Orion COMBI 2612 User manual

SERVICE
MANUAL
ORION
COMBI
2612
/
2612SI
COLOR TELEVISION/VIDEO CASSETTE RECORDER
ORIGINAL
CHASSIS CODE B
vis
Best. Nr. SM2612
Design and specifications are subject to change without notice.

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. AVOID AN ELECTRIC SHOCK
There is a high voltage part inside. Avoid an
electric shock while the electric current is
flowing.
. 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.
. 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.
TAKE CARE TO DEAL WITH THE
CATHODE-RAY TUBE
In the condition that an explosion-proof cathode-
ray tube is set in this equipment, safety is
secured against implosion. However, when
removing it or serving from backward, it is
dangerous to give a shock. Take enough care to
deal with it.
SERVICING NOTICES ON CHECKING
1. KEEP THE NOTICES
6. AVOID AN X-RAY
Safety is secured against an X-ray by consider-
ing about the cathode-ray tube and the high
voltage peripheral circuit, etc.
Therefore, when repairing the high voltage pe-
ripheral circuit, use the designated parts and
make sure not modify the circuit.
Repairing except indicates causes rising of high
voltage, and it emits an X-ray from the cathode-
ray tube.
. PERFORM A SAFETY CHECK AFTER
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.
(INSULATION CHECK PROCEDURE)
1. Unplug the plug from the AC outlet.
2. Remove the antenna terminal on TV and turn
on the TV.
3. Insulation resistance between the cord plug
terminals and the eternal exposure meta!
[Note 2] should be more than 1M ohm by
using the 500V insulation resistance meter
[Note 1].
. lf the insulation resistance is less than 1M
ohm, the inspection repair should be
required.
[Note 1]
If you have not the S0OV insulation
resistance meter, use a Tester.
{Note 2]
External exposure metal: Antenna terminal
Earphone jack
HOW TO ORDER PARTS
Please include the following informations when you order parts. (Particularly the CHASSIS CODE.)
1. MODEL NUMBER and CHASSIS CODE
You can find it in the back of your unit.
2. PART NO. and DESCRIPTION
You can find it in your SERVICE MANUAL.
IN CASE OF VIDEO TAPE JAM |
1. Remove the Deck Chassis from the main unit.
(Refer to item 1 of the DISASSEMBLY INSTRUCTIONS.)
2. Rotate the Middle Gear in the direction of the arrow by hand. Then take
out the Video Tape. Be careful not to scratch on the tape.

CONTENTS
SERVICING NOTICES ON CHECKING... cscccsessscesseseseseensensenseecseesraseaseseassnssssensseesssensenees A1-1
HOW TO ORDER PARTS aa
IN
CASE
OF
VIDEO
TAPE
JAM
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At-1
CONTENTS.
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A2-1
GENERAL
SPECIFICATIONS
0...
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A3-1~A3-4
DISASSEMBLY INSTRUCTIONS
1. REMOVAL OF MECHANICAL PARTS AND P. C. BOARDS...
2. REMOVAL OF DECK PARTS uu... eessccsssessssescssseessenecaessesnsacsasnecssessenessettersersaeresenaneatscasansans
3. REMOVAL OF ANODE CAP 2... ccscescesssssseeeersecensesseeseecsenssaesansnarsanaeenerecsevaesaesesnenssnsenenacs
4, REMOVAL OF DEFLECTION YOKE .........ccssscescesseesessesseesessnnseenassenaseaneaeneescesscesnnsssassaoaees
5. REMOVAL AND INSTALLATION OF FLAT PACKAGE IC
KEY TO ABBREVIATIONS
SERVICE MODE LIST ou... ccc cseccsecsseeseceseceessscnscsesssssnsessernsessenersessnenssserasaserensssaecesesesessenerease
PREVENTIVE CHECKS AND SERVICE INTERVALS
WHEN REPLACING EEPROM (MEMORY) IC
SERVICING FIXTURES AND TOOLS
MECHANICAL ADJUSTMENTS occ eseccccsscesesssseesennensenesaearererseasseesensenassensensesneensesesenaenaes
_ ELECTRICAL ADJUSTMENTS.........csssscssessssssessnessneesnssensessarennteraretarecaneennensnesnnennneneneese
BLOCK DIAGRAMS
POWER/OPERATION....
PRINTED CIRCUIT BOARDS
MAIN/CRT
SYSCON/21PIN/DECK
SYSCON/21PIN ....csscssscsecssecsscessarsesneesseseseesusecsesensesesaprensvesessessscanesesananenssvesasocorasesansavaseasroarqneses F-5, F-6
SCHEMATIC DIAGRAMS
Y/C/AUDIO/HEAD AMP. .......esescessecsessesssceceesssscesseneseeaeenenssecaessasassaesensenssaeesatenseseesensasnensnaney G-1, G-2
MICON uo. secsseeseseeneaeeees
POWER/OPERATION
CHROMA svccicscscssccsvsscontenavs sasonconcesssauseensosentevsperisasnosidcavansests ets pedeeadedessedsetesvrstenedcoss
SOUND AMP .....0...:ccssscsscosessssssrssssscersavscssesceoreasenteseesenscssensaseacnsssaserssssnesesneassoessessassoesenseereseess
TTX: hassncsteccdvccsvsestesessedsodSeasbsivacesunnaicoasecadeduodssastesnsisorsnedevsedersestueconaeersesceuyecbnvecemestecsorates G-11, G-12
21PIN/IN/OUT.. G-13, G-14
TV POWER ....cccssssssccesssccecsassoenersesoessessnssscvscsssensosossussonsoeusussucsscensensansencacenssaesonenensesssonesenonenecees G-15, G-16
DEFLECTION . G-17, G-18
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DECK ...ccsssssocssssssncessssrecsstsecsscscssusessnsnsacsssoccssonvupscosssensscusrsacsansesesossanancassnenesaceasenesesseseesaaseneersses G-21, G-22
INTERCONNECTION DIAGRAM ........ccscsecsesceseesrssesseresescssseccastensecrscnonasensenseeneneestecentenseneniees G-23, G-24
WAVEFORMS
MECHANICAL EXPLODED VIEWS.
CHASSIS EXPLODED VIEWS occ cscesccceessseneseeenessscensnseneenessaensspaceseeseseaenessnaseneteesnaeaenenae
MECHANICAL REPLACEMENT PARTS LIST
CHASSIS REPLACEMENT PARTS LIST ...........c:ccsesssesseenecseeetsecnessenersecsesennseassesereeapenseensasenes J2-1
ELECTRICAL REPLACEMENT PARTS LIST
A2-1

GENERAL SPECIFICATIONS
CRT Size / Visual Size 10 inch / 222.8mmV
CRT Type
Normal
Deflection
90 degree
Magnetic Field BV/BH
+0.45G/0.18G
Color System
PAL
Speaker
1Speaker
Position
Side
Size
3 inch
Impedance
8 ohm
Sound Output
System
MAX
10%(Typical)
Player / Recorder
Video System
PAL
Hi-Fi STEREO
No
NTSC PB
Yes
Deck
DECK
Loading System
Motor
OVD-6S
Front
3
Video Head 2 Head
FM Audio Head No
Audio /Control Mono / Yes
Erase(Full Track Erase) Yes
Tape Rec
Speed
PAL
NTSC
SP
Play
PAL
NTSC
SP
SP
Fast Forward / Rewind Time (Approx.) at+250C
Forward/Reverse
Picture Search
Frame Advance
Slow Speed
Broadcasting System
Tuner and
Receive CH
Intermediate
Frequency
Cassette
NTSC or PAL-M
PAL or SECAM
FF:1'48"/REW:1'48"
at E-180
SP=3x,5x
SP=5x,7x
1/10
1/5~1/30
CCIR System B/G
System
1Tuner
Destination
CCIR Hyper
Tuning System
Input Impedance
VHF/UHF 75 ohm
CH Coverage
Picture(FP)
Sound(FS)
FP-FS
Preset CH
E5~E12,$11~S41,E21~E69
Stereo/Dual TV Sound
Video Signal
input Level 1
V p-p/75 ohm
Output Level
1 V p-p/75 ohm
S/N Ratio (Weighted)
53 dB
Horizontal Resolution at SP Mode
240 Lines
Audio Signal
Input Level
-3.8dBm/50Kohm
Output Level
-3.8dBm/1Kohm
S/N Ratio at SP
42 dB
Harmonic Distortion at SP_(1KHz)
Typical
1.5 %
Frequency Response
at SP
100Hz ~10kKHz
at LP
at SLP
Hi-Fi Audio Signal
Power Source
Dynamic Range : More than
Wow And Flutter : Less than
Channel Separation : More than
Harmonic Distortion : Less than
230V SOHz
12V
Power Consumption
Stand by (at AC)
Per Year
50 W at 230V 50 Hz
50 W at12V
6W at 230 V 50 Hz
Protector
Menu
Power Fuse
Dew Sensor
Safety
Radiation
X-Radiation
Operation
Storage
Type
A3-1
+5°C ~ +40°C
20°C ~_ +60"
: Less then 80% RH
j Yes
Character
E2~E4, X~Z+2, S$1~S10,

GENERAL SPECIFICATIONS
ATS No
Timer Rec Set Yes
Channel Setup 4 Yes
Auto Tuning Yes
Ch Mapping No
Ch Tuning Yes
Ch Allocation Yes
TV Setup Yes
On/Off Timer Set Yes
Picture Yes
Audio No
VCR Setup No
Auto Repeat On/Off Yes
System Select No
Scene Repeat No
System Setup Yes
Clock Set Yes (Calendar 24h)
Language Yes
G-CODE(or SHOWVIEW or PLUSCODE)No. Entry No
Stereo/Audio Output No
Bilingal No
NICAM No
Clock/Date Yes
CH/AV | Yes
Tape Counter(Linear Counter) 4 Yes
Tape Speed \ No
Sleep Time Yes
Control Volume Yes
Level Bright / Contrast / Sharpness/ Color Yes
Tint No
Bass/Treble/Balance No
Manual Tracking Yes
Play/Stop/FF/Rew/Rec/OTR/T-Rec/Pause/EjectTape In (Symbol Mark; Yes
Auto Tracking/Manual Tracking : Yes
S-Repeat/SR-R/SR-PLAY i No
Index Yes
Mute Yes
Hi-Fi No
Repeat Yes
Zero Return No
Dew Yes
G-11
Clock,
Timer
Calendar
1990/1/1
~
2081/12/31
and Timer Timer Events 8 prog/ 1. month
Back-up One Touch Recording Max Time SP 5 Hours
OTPB Valid Time -
Sleep Timer Max Time 120 min.
Step i 10 min.
On/Off Timer Program{On Tim / Off Tim) | 1 prog.
Auto Shut Off No Signal 15 min.
No Operation - i
Timer Back-up (at Power Off Mode) 30
G-12 Remote Unit RC-CH
Control Glow in Dark Remocon No
Power Source Voltage(D.C) 3V
UM size x pcs UM-4 x 2 pcs
Total Keys 36 Keys
Keys Power Yes
1 Yes
2 Yes
3 Yes
4 | Yes
5 Yes
6 Yes
7 Yes
8 H Yes
9 Yes
O/AV Yes
CH/Tr Up No
CH/Tr Up/Page Up Yes
CH/Tr Down No
CH/Tr Down /Page Down Yes
Volume Up Yes
Votume Down Yes
Play/Up No
Play/Up/Slow Yes
F.Fwd/Right Yes
A3-2

G-14
Features
Accessories
GENERAL SPECIFICATIONS
Rew/Left Yes
Pause/Still Yes
Pause No
Stop/Down Yes
Rec/OTR Yes
Eject Yes
Counter Reset Yes
Speed No
Timer Rec Yes
TV Monitor i Yes
TV Monitor /Rec Monitor a No
Program Yes
Program V+ i No
Auto Tracking ‘ No
Auto Tracking /Reveal i Yes
Menu \ Yes
Enter i No
Enter/Hold | Yes
Cancel/Ch Skip No
Cancel/Ch Skip/F-T-B Yes
Index No
Index /Sub Page Yes
Calt Yes
TexvMix/TV Yes
Sleep Timer Yes
Mute Yes
Zero Return Yes
CM Skip No
OTPB i No
END Call Ele No
Red No
Cyan i No
Green No
Yellow No
‘Audio Select No
Auto Head Cleaning
Auto Tracking
HQ (VHS Standard High Quality)
Auto Power On, Auto Play, Auto Rewind, Auto Eject
Auto Shut Off
Auto Repeat
VIDEO PLUS+(SHOWVIEW,G-CODE)
CH Auto Set-Up/Auto Clock
Forward / Reverse Picture Search
One Touch Playback
Auto Tuning
Anti-Theft
End Call
Index Search
SQPB
CATV
CM Skip(30sec x 6 Times)
Comb Filter
T'Text
Text type!
Yes
UniText
Scene Repeat
No
Hotel Lock
No
TV Monitor
Zero Return
Choke Coil
Power On Memory
Owner's Manual Language | German
w/Guarantee Card Yes
Remote Control Unit Yes
Rod Antenna Yes
Poles 2pole
Terminal DIN type
w/300 ohm to 75 ohm Antenna Adapter Yes
Loop Antenna No
Terminai -
UN Mixer No
DC Car Cord (Center+) Yes
Guarantee Card No
Warning Sheet No
Circuit Diagram No
Antenna Change Plug ' No
Service Facility List i No
A3-3

Interface
Set Size
eal ass
GENERAL SPECIFICATIONS
important Safeguard No
Dew/AHC Caution Sheet No
AC Plug Adapter No
Quick Set-up Sheet Yes
Battery Yes
UM size x pcs UM-4 x 2 pcs
OEM Brand No
AC Cord No
AV Cord (2Pin-1Pin) No
21pin-RCA Cable No
Registration Card No
PTB Sheet | No
Anti-Theft Sheet No
Euro Warranty Information Sheet
Switch Power
No
Play
Pause/Stili
System Select
One Touch Playback
Channel Up
Channel Down
F.FWD/Cue
Eject/Stop
Main Power SW
Volume Up
Volume Down
Rew/Rev
Main Power SW
Rec/OTR \
Indicator Standby i
Rec/OTR Red
T-Rec |
On Timer
cs
Rec/OTR
One Touch Playback
Play
Key Light up
Red
Red
pre EE 1s eee aes
No
No
No
No
No
Terminals Front Video Input
Audio Input
Other Terminal
Rear Video Input
Audio Input
Video Output
RCA x1
RCA x1
Head Phone(Stereo & Mono, 3.5mm)
No
No
No
Audio Output
Euro Scart
N
1-SCART
Diversity
Ext Speaker
DC Jack 12V(Center +)
Yes
VHF/UHF Antenna Input ;
DIN type
AC Inlet i
Approx. WxDxH (mm):
Net (Approx.)
Gross (Approx.)
Master Carton
No
278 x 312.5 x 311.5
8.8 kg ( - Ibs)
10.5 kg - Ibs
Content
Material
Dimensions Wx Dx H(mm)
Description of Origin
Yes
Material
Double/Full Color
Dimensions WxDxH(mm)
338 x 381 x 386
Design
As per Buyer's
Description of Origin
No
Drop Test
1 Corner / 3 Edges / 6 Surfaces
Height (cm)
Natural Dropping Ati
62
Container Stuffing(40' container)
1256 Sets
G-19 Cabinet Material Cabinet Front j PS 94HB
Cabinet Rear PS 94HB
Jack Panel PS 94HB
A3-4

DISASSEMBLY INSTRUCTIONS
1. REMOVAL OF MECHANICAL PARTS
AND P.C. BOARDS
1-1: BACK CABINET (Refer to Fig. 1-1)
1. Remove the 4 screws ©.
2. Remove the 2 screws @.
3. Remove the 2 screws @ which are used for holding the
Back Cabinet.
4, Remove the AC cord from the AC cord hook @.
5. Remove the Back Cabinet in the direction of arrow.
Front Cabinet
Back Cabinet
Fig. 1-1
1-2: CRT PCB (Refer to Fig. 1-2)
CAUTION: BEFORE REMOVING THE ANODE CAP,
DISCHARGE ELECTRICITY BECAUSE IT
CONTAINS HIGH VOLTAGE.
BEFORE ATTEMPTING TO REMOVE OR
REPAIR ANY PCB, UNPLUG THE POWER
CORD FROM THE AC SOURCE.
1. Remove the Anode Cap.
(Refer to REMOVAL OF ANODE CAP)
2. Disconnect the following connectors:
(CP801 and CP850).
3. Remove the CRT PCB in the direction of arrow.
Front Cabinet
1-3: TV/VCR BLOCK (Refer to Fig. 1-3)
1. Remove the 2 screws @.
2. Disconnect the following connectors:
(CP351, CP401, CP403 and CP501).
3. Unlock the support @.
4. Remove the TV/VCR Block in the direction of arrow.
Front Cabinet
TVNVCR Block
1-4: MAIN PCB (Refer to Fig. 1-4)
1, Remove the screw ©.
2. Remove the Main PCB Holder.
3. Remove the 2 screws @).
4, Remove the screw @.
5. Disconnect the following connectors:
(CP502 and CP820).
6. Remove the Main PCB in the direction of arrow.
VCR Block

DISASSEMBLY INSTRUCTIONS
1-5: DECK SHIELD PLATE (Refer to Fig. 1-5)
1. Remove the 2 screws (.
2. Remove the 4 screws @.
3. Remove the screw ©).
4. Remove the Deck Shieid Plate in the direction of arrow (A).
5. Remove the screw @.
6. Remove the Shield Plate Bottom in the direction of arrow (B).
Deck Chassis
Deck Shield Plate
1-7: JACK PLATE, 21PIN PCB AND SYSCON PCB
(Refer to Fig. 1-7)
1. Remove the screw ©.
2. Remove the Syscon PCB in the direction of arrow (A).
3. Remove the 2 screws @,
4. Unlock the 2 supports @.
5. Remove the Jack Plate and 21Pin PCB in the direction
of arrow (B).
Jack Plate
Shield Plate Bottom
Syscon PCB
1-6: DECK CHASSIS (Refer to Fig. 1-6)
1. Remove the 3 screws ©.
2. Disconnect the following connectors:
(CP1001, CP1004, CP1005, CP1006, CP4001, CP4004
CP4005, CP4503 and CP4504).
3. Remove the Deck Chassis in the direction of arrow.
Deck Holder
B1-2

DISASSEMBLY INSTRUCTIONS
NOTE
When you install the Tape Guide L, install as shown in the
circle of Fig. 2-3-B. (Refer to Fig. 2-3-B)
2. REMOVAL OF DECK PARTS
2-1: TOP BRACKET (Refer to Fig. 2-1)
1, Remove the 2 screws ©.
2. Slide the 2 supports @ and remove the Top Bracket.
NOTE
When you install the Top Bracket, install the screw (1)
first, then install the screw (2).
¢ Screw Torque: 5 + 0.5kgfecm
2-2: FLAP LEVER/TAPE GUIDE R (Refer to Fig. 2-2)
1. Move the Cassette Holder Ass'y to the back side.
2. Remove the Polyslider Washer ©®.
3. Remove the Flap Lever.
4. Unlock the 3 supports @ and remove the Tape Guide R.
Main Chassis
2-3: TAPE GUIDE L (Refer to Fig. 2-3-A)
1. Move the Cassette Holder Ass'y to the back side.
2, Unlock the 2 supports @ and remove the Tape Guide L.
3. Remove the REC Lever. (Recorder only)
Tape Guide L
Main Chassis
* The REC Lever is not installed on the Video Cassette Player.
Fig. 2-3-A
B2-1
REC Lever
* The REC Lever is not installed on the Video casas Player, Fig. 9-3-B
2-4: CASSETTE HOLDER ASS'Y (Refer to Fig. 2-4)
1. Move the Cassette Holder Ass'y to the front side so that
the Link Ass'y doesn't slip out.
2. Push the Locker R to remove the Cassette Side R.
3. Remove the Cassette Side L.
Main Chassis
Main Chassis
Fig. 2-4
2-5: CASSETTE SIDE L/R (Refer to Fig. 2-5)
1. Unlock the 4 supports @ and then remove the Cassette
Side L/R.
2, Remove the Cassette Earth Spring.
NOTE
1. When you install the Cassette Side R, be sure to move
the Locker R after installing.
2. After the installation of the Cassette Holder, then install
the Cassette Earth Spring.
Cassette Holder
Cassette Side R
Cassette Side L
Cassette Earth Spring
Fig. 2-5

DISASSEMBLY INSTRUCTIONS
2-6: LINK ASS'Y (Refer to Fig. 2-6) 2-9: TENSION ASS'Y (Refer to Fig. 2-9-B)
1. Set the Link Ass'y to the Eject position. 1. Turn the Middle Gear clockwise so that the Tension
2. Remove the (A) side of the Link Ass'y first, then remove Holder hook, is set to the position of Fig. 2-9-A to more
the (B) side. the Tension Arm Ass'y.
2. Remove the Tension Spring.
3. Unlock the support @ and remove the Tension Arm
Ass'y.
4, Remove the Tension Adjust.
5. Unlock the 2 supports @ and remove the Tension Band
Ass'y.
6. Float the hook @ and turn it clockwise then remove the
Tension Holder.
7. Remove the SS Brake Spring.
8. Remove the SS Arm Brake.
Link Ass'y
Tension Arm Ass'y
Main Chassis
Fig. 2-6
2-7: LOADING MOTOR ASS'Y (Refer to Fig. 2-7)
1. Remove the Link Lever.
2. Remove the Dumper Spring.
3. Remove the 2 screws ©.
4. Unlock the support @ and remove the Loading Motor
Ass'y.
5. Unlock the 2 supports @ and remove the BOT PCB.
Tension Adjust
Tension Spring
SS Brake Spring
SS Arm Brake
Link Lever
NOTE
* Screw Torque: 5 + 0.5kgf*cm ig. When you install the Tension Adjust, install as shown in
Fig. 2-9-C. (Refer to Fig. 2-9-C)
2-8: SENSOR COVER L3 (Refer to Fig. 2-8) Adjust the direction of the Marker to inside.
1. Unlock the support © and remove the Sensor Cover L3. VA
B2-2

DISASSEMBLY INSTRUCTIONS
2-10: T BRAKE ASS'Y (Refer to Fig. 2-10)
1. Remove the T Brake Spring.
2. Turn the T Brake Ass'y clockwise and bend the hook
section to remove it.
T Brake Ass'y —.
Hook section
2 6 T Brake Spring
2-11: S REEL/T REEL (Refer to Fig. 2-11)
1. Remove the S Reel and T Reel.
2. Remove the 2 Polyslider Washers ©.
NOTE
1. Take care not to damage the gears of the S Reel and T
Reel.
2. The Polyslider Washer may be remained on the back of
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. 2-11) Do not adhere the stains
on it.
5. When you install the reel, clean the shaft and oil it (FL
OIL #6115). (If you do not oil, noise may be heard in FF/
REW mode.)
6. After installing the reel, adjust the height of the reel.
(Refer to MECHANICAL ADJUSTMENT)
2-12: PINCH ROLLER BLOCK/P5-3 ARM ASS'Y
(Refer to Fig. 2-12-A)
1. Remove the P5 Spring.
2. Remove the screw @).
3. Unlock the 2 supports @ and remove the Cassette
Opener.
4. Remove the Pinch Roller Block, Pinch Roller Arm
Spring, Pinch Roller Lever Ass'y and P5-3 Arm Ass'y.
Cassette Opener
Pinch Roller Block
Pinch Roller Arm Spring
Pinch Roller Lever Ass'y
Main Chassis
* Screw Torque: 5 + 0.5kgfecm
NOTE
1. Do not touch the Pinch Roller. (Use gloves.)
2. When you install the Pinch Roller Block, install as shown
in the circle of Fig. 2-12-B. (Refer to Fig. 2-12-B)
2-13: A/C HEAD (Refer to Fig. 2-13-A)
41. Remove the screw ©.
2. Remove the A/C Head Base.
3. Remove the 3 screws @.
4. Remove the A/C Head and A/C Head Spring.
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. 2-13-B. (Refer to Fig. 2-13-B)
3. When you install the A/C Head, tighten the screw (1)
first, then tighten the screw (2), finally tighten the screw
(3).
A/C Head
A/C Head Spring
AIC Head Base
¢ Screw Torque: 5 + 0.5kgf*cm (Screw @)
B2-3

DISASSEMBLY INSTRUCTIONS
Spring Position
2-14: FE HEAD (RECORDER ONLY) (Refer to Fig. 2-14)
1. Remove the screw @.
2. Remove the FE Head.
* The FE Head is not installed on the Video Cassette Player.
* Screw Torque: 4 + 0.5kgfecm
Fig. 2-14
2-15: AHC ASS'Y/CYLINDER UNIT ASS'Y
(Refer to Fig. 2-15)
1, Unlock the support © and remove the AHC Ass'y.
2. Remove the 3 screws @.
3. Remove the Cylinder Unit Ass'y.
NOTE
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.
AHC Ass'y
* Screw Torque: 3 + 0.5kgfecm
2-16: CAPSTAN DD UNIT (Refer to Fig. 2-16)
1. Remove the Capstan Belt.
2. Remove the 3 screws ©.
3. Remove the Capstan DD Unit.
B2-4
Capstan Belt
Capstan DD Unit
* Screw Torque: 5 + 0.5kgfecm
2-17: MIDDLE GEAR/MAIN CAM (Refer to Fig. 2-17-A)
1. Remove the Polyslider Washer ©, then remove the
Middle Gear.
2. Remove the E-Ring, then remove the Main Cam, P&
Cam and Pinch Roller Cam.
3. Remove the Polyslider Washer @, then remove the
Joint Gear.
Pinch Roiler Cam
NOTE
When you install the Pinch Roller Cam, P5 Cam and Main
Cam, align each marker. (Refer to Fig. 2-17-B)
Pinch Roller Cam
AY
Check the hole of Main Ab =
AS. C2,
Main Cam
Marker

DISASSEMBLY INSTRUCTIONS
2-18: CLUTCH ASS'Y (Refer to Fig. 2-18)
1. Remove the Capstan Brake Spring.
2. Remove the Polyslider Washer ©.
3. Remove the Clutch Ass'y, Ring Spring and Coupling
Gear.
4. Unlock the 2 supports @ and remove the Clutch Lever.
Clutch Ass'y
Capstan Brake Spring
Ring Spring
ante
Coupling Gear pan
Clutch Lever
2-19: LOADING GEAR S/T ASS'Y (Refer to Fig. 2-19-A)
1. Remove the E-Ring @ and remove the Main Loading
Gear.
2. Slide the Main Rod and remove the Capstan Brake
Ass'y.
8, Remove the Main Rod, Tension Lever, Clutch Actuator,
idler Arm Ass'y.
4, Remove the screw @.
5. Remove the LED Reflecter.
6. Remove the Loading Arm S Ass'y and Loading Arm T
Ass'y.
7. Remove the Loading Gear S and Loading Gear T.
8. Remove the Loading Gear Spring.
Loading Gear
Spring
Loading Arm T Ass'y
Loading Gear S
Loading Gear
Loading Arm S Ass'y
* Screw Torque: 5 + 0,.5kgfecm
NOTES
1. When you install the Loading Arm S Ass'y, Loading Arm
T Ass'y and Main Loading Gear, align each marker.
(Refer to Fig. 2-19-B)
Fig. 2-19-B
2. When you install the Clutch Actuator, install as shown in
the circle of Fig. 2-19-C. (Refer to Fig. 2-19-C)
Fig. 2-19-C
2-20: INCLINED S/T ASS'Y (Refer to Fig. 2-20)
+. Unlock the support © and remove the P4 Cover.
2. Remove the screw @.
3. Unlock the support @ and remove the Loading Gear
Holder.
4. Remove the Inclined S.
5. Remove the Inclined T.
6. Remove the 2 screws @, then remove the Guide Roller.
NOTE
Do not touch the roller of Guide Roller.
Inclined T
* Screw Torque: 5 + 0.2kgfecm (Screw @)
¢ Screw Torque: 0.7 + 0.2kgf*cm (Screw @)

DISASSEMBLY INSTRUCTIONS
3. REMOVAL OF ANODE CAP 3. After one side is removed, pull in the opposite direction to
remove the other.
NOTE
* After turning the power off there might still be a potential
voltage that is very dangerous. When removing the Take care not to damage the Rubber Cap.
Anode Cap, make sure to discharge the Anode Cap's INSTALLATION
potential voltage.
* Do not use pliers to loosen or tighten the Anode Cap
terminal, this may cause the spring to be damaged.
REMOVAL
1. Follow the steps as follows to discharge the Anode Cap.
(Refer to Fig. 3-1.)
Connect one end of an Alligator Clip to the metal part of a Location of Anode Cap
flat-blade screwdriver and the other end to ground.
While holding the plastic part of the insulated Screwdriver,
touch the support of the Anode with the tip of the
Screwdriver.
A cracking noise will be heard as the voltage is discharged.
Read the following NOTED items before starting work.
1. Clean the spot where the cap was located with a small
amount of alcohol. (Refer to Fig. 3-3.)
GND on the CRT
NOTE
Confirm that there is no dirt, dust, etc. at the spot where
the cap was located.
2. Arrange the wire of the Anode Cap and make sure the
wire is not twisted.
3. Turn over the Rubber Cap. (Refer to Fig. 3-4.)
Alligator Clip
GND on the CRT
2. Flip up the sides of the Rubber Cap in the direction of the
arrow and remove one side of the support.
(Refer to Fig. 3-2.)
Rubber Cap
B3-1

DISASSEMBLY INSTRUCTIONS
4. Insert one end of the Anode Support into the anode button,
then the other as shown in Fig. 3-5.
5. Confirm that the Support is securely connected.
6. Put on the Rubber Cap without moving any parts.
4. REMOVAL OF DEFLECTION YOKE
(Refer to Fig. 4-1)
1. Loosen the screw ©.
2. Remove the Convergence * Purity Magnet in the
direction of arrow.
3. Remove the 3 Wedges.
4. Remove the Deflection Yoke in the direction of arrow.
INSTALLATION
Install new Deflection Yoke in reverse steps of REMOVAL.
NOTE
After adjusting the purity and the convergence, fix the
screw @ and lock the wedges.
Convergence ¢
Purity Magnet
Deflection Yoke
B3-2

DISASSEMBLY INSTRUCTIONS
5. REMOVAL AND INSTALLATION OF
FLAT PACKAGE IC
REMOVAL
1. Put the Masking Tape (cotton tape) around the Flat
Package IC to protect other parts from any damage.
(Refer to Fig. 5-1.)
NOTE
Masking is carried out on all the parts located within
10 mm distance from IC leads.
Masking Tape
(Cotton Tape)
2. Heat the IC leads using a blower type IC desoldering
machine. (Refer to Fig. 5-2.)
NOTE
Do not add the rotating and the back and forth
directions force on the IC, until |C can move back and
forth easily after desoldering the !C leads completely.
Blower type IC
desoldering machine
B4-1
3. When IC starts moving back and forth easily after
desoldering completely, pickup the corner of the IC using
a tweezers and remove the IC by moving with the IC
desoldering machine. (Refer to Fig. 5-3.)
NOTE
Some |Cs on the PCB are affixed with glue, so be
careful not to break or damage the foil of each IC
leads or solder lands under the !C when removing it.
Blower type IC
desoldering
machine
Tweezers
. Peel off the Masking Tape.
. Absorb the solder left on the pattern using the Braided
Shield Wire. (Refer to Fig. 5-4.)
NOTE
Do not move the Braided Shield Wire in the vertical
direction towards the IC pattern.
Braided Shieid Wire
Soldering iron
IC pattern

DISASSEMBLY INSTRUCTIONS
INSTALLATION 4. When bridge-soldering between terminals and/or the
soldering amount are not enough, resolder using a Thin-
1. Take care of the polarity of new IC and then install the tip Soldering lron. (Refer to Fig. 5-8.)
new IC fitting on the printed circuit pattern. Then solder
each lead on the diagonal positions of IC temporarily.
(Refer to Fig. 5-5.)
Thin-tip Soldering Iron
Soldering Iron
oA Sj SP Pe. 5. Finally, confirm the soldering status on four sides of the
Solder temporarily <r Solder temporarily IC using a magnifying glass.
; Confirm that no abnormality is found on the soldering
Fig. 5-5 position and installation position of the parts around the
IC. If some abnormality is found, correct by resoldering.
2, Supply the solder from the upper position of IC leads NOTE
sliding to the lower position of the IC leads.
(Refer to Fig. 5-6.)
When the IC leads are bent during soldering and/or
repairing, do not repair the bending of leads. If the
bending of leads are repaired, the pattern may be
damaged. So, be always sure to replace the IC in this
case.
Solder Soldering Iron
from upper position
Supply soldering
| to lower position
3. Absorb the solder left on the lead using the Braided
Shield Wire. (Refer to Fig. 5-7.)
NOTE
Do not absorb the solder to excess.
Soldering Iron
Braided Shield Wire .
ae A
B4-2

A AIC
ACC
AE
AFC
AFT
AFT DET
AGC
AMP
ANT
A.PB
APC
ASS'Y
AT
AUTO
AN
BGP
BOT
BPF
BRAKE SOL
BUFF
B/W
Cc
CASE
CAP
CARR
CH
CLK
CLOCK (SY-SE)
COMB
CONV
CPM
CTL
CYL
CYL-M
CYL SENS
DATA (SY-CE)
dB
be
DD Unit
DEMOD
DET
DEV
E
EF
EMPH
ENC
ENV
EOT
EQ
EXT
F
FBC
FE
FF
FG
FL SW
FM
FSC
FWD
GEN
GND
H.P.F
KEY TO ABBREVIATIONS
Audio/Control
Automatic Color Contro!
Audio Erase
Automatic Frequency Control
Automatic Fine Tuning
Automatic Fine Tuning Detect
Automatic Gain Control
Amplifier
Antenna
Audio Playback
Automatic Phase Control
Assembly
Ali Time
Automatic
Audio/Video
Burst Gate Pulse
Beginning of Tape
Bandpass Filter
Brake Solenoid
Buffer
Black and White
Capacitance, Collector
Cassette
Capstan
Carrier
Channel
Clock
Clock (Syscon to Servo)
Combination, Comb Filter
Converter
Capstan Motor
Control
Cylinder
Cylinder-Motor
Cylinder-Sensor
Data (Syscon to Servo)
Decibel
Direct Current
Direct Drive Motor Unit
Demodulator
Detector
Deviation
Emitter
Emitter Follower
Emphasis
Encoder
Envelope
End of Tape
Equalizer
External
Fuse
Feed Back Ciamp
Full Erase
Fast Forward, Flipflop
Frequency Generator
Front Loading Switch
Frequency Modulation
Frequency Sub Carrier
Forward
Generator
Ground
High Pass Filter
C1-1
H.SW
Hz
Ic
IF
IND
INV
KIL
L
LED
LIMIT AMP
LM, LDM
LP
L.P.F
LUMI.
M
MAX
MINI
MIX
MM
MOD
MPX
MS SW
NC
NR
REC
REC-C
REC-Y
REEL BRK
REELS
REF
REG
REW
REV, RVS
RF
RMC
RY
S. CLK
Ss. COM
S. DATA
SEG
SEL
SENS
SER
SI
SIF
so
SOL
SP
STB
SW
Head Switch
Hertz
Integrated Circuit
Intermediate Frequency
Indicator
Inverter
Killer
Left
Light Emitting Diode
Limiter Amplifier
Loading Motor
Long Play
Low Pass Filter
Luminance
Motor
Maximum
Minimum
Mixer, mixing
Monostable Multivibrator
Modulator, Modulation
Multiplexer, Multiplex
Mecha State Switch
Non Connection
Noise Reduction
Oscillator
Operation
Playback
Playback Control
Playback-Chrominance
Playback-Luminance
Printed Circuit Board
Power Control
Phase Detector
Pulse Generator
Peak-to Peak
Right
Recording
Recording-Chrominance
Recording-Luminance
Reel Brake
Reel Sensor
Reference
Regulated, Regulator
Rewind
Reverse
Radio Frequency
Remote Control
Relay
Serial Clock
Sensor Common
Serial Data
Segment
Select, Selector
Sensor
Search Mode
Serial Input
Sound Intermediate Frequency
Serial Output
Solenoid
Standard Play
Serial Strobe
Switch

S SYNC
SYNC SEP
T TR
TRAC
TRICK PB
TP
U UNREG
Vv
vco
VIF
vp
V.PB
VR
V.REC
VSF
VSR
vss
V-SYNC
VT
X X'TAL
Y YIC
KEY TO ABBREVIATIONS
Synchronization
Sync Separator, Separation
Transistor
Tracking
Trick Playback
Test Point
Unregulated
Volt
Voltage Controlled Oscillator
Video Intermediate Frequency
Vertical Pulse, Voltage Display
Video Playback
Variable Resistor
Video Recording
Visual Search Fast Forward
Visual Search Rewind
Voltage Super Source
Vertical-Synchronization
Voltage Tuning
Crystal
Luminance/Chrominance
C1-2