DVD PLAYER IS A CLASS 1 LASER PRODUCT. HOWEVER THIS PLAYER USES A VISIBLE LASER
BEAM WHICH COULD CAUSE HAZARDOUS RADIATION EXPOSURE IF DIRECTED. BE SURE TO
OPERATE THE PLAYER CORRECTLY AS INSTRUCTED.
THE FOLLOWING CAUTION LABEL IS LOCATED ON THE REAR PANEL OF THE PLAYER.
CLASS 1
LASER PRODUCT
(Printed on the Rear Panel)
WHEN THIS PLAYER IS PLUGGED TO THE WALL OUTLET, DO NOT PLACE YOUR EYES CLOSE
TO THE OPENING OF THE DISC TRAY AND OTHER OPENINGS TO LOOK INTO THE INSIDE OF
THIS PLAYER.
USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN
THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
DO NOT OPEN COVERS AND DO NOT REPAIR YOURSELF. REFER SERVICING TO QUALIFIED
PERSONNEL.
SERVICE NOTICE ON CHECKING
1. KEEP THE NOTICES3. PUT PARTS AND WIRES IN THE
As for the places which need special attentions,
they are indicated with the labels or seals on the
cabinet, chassis and parts. Make sure to keep the
indications and notices in the operation manual.
2. USE THE DESIGNATED PARTS
The parts in this equipment have the specific
characters of incombustibility and withstand
voltage for safety. Therefore, the part which is
replaced should be used the part which has
the same character.
Especially as to the important parts for safety
which is indicated in the circuit diagram or the
table of parts as a mark, the designated
parts must be used.
ORIGINAL POSITION AFTER
ASSEMBLING OR WIRING
There are parts which use the insulation
material such as a tube or tape for safety, or
which are assembled in the condition that
these do not contact with the printed board.
The inside wiring is designed not to get closer
to the pyrogenic parts and high voltage parts.
Therefore, put these parts in the original
positions.
PERFORM A SAFETY CHECK AFTER
4.
SERVICING
Confirm that the screws, parts and wiring which
were removed in order to service are put in the
original positions, or whether there are the
portions which are deteriorated around the
serviced places serviced or not. Check the
insulation between the antenna terminal or
external metal and the AC cord plug blades.
And be sure the safety of that.
HOW TO ORDER PARTS
Please include the following informations when you order parts. (Particularly the VERSION LETTER.)
1. MODEL NUMBER and VERSION LETTER
The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be
found at the end of the SERIAL NUMBER.
2. PART NO. and DESCRIPTION
You can find it in your SERVICE MANUAL.
- 1 -
DISASSEMBLY INSTRUCTION
1.
REMOVAL OF MECHANICAL PARTS
AND P.C. BOARDS
1-1:
TOP CABINET AND FRONT CABINET
(Refer to Fig. 1-1)
1.
Remove the 5 screws .
2.
Remove the Top Cabinet in the direction of arrow (A).
3.
Disconnect the following connector: (CP651).
4.
Unlock the 8 supports .
5.
Remove the Front Cabinet in the direction of arrow (B).
6.
Remove the 4 screws .
7.
Remove the Operation PCB in the direction of arrow (C).
Front Cabinet
(B)
2
2
2
2
2
2
1-2: FLAP (Refer to Fig. 1-2)
1.2.Open Flap to 90˚ and flex in direction of arrow (A), at
the same time slide in direction of arrow (B).
Then lift in direction of arrow (C).
1
2
3
(A)
1
1
1
3
1
3
Top Cabinet
3
2
(C)
2
3
Operation PCB
Fig. 1-1
1-3: DVD DECK (Refer to Fig. 1-3)
1.
Make the short circuit on the position as shown Fig. 1-3
using a soldering. If you remove the DVD Deck with no
soldering, the Laser may be damaged.
2.
Unlock the support and remove the Deck Top Holder
1
in the direction of arrow (A).
3.
Remove the 3 screws .
4.
Remove the screw .
5.
Disconnect the following connectors: (CP2601,
2
3
CP2602, CP2603).
Remove the DVD Deck in the direction of arrow (B).
6.
7.
Remove the 3 screws .
8.
Remove the Front
Deck Top Holder
1
4
4
4
Front Angle
4
Angle in the direction of arrow (C).
Pick Up PCB
2
2
Make the sort circuit
using a soldering.
(A)
(C)
DVD Deck
2
3
1
(B)
Fig. 1-3
NOTE
When the installation of the DVD Deck, remove all the
soldering on the short circuit position after the connection
of Pick Up PCB and DVD PCB connector.
(C)
(B)
(A)
Flap
Fig. 1-2
1-4: POWER PCB (Refer to Fig. 1-4)
1. Remove the 3 scres .
1
2. Disconnect the following connector; (CP1701)
3. Remove the Power PCB in the direction of srrow.
4. Remove the svrew and remove the DVD Angle.
2
1
1
1
Power PCB
DVD Angle
2
Fig. 1-4
- 2 -
DISASSEMBLY INSTRUCTION
1-5: DVD PCB (Refer to Fig. 1-5)
Remove the 3 screws
1.
Remove the screw
2.
Disconnect the following connectors: (CP4002, CP8101
3.
2
1
.
.
and CP8102).
4.
Remove the DVD PCB in the direction of arrow
1
1
1
DVD PCB
2
.
Fig. 1-5
1-6: VCR DECK (Refer to Fig. 1-6)
NOTE
Do not remove the cable at the FE Head section. The FE
Head may be damaged if you remove the cable by force.
1.
Move the Cassette Holder Ass’y to the back side.
2.
Remove the screw
3.
Remove the FE Head.
Remove the 3 screws
4.
5.
Disconnect the following connectors: (CP101, CP102,
1
.
2
.
and CP3001).
6.
Remove the AC Head Cover and VCR Deck in the
direction of arrow
.
1-7: VCR PCB (Refer to Fig. 1-7)
1.
Remove the screw and remove the Fiber Washer.
2.
Remove the 4 screws
3.
Remove the screw
4.
Remove the screw
5.
Remove the 3 Pin Shield.
6.
Remove the VCR PCB in the direction of arrow
4
3 Pin Shield
1
3
4
2
.
.
VCR PCB
.
asher
Fiber W
2
2
.
2
2
3
Fig. 1-7
VCR Deck
FE Head
1
2
2
2
AC Head Cover
Fig. 1-6
- 3 -
DISASSEMBLY INSTRUCTION
2. REMOVAL OF VCR DECK PARTS
2-1: TOP BRACKET (Refer to Fig. 2-1)
Extend the 2 supports .
1.
Slide the 2 supports and remove the Top Bracket.
2.
NOTE
1. After the installation of the Top Bracket, bend the
support so that the Top Bracket is fixed.
1
1
Top Bracket
Main Chassis
2
2-2: CASSETTE HOLDER ASS'Y (Refer to Fig. 2-2)
Move the Cassette Holder Ass'y to the front side.
1.
Push the Locker R to remove the Cassette Side R.
2.
Remove the Cassette Side L.
3.
Main Chassis
1
2
Top Bracket
1
2
Main Chassis
Fig. 2-1
Cassette Side R
Locker R
NOTE
1.2.In case of the Locker R installation, check if the one
position of Fig.2-3-B are correctly locked.
When you install the Cassette Side R, be sure to move
the Locker R after installing.
Locker R
Check if this position
Cassette Side R
is locked.
Fig. 2-3-B
2-4: LINK UNIT (Refer to Fig. 2-4)
1.
Set the Link Unit to the Eject position.
Unlock the support .
2.
3.
Remove the (A) side of the Link Unit first, then remove
1
the (B) side.
Main Chassis
Link Unit
Link Unit
Cassette Side L
Main Chassis
Fig. 2-2
2-3: CASSETTE SIDE L/R (Refer to Fig. 2-3-A)
Remove the Locker Spring.
1.
Unlock the 4 supports and then remove the Cassette
2.
1
Side L/R.
2
2
Locker Spring
Cassette Holder
Locker R
1
1
3.
Unlock the support and then remove the Locker R.
1
1
(A)
1
(B)
Link Unit
Main Chassis
2-5: LINK LEVER/FLAP LEVER (Refer to Fig. 2-5)
Extend the support .
1.
Remove the Link Lever.
2.
Remove the Flap Lever.
3.
1
1
Flap Lever
Link Lever
Fig. 2-4
Fig. 2-5
Cassette Side R
Cassette Side L
Fig. 2-3-A
- 4 -
DISASSEMBLY INSTRUCTION
2-6: LOADING MOTOR/WORM (Refer to Fig. 2-6-A)
Remove the screw .
1.
Remove the Loading Motor.
2.
Remove the Worm.
3.
Main Chassis
• Screw Torque: 3± 0.5kgf•cm
1
Loading Motor
Worm
1
Fig. 2-6-A
NOTE
In case of the Worm installation, check if the value of
1.
the Fig. 2-6-B is correct.
2.
In case of the Loading Motor installation, hook the wire
on the Cassette Opener as shown Fig. 2-6-C.
3.
When installing the wires between Capstan DD Unit
and Loading Motor, connect them correctly as shown
Fig. 2-6-D.
2-7: TENSION ASS'Y (Refer to Fig. 2-7-B)
Turn the Pinch Roller Cam clockwise so that the
1.
Tension Holder hook is set to the position of Fig. 2-7-A
to move the Tension Arm Ass'y.
Remove the Tension Spring.
2.
Unlock the 2 supports and remove the Tension
3.
1
Band.
Unlock the support and remove the Tension Arm
4.
2
Ass'y.
Unlock the support and remove the Tension
5.
3
Connect.
6.
Float the hook and turn it clockwise then remove the
4
Tension Holder.
Tension Arm Ass'y
Fig. 2-7-A
1
Tension Connect
Tension Spring
2
4
1
3
Tension Holder
Tension Band
Tension Arm Ass'y
19.2 0.1mm
Safety surface for pressing
of the insert.
Loading Motor
Cassette Opener
Fig. 2-6-B
Fig. 2-6-C
Loading MotorCapstan DD Unit
-
Pink
L2
Fig. 2-7-B
NOTE
1.
In case of the Tension Band installation, note the
direction of the installation. (Refer to Fig. 2-7-C)
2.
In case of the Tension Band installation, install correctly
as Fig. 2-7-D.
In case of the Tension Connect installation, install as
3.
the circled section of Fig. 2-7-E.
Tension Connect
Tension Band
Fig. 2-7-C
[OK]
[NG]
Tension Connect
Tension Connect
Tension Band
Tension Band
Fig. 2-7-D
+
White
L1
Fig. 2-6-D
- 5 -
Tension Connect
Main Chassis
Fig. 2-7-E
DISASSEMBLY INSTRUCTION
2-8: T BRAKE ARM/T BRAKE BAND (Refer to Fig. 2-8-A)
Remove the T Brake Spring.
1.
Turn the T Brake Arm clockwise and bend the hook
2.
section to remove it.
3.
Unlock the 2 supports and remove the T Brake
Band.
1
Idler Gear
S Reel
Idler Arm Ass'y
(B)
T Brake Band
Hook section
1
1
T Brake Arm
T Brake Spring
Fig. 2-8-A
NOTE
1. In case of the T Brake Band installation, install correctly
as Fig. 2-8-B.
[OK]
T Brake Band
[NG]
T Brake Band
T Brake Arm
T Brake Arm
(A)T Reel
(A)
1
Fig. 2-9-A
NOTE
1.2.In case of the S Reel and T Reel installation, check if the
correct parts are installed. (Refer to Fig. 2-9-B)
In case of the Idler Arm Ass'y installation, install correctly
as Fig. 2-9-C. And also set it so that the section "B" of
Fig. 2-9-A is placed under the Main Chassis tab.
Fig. 2-8-B
2-9: S REEL/T REEL/IDLER ARM ASS'Y/IDLER GEAR
(Refer to Fig. 2-9-A)
Remove the S Reel and T Reel.
1.
Remove the 2 Polyslider Washers .
2.
Remove the Idler Arm Ass'y and Idler Gear.
3.
1
NOTE
Take care not to damage the gears of the S Reel and T
1.
Reel.
The Polyslider Washer may be remained on the back of
2.
the reel.
3.
Take care not to damage the shaft.
4.
Do not touch the section "A" of S Reel and T Reel. (Use
gloves.) (Refer to Fig. 2-9-A) Do not adhere the stains
on it.
When you install the reel, clean the shaft and grease it
5.
(FG-84M). (If you do not grease, noise may be heard in
FF/REW mode.)
After installing the reel, adjust the height of the reel.
6.
(Refer to MECHANICAL ADJUSTMENT)
[OK]
[NG]
Clutch Gear
Clutch Gear
Big Hole
(S Reel)
Small Hole
(T Reel)
Fig. 2-9-B
Idler Arm Ass'y
Idler Arm Ass'y
Fig. 2-9-C
- 6 -
DISASSEMBLY INSTRUCTION
2-10: CASSETTE OPENER/PINCH ROLLER BLOCK/
P5 ARM ASS'Y (Refer to Fig. 2-10-A)
Unlock the support and remove the Cassette
1.
Opener.
2.
Remove the Pinch Roller Block and P5 Arm Ass'y.
1
1
Cassette Opener
Pinch Roller Block
P5 Arm Ass'y
Main Chassis
Fig. 2-10-A
NOTE
Do not touch the Pinch Roller. (Use gloves.)
1.
In case of the Pinch Roller Block and the Pinch Roller
2.
Cam installation, install correctly as Fig. 2-10-B.
Pinch Roller Block
P5 Arm Ass'y
Can be seen the hole of the
Main Cam.
Can be seen the hole of
the Pinch Roller Cam.
Fig. 2-10-B
2-11: A/C HEAD (Refer to Fig. 2-11-A)
Remove the screw .
1.
Remove the A/C Head Base.
2.
Remove the 3 screws .
3.
Remove the A/C Head and A/C Head Spring.
4.
1
2
NOTE
1.
Do not touch the A/C Head. (Use gloves.)
2.
When you install the A/C Head Spring, install as shown in
Fig. 2-11-B.
3.
When you install the A/C Head, tighten the screw (1) first,
then tighten the screw (2), finally tighten the screw (3).
(3)
(1)
2
2
(2)
1
2
A/C Head
A/C Head Spring
Spring Position
Fig. 2-11-B
2-12: FE HEAD (RECORDER ONLY) (Refer to Fig. 2-12)
Remove the screw .
1.
2.
Remove the FE Head.
• Screw Torque: 5 ± 0.5kgf•cm
• The FE Head is not installed on the Video Cassette Player.
FE Head
1
1
Fig. 2-12
2-13: AHC ASS'Y/CYLINDER UNIT ASS'Y
(Refer to Fig. 2-13)
Unlock the support and remove the AHC Ass'y.
1.
2.
Disconnect the following connector:
1
(CD2001)
Remove the 3 screws .
3.
Remove the Cylinder Unit Ass'y.
4.
2
NOTE
When you install the Cylinder Unit Ass'y, tighten the
1.
screws from (1) to (3) in order while pulling the Ass'y
toward the left front direction.
Cylinder Unit Ass'y
AHC Ass'y
1
(3)
(2)
(1)
• Screw Torque: 3 ± 0.5kgf•cm
2
2
2
Fig. 2-13
• Screw Torque: 5 ± 0.5kgf•cm (Screw )
1
A/C Head Base
Fig. 2-11-A
- 7 -
DISASSEMBLY INSTRUCTION
2-14: CAPSTAN DD UNIT (Refer to Fig. 2-14-A)
Remove the Capstan Belt.
1.
Remove the 3 screws .
2.
3.
Remove the Capstan DD Unit.
1
2-15:
MAIN CAM/PINCH ROLLER CAM/JOINT GEAR
(Refer to Fig. 2-15-A)
Remove the E-Ring , then remove the Main Cam.
1.
Remove the E-Ring , then remove the Pinch Roller
2.
1
2
Cam and Joint Gear.
1
Capstan Belt
Capstan DD Unit
1
1
• Screw Torque: 4 ± 0.5kgf•cm
1
Fig. 2-14-A
NOTE
In case of the Capstan DD Unit installation, apply the
1.
silicon bond (TSE3843-W) on the position Fig. 2-14-B
correctly. (If no silicon bond applied, abnormal noise will
be heard on the deck operation.)
(Refer to Fig. 2-14-B, C)
Applied position of
silicon bond
Main Cam
2
Pinch Roller Cam
Joint Gear
Fig. 2-15-A
NOTE
In case of the Pinch Roller Cam and Main Cam
1.
installation, install them as the circled section of Fig. 215-B so that the each markers are met. (Refer to Fig.
2-15-B)
Pinch Roller Cam
Marker
Capstan DD Unit
Be careful not to apply the silicon
bond to the Pinch Roller.
Fig. 2-14-B
Silicon Bond
Main Chassis
Fig. 2-14-C
Main Cam
Fig. 2-15-B
2-16: LOADING GEAR S/T UNIT (Refer to Fig. 2-16-A)
1.2.Remove the E-Ring and remove the Main Loading
1
Gear.
Remove the Main Rod, Tension Lever, Loading Arm S
Unit and Loading Arm T Unit.
1
Main Rod
Tension Lever
Main Loading Gear
Loading Arm T Unit
Loading Arm S Unit
- 8 -
Fig. 2-16-A
DISASSEMBLY INSTRUCTION
NOTE
When you install the Loading Arm S Unit, Loading Arm
1.
T Unit and Main Loading Gear, align each marker.
(Refer to Fig. 2-16-B)
Marker
Main Loading Gear
Marker
CASSETTE GUIDE POST/INCLINED BASE S/T
2-18:
UNIT/P4 CAP/LED REFLECTOR
(Refer to Fig. 2-18-A)
Remove the P4 Cap.
1.
Unlock the support and remove the Cassette Guide
2.
1
Post.
Remove the Inclined Base S/T Unit.
3.
Remove the screw .
4.
5.
Remove the LED Reflector.
2
Cassette Guide Post
1
Loading Arm T Unit
2-17:
CLUTCH ASS'Y/RING SPRING/CLUTCH LEVER/
Loading Arm S Unit
CLUTCH GEAR (Refer to Fig. 2-17-A)
Remove the Polyslider Washer .
1.
Remove the Clutch Ass'y and Ring Spring.
2.
Remove the Clutch Lever.
3.
4.
Remove the Coupling Gear, Coupling Spring and
1
Clutch Gear.
1
Clutch Ass'y
Ring Spring
Coupling Gear
Coupling Spring
Clutch Gear
Clutch Lever
Fig. 2-16-B
Inclined Base S
Unit
LED Reflector
• Screw Torque: 5 ± 0.5kgf•cm
2
Inclined Base T
Unit
P4 Cap
Fig. 2-18-A
NOTE
Do not touch the roller of Guide Roller.
1.
In case of the P4 Cap installation, install it with parallel
2.
for "A" and "B" of Fig. 2-18-B.
3.
In case of the Cassette Guide Post installation, install
correctly as the circled section of Fig. 2-18-C.
"A"
"B"
Fig. 2-17-A
NOTE
1.
In case of the Clutch Ass'y installation, install it with
inserting the spring of the Clutch Ass'y into the dent of
the Coupling Gear.
(Refer to Fig. 2-17-B)
Clutch Ass'y
Coupling Gear
Fig. 2-17-B
- 9 -
P4 Cap
[OK]
Cassette Guide Post
[NG]
Cassette Guide Post
Cassette Opener
Fig. 2-18-B
Fig. 2-18-C
DISASSEMBLY INSTRUCTION
3. REMOVAL OF DVD DECK PARTS
NOTE
1. Do not disassemble the DVD DECK PARTS except
listed parts here. Minute adjustments are needed if the
disassemble is done. If the repair is needed except
listed parts, replace the DVD MECHA ASS'Y.
3-1: TRAY (Refer to Fig. 3-1-A)
Set the Tray opened. (Refer to the DISC REMOVAL
1.
METHOD AT NO POWER SUPPLY)
2.
Unlock the support and remove the Tray.
Tray
NOTE
In case of the Tray installation, install them as the
1.
circled section of Fig. 3-1-B so that the each markers
are met.
1
Main Frame Ass'y
1
Fig. 3-1-A
NOTE
In case of the Main Chassis Ass'y, install it from (1) to
1.
(6) in order.
Move it to the direction
of the arrow.
(Refer to Fig. 3-2-B)
Rack Loading
1
Main Frame Ass'y
Main Chassis Ass'y
2
3
5
6
4
6
Check Lock
4
Fig. 3-2-B
3-3: RACK LOADING/MAIN GEAR/ RACK LOADING
SPRING (Refer to Fig. 3-3)
1.
Remove the Rack L Spring.
2.
Press down the catcher and slide the Rack Loading.
3.
Remove the Rack Loading, Rack Loading Spring and
Main Gear
.
1
5
Tray
Main Frame Ass'y
Fig. 3-1-B
3-2: MAIN CHASSIS ASS'Y (Refer to Fig. 3-2-A)
Remove the Main Chassis Ass'y from the Insulator (R).
1.
Unlock the support .
2.
3.
Remove the Main Chassis Ass'y.
Main Frame Ass'y
1
Insulator (R)
(Green)
1
Rack Loading
Rack Loading Spring
Rack L Spring
1
3-4:
CLAMPER ASS'Y/INSULATOR(R)/LEVER SWITCH
Main Gear
Main Frame Ass’y
(Refer to Fig. 3-4-A)
Remove the screw .
1.
Remove the Lever Switch.
2.
Remove the 2 Insulator (R).
3.
Press the Clamper and rotate the Clamper Plate
4.
clockwise, then unlock the 3 supports .
5.
Remove the Clamper Plate, Clamper Magnet and
1
2
Clamper.
Clamper Plate
Clamper Magnet
Insulator (R)
(Green)
Insulator (R)
(Green)
Fig. 3-3
Main Chassis Ass'y
Fig. 3-2-A
- 10 -
Lever Switch
Main Frame
2
2
1
Clamper
2
Fig. 3-4-A
DISASSEMBLY INSTRUCTION
NOTE
1.
When installing the Clamper Magnet, install it with the
green face up.
2.
When installing the wire of the Lever Switch, install it
correctly as Fig. 3-4-B.
3.
When installing the Lever Switch, install it correctly as
Fig. 3-4-C.
4.
In case of the Lever Switch installation, hook the wire
on the Main Frame as shown Fig. 3-4-D.
Lever Switch
Red
White
Blue
From DVD PCB
Fig. 3-4-B
The Lever should be position
between A and B.
Rack Loading
AB
Main Chassis Ass'y
Traverse Holder
Fig. 3-5-B
3-6: SWITCH PCB ASS'Y (Refer to Fig. 3-6-A)
Remove the screw .
1.
Remove the Switch PCB Ass'y.
2.
Switch PCB Ass'y
• Screw Torque: 4±
1
1
Main Chassis Ass'y
0.5kgf•cm
Fig. 3-6-A
NOTE
1.2.When installing the wire of the Switch PCB, install it
correctly as Fig. 3-6-B.
When installing the wire of the Switch PCB, while
pressing it in the direction of the arrow as shown Fig. 36-B, then instal it.
3-5:
TRAVERSE HOLDER/INSULATOR (F)
(Refer to Fig. 3-5-A)
Remove the Traverse Holder.
1.
Remove the 2 Insulator (F).
2.
Main Chassis Ass'y
Insulator (F)
(Black)
Traverse Holder
Insulator (F)
(Black)
Fig. 3-4-C
Lever Switch
Fig. 3-4-D
Fig. 3-5-A
Switch PCB Ass'y
Black
From Relay PCB
White
Main Chassis Ass'y
Fig. 3-6-B
3-7: RACK FEED ASS'Y (Refer to Fig. 3-7-A)
Remove the screw .
1.
2.
Remove the Rack Feed 1/2 Spring, Rack Feed 1/2 and
1
Rack Feed Lever.
1
Rack Feed 2
Rack Feed 1 Spring
Rack Feed 2 Spring
Rack Feed Lever
Rack Feed 1
Main Chassis Ass'y
NOTE
1. After the installing of the Traverse Holder, check if the
wire is like Fig. 3-5-B.
- 11 -
• Screw Torque: 3.5± 0.5kgf•cm
Fig. 3-7-A
DISASSEMBLY INSTRUCTION
NOTE
1.2.After the assembly of the Rack Feed, check if the Rack
Feed 1/2 is moving smoothly. (Refer to Fig. 3-7-B)
In case of the Rack Feed Ass'y installation, install
correctly as Fig. 3-7-C.
Moving smoothly
Moving smoothly
Check the position of
the Rack Feed Lever.
Should not be engaged.
Fig. 3-7-B
Fig. 3-7-C
3-8: RELAY PCB ASS'Y (Refer to Fig. 3-8-A)
Remove the screw .
1.
2.
Remove the Relay PCB Ass'y.
1
Main Chassis Ass'y
3-9: GEAR (Refer to Fig. 3-9-A)
Unlock the support .
1.
2.
Remove the Middle Gear 1/2/3, Idler Gear and Feed
1
Gear.
Middle Gear 2
Middle Gear 1
Middle Gear 3
Idler Gear
Feed Gear
1
Main Chassis Ass'y
Fig. 3-9-A
NOTE
1.2.In case of the Idler Gear installation, install correctly as
Fig. 3-9-B.
When installing the Middle Gear 2, check if the Middle
Gear 2 is locked correctly as Fig. 3-9-C.
[OK][NG]
Idler Gear
Idler Gear
Relay PCB Ass'y
1
Fig. 3-8-A
NOTE
1. When installing the wire of the Relay PCB, install it
correctly as Fig. 3-8-B.
Idler Arm
Check Lock
Middle Gear 2
Idler Arm
3-10: IDLER ARM (Refer to Fig. 3-10-A)
Remove the Idler Arm Spring.
1.
Remove the Chassis Spring.
2.
3.
Remove the Idler Arm.
Idler Arm Spring
Idler Arm
Main Chassis Ass'y
Fig. 3-9-B
Fig. 3-9-C
Fig. 3-8-B
Chassis Spring
Fig. 3-10-A
- 12 -
DISASSEMBLY INSTRUCTION
NOTE
1.
In case of the Idler Arm installation, install as the circled
section of Fig. 3-10-B.
2.
In case of the Idler Arm Spring installation, install as the
circled section of Fig. 3-10-C.
3.
In case of the Chassis Spring installation, install as the
circled section of Fig. 3-10-D.
Idler Arm
Main Chassis Ass'y
Fig. 3-10-B
Idler Arm Spring
NOTE
1.2.In case of the Motor Gear installation, check if the value
of the Fig. 3-11-B is correct.
When installing the Feed Motor, check if the cable is
positioned as Fig. 3-11-C.
Motor Gear
Feed Motor
Safety surface for pressing
of the insert.
Main Chassis Ass'y
6.1 0.1mm
Fig. 3-11-B
Feed Motor
Main Chassis Ass'y
Main Chassis Ass'y
3-11: FEED MOTOR (Refer to Fig. 3-11-A)
Remove the 2 screws .
1.
Remove the Feed Motor.
2.
Remove the Motor Gear.
3.
1
1
1
Fig. 3-10-C
Chassis Spring
Fig. 3-10-D
Pass the cable
between 2 pins.
Fig. 3-11-C
Motor Gear
Feed Motor
• Screw Torque: 1 ± 0.5kgf•cm
Main Chassis Ass'y
Fig. 3-11-A
- 13 -
MECHANICAL ADJUSTMENTS
1. CONFIRMATION AND ADJUSTMENT
Read the following NOTES before starting work.
•Place an object which weighs between 450g~500g on
the Cassette Tape to keep it steady when you want to
make the tape run without the Cassette Holder. (Do not
place an object which weighs over 500g.)
1-1: CONFIRMATION AND ADJUSTMENT OF REEL
DISK HEIGHT
1.
Turn on the power and set to the STOP mode.
2.
Set the master plane (JG022) and reel disk height
adjustment jig (JG024A) on the mechanism framework,
taking care not to scratch the drum, as shown in Fig. 1-1-A.
3.
While turning the reel and confirm the following points.
Check if the surface “A” of reel disk is lower than the
surface “B” of reel disk height adjustment jig (JG024A)
and is higher than the surface “C”. If it is not passed,
place the height adjustment washers and adjust to
10(+2, -0)mm.
4.
Adjust the other reel in the same way
Master Plane (JG022)
Reel Disk Height Adjustment Jig
(JG024A)
.
1-2: CONFIRMATION AND ADJUSTMENT OF TENSION
POST POSITION
1.
Set to the PLAY mode.
2.
Adjust the adjusting section for the Tension Arm
position so that the Tension Arm top is within the
standard line of Main Chassis.
3.
While turning the S Reel clockwise, confirm that the
edge of the Tension Arm is located in the position
described above.
Standard line of Main Chassis
Tension Arm
0.5mm (Adjusting range)
Fig. 1-2-A
Adjusting section for the
Tension Arm position
Tension Band
Master Plane (JG022)
10(+0.2, -0)mm
Reel Disk
(B)
Height Adjustment Washer
2.6x4.7xT0.13
2.6X4.7xT0.25
Fig. 1-1-A
Reel Disk Height
Adjustment Jig
(JG024A)
(C)
(A)
Fig. 1-1-B
The Tension Arm top will
move to the inside direction
of the Main Chassis.
Bend
The Tension Arm top will
move to the outside direction
of the Main Chassis.
Fig. 1-2-B
1-3: CONFIRMATION OF PLAYBACK TORQUE AND
BACK TENSION TORQUE DURING PLAYBACK
1.2.Load a video tape (E-180) recorded in standard speed
mode. Set the unit to the PLAY mode.
Install the tentelometer as shown in Fig. 1-3. Confirm that
the meter indicates 20 2gf in the beginning of playback.
• USING A CASSETTE TYPE TORQUE TAPE (JG100A)
1.
After confirmation and adjustment of Tension Post
position (Refer to item 1-2), load the cassette type
torque tape (JG100A) and set to the PLAY mode.
2.
Confirm that the right meter of the torque tape indicates
50~90gf•cm during playback in SP mode.
Confirm that the left meter of the torque tape indicates
3.
25~40gf•cm during playback in SP mode.
Tentelometer
Video Tape
- 14 -
P1 PostGuide Roller
Fig. 1-3
MECHANICAL ADJUSTMENTS
1-4: CONFIRMATION OF VSR TORQUE
1.2.Install the Torque Gauge (JG002F) and Adapter (JG002B)
on the S Reel. Set to the Picture Search (Rewind) mode.
(Refer to Fig.1-4-B)
Then, confirm that it indicates 120~180gf•cm.
NOTE
Install the Torque Gauge on the reel disk firmly. Press the
REW button to turn the reel disk.
1-5: CONFIRMATION OF REEL BRAKE TORQUE
(S Reel Brake) (Refer to Fig. 1-4-B)
1.
Once set to the Fast Forward mode then set to the Stop
mode. While, unplug the AC cord when the Pinch Roller
Block is on the position of Fig. 1-4-A.
2.
Move the Idler Ass’y from the S Reel.
3.
Install the Torque Gauge (JG002F) and Adapter
(JG002B) on the S Reel. Turn the Torque Gauge
(JG002F) clockwise.
4.
Then, confirm that it indicates 60~100gf•cm.
(T Reel Brake) (Refer to Fig. 1-4-B)
1.
Once set to the Fast Forward mode then set to the Stop
mode. While, unplug the AC cord when the Pinch Roller
Block is on the position of Fig. 1-4-A.
2.
Move the Idler Ass’y from the T Reel.
3.
Install the Torque Gauge (JG002E) and Adapter
(JG002B) on the T reel. Turn the Torque Gauge
(JG002E) counterclockwise.
4.
Then, confirm that it indicates 30~50gf•cm.
Stop at this position.
The position at
STOP mode.
Capstan DD Unit
The position at FF mode.
Pinch Roller Block
Cassette Opener
NOTE
If the torque is out of the range, replace the following parts.
Check item
1-4
1-5
S Reel side:
Replacement Part
Idler Ass’y/Clutch Ass’y
S Reel/Tension Band/Tension
Connect/Tension Arm Ass’y
T Reel side:
T Reel/T Brake Band//T Brake
Spring/T Brake
Arm
2. CONFIRMATION AND ADJUSTMENT
OF TAPE RUNNING MECHANISM
Ta pe Running Mechanism is adjusted precisely at the
factory. Adjustment is not necessary as usual. When you
replace the parts of the tape running mechanism because
of long term usage or failure, the confirmation and adjustment are necessary.
2-1: GUIDE ROLLER
1.
Playback the VHS Alignment Tape (JG001C or JG001E).
(Refer to SERVICING FIXTURE AND TOOLS)
2.
Connect CH-1 of the oscilloscope to TP103 (Envelope)
and CH-2 to TP102 (SW Pulse).
Trigger with SW Pulse and observe the envelope. (Refer
3.
to Fig. 2-1-A)
4.
When observing the envelope, adjust the Adjusting
Driver (JG005) slightly until the envelope will be flat.
Even if you press the Tracking Button, adjust so that
flatness is not moved so much.
Adjust so that the A : B ratio is better than 3 : 2 as shown
5.
in Fig. 2-1-B, even if you press the Tracking Button to
move the envelope (The envelope waveform will begin to
decrease when you press the Tracking Button).
6.
Adjust the PG shifter during playback.
(Refer to the ELECTRICAL ADJUSTMENTS)
NOTE
After adjustment, confirm and adjust A/C head.
(Refer to item 2-2)
Cassette Holder Ass’y
Torque Gauge/Adapter
(JG002F/JG002B)
S Reel
Torque Gauge/Adapter
(JG002E/JG002B)
T Reel
Fig. 1-4-A
Fig. 1-4-B
CH-1
Envelope
(TP103)
CH-2
SW Pulse (TP102)
Entrance
Max
AB
CH-1
Track
A : B
3 : 2
CH-2
Trac k
Fig. 2-1-A
Exit
Max
Fig. 2-1-B
- 15 -
MECHANICAL ADJUSTMENTS
2-2: CONFIRMATION AND ADJUSTMENT OF AUDIO/
CONTROL HEAD
When the Tape Running Mechanism does not work well,
adjust the following items.
1.
Playback the VHS Alignment Tape (JG001C or JG001E).
(Refer to SERVICING FIXTURE AND TOOLS)
2.
Confirm that the reflected picture of stamp mark is
appeared on the tape prior to P4 Post as shown in Fig.2-2-A.
a)
When the reflected picture is distorted, turn the screw
1 clockwise until the distortion is disappeared.
b)
When the reflected picture is not distorted, turn the
screw counterclockwise until little distortion is
1
appeared, then adjust the a).
3.
Turn the screw to set the audio level to maximum.
4.
Confirm that the bottom of the Audio/ Control Head and
2
the bottom of the tape is shown in Fig. 2-2-C.
c)
When the height is not correct, turn the screw to
adjust the height.
Then, adjust the 1~3 again.
Audio/Control Head
Reflected picture of
Stamp Mark
P4 Cap
3
2-3: TAPE RUNNING ADJUSTMENT
(X VALUE ADJUSTMENT)
1.
Confirm and adjust the height of the Reel Disk.
(Refer to item 1-1)
2.
Confirm and adjust the position of the Tension Post.
(Refer to item 1-2)
3.
Adjust the Guide Roller. (Refer to item 2-1)
4.
Confirm and adjust the Audio/Control Head.
(Refer to item 2-2)
5.
Connect CH-1 of the oscilloscope to TP102, CH-2 to
TP103 and CH-3 to pin 19 of J8004.
6.
Playback the VHS Alignment Tape (JG001U or JG001V).
(Refer to SERVICING FIXTURE AND TOOLS)
7.
Set the X Value adjustment driver (JG153) to the of
Fig. 2-2-B. Adjust X value so that the envelope waveform
output becomes maximum. Check if the relation between
Audio and Envelope waveform becomes (1) or (2) of Fig.
.
2-3
Envelope
(1)
CH-3
Audio
(2)
4
3
2
Audio/Control Head
Tap e
Stamp Mark
Audio/Control Head
1
4
Fig. 2-2-A
Fig. 2-2-B
0.25± 0.05mm
Fig. 2-3
2-4: CONFIRM HI-FI AUDIO (Hi-Fi model only)
1.
Connect CH-1 of the oscilloscope to TP103 and CH-2 to
the pin 19 of J8004.
2.
Playback the VHS Alignment Tape (JG001R).
(Refer to SERVICING FIXTURE AND TOOLS)
3.
Press the Tracking Up button and count number of steps
which the audio output is changed from Hi-Fi (10KHz) to
MONO (6KHz).
4.
Press the Tracking Down button and count number of
steps which the audio output is changed from Hi-Fi
(10KHz) to MONO (6KHz).
5.
If the difference are more than 3 steps, set the X Value
adjustment driver (JG153) to of Fig. 2-2-B. Change the
4
X Value and adjust it so that the value becomes within 2
steps.
Monoscope, 6KHz (For 2 head 1 speed model, 4 head model)
Color Bar, 1KHz (For 2 head 1 speed model, 4 head model)
Hi-Fi Audio (For Hi-Fi model)
X Value Adjustment (For 2 head 1 speed model, 4 head model)
Monoscope, 6KHz (For 2 head 2 speed model)
Color Bar, 1KHz (For 2 head 2 speed model)
X Value Adjustment (For 2 head 2 speed model)
VSR Torque, Brake Torque (S Reel/T Reel Ass'y)
Brake Torque (T Reel Ass'y)
VSR Torque, Brake Torque (S Reel)
Guide Roller Adjustment
X Value Adjustment
Reel Disk Height Adjustment
Reel Disk Height Adjustment
Playback Torque, Back Tension Torque During Playback
Used to connect the test point of SERVICE and GROUND
JG176APJG176034 Up-Date DiscUp-Date of the Firmware
PREPARATION FOR SERVICING
How to use the Servicing Fixture
1.
While pressing the POWER button on the set for more than 2 seconds, press the CH DOWN button on the set
simultaneously at the Power OFF. Although the DVD is connected, the DVD mode cannot be selected.
2.
Short circuit between TP3001 and Ground with the cable JG154.
(The BOT, EOT, and the Reel Sensor do not work and the VCR deck can be operated without a cassette tape.)
In case of using a cassette tape, press the TAPE EJECT button to insert or eject a cassette tape.
3.
Turn on the power and re-check the cable before checking the trouble points.
When you servicing with connection of DVD, perform the operations above step 2 to step 3.
- 18 -
PREVENTIVE CHECKS AND SERVICE INTERVALS
The following standard table depends on environmental conditions and usage.
Parts replacing time does not mean the life span for individual parts.
Also, long term storage or misuse may cause transformation and aging of rubber parts.
The following list means standard hours, so the checking hours depends on the conditions.
Time
Parts Name
Audio Control Head
Full Erase Head
(Recorder only)
Capstan Belt
Pinch Roller
Capstan DD Unit
Loading Motor
Tension Band
T Brake Band
Clutch Ass’y
Idler Arm Ass’y
Capstan Shaft
Tape Running
Guide Post
Cylinder Unit
: Clean
: Check it and if necessary
500
hours
1,000
hours
, replace it.
1,500
hours
2,000
hours
2,500
hours
Notes
Clean those parts in
contact with the tape.
Clean the rubber, and parts
which the rubber touches.
Replace when rolling
becomes abnormal.
Clean the Head
CONFIRMATION OF HOURS USED
PLAY/REC total hours can be checked on the screen.
Total hours are displayed in 16 system of notation.
NOTE: If you set a factory initialization, the total hours is reset to “0”.
1.
Connect the set to TV Monitor.
2.
Turn on the POWER.
3.
Press both CH UP button on the set and the FF button on the set for more than 2 seconds.
The Fig. 1 screen will appear on TV Monitor.
4.
After the confirmation of using hours, turn off the power.
INIT 0C6 06
PLA
Y/REC 0010
Fig. 1
Initial setting content of MEMORY IC.
PLAY/REC total hours.
= (16 x 16 x 16 x thousands digit value)
+ (16 x 16 x hundreds digit value)
+ (16 x tens digit value)
+ (ones digit value)
- 19 -
PREVENTIVE CHECKS AND SERVICE INTERVALS
CLEANING
NOTE
After cleaning the heads with isopropyl alcohol, do not
run a tape until the heads dry completely. If the heads
are not completely dry and alcohol gets on the tape,
damage may occur.
1. AUDIO CONTROL HEAD
Clean the Audio Control Head with the cotton stick
soaked by alcohol. Clean the full erase head in the
same manner. (Refer to the figure below.)
Audio Control Head
2. TAPE RUNNING SYSTEM
When cleaning the tape transport system, use the
gauze moistened with isopropyl alcohol.
3. CYLINDER
Wrap a piece of chamois around your finger. Dip it in
isopropyl alcohol. Hold it to the cylinder head softly.
Turn the cylinder head counterclockwise to clean it (in
the direction of the arrow). (Refer to the figure below.)
NOTE
Do not exert force against the cylinder head. Do not move
the chamois upward or downward on the head.
Use the chamois one by one.
Cylinder Head
- 20 -
SERVICE MODE LIST
This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily.
To enter to the SERVICE MODE function, press and hold both buttons simultaneously on the main unit or on the main unit
and on the remote control for more than a standard time (second).
Set Key
CH UP
CH UPSTOP2
CH UPPLAY2
CH DOWNPOWER2
Set Key
REC42
Set Key
FF2
Standard Time
(seconds)
Standard Time
(seconds)
Operations
PLAY/REC total hours are displayed on the TV Monitor.
Refer to the “PREVENTIVE CHECKS AND SERVICE INTERVALS”
(CONFIRMATION OF HOURS USED).
Can be checked of the INITIAL DATA of MEMORY IC.
Refer to the “WHEN REPLACING EEPROM (MEMORY) IC”.
Adjust the PG SHIFTER automatically.
Refer to the “ELECTRICAL ADJUSTMENT” (PG SHIFTER).
Initialization of the factory on VCR.
NOTE:
VCR operation mode at no connection of DVD.
Refer to the “PREPARATION FOR SERVICING”
NOTE:
Do not use this for the normal servicing.
If you set a factory initialization, the memories are reset such as
the clock setting, the channel setting, and PLAY/REC total hours.
Although the DVD is connected, the DVD mode cannot be
selected.
OperationsRemocon Key
Initialization of the factory on DVD.
NOTE: Do not use this for the normal servicing.
The function will only work without the setting of DVD disc at
DVD mode.
While pressing the Remocon Key for more than the Standard
Time, press the Set Key simultaneously
.
REC62
STOP13
STOP73
MethodOperations
Make the short circuit
between the test point of
SERVICE and the GND.
The BOT, EOT, and the Reel Sensor do not work and the VCR deck can be operated
without a cassette tape.
Refer to the “PREPARATION FOR SER
DVD Write mode.
Refer to the “RE-WRITE FOR DVD FIRMWARE”.
NOTE:
Check for the firmware version.
Refer to the “RE-WRITE FOR DVD FIRMWARE”.
NOTE:
Releasing of PARENTAL LOCK.
Refer to the “PARENTAL CONTROL - RATING LEVEL”.
NOTE:
Do not use this for the normal servicing.
The function will only work at the DVD stop mode.
Do not use this for the normal servicing.
The function will only work at the DVD stop mode.
The function will only work without the setting of DVD disc at
DVD mode.
VICING”
- 21 -
WHEN REPLACING EEPROM(MEMORY)IC
If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to
ensure correct data settings while making reference to T
Note: No need setting due to the adjustment value except the list below.
INIT
+0+1+2+3+4+5+6+7+8+9+A+B+C+D+E+F
0B0
---------------------------1D07AD20000238
0C0
441800999F0510B789AD AD9693880000
ABLE 1.
0D0
008942306056655F80972CFA5F0000
0E0
00000000000000000000005F00972CFA
0F0
5F CDC8022155803D6808893A99---------
100
0606D9009901D9009901030066F20000
00
Table 1
1.
Connect the set to TV Monitor.
2.
Turn on the POWER.
3.
Press both CH UP button on the set and the FF button on the set for more than 2 seconds.
ADDRESS and DATA will appear on TV Monitor as Fig 1.
ADDRESS
INIT 0B9 1D
Y/REC 0010
PLA
DAT
A
Fig. 1
4.
ADDRESS is now selected and should “blink”. Using the Tracking + or - button on the remote, step through the ADDRESS
until required ADDRESS to be changed is reached.
5.
Press ENTER to select DATA. When DATA is selected, it will “blink”.
6.
Again, step through the DATA using Tracking + or - button until required DATA value has been selected.
7.
Pressing ENTER will take you back to ADDRESS for further selection if necessary.
8.
Repeat steps 4 to 7 until all data has been checked.
9.
When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.
After the data input, set to the initializing of shipping.
10.
Turn POWER on.
11.
Press both CH UP button on the set and the PLAY button on the set for more than 2 seconds.
After the finishing of the initializing of shipping, the unit will turn off automatically.
12.
The unit will now have the correct DATA for the new MEMORY IC.
- 22 -
RE-WRITE FOR DVD FORMWARE
Turn on the power, and set the DVD mode.
1.
Confirm that the “No Disc” will be appeared on the screen.
2.
Open the DVD tray.
3.
Press both Channel button (6) on the remote control and the REC button on the set for more than 2 seconds.
4.
Press OPEN/CLOSE button on the unit to check if all the keys on the unit do not function.
5.
NOTE: To check if DVD Write mode is set.
Up-Date can be done at Non DVD Write mode. But the read error may occur.
Place the Up-Date Disc and close the tray by hand. (Refer to SERVICING FIXTURE AND TOOLS)
6.
Automatic read will start and "Firmware upgrade" will be displayed on the screen.
7.
Approxi. 60 seconds later, the tray will open automatically. Remove the Up-Date Disc.
8.
Then, Approxi. 50 seconds later, the above indication will disappear and the tray will close automatically.
9.
When the "No Disc" appears on the screen, the write will end.
NOTE: Do not turn off the unit on the way or push the tray by hand to close it.
Up-Date error will happen and can not be done with the Up-Date of Up-Date Disc.
Unplug the AC cord, then plug it in.
10.
After the write, set to the initializing of shipping.
11.
Set to the DVD mode, press both Channel button (4) on the remote control and the REC button on the set for more than 2
seconds.
The "INITIALIZE 7 ---> COMPLETE" will appear on the screen.
Then unplug the AC cord, and plug it in.
12.
CHECK FOR THE FIRMWARE VERSION
13.
Set to the DVD mode, press both Channel button (1) on the remote control and the STOP button on the set for more than 3
seconds.
Firmware version will be displayed on the top left of the screen.
When the changed version displays, the Re-write will be completed.
14.
Turn off the power
No Disc
GMJ36101
G M J 3 6 1 0 1
Fixed
Released times on the same date
Release date (Example: 2003.6.10)
When the changed version displays, the Re-write will be completed.
A = October
B = November
C = December
- 23 -
ELECTRICAL ADJUSTMENTS
Read and perform this adjustment when repairing the
circuits or replacing electrical parts or PCB assemblies.
1. BASIC ADJUSTMENT
CAUTION
When you exchange IC and Transistor for a heat sink,
•
apply the silicon grease (YG6260M) on the contact
section of the heat sink. Before applying new silicon
grease, remove all the old silicon grease. (Old grease
may cause damages to the IC and Transistor.)
Connect CH-1 on the oscilloscope to TP102 and CH-2
1.
to the Pin 19 of J8004.
Playback the alignment tape. (JG001B)
2.
Press and hold the Tracking-Auto button on the remote
3.
control more than 2 seconds to set tracking to center.
Press both CH UP button on the set and the STOP
4.
button on the set for more than 2 seconds.
6.5H
CH-2
CH-1
Fig. 1-1-A
CH-2
CH-1
6.5H
Fig. 1-1-B
- 24 -
ELECTRICAL ADJUSTMENTS
2. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION)
POWER PCB
TU301
TP3001
TP103
CP103
TP102
J653
J652
FE HEAD
J651
CP102
CD102
AC HEAD
VCR PCB
OS651
J8004
V651
TU302
CP8002
CP1701
CP8001
CP1702
CP651
CD8002
CD8001
CD502
CP8102
CP4002
DVD PCB
S503
S502
CP2601
CP2603
CP2602
AC IN
CD501
J8101
CP8101
CD2001
CP601
OPERATION PCB
CD651
DVD DECK
CD2301
CD2302
- 25 -
TROUBLE SHOOTING GUIDE
(VCR SECTION)
POWER DOES NOT TURN ON
Does display light?
YES
Is there voltage at
pin 16 of IC 3001?
YES
Check of T501
and peripheral circuit.
NO
NO
Is the voltage
linked to 1, 2, 3, 8 pin
of CP502?
YES
Check IC651.
NO
Check of T501
and peripheral circuit.
Check IC3001.
THE POWER SUPPLY CUT
Inserting a casette
and push play button.
Does the power cut
after 3 seconds?
NO
Does the power cut
after about 6 seconds?
NO
YES
YES
Check CAPSTAN DD UNIT
and CYLINDER UNIT.
Check Q3001,Q3002
and CAPSTAN BELT.
Check the POWER BLOCK.
- 26 -
TROUBLE SHOOTING GUIDE
AT PLAYBACK AND RECORDING,
CYLINDER MOTOR UNLOAD
Is the voltage at pin 8 of
CP3001 about DC12.6V?
YES
In playback,is at pin 12 of
CP3001 about DC2.6V?
YES
Check the DECK BLOCK.
AUDIO SHAKES
NO
NO
Check T501.
Check IC3001.
Is AUDIO HEAD
scratched?
NO
At playback,is input about
4.5Vp-p of a rectangular
wave at pin 87 of IC3001?
YES
At playback,is pin 5 of
CP3001 3.5V?
YES
Check AUDIO BLOCK.
YES
NO
NO
Change AUDIO HEAD.
Change CAPSTAN DD UNIT.
Check IC3001.
- 27 -
TROUBLE SHOOTING GUIDE
The CASSETTE TAPE
CAN NOT BE INSERTED
Does WORM GEAR of
cassette loading block
move?
YES
When a CASSETTE can
not inserted, is pin 4 of
IC3001 5V ?
YES
When a CASSETTE is
inserted, is pin 8 of
CP3001 12.6V ?
NO
Check circuit of POWER BLOCK.
NO
NO
YES
Check WORM GEAR
of cassette loading block.
Check LED of DECK,
PHOTO SENSOR.
Change
LOADING MOTOR.
CAN NOT FF/REW
At FF/REW, does voltage
at pin11 of IC3001
change?
YES
Check DECK MECHANISM.
NO
Check of IC3001.
- 28 -
TROUBLE SHOOTING GUIDE
WHEN INSERTING A CASSETTE,
IT EJECTS IMMEDIATELY
Does another CASSETTE
insert?
YES
Does SW3001 and
REC LEVER
correctly set ?
YES
After inserting
CASSETTE, is pin 84
of IC3001 0V ?
YES
Check IC3001.
NO
NO
NO
Defective CASSETTE
or cassette loading block.
Correctly SW3001
and REC LEVER set.
Check SW3001.
AT PLAY, THE PICTURE
JITTERS VERTICAL MINUTELY
Is FG wave of CP3001
at pin 11 5V ?
5V
YES
Is pin 12 of CP3001 2.6V ?
YES
Change CYLINDER MOTOR.
NO
NO
Change
CYLINDER MOTOR.
Change IC3001.
- 29 -
TROUBLE SHOOTING GUIDE
TAPE LOADING IS OK, BUT
UNLOADS IMMEDIATELY
Does CYLINDER
rotate?
YES
Is there HEAD SW
PULSE at TP102.
YES
NO
NO
Is the voltage
at pin 10 of CP502
13V ?
YES
At play, is the voltage
at pin 12 of CP3001 2.6V ?
YES
Change CYLINDER unit.
NO
Is PG PULSE signal
inputted to pin 90
of IC3001 ?
YES
NO
NO
Check POWER BLOCK.
Check Q3001 and Q3002.
AUTO TRACKING
DOES NOT OPERATE
In auto tracking, is the
voltage at pin 6 of IC3001
more than DC 0.2V?
YES
NO
Change IC3001.
Does the CTL pulse
signal (about 2.5Vp-p)
appear at pin 97 of IC3001.
2.5Vp-p
YES
NO
Check CONTROL HEAD.
Change IC3001.
- 30 -
TROUBLE SHOOTING GUIDE
WHEN PLAYBACK, FF OR REW
MODE IS ACTIVE, UNIT STOPS
IMMEDIATELY
Does CAPSTAN DD
MOTOR rotate?
YES
Is there REEL SENSOR
PULSE signal at pin 79
and pin 80 of IC3001.
YES
Change IC3001.
AT PLAYBACK, THE COLER DOES
NOT APPEAR
NO
NO
Refer to section "CAPSTAN
DD MOTOR NOT
ROTAING".
Check Q3008 and Q3009.
Is there color signal in
video signal at pin 29 of
IC101.
YES
NO
Is there video signal at pin
29 of IC101.
YES
Change IC101.
NO
Change X'tal.
- 31 -
TROUBLE SHOOTING GUIDE
AT PLAY, PICTURE JITTERS
HORIZONTALLY
NO
Does a noise on the picture
appear?
YES
By adjusting the MANUAL
TRACKING UP/DOWN
BUTTONS, will the line
disappear?
YES
Is a height of GUIDE POST
maximum?
YES
Is PG SHIFTER
adjustment 6.5H?
NO
NO
NO
Check P/B ENVELOPE.
The height of GUIDE POST
readjust.
Adjust PG SHIFTER.
YES
Is a wave of PB-Y unusual?
YES
Change IC101.
NO
Change IC101
and peripheral circuit.
- 32 -
TROUBLE SHOOTING GUIDE
AT PLAYBACK, THE PICTUER
DOES NOT APPEAR
Does E-E picture
appear?
YES
Is there video signal
of IC101 at pin 29?
YES
Is there video signal
of IC3001 at pin 52?
YES
Is there video signal
of IC8001 at pin 25?
NO
NO
NO
NO
Is the voltage of IC101 at
pin 4, 22, 47, 59, 60,and 84
5V?
YES
NO
Check POWER BLOCK.
Change IC101.
Change IC3001.
Change IC8001.
YES
Check J8004.
NO COLER DURING SELF
RECORDING AND PLAYBACK
Is there CHROMA signal at
pin 17, 19 and 21 of IC101.
YES
Is there CHROMA signal at
pin 29 of IC101.
NO
NO
Check TU301, J653,J8004
IC8001 circuit around it.
Change IC101.
YES
Check circuit around of J8004.
- 33 -
TROUBLE SHOOTING GUIDE
PLAYBACK PICTURE IS NOISY
(EVEN AFTER CLEANING HEADS)
Is noisy a wave of video
signal at pin 29 of IC101?
YES
Is noisy a wave of video
signal at pin 25 of IC8001?
NO
Check J8004.
CAPSTAN DD MOTOR NOT
ROTATING
NO
YES
Check CYLINDER.
Check IC8001.
In playback,is there voltage at
pin 2 of IC3001 12V?
YES
In playback,is there voltage at
pin 78 of IC3001 2.5V?
YES
DD MOTOR rotate now?
If not, replace it.
NO
NO
Check POWER BLOCK.
Change IC3001.
- 34 -
TROUBLE SHOOTING GUIDE
AT PLAY, AUDIO DOES NOT
APPEAR
At E-E, does audio appear?
YES
Is the voltage at pin 97 of
IC101 about 2.5V?
YES
Is there audio signal at pin
6 of IC101?
YES
Is there audio signal at pin
24, 27 of IC701?
NO
NO
NO
YES
Refer to section"E-E DOES
NOT APPEAR".
Check A/C HEAD.
Check circuit around at pin
6 of IC101.
Check circuit around at pin
24, 27 of IC701.
NO
Check whether there are not a
damage, dirt in AUDIO HEAD.
- 35 -
TROUBLE SHOOTING GUIDE
THE AUDIO CAN NOT RECORD
Is bias level at L102 OK?
YES
Is there audio signal at
pin 1 of IC101?
YES
Is there voltage of
base of Q101 about
5V?
YES
NO
NO
In starting recording,
is there sine wave at
pin 98 of IC101?
Check disconnection and short
of L102.
YES
NO
Check POWER BLOCK and
voltage of base of Q101.
Check IC701 and
the circuit from TUNER
or audio input juck to IC01.
Change Q101.
Is there Asin wave at
pin 5 of L101?
YES
Check lead wire of A/C HEAD
and CONNECTOR.
NO
Change L102.
- 36 -
TROUBLE SHOOTING GUIDE
THE CASSETTE INSERT, BUT
THE TAPE DOES NOT MOVE
Does the mode
appear at display?
YES
Does operate with
remote control?
YES
Check operation PCB.
NO
NO
Check LOADING MOTOR and
MODE SENSOR
RELATION DEPARTMENT.
Check IC3001.
- 37 -
TROUBLE SHOOTING GUIDE
RECORDING MECHANISM WORKS,
BUT NO VIDEO RECORD FROM
INPUT JACK OR TUNER
Is there video signal at
pin 17, 19 and 21 of
IC 101?
YES
Is the BASE of
Q101 5V?
YES
Is there video signal
at pin 29 of IC101?
NO
NO
NO
Is the voltage at pin 41
of IC3001 5V?
YES
Check cricuit of video signal from
VIDEO IN or
TUNER to IC101.
NO
Change IC3001.
Change IC101.
YES
Check CYLINDER UNIT and
circuit around of CP101.
- 38 -
TROUBLE SHOOTING GUIDE
E-E DOES NOT APPEAR
(THE PICTURE DOES NOT
APPEAR FROM TUNER)
Does normality AUDIO JACK
CONNECT?
YES
Are there thevoltage
of MB(5V), PB(5V),
TU(32V) of TU301?
YES
Check the picture.
Is there video signal at
pin 24 of TU301?
NO
NO
NO
Connection is done over again.
Check POWER BLOCK.
Change TU301.
YES
Is there video signal
at pin 29 of IC101?
YES
Is there video signal at
pin 52 of IC3001?
YES
Check J8004.
NO
NO
Change IC101.
Change IC3001.
- 39 -
TROUBLE SHOOTING GUIDE
E-E AUDIO (MONO)
DOES NOT APPEAR
Does E-E AUDIO
(STEREO) appear?
YES
Is the voltage at pin 98
of IC101 5V?
YES
Is the voltage at pin 74
of IC3001 5V?
NO
Is there audio signal at
pin 11, 73 of IC701?
NO
NO
YES
NO
Refer to section "E-E AUDIO
(STEREO) DOES NOT APPEAR".
Check POWER BLOCK.
Change IC3001.
Check J651, J652.
YES
Is there audio signal at
pin 6 of IC701?
YES
Check circuit around of J8004.
NO
Change IC701.
- 40 -
TROUBLE SHOOTING GUIDE
E-E AUDIO (STEREO)
DOES NOT APPEAR
Is the voltage at pin 5,32
of IC701 5V?
YES
Is the voltage at pin
3 of IC701 9V?
YES
Is there Audio signal at
pin 11, 73 of IC701?
YES
Is there Audio signal at
pin 78, 80 of IC701.
NO
NO
NO
NO
Check POWER BLOCK.
Check POWER BLOCK.
Check J651, J652.
Change IC701.
YES
Check circuit around of J8004.
- 41 -
TROUBLE SHOOTING GUIDE
TUNER AUDIO (MONO)
DOES NOT APPEAR
Does E-E AUDIO
(MONO) appear?
YES
Is there signal at pin
38 of IC801?
YES
Is there audio signal at
pin 78, 80 of IC701?
YES
Is there audio signal at
pin 41, 44 of IC8001?
NO
NO
NO
NO
Refer to section "E-E AUDIO
(MONO) DOES NOT APPEAR".
Check circuit around of TU301
at pin 22.
Change IC701.
Check IC8001.
YES
Check circuit around of J8004.
- 42 -
TROUBLE SHOOTING GUIDE
TUNER AUDIO (STEREO)
DOES NOT APPEAR
Does TUNER AUDIO
(MONO) appear?
YES
Does E-E AUDIO
(STEREO) appear?
YES
At the time of channel
change,does the display of a
stereo come out to the screen?
YES
Is there audio signal at
pin 38 of IC801?
NO
NO
NO
NO
Refer to section "TUNER AUDIO
(MONO) DOES NOT APPEAR".
Refer to section "E-E AUDIO
(STEREO) DOES NOT APPEAR".
Change IC701.
Check ciruit around of TU301.
YES
Is there audio signal at
pin78, 80 of IC701?
YES
Is there audio signal at
pin 41, 44 of IC8001?
YES
Check circuit around of J8004.
NO
NO
Change IC701.
Check IC8001.
- 43 -
TROUBLE SHOOTING GUIDE
PB AUDIO (Hi-Fi)
DOES NOT APPEAR
Does E-E AUDIO
(STEREO) appear?
YES
Does NORMAL PB
AUDIO appear?
YES
Is there audio signal at
pin 24, 27 of IC701?
YES
Is there audio signal at
pin 78, 80 of IC701?
NO
NO
NO
NO
Refer to section "E-E AUDIO
(STEREO) DOES NOT APPEAR".
Refer to section "AT PLAY,
AUDIO DOES NOT APPEAR".
Check circuit of HEAD AMP
and CYLINDER UNIT.
Change IC701.
YES
Check circuit around of J8004.
- 44 -
TROUBLE SHOOTING GUIDE
Hi-Fi AUDIO
CAN NOT RECORD
Does E-E AUDIO appear?
YES
AT state of video recording,
is there audio signal at
pin 11 and 73 of IC701?
YES
Is there audio signal at
pin 78, 80 of IC701?
YES
At recording and play,is
there signal at pin 7, 8
and 9 of CP101?
NO
NO
NO
NO
Refer to section "E-E AUDIO
(MONO) DOES NOT APPEAR".
Check circuit arounf of J651,
J652 and TU301.
Change IC701.
Check CYLINDER UNIT.
YES
Check IC701.
- 45 -
TROUBLE SHOOTING GUIDE
(RADIO SECTION)
NO SOUND OF RADIO
Is the voltage linkd to
8,10 pin of CP8003?
Yes
Is there a waveform at
65,67 pin of IC701
Yes
Check of IC701 and
perpheral circuit.
(DVD SECTION)
DECK DOES NOT ACCEPT
OPEN/CLOSE
No
No
Check of POWER BLOCK.
Check of RADIO PACK
and peripheral circuit.
Is the voltage at pin 3 and
14 of IC2301 about DC9V ?
Yes
Is the lose connection
at CD2602 & CD2603 to
DECK ?
No
Check loader block.
No
Yes
Check P.CON 9V line of
POWER BLOCK.
Check CD2602 & CD2603
connection to DECK.
- 46 -
TROUBLE SHOOTING GUIDE
NO PLAYBACK PICTURE
OF AV JACK
Is there a oltage
(beam current) at
TP40 and TP42?
No
Is there a signal at
pin 9,10,11 and 12
of IC2601?
No
Is there a signal at
pin 9,10,11 and 12
of IC2601?
No
Yes
Yes
Yes
Check loader block
Check CP2601
and peripheral circuit.
Check IC2601
and peripheral circuit.
.
Is there video signal
at pin 159 of IC4001?
No
Change IC4001.
NO AUDIO ON PLAYBACK
Is there AUDIO signal at
pin 9,10,11,12,13 and 14
of IC7302 ?
No
Yes
Yes
Check IC8001
and peripheral circuit.
Check IC7302 and
peripheral circuit.
Change IC4001.
- 47 -
TROUBLE SHOOTING GUIDE
NO PLAYBACK PICTURE OF
S-VIDEO JACK
Is there Y signal at
pin 161 of IC4001 ?
No
Is there VIDEO signal
at pin 162 of IC4001 ?
Yes
Change IC4001.
NO COLOR PLAYBACK PICTURE
OF S-VIDEO JACK
Yes
No
Check J8101 and peripheral
circuit.
REFER TO "NO PLAYBACK
PICTURE OF AV JACK ".
Is there C signal at
pin 162 of IC4001 ?
No
Is there Y signal at
pin 161 of IC4001?
Yes
Is there VIDEO signal
at pin 162 of IC4001?
No
Is the voltage at pin 25,
64, 93,123,140 and 192
of IC4001 about 1.8V?
Yes
No
Yes
No
Check J8101 and peripheral
circuit.
REFER TO "NO PLAYBACK
PICTURE OF S-VIDEO JACK".
REFER TO "NO PLAYBACK
PICTURE OF AV JACK" .
Check P.CON+3.3V line on
POWER BLOCK.
Yes
Change IC4001.
- 48 -
TROUBLE SHOOTING GUIDE
(SPEAKER SECTION)
ALL SPEAKER NO SOUND
Is there voltage at
CP5502 and CP5503?
YES
Is there voltage at
pin 9 of J5501?
YES
Is there voltage at
pin 8 of J5501?
NO
Check SPEAKER MAIN PCB.
NO
YES
Check of fuse.
F5402 ~ F5404
(Open?)
YES
NO
Check of CD5403
and CD5404.
Check DVD/VR SET.
Check of mute circuit.
- 49 -
TROUBLE SHOOTING GUIDE
FRONT SPEAKER NO SOUND.
Is there waveform at
pin 6 and 7 of J5501?
YES
Is there voltage at
pin 1,3,6 of IC5501?
YES
Is there voltage at
pin 5 of IC5501?
Check of IC5501.
YES
NO
NO
NO
Check DVD/VR SET.
Check of DIODE.
D5502 ~ D5509
Check Q5515.
- 50 -
TROUBLE SHOOTING GUIDE
SURROUND SPEAKER NO SOUND.
Is there waveform at
pin 4 and 5 of J5501?
YES
Is there voltage at
pin 1,3,6 of IC5502?
YES
Is there voltage at
pin 5 of IC5502?
YES
Check of IC5502.
NO
NO
NO
Check DVD/VR SET.
Check of DIODE.
D5502 ~ D5509
Check Q5517.
- 51 -
TROUBLE SHOOTING GUIDE
CENTER SPEAKER NO SOUND.
Is there waveform at
pin 3 of J5501?
YES
Is there voltage at
pin 7,8,13,15 of IC5503?
YES
Is there voltage at
pin 9,10 of IC5503?
YES
Check of IC5503.
NO
NO
NO
Check DVD/VR SET.
Check of DIODE.
D5502 ~ D5509
Check Q5512.
SUB WOOFER SPEAKER
NO SOUND.
Is there waveform at
pin 2 of J5501?
YES
Is there voltage at
pin 7,8,13,15 of IC5504?
YES
Is there voltage at
pin 9,10 of IC5504?
NO
NO
NO
Check DVD/VR SET.
Check of DIODE.
D5501
Check Q5513.
YES
Check of IC5504.
- 52 -
RE-WRITE FOR DVD FIRMWARE
Turn on the power, and set the DVD mode.
1.
Confirm that the “No Disc” will be appeared on the screen.
2.
Open the DVD tray.
3.
Press both Channel button (6) on the remote control and the REC button on the set for more than 2 seconds.
4.
Press OPEN/CLOSE button on the unit to check if all the keys on the unit do not function.
5.
NOTE: To check if DVD Write mode is set.
Up-Date can be done at Non DVD Write mode. But the read error may occur.
Place the Up-Date Disc and close the tray by hand. (Refer to SERVICING FIXTURE AND TOOLS)
6.
Automatic read will start and "Firmware upgrade" will be displayed on the screen.
7.
Approxi. 60 seconds later, the tray will open automatically. Remove the Up-Date Disc.
8.
Then, Approxi. 50 seconds later, the above indication will disappear and the tray will close automatically.
9.
When the "No Disc" appears on the screen, the write will end.
NOTE: Do not turn off the unit on the way or push the tray by hand to close it.
Up-Date error will happen and can not be done with the Up-Date of Up-Date Disc.
Unplug the AC cord, then plug it in.
10.
After the write, set to the initializing of shipping.
11.
Set to the DVD mode, press both Channel button (4) on the remote control and the REC button on the set for more than 2
seconds.
The "INITIALIZE 7 ---> COMPLETE" will appear on the screen.
Then unplug the AC cord, and plug it in.
12.
CHECK FOR THE FIRMWARE VERSION
13.
Set to the DVD mode, press both Channel button (1) on the remote control and the STOP button on the set for more than 3
seconds.
Firmware version will be displayed on the top left of the screen.
When the changed version displays, the Re-write will be completed.
14.
Turn off the power
No Disc
GMJ36101
G M J 3 6 1 0 1
Fixed
Released times on the same date
Release date (Example: 2003.6.10)
When the changed version displays, the Re-write will be completed.
A = October
B = November
C = December
- 53 -
EXPLODED VIEW (CABINET & CHASSIS)
205
205
205
126
132
201
118
130
202
201
115
105
104
103
109
102
CD102
109
125
CD8002
103
203
107
CP1702
PCB010
(VCR PCB ASS'Y)
127
208
123
108
CD8001
CD502
204
202
116
106
204
110
124
209
208
208
PCB240
117
(POWER PCB ASS'Y)
203
202
206
123
205
CD501
204
119
PCB130
(DVD PCB ASS'Y)
202
112
205
101F
101K
101H
101B
128
101G
129
101C
101A
101D
101G
101F
101H
101E
101K
101C
101I
101J
101
101I
202
207
CD651
207
PCB270
(OPERATION PCB ASS'Y)
120
- 54 -
202
111
131
202
121
114
204
113
206
204
122
208
PARTS LIST
PRODUCT SAFETY NOTICE
EACH PRECAUTION IN THIS MANUAL SHOULD BE FOLLOWED DURING SERVICING. COMPONENTS IDENTIFIED WITH THE
!!
IEC SYMBOL
BE OF SPECIAL SIGNIFICANCE. WHEN REPLACING A COMPONENT IDENTIFIED BY
DESIGNATED, OR PARTS WITH THE SAME RATINGS OF RESISTANCE, WATTAGE OR VOLTAGE THAT ARE DESIGNATED IN
THE PARTS LIST IN THIS MANUAL. LEAKAGE-CURRENT OR RESISTANCE MEASUREMENTS MUST BE MADE TO DETERMINE
THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNING THE PRODUCT TO
THE CUSTOMER.
CAUTION :Regular type resistors and capacitors are not listed. To know those values, refer to the schematic diagram.
IN THE PARTS LIST AND THE SCHEMATIC DIAGRAM DESIGNATED COMPONENTS IN WHICH SAFETY CAN
!!
!
, USE ONLY THE REPLACEMENT PARTS
Regular type resistors are less than 1/4 W carbon type and 0 ohm chip resistors.
Regular type capacitors are less than 50 V and less than 1000 µF type of Ceramic type and Electrical type.
REF.NO. PART NO. DESCRIPTION
115645 054 7539 COVER,AC HEAD
116645 064 5136 SHIELD,POEWR-PCB
Do not replace the parts. Because,
minute adjustments are needed if
this condition is disassembled
further more.
If the repair is needed, replace the
DVD MECHA ASS'Y.
625
AB
AB
622
623
AB
624
620
611
AA
CLASS
GREASE
PART NO.
Y315061000
Y315121000
Y315131000
PART NAME
G-555G
G-337FAB
SF-112
MARK
AA
AC
- 60 -
NOTE:
Applying positions AA, AB and AC for the
grease are displayed for this section.
Check if the correct grease is applied for each
position.