Sanyo DC-TS3000 User manual

FILE NO.
Service Manual
CONTENTS
DVD & Hi-Fi VCR
Home Theater System
DC-TS3000
PRODUCT CODE No.
129 673 04
REFERENCE No. SM5810453
Important warning ............................................................ 1
Service notice on checking .............................................. 1
How to order parts ........................................................... 1
Disassembly instruction ................................................... 2
Mechanical and adjustment ............................................. 14
Service fixtures and tools ................................................. 18
Preparation for servicing .................................................. 18
Preventive check and service intervals ............................ 19
Service mode list .............................................................. 21
When replacing EEPROM(MEMORY) IC ........................ 22
Re-write for DVD firmware ............................................... 23
Electrical adjustment ........................................................ 24
Trouble shooting guide .................................................... 26
Exploded View (Cabinet & Chassis) ................................ 54
Parts List .......................................................................... 55
Exploded View (DVD Mechanism) and Parts list ............. 60
Exploded View (VCR Mechanism) and Parts list ............. 62
Exploded View (Speaker) and Parts list ........................... 65
IC Block Diagram & Description ....................................... 68
Interconnection Diagram .................................................. 74
Block Diagram .................................................................. 76
Schematic Diagram and Check for Waveform ................. 84
Waveform of Check Point ................................................ 115
Wiring Diagram ............................................................... 120
(XE)

- 1 -
IMPORTANT WARNING
SERVICE NOTICE ON CHECKING
CAUTION:
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.
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.
(Printed on the Rear Panel)
CLASS 1
LASER PRODUCT
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.
PERFORM A SAFETY CHECK AFTER
SERVICING
4.
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.
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.
1. KEEP THE NOTICES 3. PUT PARTS AND WIRES IN THE
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.
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.
HOW TO ORDER PARTS

- 2 -
DISASSEMBLY INSTRUCTION
1.
1-1:
Fig. 1-1
REMOVAL OF MECHANICAL PARTS
AND P.C. BOARDS
TOP CABINET AND FRONT CABINET
(Refer to Fig. 1-1)
1.
2.
3.
4.
5.
6.
7.
Remove the 5 screws .
Remove the Top Cabinet in the direction of arrow (A).
Disconnect the following connector: (CP651).
Unlock the 8 supports .
Remove the Front Cabinet in the direction of arrow (B).
Remove the 4 screws .
Remove the Operation PCB in the direction of arrow (C).
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).
Fig. 1-2
(A)
Flap
(B)
(C)
1.
2.
3.
4.
5.
6.
7.
8.
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.
Unlock the support and remove the Deck Top Holder
in the direction of arrow (A).
Remove the 3 screws .
Remove the screw .
Disconnect the following connectors: (CP2601,
CP2602, CP2603).
Remove the DVD Deck in the direction of arrow (B).
Remove the 3 screws .
Remove the Front Angle in the direction of arrow (C).
Fig. 1-3
1-3: DVD DECK (Refer to 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.
Make the sort circuit
using a soldering.
Pick Up PCB
Deck Top Holder
(A)
DVD Deck
(C)
Front Angle
(B)
Top Cabinet
Front Cabinet
(B)
Operation PCB
Fig. 1-4
Power PCB
DVD Angle
1-4: POWER PCB (Refer to Fig. 1-4)
1. Remove the 3 scres .
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.
1
2
1
1
1
1
1
2
22
2
2
2
2
2
(C)
(A)
3
33
3
3
1
1
2
2
2
2
3
3
4
4
4
4
1
1
1
1
2
2

- 3 -
DISASSEMBLY INSTRUCTION
VCR PCB
3 Pin Shield
Fiber Washer
VCR Deck
FE Head
AC Head Cover
1-7: VCR PCB (Refer to Fig. 1-7)
1.
2.
3.
4.
5.
6.
Remove the screw and remove the Fiber Washer.
Remove the 4 screws .
Remove the screw .
Remove the screw .
Remove the 3 Pin Shield.
Remove the VCR PCB in the direction of arrow.
Fig. 1-7
1-6: VCR DECK (Refer to Fig. 1-6)
1.
2.
3.
4.
5.
6.
Move the Cassette Holder Ass’y to the back side.
Remove the screw .
Remove the FE Head.
Remove the 3 screws .
Disconnect the following connectors: (CP101, CP102,
and CP3001).
Remove the AC Head Cover and VCR Deck in the
direction of arrow.
1-5: DVD PCB (Refer to Fig. 1-5)
1.
2.
3.
4.
Remove the 3 screws .
Remove the screw .
Disconnect the following connectors: (CP4002, CP8101
and CP8102).
Remove the DVD PCB in the direction of arrow.
Fig. 1-5
Do not remove the cable at the FE Head section. The FE
Head may be damaged if you remove the cable by force.
NOTE
Fig. 1-6
DVD PCB
1
2
1
1
1
2
1
2
1
2
2 2
1
2
3
4
2 2
2
2
3
4

- 4 -
DISASSEMBLY INSTRUCTION
2. REMOVAL OF VCR DECK PARTS
2-1: TOP BRACKET (Refer to Fig. 2-1)
Extend the 2 supports .
Slide the 2 supports and remove the Top Bracket.
1.
2.
2-2: CASSETTE HOLDER ASS'Y (Refer to Fig. 2-2)
Move the Cassette Holder Ass'y to the front side.
Push the Locker R to remove the Cassette Side R.
Remove the Cassette Side L.
1.
2.
3.
Fig. 2-1
Main Chassis
Main Chassis
Top Bracket
Top Bracket
Main Chassis
Main Chassis
Cassette Side L
Cassette Side R
Locker R
Fig. 2-2
2-3: CASSETTE SIDE L/R (Refer to Fig. 2-3-A)
Remove the Locker Spring.
Unlock the 4 supports and then remove the Cassette
Side L/R.
Unlock the support and then remove the Locker R.
1.
2.
3.
Link Unit
2-4: LINK UNIT (Refer to Fig. 2-4)
Set the Link Unit to the Eject position.
Unlock the support .
Remove the (A) side of the Link Unit first, then remove
the (B) side.
1.
2.
3.
Fig. 2-4
Fig. 2-3-A
Cassette Side L
Cassette Side R
Locker R
Cassette Holder
Locker Spring
(A)
Link Unit
Main Chassis
Link Unit
(B)
Main Chassis
NOTE
1. After the installation of the Top Bracket, bend the
support so that the Top Bracket is fixed.
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.
Fig. 2-3-B
Check if this position
is locked.
Cassette Side R
Locker R
2-5: LINK LEVER/FLAP LEVER (Refer to Fig. 2-5)
Extend the support .
Remove the Link Lever.
Remove the Flap Lever.
1.
2.
3.
Fig. 2-5
Link Lever
Flap Lever
1
11
1
2
2
2
1
1
1
1
1
2
2
1
1
1
1

- 5 -
DISASSEMBLY INSTRUCTION
2-6: LOADING MOTOR/WORM (Refer to Fig. 2-6-A)
Remove the screw .
Remove the Loading Motor.
Remove the Worm.
1.
2.
3.
Fig. 2-6-A
• Screw Torque: 3± 0.5kgf•cm
Loading Motor
Main Chassis
Worm
2-7: TENSION ASS'Y (Refer to Fig. 2-7-B)
Turn the Pinch Roller Cam clockwise so that the
Tension Holder hook is set to the position of Fig. 2-7-A
to move the Tension Arm Ass'y.
Remove the Tension Spring.
Unlock the 2 supports and remove the Tension
Band.
Unlock the support and remove the Tension Arm
Ass'y.
Unlock the support and remove the Tension
Connect.
Float the hook and turn it clockwise then remove the
Tension Holder.
1.
2.
3.
4.
5.
6.
Fig. 2-7-A
Tension Arm Ass'y
Fig. 2-7-B
Fig. 2-7-D
Tension Band
Tension Spring
Tension Band
Tension Arm Ass'y
Tension Holder
Tension Connect
NOTE
1.
2.
3.
In case of the Tension Band installation, note the
direction of the installation. (Refer to Fig. 2-7-C)
In case of the Tension Band installation, install correctly
as Fig. 2-7-D.
In case of the Tension Connect installation, install as
the circled section of Fig. 2-7-E.
Tension Band
Tension Connect
Tension Connect
[OK]
[NG]
Fig. 2-7-E
Tension Connect
Main Chassis
Fig. 2-7-C
Tension Band
Tension Connect
NOTE
1.
2.
3.
In case of the Worm installation, check if the value of
the Fig. 2-6-B is correct.
In case of the Loading Motor installation, hook the wire
on the Cassette Opener as shown Fig. 2-6-C.
When installing the wires between Capstan DD Unit
and Loading Motor, connect them correctly as shown
Fig. 2-6-D.
Loading Motor Capstan DD Unit
-
+
L2
L1
Pink
Fig. 2-6-D
White
Fig. 2-6-B
19.2 0.1mm
Safety surface for pressing
of the insert.
Fig. 2-6-C
Loading Motor
Cassette Opener
1
1
1
1
1
2
2
3
3
4
4

- 6 -
DISASSEMBLY INSTRUCTION
Fig. 2-9-B
Big Hole
(S Reel)
Small Hole
(T Reel)
Fig. 2-9-C
Idler Arm Ass'y
[OK]
[NG]
Clutch Gear
Idler Arm Ass'y
Clutch Gear
Fig. 2-8-B
T Brake Band
NOTE
1. In case of the T Brake Band installation, install correctly
as Fig. 2-8-B.
T Brake Arm
[OK]
[NG]
T Brake Band
T Brake Arm
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.
Remove the 2 Polyslider Washers .
Remove the Idler Arm Ass'y and Idler Gear.
1.
2.
3.
NOTE
Take care not to damage the gears of the S Reel and T
Reel.
The Polyslider Washer may be remained on the back of
the reel.
Take care not to damage the shaft.
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
(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.
(Refer to MECHANICAL ADJUSTMENT)
1.
2.
3.
4.
5.
6.
Fig. 2-9-A
S Reel
(A) T Reel
(A)
Idler Arm Ass'y
Idler Gear
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.
2-8: T BRAKE ARM/T BRAKE BAND (Refer to Fig. 2-8-A)
Remove the T Brake Spring.
Turn the T Brake Arm clockwise and bend the hook
section to remove it.
Unlock the 2 supports and remove the T Brake
Band.
1.
2.
3.
T Brake Band
Hook section
T Brake Spring
T Brake Arm
Fig. 2-8-A
(B)
1
1
1
1
1

- 7 -
DISASSEMBLY INSTRUCTION
A/C Head
A/C Head Spring
(3)
(1)
(2)
A/C Head Base
Spring Position Fig. 2-11-B
2-12: FE HEAD (RECORDER ONLY) (Refer to Fig. 2-12)
Remove the screw .
Remove the FE Head.
1.
2.
FE Head
• Screw Torque: 5 ± 0.5kgf•cm
• The FE Head is not installed on the Video Cassette Player.
Fig. 2-11-A
• Screw Torque: 5 ± 0.5kgf•cm (Screw )
Fig. 2-12
2-11: A/C HEAD (Refer to Fig. 2-11-A)
Remove the screw .
Remove the A/C Head Base.
Remove the 3 screws .
Remove the A/C Head and A/C Head Spring.
1.
2.
3.
4.
NOTE
Do not touch the A/C Head. (Use gloves.)
When you install the A/C Head Spring, install as shown in
Fig. 2-11-B.
When you install the A/C Head, tighten the screw (1) first,
then tighten the screw (2), finally tighten the screw (3).
1.
2.
3.
2-10: CASSETTE OPENER/PINCH ROLLER BLOCK/
P5 ARM ASS'Y (Refer to Fig. 2-10-A)
Unlock the support and remove the Cassette
Opener.
Remove the Pinch Roller Block and P5 Arm Ass'y.
1.
2.
Fig. 2-10-A
Cassette Opener
P5 Arm Ass'y
Pinch Roller Block
Main Chassis
NOTE
Do not touch the Pinch Roller. (Use gloves.)
In case of the Pinch Roller Block and the Pinch Roller
Cam installation, install correctly as Fig. 2-10-B.
1.
2.
Fig. 2-10-B
Can be seen the hole of the
Main Cam.
Can be seen the hole of
the Pinch Roller Cam.
P5 Arm Ass'y
Pinch Roller Block
2-13: AHC ASS'Y/CYLINDER UNIT ASS'Y
(Refer to Fig. 2-13)
Unlock the support and remove the AHC Ass'y.
Disconnect the following connector:
(CD2001)
Remove the 3 screws .
Remove the Cylinder Unit Ass'y.
1.
2.
3.
4.
When you install the Cylinder Unit Ass'y, tighten the
screws from (1) to (3) in order while pulling the Ass'y
toward the left front direction.
NOTE
Fig. 2-13
1.
Cylinder Unit Ass'y
• Screw Torque: 3 ± 0.5kgf•cm
(1)
(3)
(2)
AHC Ass'y
1
1
1
2
1
1
2
2
2
1
1
1
2
1
2
2
2

- 8 -
DISASSEMBLY INSTRUCTION
Fig. 2-15-A
NOTE
In case of the Pinch Roller Cam and Main Cam
installation, install them as the circled section of Fig. 2-
15-B so that the each markers are met. (Refer to Fig.
2-15-B)
Fig. 2-15-B
2-15:
Remove the E-Ring , then remove the Main Cam.
Remove the E-Ring , then remove the Pinch Roller
Cam and Joint Gear.
1.
2.
MAIN CAM/PINCH ROLLER CAM/JOINT GEAR
(Refer to Fig. 2-15-A)
Main Cam
Pinch Roller Cam
Joint Gear
1.
Pinch Roller Cam
Main Cam
Marker
2-16: LOADING GEAR S/T UNIT (Refer to Fig. 2-16-A)
1.
2.
Remove the E-Ring and remove the Main Loading
Gear.
Remove the Main Rod, Tension Lever, Loading Arm S
Unit and Loading Arm T Unit.
Main Rod Main Loading Gear
Tension Lever
Loading Arm T Unit
Loading Arm S Unit
Fig. 2-16-A
2-14: CAPSTAN DD UNIT (Refer to Fig. 2-14-A)
Remove the Capstan Belt.
Remove the 3 screws .
Remove the Capstan DD Unit.
1.
2.
3.
• Screw Torque: 4 ± 0.5kgf•cm
Capstan DD Unit
Capstan Belt
In case of the Capstan DD Unit installation, apply the
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)
NOTE
1.
Fig. 2-14-A
Fig. 2-14-B
Fig. 2-14-C
Capstan DD Unit
Main Chassis
Applied position of
silicon bond
Be careful not to apply the silicon
bond to the Pinch Roller.
Silicon Bond
1
111
1
2
1
2
1
1

- 9 -
DISASSEMBLY INSTRUCTION
2-18:
Remove the P4 Cap.
Unlock the support and remove the Cassette Guide
Post.
Remove the Inclined Base S/T Unit.
Remove the screw .
Remove the LED Reflector.
1.
2.
3.
4.
5.
Fig. 2-18-A
CASSETTE GUIDE POST/INCLINED BASE S/T
UNIT/P4 CAP/LED REFLECTOR
(Refer to Fig. 2-18-A)
P4 Cap
Cassette Guide Post
Inclined Base T
Unit
Inclined Base S
Unit
NOTE
Do not touch the roller of Guide Roller.
In case of the P4 Cap installation, install it with parallel
for "A" and "B" of Fig. 2-18-B.
In case of the Cassette Guide Post installation, install
correctly as the circled section of Fig. 2-18-C.
1.
2.
3.
"A"
[OK]
[NG]
"B"
P4 Cap Cassette Opener
Fig. 2-18-B
Fig. 2-18-C
Cassette Guide Post
Cassette Guide Post
2-17:
Remove the Polyslider Washer .
Remove the Clutch Ass'y and Ring Spring.
Remove the Clutch Lever.
Remove the Coupling Gear, Coupling Spring and
Clutch Gear.
1.
2.
3.
4.
Fig. 2-17-A
NOTE
1. When you install the Loading Arm S Unit, Loading Arm
T Unit and Main Loading Gear, align each marker.
(Refer to Fig. 2-16-B)
Fig. 2-16-B
Loading Arm T Unit
Main Loading Gear
Marker
Marker
Loading Arm S Unit
Clutch Ass'y
Coupling Gear Clutch Lever
Ring Spring
Coupling Spring
Clutch Gear
CLUTCH ASS'Y/RING SPRING/CLUTCH LEVER/
CLUTCH GEAR (Refer to Fig. 2-17-A)
NOTE
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)
1.
Clutch Ass'y
Fig. 2-17-B
Coupling Gear
LED Reflector
• Screw Torque: 5 ± 0.5kgf•cm
1
1
1
2
1
2

- 10 -
DISASSEMBLY INSTRUCTION
Rack Loading Spring
Rack Loading
Main Gear
Main Frame Ass’y
Rack L Spring
3. REMOVAL OF DVD DECK PARTS
3-1: TRAY (Refer to Fig. 3-1-A)
Set the Tray opened. (Refer to the DISC REMOVAL
METHOD AT NO POWER SUPPLY)
Unlock the support and remove the Tray.
1.
2.
Fig. 3-1-A
Tray
Main Frame Ass'y
NOTE
1. In case of the Tray installation, install them as the
circled section of Fig. 3-1-B so that the each markers
are met.
3-2: MAIN CHASSIS ASS'Y (Refer to Fig. 3-2-A)
Remove the Main Chassis Ass'y from the Insulator (R).
Unlock the support .
Remove the Main Chassis Ass'y.
1.
2.
3.
Fig. 3-2-A
Main Frame Ass'y
Main Chassis Ass'y
Tray
Main Frame Ass'y
Fig. 3-1-B
Insulator (R)
(Green)
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.
NOTE
1. In case of the Main Chassis Ass'y, install it from (1) to
(6) in order. (Refer to Fig. 3-2-B)
Fig. 3-2-B
3-4:
Remove the screw .
Remove the Lever Switch.
Remove the 2 Insulator (R).
Press the Clamper and rotate the Clamper Plate
clockwise, then unlock the 3 supports .
Remove the Clamper Plate, Clamper Magnet and
Clamper.
1.
2.
3.
4.
5.
Fig. 3-4-A
CLAMPER ASS'Y/INSULATOR(R)/LEVER SWITCH
(Refer to Fig. 3-4-A)
Main Frame
Clamper Plate
Clamper Magnet
Clamper
Lever Switch
Insulator (R)
(Green)
Insulator (R)
(Green)
Move it to the direction
of the arrow.
Main Chassis Ass'y
Check Lock
Rack Loading
Main Frame Ass'y
3-3: RACK LOADING/MAIN GEAR/ RACK LOADING
SPRING (Refer to Fig. 3-3)
1.
2.
3.
Remove the Rack L Spring.
Press down the catcher and slide the Rack Loading.
Remove the Rack Loading, Rack Loading Spring and
Main Gear.
Fig. 3-3
1
1
1
1
1
234
5
6
6
45
1
1
1
2
1
22
2

- 11 -
DISASSEMBLY INSTRUCTION
Lever Switch
Fig. 3-4-C
Rack Loading AB
The Lever should be position
between A and B.
3-5:
Remove the Traverse Holder.
Remove the 2 Insulator (F).
1.
2.
Fig. 3-5-A
Traverse Holder
TRAVERSE HOLDER/INSULATOR (F)
(Refer to Fig. 3-5-A)
Insulator (F)
(Black)
Main Chassis Ass'y
NOTE
1. After the installing of the Traverse Holder, check if the
wire is like Fig. 3-5-B.
Insulator (F)
(Black)
Fig. 3-4-D
NOTE
1.
2.
3.
4.
When installing the Clamper Magnet, install it with the
green face up.
When installing the wire of the Lever Switch, install it
correctly as Fig. 3-4-B.
When installing the Lever Switch, install it correctly as
Fig. 3-4-C.
In case of the Lever Switch installation, hook the wire
on the Main Frame as shown Fig. 3-4-D.
Fig. 3-4-B
Lever Switch
Red
White
Blue
From DVD PCB
Fig. 3-5-B
Traverse Holder
Main Chassis Ass'y
3-6: SWITCH PCB ASS'Y (Refer to Fig. 3-6-A)
Remove the screw .
Remove the Switch PCB Ass'y.
1.
2.
Fig. 3-6-A
Switch PCB Ass'y
Main Chassis Ass'y
• Screw Torque: 4±
0.5kgf•cm
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. 3-
6-B, then instal it.
3-7: RACK FEED ASS'Y (Refer to Fig. 3-7-A)
Remove the screw .
Remove the Rack Feed 1/2 Spring, Rack Feed 1/2 and
Rack Feed Lever.
1.
2.
Rack Feed 1
Rack Feed Lever
Rack Feed 2
Rack Feed 1 Spring
Rack Feed 2 Spring
Fig. 3-7-A
Main Chassis Ass'y
• Screw Torque: 3.5± 0.5kgf•cm
Fig. 3-6-B
Switch PCB Ass'y
Black
White
From Relay PCB
Main Chassis Ass'y
1
1
1
1

- 12 -
DISASSEMBLY INSTRUCTION
3-10: IDLER ARM (Refer to Fig. 3-10-A)
Remove the Idler Arm Spring.
Remove the Chassis Spring.
Remove the Idler Arm.
1.
2.
3.
Fig. 3-10-A
Idler Arm
Idler Arm Spring
Chassis Spring
Main Chassis Ass'y
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.
Fig. 3-9-B
[OK] [NG]
Idler Gear Idler Gear
Idler Arm Idler Arm
Fig. 3-9-C
Middle Gear 2
Check Lock
Unlock the support .
Remove the Middle Gear 1/2/3, Idler Gear and Feed
Gear.
1.
2.
Middle Gear 1
Middle Gear 2
Middle Gear 3
Idler Gear Feed Gear
Fig. 3-9-A
Main Chassis Ass'y
3-8: RELAY PCB ASS'Y (Refer to Fig. 3-8-A)
Remove the screw .
Remove the Relay PCB Ass'y.
1.
2.
Fig. 3-8-A
Relay PCB Ass'y
Main Chassis Ass'y
NOTE
1. When installing the wire of the Relay PCB, install it
correctly as Fig. 3-8-B.
Fig. 3-7-B
Fig. 3-7-C
Should not be engaged.
Check the position of
the Rack Feed Lever.
Moving smoothly
Moving smoothly
Fig. 3-8-B
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.
1
1
1
1
3-9: GEAR (Refer to Fig. 3-9-A)

- 13 -
DISASSEMBLY INSTRUCTION
Idler Arm
Main Chassis Ass'y
Fig. 3-10-B
Fig. 3-10-C
Fig. 3-10-D
Chassis Spring
Main Chassis Ass'y
NOTE
1.
2.
3.
In case of the Idler Arm installation, install as the circled
section of Fig. 3-10-B.
In case of the Idler Arm Spring installation, install as the
circled section of Fig. 3-10-C.
In case of the Chassis Spring installation, install as the
circled section of Fig. 3-10-D.
Idler Arm Spring
Main Chassis Ass'y
Fig. 3-11-A
• Screw Torque: 1 ± 0.5kgf•cm
3-11: FEED MOTOR (Refer to Fig. 3-11-A)
Remove the 2 screws .
Remove the Feed Motor.
Remove the Motor Gear.
1.
2.
3.
Motor Gear
Feed Motor
Main Chassis Ass'y
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.
Fig. 3-11-B
6.1 0.1mm
Safety surface for pressing
of the insert.
Feed Motor
Motor Gear
Fig. 3-11-C
Main Chassis Ass'y
Feed Motor
Pass the cable
between 2 pins.
1
11

- 14 -
MECHANICAL ADJUSTMENTS
Reel Disk Height
Adjustment Jig
(JG024A)
Reel Disk
Master Plane (JG022) (B)
10(+0.2, -0)mm
Height Adjustment Washer
2.6x4.7xT0.13
2.6X4.7xT0.25
(A)
(C)
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.
2.
3.
4.
Turn on the power and set to the STOP mode.
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.
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.
Adjust the other reel in the same way.
Master Plane (JG022)
Reel Disk Height Adjustment Jig
(JG024A)
Fig. 1-1-A
Fig. 1-1-B
1-2: CONFIRMATION AND ADJUSTMENT OF TENSION
POST POSITION
1.
2.
3.
Set to the PLAY mode.
Adjust the adjusting section for the Tension Arm
position so that the Tension Arm top is within the
standard line of Main Chassis.
While turning the S Reel clockwise, confirm that the
edge of the Tension Arm is located in the position
described above.
Fig. 1-2-A
Standard line of Main Chassis
Tension Arm
0.5mm (Adjusting range)
Fig. 1-2-B
Adjusting section for the
Tension Arm position
Tension Band
The Tension Arm top will
move to the inside direction
of the Main Chassis.
The Tension Arm top will
move to the outside direction
of the Main Chassis.
Bend
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.
2.
3.
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.
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
25~40gf•cm during playback in SP mode.
Tentelometer
Video Tape
P1 Post Guide Roller Fig. 1-3

- 15 -
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
If the torque is out of the range, replace the following parts.
2. CONFIRMATION AND ADJUSTMENT
OF TAPE RUNNING MECHANISM
Tape 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 adjust-
ment are necessary.
2-1: GUIDE ROLLER
1.
2.
3.
4.
5.
6.
Playback the VHS Alignment Tape (JG001C or JG001E).
(Refer to SERVICING FIXTURE AND TOOLS)
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
to Fig. 2-1-A)
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
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).
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)
Fig. 2-1-A
CH-1
Envelope
(TP103)
CH-1
Track
CH-2
Track
CH-2
SW Pulse (TP102)
Fig. 2-1-B
Entrance
Max
Exit
Max
A B
A : B 3 : 2
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.
2.
3.
4.
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.
Move the Idler Ass’y from the S Reel.
Install the Torque Gauge (JG002F) and Adapter
(JG002B) on the S Reel. Turn the Torque Gauge
(JG002F) clockwise.
Then, confirm that it indicates 60~100gf•cm.
(T Reel Brake) (Refer to Fig. 1-4-B)
1.
2.
3.
4.
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.
Move the Idler Ass’y from the T Reel.
Install the Torque Gauge (JG002E) and Adapter
(JG002B) on the T reel. Turn the Torque Gauge
(JG002E) counterclockwise.
Then, confirm that it indicates 30~50gf•cm.
Fig. 1-4-A
The position at FF mode.
Stop at this position.
The position at
STOP mode.
Capstan DD Unit
Cassette Holder Ass’y
Cassette Opener
Pinch Roller Block
Fig. 1-4-B
Torque Gauge/Adapter
(JG002F/JG002B)
S Reel
T Reel
Torque Gauge/Adapter
(JG002E/JG002B)
Check item
1-4
Replacement Part
Idler Ass’y/Clutch Ass’y
S Reel side:
T Reel side:
S Reel/Tension Band/Tension
Connect/Tension Arm Ass’y
T Reel/T Brake Band//T Brake
Spring/T Brake Arm
1-5

- 16 -
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.
2.
3.
4.
Playback the VHS Alignment Tape (JG001C or JG001E).
(Refer to SERVICING FIXTURE AND TOOLS)
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)
b)
Turn the screw to set the audio level to maximum.
Confirm that the bottom of the Audio/ Control Head and
the bottom of the tape is shown in Fig. 2-2-C.
c)
When the reflected picture is distorted, turn the screw
1 clockwise until the distortion is disappeared.
When the reflected picture is not distorted, turn the
screw counterclockwise until little distortion is
appeared, then adjust the a).
When the height is not correct, turn the screw to
adjust the height. Then, adjust the 1~3 again.
Fig. 2-2-A
Audio/Control Head
Reflected picture of
Stamp Mark
P4 Cap
Stamp Mark
Fig. 2-2-B
Audio/Control Head
Fig. 2-2-C
Audio/Control Head
Tape
0.25±0.05mm
2-3: TAPE RUNNING ADJUSTMENT
(X VALUE ADJUSTMENT)
1.
2.
3.
4.
5.
6.
7.
Confirm and adjust the height of the Reel Disk.
(Refer to item 1-1)
Confirm and adjust the position of the Tension Post.
(Refer to item 1-2)
Adjust the Guide Roller. (Refer to item 2-1)
Confirm and adjust the Audio/Control Head.
(Refer to item 2-2)
Connect CH-1 of the oscilloscope to TP102, CH-2 to
TP103 and CH-3 to pin 19 of J8004.
Playback the VHS Alignment Tape (JG001U or JG001V).
(Refer to SERVICING FIXTURE AND TOOLS)
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.
Fig. 2-3
Envelope
(1)
CH-3
Audio
(2)
2-4: CONFIRM HI-FI AUDIO (Hi-Fi model only)
1.
2.
3.
4.
5.
Connect CH-1 of the oscilloscope to TP103 and CH-2 to
the pin 19 of J8004.
Playback the VHS Alignment Tape (JG001R).
(Refer to SERVICING FIXTURE AND TOOLS)
Press the Tracking Up button and count number of steps
which the audio output is changed from Hi-Fi (10KHz) to
MONO (6KHz).
Press the Tracking Down button and count number of
steps which the audio output is changed from Hi-Fi
(10KHz) to MONO (6KHz).
If the difference are more than 3 steps, set the X Value
adjustment driver (JG153) to of Fig. 2-2-B. Change the
X Value and adjust it so that the value becomes within 2
steps.
1
2
3
1
4
3
2
4
4

- 17 -
MECHANICAL ADJUSTMENTS
3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDE
1
2
3
4
5
6
7
8910
1. Tension Connect
2. Tension Arm
3. Guide Roller
4. Audio/Control Head
5. X value adjustment driver hole
6.
7.
8.
9.
10.
P4 Post
T Brake Spring
T Reel
S Reel
Adjusting section for the Tension Arm position

- 18 -
SERVICING FIXTURES AND TOOLS
JG100A Torque Tape
(VHT-063)
JG024AJG022 Master PlaneJG153 X Value Adjustment
Screwdriver
JG005 Post Adjustment
Screwdriver
Part No. SV-TG0-030-000
(small)
JG002B
JG002E
JG002F
Adapter
Dial Torque Gauge
(10~90gf•cm)
(60~600gf•cm)
Reel Disk Height
Adjustment Jig
(For 2 head 2 speed model)
VHS Alignment Tape
JG001C
JG001D
JG001V
(VP S-LI6 )
(VP S-CO1 )
(VP S-X6 )
3
3
2
2
23
(For 2 head 1 speed model,
4 head model)
VHS Alignment Tape
JG001E
JG001F
JG001R
JG001U
(VP S-LI6 )
(VP S-CO1 )
(VP S-LI6 H)
(VP S-X6 )
3
3
3
3
1
1
1
1
JG154 Cable
Remarks
Part No.
APJG001E00
Ref. No.
JG001R
JG001U
JG001C
JG001D
JG001V
JG001E
JG001F APJG001F00
APJG001R00
VHS Alignment Tape
APJG001U00
APJG001C00
APJG001D00
APJG001V00
Parts Name
VHS Alignment Tape
VHS Alignment Tape
VHS Alignment Tape
VHS Alignment Tape
VHS Alignment Tape
VHS Alignment Tape
JG002B
JG002E
JG002F
JG005
JG153
APJG022000
JG100A
JG154
JG024A
JG022
APJG002B00
APJG002E00
APJG002F00
APJG005000
APJG153000
APJG024A00
APJG100A00
APJG154000
Adapter
Dial Torque Gauge (10~90gf•cm)
Dial Torque Gauge (60~600gf•cm)
Post Adjustment Screwdriver
X Value Adjustment Screwdriver
Master Plane
Reel Disk Height Adjustment Jig
Torque Tape (VHT-063)
Cable
VSR Torque, Brake Torque (S Reel/T Reel Ass'y)
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)
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
TentelometerJG176 Up-Date Disc
PREPARATION FOR SERVICING
1.
2.
3.
How to use the Servicing Fixture
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.
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.
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.
JG176 APJG176034 Up-Date Disc Up-Date of the Firmware

- 19 -
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.
: Clean
: Check it and if necessary, replace it.
Time
Parts Name
500
hours
1,000
hours Notes
1,500
hours
2,000
hours
2,500
hours
Audio Control Head
Full Erase Head
(Recorder only)
Capstan Belt
Pinch Roller
Capstan DD Unit
Loading Motor
Tension Band
Capstan Shaft
Tape Running
Guide Post
Cylinder Unit
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
T Brake Band
Clutch Ass’y
Idler Arm Ass’y
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.
2.
3.
4.
Connect the set to TV Monitor.
Turn on the POWER.
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.
After the confirmation of using hours, turn off the power.
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)
INIT 0C6 06
PLAY/REC 0010
Fig. 1