Nagra Nagra-D User manual

NAGRA-D
Operating Manual
Version 2.00

NAGRA-D REGISTRATION FORM
Please carefully fill in this page (IN CAPITAL LETTERS) and return it to us upon receipt of your
NAGRA-D. We will then
be able to send you upgrade pages for your manual, as well as inform you of
future developments in software.
Please return this page to: Kudelski SA
Route de Geneve, 22
1033 CHESEAUX
SWITZERLAND
ATTN: Support Technique
NAGRA-D Serial Number
Purchase date
Your Name I dept.
Company name
Street Name I N°
Town I City
Zip I Postal code
Country

NAGRA DIGITAL
Chapter 1 Introduction
Chapter 2 Location
of Keys I Connectors I Functions
Chapter 3 Operationl settings
of the NAGRA-D
Chapter 4 Synchronization
Chapter 5 External Control
Chapter 6 Specifications
APPENDIX A Application aid sheets
Kudelski
SA, Route de Geneve 22, 1033 Cheseaux, Switzerland.
TEL: +
41 .21.732. 01 . 01
FAX: + 41.21 .732.01.00

GUARANTEE
NAGRAIKUDELSKI certifies that this instrument was thoroughly inspected and tested prior to leaving
our factory and is in accordance with the data given in the accompanying test sheet.
We guarantee the products of our own manufacture against any defect arising from faulty
manufacture for a period of one year from the date of delivery.
This guarantee covers the repair of confirmed defects or, if necessary, the replacement of the faulty
parts, excluding all other indemnities.
All freight costs, as well as customs duty and other possible charges, are at the customer's expense.
Our guarantee remains valid in the event of emergency repairs or modification being made by the
user. However we reserve the right to invoice the customer for any damage caused by an
unqualified person or a false manoeuvre by the operator.
We decline any responsibility for any and all damages resulting, directly or indirectly, from the use of
our products.
Other products sold by KUDELSKI S.A. are covered by the guarantee clauses of their respective
manufacturers.
We decline any responsibility for damages resulting from the use of these products.
We reserve the right to modify the product, and lor the specifications without notice.
Chapter 1

CHAPTER 1
INTRODUCTION
Introduction
Using this manual
General Description
Important notes
Electrostatic discharge
Tape care/handling
Output connection
Head cleaning
The "footprint"
Longitudinal tracks
Time code
Control track
Cue track
Helical tracks
Tape speed
Putting the machine
in the 7" reel mode
Powering the NAGRA-D
External powering using the ND-AP
External powering using the ND-EPC
Chapter 1

INTRODUCTION
USING THIS
MANUAL
This instruction manual is designed to enable the operator to understand, and use the NAGRA-D.
The basic principles
of audio recording or digital technology are not covered, except where the
concept within the
NAGRA-D is different from that normally app'lied. The manual is broken down into
chapters covering different aspects of the machine. At the end
of the manual there is a
comprehensive index, which should guide the operator to the correct page quickly. The pages are
numbered from 1 to N for each chapter.
If in the future there is a page to be added in the middle of a
chapter, then the new page to
be added will have a page number followed by a decimal point and
then
1, 2 or 3 etc. For example if a page is to be added between pages 5 and 6 of a particular
chapter then the new page will be numbered 5.1. This manual covering Version 2.X software for the
NAGRA-D replaces all previous editions.
GENERAL DESCRIPTION
The concept
of the NAGRA-D was to build a truly professional machine based on a format that is
reliable and lends itself well to archiving. The arguments regarding the format, choice
of tape etc. are
not covered here.
The NAGRA-D is a
four channel digital audio recorder having 24 bits per sample recording on
6.35mm metal oxide tape. It accommodates the sampling frequencies of 32 kHz, 44.1 kHz and 48
kHz (with the on-board AID converters) rendering it suitable for all types
of professional recording
applications. The NAGRA-D is transparent to the AES bus giving connection possibilities to a wide
range
of external digital equipment, which even give it the possibility of recording at sampling
106 frequencies
of 64, 88.2 and 96 kHz. The format of the NAGRA-D records 4.608 x bits per
second, meaning that on a 5" reel
of tape contains 16.03 x 109 bits (16 giga bits) of data. The
combination
of selected tape speed and number of channels to be recorded gives tape durations to
satisfy all applications.
TAPE DURATIONS
48 kHz
44.1 kHz 32 kHz
5" reel 4 channel mode 1 hr. 1
hr. 05 mins. 1 hr 30 mins.
2 channel mode 2 hrs. 2 hrs. 10 mins. 3 hrs.
7" reel 4 channel mode 2 hrs. 2 hrs. 10 mins. 3 hrs.
2 channel mode 4 hrs. 4 hrs. 20 mins. 6 hrs.
Apart from the two AES digital inputs, four analog inputs are available for either line
or microphone
input sources.
When in microphone operation each of the four inputs is switchable between Dynamic,
"T" powering,
+12V phantom and +48V phantom. The Signal levels are adjusted using the input
sensitivity potentiometers, and the levels are indicated
on the four microprocessor controlled meters.
The four head scanner
(2 for recording and 2 for playback) allows read after write (off tape
monitoring) which can be heard through the two, level adjustable, headphone outputs.
The three longitudinal tracks (Control, CUE
and Time Code) give flexibility of operation and
additional features
never before seen in a professional recorder.
Microprocessor control
of the entire machine gives almost limitless possibilities, not only as far as the
digital recording is concerned, but also for external control, fault diagnosis, tape directory
management etc., from a PC equipped with the NADCOM software (KSA # 10514)
Chapter 1

This has been a brief outline of the machine, all the pOints mentioned here will be covered in more
detail later.
NOTE: The NAGRA-O has few user selections I switches inside (except the type of CUE microphone
to be used -factory selection is for the NO-CM and one bank
of OIL switches on the direct
amplifier, the use
of which is covered under the relevant chapter). All other mode selections
etc. are made via
an external PC or by the MENU mode.
Chapter 1 2

IMPORTANT NOTES
ELECTROSTATIC DISCHARGE
The NAGRA-D's electronic circuits
are all SMD devices using CMOS and MECL technology, which
renders them very susceptible to electrostatic discharge. These circuits are fully protected while
installed
in the machine, however if any of the circuits are to be disconnected and removed from the
machine then the operator must at all times
be connected to ground via a wrist bracelet and the
circuits must only
be placed on a conductive mat also connected to ground. If circuits are to be
transported for any reason then they must be kept in anti-static plastic bags at all times. All the
circuits are printed with the international sign indicating the danger. Eproms can also
be damaged if
frequently handled therefore we suggest this earthing procedure whenever work is to be carried out
on the NAGRA-D.
TAPE
CAREl HANDLING
Although scissors editing is technically possible
on the NAGRA-D, it is not recommended to touch the
tape unless absolutely necessary. Cotton gloves are recommended for this, in order to prevent
moisture (finger prints) from the skin affecting the tape or clogging
of the heads.
When certain tapes are rewound, the air trapped between the windings during rewinding can cause
the tape to wind unevenly
on the reel, meaning that the edges of the tape stand proud. If the plastic
reel
is then handled, there is a risk of physically damaging the edges of the tape. On the lower edge
of the tape in the format
of the NAGRA-D are the time code and Control track (see FORMAT) which
will cause problems for playing back the tape
if the edges of the tape are damaged. Normal winding
speed
in each direction is 4 mls however slower winding can be selected in the MENU mode (1, 2, 3,
4 m/s).
ANALOG OUTPUT CONNECTIONS (TO A MIXER)
The NAGRA-D does not have transformers
on its analog audio outputs. This means that if the
outputs are to
be connected to the inputs of a mixing console (so that the four channels can be mixed
down
to two) then be sure that the inputs to the mixer are set to the LINE position before the
connection to the NAGRA-D
is made. If they are set to the Phantom +48V position then the output
OP-Amps
of the NAGRA-D will almost certainly be damaged.
Chapter 1 3

HEAD CLEANING
The NAGRA-D, like any tape recorder requires that the user cleans the heads and other parts of the
tape transport periodically. The frequency
of this depends on many factors, such as the operating
environment, the tape type, mechanical alignment of the machine's transport etc. as with any
recorder. It is therefore difficult to give a specific
time frame. As a guide, we suggest that the heads
are cleaned once per day
if the machine is being heavily used. However if the cloth does not appear
to be dirty
after cleaning, and no apparent problems have occurred then more time can be left before
cleaning.
If however the scanner etc. has been touched, and there are finger marks on it then the
heads need to be cleaned immediately. Increasing error count in the ECC display gives
an indication
that the heads need to be cleaned.
Procedure
To clean the heads etc. firstly remove the tape and carefully clean the entry and exit guides of the
scanner along with the longitudinal erase head and the longitudinal cue I control I TC head, using a
soft cloth which
has been dipped in alcohol (preferably MYTHYL alcohol but ISOPROPYL can also
be used). Make sure that the ramp
of the scanner is also perfectly clean as any deposit on this ramp
will cause
the tape path to be altered which can affect both recording and playback.
Once this has been done the rotary heads in the scanner can be cleaned. There are two
different
methods for doing this. The first is to hold the Alcohol soaked cloth against the surface of the scanner
using,your thumb, then gently rotating the scanner with the other hand while keeping the cloth still.
The other is to lace a tape, put the machine in STOP, press RDY and then gently press the alcohol
soaked cloth against the rotating scanner
NEVER MOVE VERTICALLY UP AND DOWN ON THE SCANNER AS THIS
CAN BREAK THE HEADS. ALWAYS CLEAN THE SCANNER
IN A
HORIZONTAL MANNER.
NEVER USE Q-TIPS OR OTHER COTTON BUDS AS THEY WILL LEAVE
HAI
RS ON !THE HEADS OF THE SCANNER.
Chapter 1 4

THE "FOOTPRINT"
- ........ ---- DI REtTI III IF TAPE TRAVEL
Ill: TRACK
I------------------------ ------ ----------~--.---~
F G H W
REFEREHCE EDGE
OXIDE SIDE I
ABC DEY
Diagram of the track layout on the tape.
The NAGRA-D records information
on the tape not only using the rotary heads in the scanner but
also using longitudinal heads. The "footprint" above shows the positioning of these various tracks on
the tape.-(diagram is not to scale).
A. Time code track lower edge Reference edge
B. Time code track upper edge 0.300
C. Control track lower edge 0.500
D.
Control track upper edge 0.800
E. Digital data area lower edge (Ref. point) 0.900
F.
Digital data area width 4.650
G. Cue track lower edge 5.700
H. Cue track upper edge 6.200
I.
Helical track width 0.07
J. Helical track pitch 80.70
~m
N.
Helical track data length 44.20
cp.
Track angle 5.835°
W. Overall tape width 6.250
(± 0.05)
Y. Beginning of data 0.971
All measurements are in mm (unless otherwise specified) taken from the reference edge of the tape.
Chapter 1 5

LONGITUDINI AL TRACKS.
As shown in the diagram above there
are three longitudinal tracks which are:
TIME CODE TRACK
This is a longitudinal SMPTE/EBU
80 bits time code track recorded using Manchester Bi-phase which
allows the reading
of time code at very high speeds. The internal time code system of the NAGRA-D
includes a time code generator corresponding
to all the presently used formats (including drop
frame). Time code
can be recorded from the internal generator or an external source. Both the time
and user information can be set from the keyboard or a PC. Although time code "Pre-striping" is
permitted, recording of time code after
the event (Post Striping,) is not allowed as doing this will
disturb the control track of
the machine and will make the tape unreadable.
When in rapid winding (especially
at half-speed) the time code passes the head at more than 60
times nominal speed and cannot
be correctly read from the tape. In these instances the time code
output and display
is updated from the counter roller.
CONTROL TRACK
This track is similar to the control track of a video recorder. Data
is recorded along the tape which
serves
as "markers" indicating the start point of each helical scan. The purpose of these "markers" is
to enable the servo system to synchronize the position ofthe heads
af the scanner with respect to the
position of the helical scan
on the tape, ensuring that the heads track the helical scans accurately
and do not read between the scans. This track cannot be accessed by the user and contains no user
data.
CUE TRACK
-
The CUE track of the NAGRA-D is a low quality analog track which has two principle functions:
1. In normal operation it will record a mix of the 4 digi,tal channels, from either the analog or
digital inputs, aillowing rapid audible searching
on the tape of a particular point in the
recording. A cue microphone
can also be recorded at the same time if desired. This is the
normal mode and will operate
as described whenever tlile machine is put into recording mode
and the cue channel "lock out" switch is
in the READY position, and also when no cue
microphone is connected
to the external input. The output of the CUE track can only be
monitored on the headphone outputs, if searching is being done at speeds other than
nominal then the analog
and digital outputs of the NAGRA-D are muted. The Cue track
output is automatically switched
to the headphone outputs whenever the tape is not at
nominal speed.
2. It can be used to record Cue information by means of a commentary microphone (ND-CM),
connected to the EXTENSION socket
on the left-hand side of the machine.
Chapter 1 6

Synoptic diagram of the cue track
CH
1234
JJJJ
CUE 'TRACK
HEAD
HELICAL TRACKS
Each helical track (or scan) on the tape contains the information coming from a pair of inputs (either
1
+2 or 3+4). These tracks are made up of 192 sectors of digital information sent from the ECC (Error
Correction Code).
This shuffling means that it is perfectly possible
to record channels 1+2 initially and then at a later
date record channels 3+4 (or vice-versa) using the INSERT feature, providing that the machine is in
the high speed four channel mode. However it is not possible to record channels 1+3 and later 2+4
as this would require additional heads in the scanner allowing read before write.
The helical tracks
of the NAGRA-O are recorded by a rotating scanner equipped with VHS heads,
which rotates at 62.5 revolutions per second (3'750 R.P.M.
at a sampling frequency of 48 kHz.) and
the track width
of each scan is of 70J.1m.
TAPE SPEED
Two different tape speeds are available, either 49.6 mm/s (approx. 2 ips.) for two channel operation,
giving approximately 2 hrs of continuous recording with a
13 cm (5") reel (at 48 kHz sampling
frequency), or 99.2 mm/s (approx. 4 i.p.s) for 4 channel operation giving approximately 1 hr of
recording using a 13 cm (5") reel (at 48 kHz sampling frequency). Tape speed selection is made in
the MENU mode, and the factory default setting is the high speed four channel mode. The NAGRA-O
will equally well operate with
18 cm (7") reels respectively doubling these recording times. The reel
motors need to be rotated and a special cover (NO-SET) needs to
be fitted to the machine in order to
use 7" reels.
Chapter 1 7

PUTTIN,G THE MACHINE INTO THE 7" REEL POSITION
The NAGRA-D is delivered in the 5" reel configuration, but it can easily be moved to the 7" position.
The machine must be switched ON (without tape) in order to ensure that the parking brakes are
released. Loosen the two screws on the front of the main control panel so that the deck plate of the
machine can be lifted (or the two thumb-screws if the ND-PP potentiometer protection bar is fitted).
Open the plexi-glass cover of the transport and remove the tape and the empty ree k Insert a 1.5mm
Allen Key (for machines with 1000325 or lower) (a 2mm Allen key for machines with serial number
higher than 1000325) into each of the three holes, in tum, around the r eel motor to be moved.
Loosen each screw in turn by MAXIMUM HALF A REVOLUTION then REMOVE THE ALLEN KEY.
Lift the deck plate of the machine, and gently rotate the motor to the 7" position by turning the grey
plastic cover of the reel motor. Once the motor is fully turned, and the marks on the deck plate are
aligned with the 7" position indications then re-insert the Allen key and re-tighten the three screws.
NOTE: If the screws are loosened more than half a turn it is possible that they will fall inside the
machine. Secondly i.f the key is not removed when rotating the motor the brakes will be
damaged.
It should also be noted that when in the 7" reel position, the slowing down of the reel motors during
fast winding, as it reaches the end of the tape does not operate. This is because the diameter of the
central hub of a 7" reel is not the same as that of a 5" reel.
Chapter 1 8

POWERING THE NAGRA-D
The NAGRA-D is fitted with
and internal battery pack, of the BETACAM ™ style. This internal battery
pack must be fitted to the machine
at all times, as without the internal battery the machine wi ll not
operate even
if connected to the external charger unit, or supply. A fully charged battery pack under
normal circumstances will give approximately 2
hrs of continuous 4 channel recording. The NAGRA-
D runs permanently
off this internal battery pack, which acts as a :buffer, even when connected to the
charging unit.
The NAGRA-D's charger unit supplies a 40 mA trickle charge permanently to avoid reverse-
polarisation
of the cells in the battery pack. When the battery needs charging the charger is
instructed
to supply the 400 mA charge current. The internal battery will only be charged when the
machine
is in LOAD or PARK position. The NAGRA-D communicates with this charger and instructs
it
on the amount of current to supply, at any particular time. The status of the internal battery, in
terms of residue etc, can be seen at any time on the LCD display in the MENU mode (see MENU's in
chapter 3). The internal battery pack can be removed from the machine and charged on a normal
BETACAM ™charger
if desired: However if the internal battery is removed from the machine, then
the memory and settings will
be lost. A large capacitor will. keep t.he internal settings for a couple of
minutes. The machine will use default modes when powered up again. If settings have been saved in
a "Template" (see menus) then these settings will not
be lost and can be restored once a new battery
is put into the machine.
NOTE:
When the internal battery is replaced' then the battery management system assumes
that the new battery installed
is already full and will indicate 100 % in the battery
reserve menu.
If however the operator knows that the new battery is only charged to
25, 50, or 75 % this
can be stored in the memory of the machine in the menu mode
and the machine will take this preset value into account from the start.
WARNING: The battery pack
in the NAGRA-D is of the Betacam ™ type fitted with a 2mm DC
two pole connector (positive pole
on the external connector) WITHOUT any form of
internal electronic protection or control. Battery packs fitted with this type of internal
surveillance
are fitted with a 3 pole connector that is physically too large to be
connected inside the NAGRA-D. The internal circuits of such batteries also cause a
slight drop in voltage
on the output and this causes problems within the NAGRA-D.
It
is recommended to run the internal battery completely flat from time to time to
avoid any memory effect accumulating
in the NiCd.
NOTE: As the internal battery
is always inside the machine the life of the battery is
shortened as it is charged at a temperature of about +40 ·C. Meaning that if a full 2
hrs of recording time is needed
on the internal battery then the battery must be
replaced with one that has been externally charged. The effective life of the internal
battery is reduced
to about 1 h 20 min if left· in the machine.
Chapter 1 9

EXTERNAL DC POWERING
USING
THE ND-AP OPTION
Apart ,from the use of the ND-EPC external DC/DC converter, direct powering of the NAGRA-D from
an external battery is possible, assuming that the ND-AP auto power option , is installed in the
machine.
As mentioned above, the machine must always have
an internal battery fitted. However if the
machine is
to be powered all the time externally, then it is possib' le to install a very small (1 Ah)
internal battery which makes
the machine lighter to carry. If the ND-AP option is installed in the
machine then external batteries having a voltage between
11 and 14V (MAX) can be connected to
the cable supplied with the option. The ND-AP option will automatically select the external battery if H
has a voltage greater than 11V. The indication of the battery reserve in the menu display will
increase while the external battery
is being used but in fact this is meaningless as the actual state of
the internal battery
is not changing. In this mode of operation, the external battery will not charge the
internal battery, meaning that
the internal battery of the machine will need to be periodically charged
using
an external charger.
IMPORTANT: Please note that the external battery must
be connected to the GROUND and the
CONTROL connections of the external power connector NOT THE POSITIVE
terminal. If
is not connected in this manner then the internal fuse of the NAGRA-D
will blow.
THE ND-EPC OPTION
The NAGRA-D may be powered with the external DC to DC converter ND-EPC (10505). This
external accessory
is fitted with a 4 pole XLR (male) socket, to which an external DC supply from 11
to 30 volts can be applied in either polarity.
Dimensions 150mm x 120mm x55mm
(L xW x H).
Weight
1.1 kg.
Supply voltage
11 - 30 V dc.
NOTE: The NAGRA-D must be switched ON for this accessory to work. The internal battery of the
machine will not charge if the machine is turned OFF.
CONNECTION:
The three pole LEMO type connector connects to the "POWER" connector on the right-hand rear
side of the NAGRA-D (where the normal mains charger ND-CCC ,is usually connected). The 4 pole
XLR connector allows the ND-EPC to be connected to the external source which must be an external
battery between 12
and 24 V, or an external DC supply with a voltage between 11V and 30V DC. It is
recommended that connection of the LEMO connector to the NAGRA-D be made before the external
supply / battery
is connected to the 4 pole XLR connector.
Chapter 1 10

OPERATION USING THE ND-EPC
The external converter, once connected to the DC supply, supplies the internal battery of the
NAGRA-O with the power necessary
to run the NAGRA-O as well as the charging current required to
charge the internal battery. The output current of the NO-EPC is controlled by the CPU inside the
NAGRA-O, which also manages the charge current
of the internal battery, according to its state of
charge.
Throughout the time when the internal battery is at less than 100% charge, a charging current of
0.42A is sent to the internal battery of the machine, providing the NAGRA-O is switched ON.
Automatic charging of the internal battery will start
as soon as the external converter is connected to
the machine and the voltage ofthe internal battery is lower than 12V. This is a minimal initial charge
necessary to bring the battery
up to a level which will allow the NAGRA-O to be switched ON. It is not
necessary for the NAGRA-O to
be switched ON for this to occur. A security circuit will stop the
converter when the external power source voltage drops to less than 10.SV
LED INDICATIONS
ON THE ND-EPC
The LED "Input Voltage" indicates that the NO-EPC is
ON and is connected to the external source
and that the NAGRA-O is switched ON. It will flash if the NAGRA-O is not connected.
The "Output Current" LED indicates inversely with respect to the output current
of the NO-EPC. It will
be dimly lit if the drain by the NAGRA-O is large (max current supply) (while the internal battery is
less than 12 V as well as when the NAGRA-O is switched OFF)
It will be lit brightly when the NAGRA-O is fully charged and hence the current being supplied by the
NO-EPC is less important.
The" , " on the display of the machine will indicate whenever the internal battery of the machine is
being charged. (see display indications in the time code section of this manual).
Chapter 1 11

CHAPTER 2
LOCATION OF KEYS I CONNECTORS I FUNCTIONS
Description of parts located on:
Deck plate
Main control panel
Front face
Left-hand side panel
Right-hand side panel
Chapter 2

12 3 12
1.
~ POWER .,j! 3.
!
[;: .! -!.
. ~,
UiOItaDG IW
CHANNEL 1 CHANNEL 2 CHAHNEL 3 CHANNEL"
.'·ill]!J
2
1
6
10 4
4 5
8
9
7
11
11

TAPE DECK
(Refer to photograph number
1) This shows the location of various mechanical parts referred to
elsewhere in the manual.
Description
1 Supply reel holder
2 Take-up reel holder
3 Scanner (for recording helical tracks)
4 Tape tension roller
and tape counter roller
5 Pinchroller
6 Capstan shaft
7 Tape engagement carriage
8 Longitudinal head (Cue,
TC and Control track)
9 Full track erase head
10
Tape g,ulde
11
Deck fastening screws
12 Hermetically sealed plexi-glass cover fixations
MAIN CONTROL PANEL
This section describes the operation of all the elements of the main control panel of the machine.
(please refer to photograph)
Pos Description
1. HEADPHONE SELECTION SWITCHES
. The 4 headphone selection switches function
in conjunction with the mode selector
switch 2
and the direct switch 3. There are four switches (each corresponding to one
channel) each having three positions. These positions are SOLO I ON I OFF. The
SOLO position is a snap switch and must
be held in the SOLO position. When held
in the SOLO position the signal from the selected channel is centred on the
headphone outputs, and the other channels are inhibited while the switch is held
there. The four
(1, 2, 3, 4) headphone switches are also labelled L, R, L, R
respectively. This means that
if selector 1 is ON then the Signal will be fed to the left
channel of the headphone outputs. If selector 2 is ON then it will
be fed to the right
channel and so
on. Thus having stereo monitoring between two channels is possible
between the following combinations: 1
+2, 1+4, 2+3 and 3+4. The combination of 1+3
is not possible
as they would both be on the same channel superimposed. If the 96
kHz option is activated
and the higher sampling rates are used then only selectors 1
and 3 are activated for left and right channels respectively and naturally the
monitoring in the headphones is only at 48 kHz not 96 kHz due to the internal D/A
converte~. .
2. HEADPHONE MODE SELECTOR
This three position switch selects the mode of the headphone outputs. The three
positions correspond to MONO I STEREO I CUE.
In the MONO or STEREO
positions the audio signals are monitored in the respective format.
In the CUE
position the headphone outputs monitor the longitudinal CUE track (see CUE
TRACK). Whenever the machine is not
at nominal speed then the headphone output
is automatically switched
to the CUE track, if the EE I AUTO I TAPE switch is not in
the EE position.
in which case it will not be switched.
Chapter 2 2

21
23 22 24 2526
27 6 28 1 2 3 4 5
10
19
6 -----u--r-
•
ColI. Arc ()I{fALO AD
~
CHANNELl CHANNEL 2
"-"' ~ ..4
CH1
•• •1:.0
=W
1 i' 1::; ...
2 3 4
• • • •
....,
0
CAL
OY£A ID AO
~ ~ ~ ~
'>- •. : . ~ L >- '!.
CHANNEL 3 CHANNEL 4
CH2
7
I. ~
18
17
II ~ :
15 14 13 12
11
10