EXPLODED VIEW5-1
5.1.1
5.1.2 FINAL ASSEMBLY <M2>5-2
5.1.3 MECHANISM ASSEMBLY <M4>5-3
5.2 REPLACEMENT PARTS LIST5-4
PACKING AND ACCESSORY PARTS LIST<M1> 5-4
FINAL PARTS LIST<M2>5-4
MECHANISM PARTS LIST<M4>5-4
MAIN BOARD ASSEMBLY<03>5-5
PACKING AND ACCESSORY ASSEMBLY <M1>
. . . . . . . . . . . . . . . . . . . . . . .
. . . .
. . . . . . . . . . . . . .
. . . . . . . . .
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . .
5-1
.
The following table indicates main different points between models HR-V200EZ, HR-V205EK, HR-V500EZ, HR-V505EK and HR-V505EZ.
ITEM
BROADCASTING STANDARD
AUDIOMONOHiFi
STEREO DECODERNOT USEDNOT USED
VIDEO HEAD24
TAPE SPEEDSPSP/LP
SHOWVIEW/VIDEOplus+
FRAME ADVANCENOT USEDUSED
SLOW(FORWARD)NOT USEDUSED
DIGITAL SHUTTLENOT USEDUSED
HiFi AUDIO OUT(RCA)NOT USEDUSED
AV2 CONNECTORNOT USEDUSEDNOT USED
POWER PLUGCEEBSCEEBSCEE
Notes: Mark is same as left.
MODEL
HR-V200EZ
PAL B/G,D/KPAL IPAL B/G,D/KPAL IPAL B/G,D/K
NOT USEDVIDEOplus+NOT USEDVIDEOplus+SHOWVIEW
HR-V500EZHR-V205EKHR-V505EZHR-V505EK
NICAM, 2 Carrier
NICAM
NICAM,2 Carrier
SECTION1 SUMMARY
KEY TO ABBREVIATIONS
AAC:Alternating Current
BB :Base
C C:Capacitor, Chroma, Collector
DD:Drum, Digital, Diode, Drain
EE:Emitter
FF:Fuse
G GEN:Generator
HH:High, Horizontal
IIC:Integrated Circuit
LL: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
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
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
Connector
Metal sleeve
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 Tape3) Spacers5) Barrier
2) PVC tubing4) 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).
cut close to connector
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
7. Observe that wires do not contact heat producing parts
8. Check that replaced wires do not contact sharp edged or
9. When a power cord has been replaced, check that 10-15 kg of
10. Also check areas surrounding repaired locations.
11. Products using cathode ray tubes (CRTs)
Fig.1
(heatsinks, oxide metal film resistors, fusible resistors, etc.)
pointed parts.
force in any direction will not loosen it.
Power cord
Fig.2
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.
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 & AustraliaR 10 MΩ/500 V DC
RegionLoad 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
i1 mA rmsExposed accessible parts
i0.5 mA rms
i0.7 mA peak
i2 mA dc
i0.7 mA peak
i2 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’
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
data of the specific IC according to each power(5V, 5VT) µ-COM gets unable to
TR is kept from
• POWER for each IC
5.2V5.2VT
5.3VA
• IC to detect ‘ACK’ data is selected as below because IC is different in accordance to region and option
EF5V POWERSECAM IC
AVCP IC
TUNER
Timer Control
Series 5VT POWERAVCP IC
Other 5V POWERModulator
Series 5VT POWERAVCP 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 PALVCR 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.
Power: 200~240V, 50/60Hz
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 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
Input level: VIDEO IN (SCART, RCA type)
Output level: VIDEO OUT (SCART type)
Signal to noise ratio: More than 43 dBm
:
:
:
1.0 Vp-p, 75 ohm, unbalanced
1.0 Vp-p, 75 ohm, unbalanced
Audio
Input level: AUDIO IN (SCART, RCA type)
Scart type : -6.0dBm, more than 10kΩ
RCA type : -6.0 dBm, more than 47kΩ
Output level: AUDIO OUT (SCART, RCA type)
Scart type : -6.0dBm, less than 1kΩ
RCA type : -6.0 dBm, less than 1kΩ
Audio trackMono track & Hi-Fi track
Audio signal to noise ratio: Normal : More than 70 dBm(JIS A filter)
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
1-8
SECTION 2CABINET & 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
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
ELECTRICAL ADJUSTMENT PROCEDURES
V.Out
H/SW(W501,W502)
OSCILLOSCOPE
CH1 CH2
V.out
H/SW
(W501, W502)
1. Servo Adjustment
1) PG Adjustment
• Test Equipment
a) OSCILLOSCOPE
b) PALTEST TAPE (VHS SP)
c) JIG REMOCON (AUTO PG SETTING)
• Adjustment And Specification
MODE
PLAY
MEASUREMENT POINTADJUSTMENT POINTSPECIFICATION
V.Out
H/SW(W501, W502)
6.5 ± 0.5H
• Adjustment Procedure
a) Insert the PAL SP Test Tape and play.
Note - Adjust the distance of X, pressing the Tracking(+) or Tracking(-) when the “ATR” is blink after the
PAL SP Test Tape is inserted.
b) Press the Auto PG KEY on JIG Remocon(1’st) or Press “REC” key on set and “CLEAR” key on
Remocon.(Then check the blink “TRK OK” on CLK/LED-TRK is a Initial)
c) Press the Auto PG Key on JIG Remocon again (2’nd) or press “REC” key on set and “CLEAR” key on
Remocon again.(Then check the blink “PG NG > PG OK” on CLK/LED.)
• Check the PG
a) Connect the CH1 of the oscilloscope to the H/SW and CH2 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
3-2
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
C.
Capstan Motor Stopped.
Does 13VA appear at PMC01 Pin 2?
YES
Does 2.8V appear at PMC01 Pin 9?
YES
Check Connector and Capstan
Motor Ass’y .
YES
Check the Components and foil Patterns
Connected between IC501 Pin 108 and
PMC01 Pin 9 for shorts.
YES
Does the CFG signal appear at IC501
Pin 9?
YES
Does Capstan PWM appear at IC501
Pin 108?
YES
NO
Check Power.
NO
Does PWM wave appear at IC501
Pin 108?
NO
Does the CFG signal appear at PMC01
Pin 1?
NO
Check Capstan Motor Ass’y.
NO
Check Components and foil patterns
between PMC01 Pin 7 and IC501
Pin 9 for shorts.
NO
Check the components and foil pattern
connected between IC501 Pin 108 and
PMC01 Pin 9 for shorts
Replace IC501.
3-9
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