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Extracted text from Jvc HRXV 2 E Service Manual (Ocr-read)
Page 1
CONTENTS
SECTION 1 . . . . SUMMARY
SECTION 3 . . . . ELECTRICAL
SECTION 4 . . . . MECHANISM OF VCR PART
SECTION 5 . . . . MECHANISM OF DVD PART
SECTION 6 . . . . REPLACEMENT PARTS LIST
Page 2
SECTION 1
SUMMARY
CONTENTS
Important Safety Precautions
SPECIFICATIONS ................................................................................................... 1-5
Page 15
3-10
(4) KEY doesnt working
KEY doesnt working.
Is 5V applied to the IC501
Pin36?
Does LED or FLD change
when a function button is
pressed?
Refer to SMPS 5.3VA
Trouble Shooting.
Replace the defective
switches.
YES
NO
NO
Page 47
4-14
DECK MECHANISM ADJUSTMENT
Purpose: To insure smooth transport of the tape during each mode of operation.If the tape transport is abnormal, then check the torque as indicated by\
the chart below.
2. Preparation for Adjustment (To set theDeck Mechanism of the loading state
without inserting a cassette tape).
1) Unplug the power cord from the AC outlet.
2) Disassemble the Top Cover and Plate Assembly Top.
3) Plug the power cord into the AC outlet.
4) Turn the power S/W on and push the Lever Stopper of the Holder Assembly CST to the back for loading the cassette without tape.
Cover the holes of the End Sensors at the both sides of
the Chassis to prevent a light leak.
Then the Deck Mechanism drives to the Stop Mode.
In this case, the Deck Mechanism can accept inputs of
each mode, however the Rewind and Review operation
can not be performed for more than a few seconds
because the Take-up Reel Table is in the Stop State
and can not be detected the Reel Pulses.
3. Checking Torque
NOTE:
The values are measured by using a Torque Gauge and
Torque Gauge Adaptor with the Torque Gauge affixed.
NOTE:
The torque reading to measure occurs when the tape
abruptly changes direction from Fast Forward to Rewind
Mode, when quick braking is applied to both Reels.
SRKVIDEO
CASSET E TORQUEMETER
VHT 303 SRK-VHT- S
S
RK-VHT-T
300250
200
150
50
0
300250 200150
50
0
100
Test Equipment/ Fixture
- Torque Gauge(600g/cm ATG)
- Torque Gauge Adaptor
- Cassette Torque Meter
Checking Method
- Perform each Deck Mechanism mode withoutinserting a cassette tape(Refer to above No.2
Preparation for Adjustment).
- Read the measurement of the Take-up or Supply Reels on the Cassette Torque Meter(Fig. C-3-2).
- Attach the Torque Gauge Adaptor to the Torque Gauge and then read the value of it(Fig. C-3-1).
Fig. C-3-2 Fig. C-3-1
Torque Gauge
Torque Gauge
Adaptor Reel Table
Item
Fast Forward Torque
Rewind Torque
Play Take-Up Torque
Review Torque Mode
Fast Forward
Rewind
Play
Review Test Equipment
Cassette Torque Gauge
Cassette Torque Gauge
Cassette Torque Meter
Cassette Torque Meter Measurement Reel
Take-Up Reel
Supply Reel
Take-Up Reel Supply Reel Measurement Values
More than 400g/cm
More than 400g/cm
40~100g/cm
120~210g/cm
Test Conditions
(Mechanism Condition)
- Play (FF) or Review (REW) Mode
- Cassette Torque Meter
- Torque Gauge (600g.cm ATG)
Page 66
5-2
DECK MECHANISM DISASSEMBLY
1. Holder Clamp (Fig. 5-1)
1) Release 1 Screws(S1).
2) Unhook 2 Locking Tabs(L1).
3) Lift up the Holder Clamp and then separate it from theBase Main.
1-1. Clamp Assembly Disc
1) Place the Clamp Assembly Disc as Fig. (A)
2) Lift up the Clamp Assembly Disc in direction ofarrow(A).
3) Separate the Clamp Assembly Disc from the Holder Clamp.
1-1-1. Plate Clamp
1) Turn the Plate Clamp to counterclockwise direction and then lift up the Plate Clamp.
1-1-2. Magnet Clamp
1-1-3. Clamp Upper
2. Tray Disc (Fig. 5-2)
1) Insert and push a Driver in the emergency eject hole(A) at the right side, or put the Driver on the
Lever(B) of the Gear Emergency and pull the Lever(B)
in direction of arrow so that the Tray Disc is ejected
about 15~20mm.
2) Pull the Tray Disc until it is separated from the Base Main completely.
HOLDER CLAMP
CLAMP ASSEMBLY DISC
PLATE CLAMP
MAGNET CLAMP CLAMP UPPER
(S1)
(L )
(L1) HOLDER CLAMP
BASE MAIN
HOLDER CLAMP
(Fig. A)(A)
TRAY DISC
EMERGENCY EJECT HOLE
LEVER
BASE MAIN BASE MAIN
BOTTOM SIDE VIEW (A)
(B)
Fig. 5-1 F ig. 5-2
Page 71
6-1
SECTION 6
REPLACEMENT PARTS LIST
SAFETY PRECAUTION
Parts identified by the ! symbol are critical for safety. Replace only with specified part numbers.
BEWARE OF BOGUS PARTS
Parts that do not meet specifications may cause trouble in regard to safety and performance. We recom-
mend that genuine JVC parts be used.
6.1.1 PACKING AND ACCESSORY ASSEMBLY
The instruction manual to be provided with this product will differ according to the destination. 6.1 EXPLODED VIEW
BATTERY 808
BAG 804
PACKING
OPTIONAL PARTS
803
806
INSTRUCTION ASSEMBLYCABLE, COAXIAL
810
CABLE ASS'Y, RF
801
REMOCON 900
BOX CARTONX 802
PACKING 803
811
812
PLUG ASS'Y(YELLOW)
PLUG ASS'Y(RED/WHITE)
821 SCART CABLE
813
PLUG ASS'Y(BLACK)
Page 99
3-503-51
2. SMPS P.C.BOARD
LOCATION GUIDE
NOTES) Warning
Parts hat are shaded are critical
With respect to risk of fire or
electricial shock.
Page 113
3-823-83
EE PLAY
MODE
3.25
3.25
3.25
1.60
2.14
2.07
3.25
2.71
2.13
3.25
5.02
3.23
2.07
2.06
5.02
3.24
1.62
0.82
3.25
2.42
2.15
3.25
3.25
3.25
3.25
2.26
5.02
2.27
5.02
3.19
3.19
5.04
3.25
3.24
3.24
1.79
4.86
3.25
2.22
4.78
5.40
5.39
5.40
5.41
5.40
5.40
5.39
11 97 7.94
5.04
5.02
PIN NO. C3F3C293
C262
C281
C279
C285
C297
C280
C278
C208
C240
C232
C231
C288
C2C9 C284C211
C212
C274
C213
C272
C263
C264
C261
C321
C2D5 C2A4
C2C2
C2D1 C507
C539
C561
C504
C308
C317
C309
C409
C405
C408
C422
C404
C402
C401
C419
C420
C415
C403
C413
C2M1 C2D4
C2M8
CAPACITOR
STOP PLAY
MODE
5.09
5.09
0.00
5.07
5.07
0.00
2.83
3.21
5.09
2.29 3.11
2.70
0.00
0.00
3.26
5.17
4.48
5.17
1.55
0.00
0.75
1.56
0.00
0.75 5.05
5.24
0.00
0.00
0.00
1.82
2.36
3.12
3.84
2.43
3.20
3.66
0.00
0.00
3.23
5.17
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
PIN NO. E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
Q2A1 Q2A2 Q2A5 Q2A6 Q2M1 Q401 Q404 Q405