Orion COMBI 2610 User manual

SERVICE MANUAL
COLOR TELEVISION/
O R I O N VIDEO CASSETTE RECORDER
COMBI 2610
CHASSIS CODE A

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.
. 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
HOW TO ORDER PARTS
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.
7. 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 metal
[Note 2] should be more than 1M ohm by
using the 500V insulation resistance meter
[Note 1].
4. lf the insulation resistance is less than 1M
ohm, the inspection repair should be
required.
[Note 1}
If you have not the 500V insulation
resistance meter, use a Tester.
[Note 2]
External exposure metal: Antenna terminal
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.

CONTENTS
SERVICING NOTICES ON CHECKING. .............ssescscsscsseesessesseneessenneseesseersesanenseneeneess Al-1
HOW TO ORDER PARTS .................05 Al-1
CONTENTS... ceeeseeteeeeeeee wee AQ-1
GENERAL SPECIFICATIONS A3-1~A3-6
DISASSEMBLY INSTRUCTIONS
1.REMOVAL OF MECHANICAL PARTS AND P.C. BOARDS ...........s.c:csccereseeeeeee B1-1, B1-2
2.REMOVAL OF DECK PARTS .......ecccessssssseesescnseseeeeseesenseesssseesseessseeeeaacenanseeseanace B2-1~B2-5
3.REMOVAL OF ANODE CAP ou... cescceseessessssesssseseessensessessenseseessseeasassanansesanesec® B3-1, B3-2
KEY TO ABBREVIATIONS ...... .. Ct-1, C1-2
SERVICE MODE LIST ............cccscscesssscessessseeeeseeeees .. C2-4
PREVENTIVE CHECKS AND SERVICE INTERVALS
NOTE FOR THE REPLACING OF MEMORYIC ..
SERVICING FIXTURES AND TOOLS ................
PREPARATION FOR SERVICING .. . C5-2
MECHANICAL ADJUSTMENTS .. .. D1-1~D1-4
ELECTRICAL ADJUSTMENTS. ote eeeeececeesanecsenseseassenseeseserseseseneeeesnenteenenene D2-1~D2-6
BLOCK DIAGRAMS
PV BE OG sich. cocscescceatctesscccbsetsncudsesersuccascnecsectns suede rovend soesrsoseotsctauy acbesesstessdducesbecsoaehs E-1, E-2
Y/C/AUDIO/HEAD AMP/21PIN/AIN/OUT .. . E-3, E-4
MICON/POWER/OPERATION .. .. E-5, E-6
PMB, Siscsetivcccsctsesecsnedcsdntirasessuuetcnswdusdcpsveussccscavestrsedeetpnendesbivoesvsoiecuesdeatustzcviecddseue E-7, E-8
PRINTED CIRCUIT BOARDS
MAINIGRID sssesecesopsdccesssceconssnscsssnoscsceceaccecacabeccadarteassetsesesbnanedeisaceussoeonSuccsenetscteosbvesbetps F-1, F-2
SYSCON.... . F-3~F-6
OPERATIONIDEGK. 4 sveshssiscceceseccscesncecedensecesesaesstocvsteseesenssinssed susie sausucedecsthassensseczcnns F-7, F-8
SCHEMATIC DIAGRAMS
Y/CIAUDIO/HEAD AMP. ............sssscsssesssssessssscscersssessssssssessescesseceseeecessseresseuonsensacasans G-1, G-2
MICON ou. cee ccceseetseeeeeeseeseoes aoe . G-3, G-4
POWER ue scscseseseeescsssessssenenaseenens vee . G-5, G-6
21PINAN/OUT . G-7, G-8
CHROMAIIF ...... . G-9, G-10
SOUND AMP 1... ccccsssnesesnsssssssesesesenesessesseeesessesceneeeenesessseseaesaeseaeatsnssessanesseesenasenenes G-11, G-12
TTEXT ....... wee G-13, G-14
TV POWER... . G-15, G-16
DEFLECTION G-17, G-18
CRT ....sseeeeeeee G-19, G-20
OPERATION .. . G-21, G-22
DECK oo sctscssiceitensticicmetedetiecss . G-23, G-24
INTERCONNECTION DIAGRAM . . G-25, G-26
WAVEFORMS .............:.ccseccsseseeeeeneee
MECHANICAL EXPLODED VIEWS . . 11, 1-2
CHASSIS EXPLODED VIEWS. ...............:0:00 . 1-3, 1-4
MECHANICAL REPLACEMENT PARTS LIST . . J1-1
CHASSIS REPLACEMENT PARTS LIST ......... J2-1
ELECTRICAL REPLACEMENT PARTS LIST ow... eee ccceeneteeeeee tenes .. J3-1~J3-3

GENERAL SPECIFICATIONS
G-1.Outline of the Product
1Q___inch(_228.6 mmV):Measured diagonally
Color CRT 76_ degree deflection
¢ ¢ -Speed 1/2" Video Cassette Recorder
XIVHS [X]Recorder/Player
[_|VHS-C {_]Player
G-2.VCR Format
VHS Standard [JNTSC PAL [JSECAM [PALM [PAL-N
[-]VHS Hi-Fi Audio System
G-3. Video Recording System :Rotary,slant azimuth two head helical scan system
Luminance Component :FM recording
Chrominance Component :Low frequency converted direct recording
G-4.Broadcasting System : CCIR System B/G
G-5.Color
System
LINTSC
[PAL
[
]SECAM
or
Monochrome
signal
G-6.NTSC Playback(PAL 60Hz) X]Yes [_]No
G-7.MESECAM [ ]Yes IX|No
G-8.Cassette Tape
IXIVHS type video cassette tape Width 12.65mm (1/2 Inch)
[_]VHS-C type video cassette tape Width 12.65mm (1/2 Inch)
G-9.Tape Speed
NTSC or PAL-M PAL or SECAM
ISP 33.35 mm/sec XISP 23.39 mm/sec
[JLP = 16.67 mm/sec [_JLP 11.69 mm/sec
[|SLP 11.12 mm/sec
G-10.Recording/Playback Time
NTSC or PAL-M(NTSC Playback Only)
[Xjat SP Mode Max. 210 min. (with T-210 cassette)
[_Jat LP Mode Max. 420 min. (with T-210 cassette)
[Jat SLP Mode Max. 630 min. (with T-210 cassette)
PAL or SECAM
[XJat SP Mode Max. 300 min. (with E-300 cassette)
[_Jat LP Mode Max. 600 min. (with E-300 cassette)
G-11.Rewind/Fast Forward Time(Approx.)
AC: DX|F F :2'15" /Rew:1'48" ((_] T-120 cassette [X] E-180 cassette)
| JFF :3'40" /Rew:2'50” ((_] T-120 cassette [ ] E-180 cassette)
DC: IXJF F :3'40”/Rew:2' 50” ({_] T-120 cassette E-180 cassette)
G-12.Search Speed
xSP Sand 7 Times(PAL)
XjSP 3.and_ 5. Times(NTSC)
[_|SLP _sCTimes
G-13.Slow Speed
XjsP 1/10 Times
[_JLP Times
[_|SLP __sCTimes
G-14.Frame Advance
[X|SP 1/10 Times
[_JLP Times
[| ]SLP __sOTimes
G-15.Antenna Input Impedance
VHF/UHF 75 ohm unbalanced
A3-1

GENERAL SPECIFICATIONS
G-16.Tuner and Receiving channel
X{iTuner Syatem
Tuner : Contactless Electric tuner
[ |Oscar(W/O HY
Receiving channel
VHF (LOW)
(HIGH)
(CATV)
UHF
Tuning System
Ix]Frequency syn.
G-17.Preset Channel
80 channels
G-18.Intermediate Frequency
Picture(FP)
Sound (FS)
FP-FS
G-19. Stereo/Dual TV Sound
[_]¥es({_|NICAM
G-20. Video Signal
Input Level
Output Level
S/N Ratio
C1
1
1
53
Horizontal Resolution at SP Mode
G-21.Audio Signal
Input Level
Line -3.8
RCA -3.
Output Level
Line -3.8
RCA -
PER)
E2
E5
ch
ch
E4
E12
ch
ch
[x]JOscar(W/ HYPER)
Sl
E21
ch
ch
S41
E69
ch
ch
{_ ]Voltage syn.
MHz
MHz
MHz
GERMAN __[JUSA
Vp-p/ __75__ohm
Vp-p/ __75 ohm
dB (Weighted)
240 Lines
dB / _ 50 Kohm
dB / _ 50 Kohm
dB/ 1 Kohm
dB /
Kohm
(OdB=0.775 V rms)
S/N Ratio at SP Mode
Harmonic Distortion :
Frequency Response :
G-22.Heads
Video Xl
FM Audio [|
Audio / Control
Erase Xl
G-23.Motor: __3 Motors
[X|Tape/Cassette Loading
[x|Cylinder (Direct Drive)
{x|Capstan (Direct Drive)
G-24.Power Source
230 Vv
DJEXT DC Jack 12
G-25.Power Consumption:
(Approx.)
Stand by:
Per Year:
2
Xj1
42 dB
15. % (1KHz)
at SP
at LP Mode
Mode __100
O
2Tuner System
[_]France CATV)
[_]Others
[|Others
MHz
MHz
MHz
JAPAN)
X|No
Hz ~
Hz ~
KHz
KHz
10
at SLP Mode
Rotary Heads
Rotary Heads
1
XJAC 50Hz [JAC 60Hz
Stationary Head ( k]Mono
1 Full Track Erase
Hz ~ KHz
[ |Stereo(L,R) )
Vv
50 Wat AC 230 Vv 50._—-Hz
50 Wat DC 12 Vv
(at TV and VCR ON)
6 Wat AC 230 Vv 50. —-Hz
-_kWh/ Year
A3-2

GENERAL SPECIFICATIONS
G-26.Dimensions(Approx.)
287
mm(W)
_
356
mm(D)
_
318.5
mm(H)
G-27.Weight(Approx.)
Net
:
_88
Kg(_-__
lbs)
Gross:
__10.5
Kg
(__-___Ibs)
G-28.Cabinet
Material
Cabinet
Front:
IxIPS
[(x]94HB
[
JDECABROM
L
JABS
[ ]94v2
XINON-DECA
[_]94v0
Cabinet
Rear:
xJPS
[Xx]94HB
[
|DECABROM
L
JABS
—
[
]94v2
[<]NON-DECA
[|
|94V0
Jack
Panel:
PS
>x]94HB
|
|DECABROM
ABS
~~ [
]94Vv2
>X<JNON-DECA
[
]94V0
G-29.Cassette
Loading
System:
[X]Front
Cassette
Loading
System
[_]Top
Loading
System
G-30.Tape
Counter:
Linear
Time
Tape
Counter
G-31.Protector:
[X]Power
Fuse
[x]Dew
Sensor
G-32.Regulation
Safety
UL
CSA
|SAA
SI
[XICE
BS
NF
|_
|NEMKO
IFEMKO
IDEMKO
[_JSEMKO_
[_|NZ
HOMOLO
SABS
CNS
|
|NOM
|
JAS3159
DENTORI
[|
JUNE
GOST
Radiation
FCC
|
|DOC
LJFTZ
PTT
(X|CE
SABA
SI
NF
INZ
HOMOLO
CNS
CISPR13
IDENTORI
AS/NZS
INONE
X-Radiation
PTB
[_]DHHS
[
JHWC
LJDENTORI
[
J|NONE
G-33.Temperature
Operation
5
°C~__40
°C_
Storage
-20_
°C~_
60
°C_
G-34.Operating Humidity
Less than 80 %RH
G-35.Clockand Timer
Built-in _1 Month _ 8 Events Programmable Timer
One Touch Recording : Max Time _SP Mode:5_ Hours
Sleep
Timer
[X]Yes
Max
_120__
Min.(
_10_
Min.
Step)
On/Off
Timer
X]Yes
_1.
Programs
Wake
Up
Timer
[
]Yes
Programs
G-36.Timer back up Time
More than __30 Minutes (at Power Off Mode)
A3-3
CISEV
[IIEC65
SISIR
NONE
(SEV
[JUNE
[_|No
[_|No
[X|No

GENERAL SPECIFICATIONS
G-37.Terminals
XX]VHF/UHF Antenna (x]Din Type (_JF-Type [ |France Type
[X]Video Input(Front) {XPhono Jack (RCA 98.3) (Option)
[_]Video Input(Rear) |Phono Jack (RCA ¢8.3)
Video Output(Rear) [_ |Phono Jack (RCA ¢8.3)
[xjAudio Input(Front) [xJPhono Jack (RCA 98.3) (Option)
[ jAudio Input(Rear) {_|Phono Jack (RCA 48.3)
[_ |Audio Output(Rear) [_JPhono Jack (RCA 68.3)
X]21 Pin (x_1) XIDC Jack 12V (Center +)
[_JAC Inlet [_]Ext Speaker [ |Diversity
[_]Ear Phone [xjHead Phone
G-38.Indicator
Power x]Rec/OTR [_]Play [_|Tape-In [x]Timer Rec
(__) (Red _) (__) (__) (Red _)
en By [_]On Timer [_]JRental Mode(or Clear Picture)
(Red —
(__)
[ ]One Touch Playback(Button Lights) [_]Dew Sensor(Play LED Flush)
G-39.On Screen Display
]Menu
[ JATS
>x{Timer Rec Set
XICh Set-up
{xjAuto Tuning [_]Ch Mapping
XJCh Tuning XICH Allocation
IXITV Set-up
[>xlOn/Off Timer Set [ JAudio
XjPicture [JTuning Mode
X]VCR Set-up
[x]Auto Repeat On/Off [_]System Select
[_]Scena Repeat
{ JUser Registration
x]System Set-up
[X|Clock Set(>x]Calendar [“]12H [X]24H)
>x]Language
[_|G-CODE(or SHOWVIEW or PLUSCODE)No. Entry(Option)
[Clock XICH/AV
X]Tape Counter [_]Tape Speed
x]Sleep Time [x]Sound Mute
[x|Control Level (X]Vol,&jBright,<jCont,Color,[_|Tint,jSharpness)
ix]Play/Stop/FF/Rew/Rec/OTR/T-Rec/Pause
[xjAuto Tracking/Manual Tracking
[XJIndex [x]Repeat XIDEW
[_]Tone 1/2 [_]Stereo
G-40.0SD Language
>XJEng >x]Ger X{Fre [Spa XlIta [_]Por
OSD Language Setting
Eng )x|Ger [_jFre (Spa [_]ita [ Por
G-41.Speaker
3 inches Imp. 8 ohmx _1_ pes
Max __ 1.2. ~W Typical
10% _ 0.8 W Typical
G-42.EXT Speaker
[ ]Yes WiImp ___ ss ohm >x]None
A3-4

GENERAL SPECIFICATIONS
G-43.Carton
Master Carton: [_|Need XJNo Need
Content: ----_ Set
Material: — _ /_-- Corrugated Carton
Dimensions:
---
mm(L)
__----_mm(W)
_
----
mm(D)
Description of Origin []Yes [JNo
Gift Box
Material
[_]AB
Double/Brown
Corrugated
Carton
({_]with
Photo
Label)
[XJAB
Double/White
Corrugated
Carton
([]with
Photo
Label)
LJAB
Double
Full
Color
Carton
W/Photo
Dimensions:
347
_mm(L)
_408
mm(W)
_
392
mm(D)
Design:
As
Per
_
BUYER
's
Description
of
Origin:
[_]Yes
IX|No
Drop
Test
Natural
Dropping
At
1
Corner
/
3
Edges
/
6
Surfaces
Height
[
]25cm
[Blicm
[
]46cm
[x]62cm
[]80cm
Container
Stuffing:
__1160
Sets
/
40’
container
G-44. Accessories
[x]Owner's Manual([_]W/ Guarantee Card) [German]
[-]Channel
Film
[|Dew
Caution
Sheet
[x]Remote
Control
Unit
[
JAC
Plug
Adaptor
L
JU/V
Mixer
{x]Quick
Set-up
Sheet
[xJRod
Antenna
({_]One
Pole
[XJTwo
Pole/[_|F-Type
[DIN
Type
[_|France
Type)
[
Loop
Antenna([_|F-Type
[_]DIN
Type
[]France
Type)
[X{DC
Car
Cord
(Center+)
[X|Battery
(UM-_4
x
2)
[XjGuarantee
Card
[JAC
Cord
[
JWarning
Sheet
[_JAV
Cord
(2Pin-1Pin)
L|Circuit
Diagram
(JRegistration
Card
[_JAntenna
Change
Plug
(_]PTB
Sheet
[_|Service
Facility
List
[]300
ohm
to
75
ohm
Antenna
Plug
LJRF
Cable
[_JEuro
Warranty
Information
Sheet
G-45.Other Features
{xJAuto
Head
Cleaning
[XlIndex
Search
fxjAuto
Tracking
XjAuto
Search
[ICH Auto Set-Up/Auto Clock [ |ATS
L_JVIDEO PLUS+(SHOWVIEW,G-CODE) * Option «
DJHQ
(VHS
Standard
High
Quality)
[vps
[ppc
x|Auto
Power
On,
Auto
Play,
Auto
Rewind,
Auto
Eject,Auto
Repeat
System
[XiForward
/
Reverse
Picture
Search
L_]|SQPB
[_JOne Touch Playback | |JCATV
[x]Auto
CH
Memory
[_]Anti-Theft
[_
]Rental
Mode
XT’Text({_]Fast,[_
|Top,
XjUni)
XITV
Auto
Shutt
off
Function
XITV
Monitor
G-46.Switch
Front
{X]Power(Tact)
{x]Channel
Up
[x]Volume
Up
{x]Play
{<JChannel
Down
>x]Volume
Down
[_|Pause/Still
(XJF.FWD/Cue
[X|Rew/Rev
[_]System
Select
ix]Eject/Stop
x]Rec/OTR
[_JOne Touch Playback {_|Main Power SW
Rear
[_|Color On/Off (SECAM only) [ |Degauss
X|Main
Power
SW
[JAC/DC
A3-5

GENERAL SPECIFICATIONS
G-47.Magnetic Field
IBV: +0.45G (IBV: +40.35G CIBV: +0.25G
BH : 0.18G BH : 0.30G BH : 0.30G
CIBV: -0.15G [JBV: -0.25G [IBV : -0.50G
BH : 0.15G BH : 0.15G BH : 0.30G
G-48.Remote Control Unit: RC-CH
Power Source: DC 3. V Battery UM - _4x2
Xj O/AV [{xiCh/Tr/Page Up fx]Power
x1 XICh/Tr/Page Down >x]Eject
Xj 2 {x]Volume Up [ |Play
i} 3 x]Volume Down [_|Play/Up
x] 4 x/Mute >x]Play/Slow/Up
Xx 5 {XjMenu [ |F.FWD
XI 6 SdEnter/Hold SqF.FWD/Right
x7 [x]Cancel/Ch Skip/FeT*8 [ ]Rew
xX] 8 [_]Set Up <]Rew/Left
9 [_|Set Down (<]Pause/Still
[ v.. [_]Set Right | |Pause
[x}Call {_]Set Left Stop
XX|TV Monitor [x]Program [x|Stop/Down
>XSleep Timer [_]Speed [XJREC/OTR
[>X|Timer Rec [>x]Text/Mix/TV XJATR/Reveal
>XiCounter Reset [x]Index/Time Text
[JAD Skip x]Zero Return
A3-6

DISASSEMBLY INSTRUCTIONS
1. REMOVAL OF MECHANICAL PARTS 1-3: TV/VCR BLOCK (Refer to Fig. 1-3)
AND P.C. BOARDS 1. Remove the 2 screws @.
; :
2.
Disconnect
the
following
connectors:
1-1:
BACK
CABINET
(Refer
to
Fig.
1-1)
(CP351,
CP757,
CP302,
CP403
and
CP401).
1. Remove the 4 screws (. 3. Unlock the support @.
2.
Remove
the
2
screws
@).
4.
Remove
the
TV/VCR
Block
in
the
direction
of
arrow.
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
Front Cabinet
TVAVCR Block
1-4: MAIN PCB (Refer to Fig. 1-4)
1. Remove the screw @.
2. Remove the Main PCB Holder.
3. Remove the 3 screws @.
4. Disconnect the following connectors:
(CP810, CP820, CD404, CD501 and CP601).
1-2: CRT PCB (Refer to Fig. 1-2) 5. Remove the Main PCB in the direction of arrow.
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.
@ Back Cabinet
Front Cabinet CRT PCB
Bi-1