Sanyo HV-DX1E User manual

SERVICE MANUAL
DVD Player + Video Cassette
Recorder
FILE NO.
REFERENCE No.SM5310392
HV-DX1E
(Product Code : 143 187 02)
(U.K.)
KW4HV/E, EV, SP
CAUTION
This product utilizes a laser.
The adjustment other than those specified herein may result in hazardous radiation exposure.
HV-DX1EV
(Product Code : 143 187 03)
(Europe)
HV-DX1SP
(Product Code : 143 187 04)
PAL
(Spain)

CONTENTS
SECTION 1 . . . . SUMMARY
SECTION 2 . . . . CABINET & MAIN CHASSIS
SECTION 3 . . . . ELECTRICAL
SECTION 4 . . . . MECHANISM OF VCR PART
SECTION 6 . . . . REPLACEMENT PARTS LIST
SECTION 5 . . . . MECHANISM OF DVD PART

MECHANISM TROUBLESHOOTING GUIDE
4-23
Auto REW doesn't work.
Is the output of END sensor
of supply side "H"?
“H”: more than 3.5V
“L”: less than 0.7V~1V
Is the voltage across IR LED
between 0.8~1.5V? Replace LED.
Is the Vcc. voltage of End
sensor 5V? Check the syscon power.
Replace End sensor.
Check syscon circuit.
NO
YES
YES
YES
NO
NO
NO
1.Deck Mechanism
A.
NO
NO
NO
No F/R modes.
Is the present mode,
F/R Mode?
Is the mode SW assembled
correctly (refer to Pages 4-14.)
Is the normal voltage supplied to
the Capstan Motor Vcc1, Vcc2.?
Does terminal voltage(Vctl) of
Capstan Motor supply side
more than 4V?
Check Servo, Power Circuits.
Replace the Capstan Motor.
Does the Capstan Motor rotate?
Do the T/Up, Supply Reel
rotate?
Check syscon circuit.
YES
YES
YES
YES
YES
YES
B.

4-24
MECHANISM TROUBLESHOOTING GUIDE
AUTO STOP.
(PLAY/CUE/REV)
Are there T/up and supply reel
pulses.
In Play/Cue/Rev is the pinch
roller in contact with the capstan
shaft.
Replace Reel Sensor.
Is the output of DFG, DPG OK?
Check aligment positions (page 4-
14) Check spring Pinch.
Replace Drum Motor.
Check Servo, Syscon.
Check the Syscon, µ-COM.
No cassette loading.
Insert the cassette.
Check Holder Assembly CST.
Is there variation for CST IN S/W
Output?
(In Tape with REC Tab
“L”→“H”→“L”)
(In Tape without REC Tab
“L”→“H”→“L”→“H”)
Does the CST IN S/W work
normally?
Does the lever Assembly S/W
work normally.
Check Syscon Circuit. Check Syscon Circuit.
Replace CST IN S/W.
YES
YES
YES
YES YES
YES
NO
NO
NO
NO
NO NO
NO
YES
C.
D.

4-25
MECHANISM TROUBLESHOOTING GUIDE
In PB mode Tape Presence
not sensed.
Is the Pinch Roller attached
to the Capstan Motor Shaft?
Check Alignment positions
(page 4-14)
Does the T/Up
Reel turn? Replace the Belt.
Is the Belt ok?
Does the Drum
Motor turn?
Are there DPG,
DFG Pulses?
Are the T/Up Supply Reel Sensors
ok?
Check Syscon,
Circuit.
Check Syscon,
Circuit.
Check Servo, Syscon.
Does the Capstan Motor turn?
Is the terminal voltage of the
Drum Motor more than 2.3V?
Replace the
Drum Motor.
Is the Vcc voltage of the Drum
Motor normal?
Check the clutch and the Idler
Assembly.
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
Is the terminal voltage of Capstan
Motor supplied more than 4V?
Replace the
Capstan Motor.
Is the Voltage supplied to the
Capstan Motor Vcc1,Vcc2 each?
YES
YES
YES
Check Servo,
Power.
NO
NO
NO
E.

MECHANISM TROUBLESHOOTING GUIDE
4-26
Cassette cannot be inserted.
Does the Lever Assembly
Switch work?
Is the Lever Assembly Switch
Spring damaged or omitted?
Does the CST IN Switch work
normally?
Replace or add the Lever
Assembly Switch Spring.
Is the Vcc of Main P.C.Board
5V?
YES
YES
Check syscon circuit.
YES
Check power circuit.
NO
Is the voltage between cassette
switch and GND on Main
P.C.Board 5V??
YES
Is there a short circuit between cassette
switch and GND on main P.C.Board?
Remove the short circuit part or
Replace the main P.C.Board.
NO
Check Mode switch location and
syscon circuit.
Replace CST IN Switch.
YES
NO
YES
NO NO
Replace CST IN Switch.
NO
NO
Cassette will not eject.
Does the L/D motor rotate in reverse? Check L/D Motor or Drive IC.
Replace lever Assembly Switch.
Does the Lever Assembly Switch work?
YES
NO
NO
Does the Arm Assembly F/L work normally?
YES
NO
Does the Opener Door work?
YES
Replace Arm Assembly F/L.
Replace the Opener Door.
2. Front Loading Mechanism
A.
B.

MECHANISM TROUBLESHOOTING GUIDE
4-27
Cassette will not load.
Does the CST insert?
Does the opener Lid work?
Is the opener Door assembled correctly?
Replace the Opener Lid.
Replace the Arm Assembly F/L.
Check the power of L/D Motor.
Is the Holder Assembly Cassette
assembled correctly?
Replace the Rear Rack F/L.
Does the Gear Rack F/L work?
Does the Opener Door work?
Does the Arm Assembly F/L work?
Does the L/D Motor work?
Does the Holder Assembly Cassette
move the Arm Assembly F/L?
Replace the Front Loading
Mechanism Assembly.
YES
YES
YES
YES
NO
NO
NO
YES NO
YES NO
YES NO
C.

4-28
EXPLODED VIEWS
117
103
105 117
100
106
107
A21
114
113
112
110
115
A24
116
102
A23
032
A22
109
054
054A
1. Front Loading Mechanism Section

EXPLODED VIEWS
4-29
401
402
001
008
011
031
079
017
032
024
406
020
021
028
019
018
029
030
026
A03
A04
A01
002
002A
025
027
022
003
004
006
007
010
405
014
015
009
409
013
023 016
405
012
402
OPTIONAL PART
2. Moving Mechanism Section(1)

EXPLODED VIEWS
4-30
051
052
517
061
056
058
518 052A
055
060
410
070
069
076
032
077
068
064
066
065
067
A11
078
A12
3. Moving Mechanism Section(2)