Panasonic AG5700 - SVHS User manual

Video Cassette Recorder
Operating Instructions Panasonic SWVUS/ irri
AG-57003
Panasonic

SPECIFICATIONS
ITEM SPECIFICATION | orem |
Power
Television Format
Tape Speed
Tape Format
Recording
Playback Time
FF/REW Time
Video
Source: AC 220 V~240 V, 50~60 Hz
Consumption: Approx. 26 W
CCIR Standard (625 lines, 50 fields)
23.39 mm/s
VHS tape, S- VHS tape
180 min. with NV-E180
Approx. 3 min. with NV-T120
Head: 2 rotary heads, helical scanning system
Luminance: FM azimuth recording
Colour signal: Comverted subcarrier phase shift
recording
Input Level: VIDEO IN (BNC); 1.0 Vp-p
75Q unbalanced
S-VIDEO (4P); Y: 1.0 Vp-p,
75Q, unbalanced
C: 0.3 Vp-p,
75Q unbalanced -
(burst level)
Output level: VIDEO IN (BNC); 1.0 Vp-p
75Q, unbalanced
S-VIDEO (4P); Y: 1.0 Vp-p,
750, unbalanced
C: 0.3 Vp-p,
750. unbalanced
(burst level)
Signal-to-Noise Ratio: 45 dB (B/W, colour)
Horizontal Resolution: VHS; 240 lines (B/W, color)
S-VHS,; 400 lines
(b/w, color)
Audio
Remote
Operating
Condition
Dimensions
SPECIFICATION
Head: Normal Audio/Control; 1 stationary head
Hi-Fi Audio; 2 rotary heads
Erase; 1 full track erase
1 Audio track erase
Track: Hi-Fi; 2 ch Normal; 1 ch
Input Level: AUDIO IN (PHONO); —8 dBv,
47 kD
unbalanced
MIC IN (Mini Jack); —60 dB, 6000
fe
Output Level: AUDIO OUTPUT (PHONO);
—8 dBv, 1 kOQ unbalanced
HEADPHONE (M3), 80
Frequency response: Normal; 80 Hz~10 kHz
Hi-Fi; 20 Hz~20 kHz
Hi-Fi Dynamic Range: 90 dB
Signal-to-Noise Ratio: 45 dB (Normal)
Mini Jack (FRONT), RS:235C (REAR)
Temperature: 41°F~104°F (5°C~40°C)
Humidity: 35%~80%
10-54" (W) x4-o" (H) x 13-io” (D)
270 mm (W)X 120 mm (H) x340 mm (D)
Approx. 12.5 tbs 5.7 kg
Standard S-VIDEO Cable (4P)
Accessory
Optional
Accessory
Remote Controller, AG-A!1
Specifications are subject to change without notice.
Weight and dimensions shown are approximate.
INTRODUCTION
This Service Manual contains all the technical information which allows service personnels to
understand and service the Panasonic S-VHS Video Cassette Recorder model AG-5700. The AG-5700 has
many special Features as described later.

CONTENTS
OPERATING INSTRUCTIONS AND
SERVICE INFORMATIONS
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SAFETY PRECAUTIONS
GENERAL GUIDELINES
1.
When
servicing,
observe
the
origina!
lead
dress.
If
a
short
circuit
is
found,
replace
all
parts
which
have
been
overheated
or
damaged
by
the
short
circuit.
2.
After
servicing,
see
to
it
that
all
the
protective
devices
such
as
insulation
barriers,
insulation
papers
shields
are
properly
installed.
3.
After
servicing,
make
the
following
leakage
current
checks
to
prevent
the
customer
from
being
exposed
to
shock
hazards.
LEAKAGE CURRENT COLD CHECK
1. Unplug the AC cord and connect a jumper between the
two prongs on the plug.
2. Measure the resistance value, with an ohm meter, be-
tween the jumpered AC plug and each exposed metallic
cabinet part on the equipment such as screwheads con-
nectors, control shafts,etc. When the exposed metallic
part has a return path to the chassis, the reading should
be between 1M ohm and 5.2 M ohm.
When the exposed meta! does not have a return path to
the chassis, the reading must be ©o.
LEAKAGE CURRENT HOT CHECK
ee Figure 1)
1. Plug the AC cord directly Into the AC outlet. Do not use
an \solation transformer for this check.
2. Connect a 1.5k ohm, 10 watts resistor, in parallel with a
0.15uF capacitor, between each exposed metallic part
on the set and a good earth ground such as a water pipe,
as shown in Figure 1.
3. Use an AC voltmeter, with 1000 ohms/voit or more sen-
Sitivity, to measure the potential across the resistor.
4. Check each exposed metallic part, and measure the
voltage at each point.
5. Reverse the AC plug in the AC outlet repeat each of the
above measurements.
6. The potential at any point should not exceed 0.75 volts
RMS. A leakage current tester (Simpson Model 229
equivalent) may be used to make the hot checks, leak-
age Current must not exceed 1/2 milliamp. In case a
measurement is outside of the limits specified, there is a
possibility of a shock hazard, and the equipment should
be
repaired
and
rechecked
before
it
is
returned
to
the
customer.
AC VOLTMETER
Hot-Check Circuit
TO
APPLIANCES { COLD
EXPOSED WATER PIPE
METAL PARTS 15002 10W
Figure 1
(EARTH GROUND)
ELECTROSTATICALLY
SENSITIVE (ES) DEVICES
Some semiconductor (solid state) devices can be dam-
aged
easily
by
static
electricity.
Such
components
com-
monly are called Electrostatically Sensitive (ES) Devices.
Examples of typical ES devices are integrated circuits and
some field-effect transistors and semiconductor chip
components. The following techniques should be used to
help reduce the incidence of component damage caused
by static electricity.
1.
Immediately before handling any semiconductor com-
ponent or semiconductor-equipped assembly, drain off
any electrostatic charge on your body by touching a
known earth ground.
Alternatively, obtain and wear a commercialy available
discharging wrist strap device, which should be re-
moved for potential shock reasons prior tio applying
power to the unit under test.
. After ramoving an electrical assembly equipped with ES
devices, place the assembly on a conductive surface
such as aluminum foil, to prevent electrostatic charge
buildup or exposure of the assembly.
. Use only a grounded-tip soldering iron to solder or un-
solder ES devices.
. Use only an anti-static solder removal device classified
as anti-static can generate electrical charges sufficient
to damage ES devices.
. Do not use freon-propelled chemicals. These can gener-
ate electrical charges sufficient to damage ES devices.
. Do not remove a replacement ES device from .its protec-
tive package untilimmediately before you aie ready to
install it. (Most replacementES devices are packaged
with leads eletcrically shorted together by conductive
foam, aluminum foil or comparable conductive mate-
rial).
. Immediately before removing the protective material
from the leads of replacement ES device, touch the
protective material to the chassis or circuit assembly into
which the device will be installed.
CAUTION : Be sure no power is applied to the chassis or
circuit, and observe all otner asfety precautons.
. Minimize bodily motions when handling unpackaged
replacement ES devices. (Otherwise harmbss motion
such as the brushing together of your cloths fabric or
the
lifting
of
your
foot
from
a
carpeted
floor
cam
generate
Static electricity sufficient to damage an ES clevice).

OPERATING
INSTRUCTIONS
SERVICE
INFORMATIONS
CONTENTS
OPERATING INSTRUCTIONS
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1-5 VISS (VHS INDEX SEARCH SYSTEM) ....................200 020 0e 1-6
1-6 REMOTE CONTROLLER & RS-232C METHOD .................0.. 1-7
1-7 SERVICE INFORMATIONS ............ 0.000. 1-18

OPERATING INSTRUCTIONS
1-1 Features
Recording and playback up to 3 hours
Using a 1/2" inch VHS or S-VHS cassette tape, you can
record or playback in 3-hour mode.
Recording and playback in the S-VHS mode
With this unit, it is available to playback and record
S-VHS cassette tape.
Illuminated buttons
The REC, PLAY and STOP buttons will light up when
pressed.
Hi-Fi audio
Compact and light weight
Remote controlling by a computer
Connecting this unit to a computer via an RS-232C
cable will allow remote control from the computer.
Sensor recording
This unit is equipped with the “SENSOR REC” function.
When a video signal transmitted from a satellite is input-
ted, the unit will turn ON automatically and set to the
recording mode.
Speedy Mechanism
The following operations start instantly after the cor-
responding buttons are pressed.
e Playback operation
e FF/REW operations
e Switching from search forward playback to search
reverse playback, and vice versa.
Repeat playback
Repeat playback can be performed from tape beginning
to its end or from tape beginning to interruption of the
video signal.
Search playback
Locating any desired scene or position on the tape is
made easy and fast by watching the tape being played
back at about 7 times normal speed in forward or
reverse direction.
High speed VISS (VHS Index Search System)
Automatic Search
During playback, if a VISS signal has been recorded at
the beginning of an event, the scene can be searched
and then played back automatically.
Ciear picture in still and slow-motion modes
Audio dubbing
Audio dubbing can be performed onto the normal audio
of the prerecorded tape.
Video Insert
Video insert (including FM audio insert) is available by
the contro! signals from the RS-232C remote control
connector.
Cassette tape insertion/ejection in power OFF
mode
Cassette tape insertion and ejection can be performed
even when the power has been turned OFF.
Auto power ON
Power is turned ON automatically when the cassette
tape is inserted in the unit.
Remote operation
Using an optional remote controller AG-A11, you can
operate the unit about 5 meters away from the unit.

Controls
Front
Memory/Search Button
12 13 14 15
VTR Switch
Eject Button
*! Standby Lamp lights up when VTR Switch is OFF.
Reset Button 9 Audio Monitor Output Selector
Hi-Fi Audio CH1/CH2 Level Controls 10 | Counter/Audio Level Meters
Cassette Holder W Tracking Buttons
Operation Buttons 12 Remote Jack (Mini-Jack)
5 STOP, PLAY, REC, REW, FF, PAUSE, :
STILUSLOW, AUDIO DUB 13 | Microphone Jack
Standby Lamp*' 14 Headphone Jack (Mini-Jack)
Headphone Levei Controi
Rear
161718 192021
Auto Repeat Switch
Audio. U/CH1 OUT Connector (PHONO)
Sensor Recording Switch
25 Audio R/CH2 OUT Connector (PHONO)
Mode Lock Switch
VIDEO IN Connector (BNC)
VIDEO OUT Connector (BNC)
26 S-VHS Selector
27 Video Selector
28 RS-232C Remote Control Connector
S-VIDEO IN Connector
Audio L/CH1 IN Connector (PHONO)
Audio R/CH2 IN Connector (PHONO)
S-VIDEO OUT Connector
Power Cord
S|OIJUOD ?-1

Recording
Vedeo Careane Recoraer ac MAMET
Audio Monitoring
When using head-
Phones, you can
adjust the volume
using this control.
aes
To reduce the
audio level, move
the control to the
left, and vice versa.
stanoer
a
Video signal
Audio signals
Audio Signals are
recorded as described
Hi-Fi Normal
on the table.
<7 *t: Audio L/CH1 is
UCHT x UcHi recorded on both
RICH2 RICH2" RICH2 UCH1 and R/CH2
UCH1 Stereo Mixed Audio | °2: Audio R/CH2 is
«Use headphones.
(mini plug)
elt you use high
tmpedance head-
phones, the audio
level may change
Microphone
{audio recorded as Hi-Fi
audio and normal audio)
Note:
\f connections are made both to
aoa nemeneremeeeeneee ee ree
&
(UCHI
&
{UCH1
&
recorded
on
both
the
MIC
and
audio
jacks,
the
RICH2
R/CH2)
RiCH2)
UCHI
ana
R/CH2
microphone
takes
precedence.
Preparations
Operation
eLoad the pre-recorded cassette tape. (Check that the
tab on the cassette to prevent accidental erasure is
still intact.) The STOP Button and the cassette IN
indicator “ "(in the counter) will light up:
Set the S-VHS Selector and the Video Selector on the
rear panel to the desired position.
Audio Level Adjustment (Hi-Fi sound only)
The audio level can be adjusted only for Hi-Fi audio.
Adjust the Hi-Fi Audio Level Controls sa that the audio
fevel meter indication is set to around 2 (so that the 2
level is not exceeded).
L/CH1~Hi-Fi—R/CH2
Hi-Fi Audio HI-HiEIR/
TRACKING
a vr
ee
Recording starts when the REC and PLAY Buttons are
pressed together.
°A cassette tape without its accidental erasure preven-
tion tab will be ejected. Use a tape with its tab intact.
When the PAUSE Button is used, the sequence of
operation is as follows.
@ Play back the tape and find the location which is to
be recorded. Then press the PAUSE Button. The
PAUSE indicator will appear on the tape counter and
VTR is set to the playback pause mode.
Press the REC and PLAY Buttons together. The
REC Lamp now comes on and the VTR is set to
the recording pause mode.
© When the PAUSE Button is pressed again, the VTR
is released from the pause mode and recording
begins.
Stopping Recording
Press the STOP Button.
Playback
a
a
Preparations
ePress the VTR Switch to ON
*Be sure that the Mode Lock Switch is OFF.
Be sure that the Auto Repeat Switch is OFF.
elnsert a recorded tape.
The STOP Button and the cassette IN indicator « &“
{in the counter) will light up.
eTurn TV ON.
Audio Monitor Output Selector
Set the Audio Monitor Output Selector to the desired
position.
When this unit is turned ON, the Hi-Fi mode is automat-
ically selected. Each time you press the Audio Monitor
Output Selector, the audio output mode will change as
follows:
Hi-Fi + L CH -» R CH — No indication(Linear)
Hi-Fi Audio
“anon RESET
a
Mode Lock Switch
This
switch
makes
it
impossible
to
operate
the
switches
on
the
front
panel.
When
it
is
set
to
ON,
all
the
switches
on
the
front
panel
do
not
function.
However,
operation
is
available
using
the
wired
remote
controller
or
the
RS-232C
remote
contro!
signal
even
if
the
Mode
Lock
Switch
is
set
to
ON.
This unit cannot be recorded or played back In LP mode.
Therefore, be sure not to playback tapes recorded in LP
mode.
Normal Playback
Press the Play Button. Play Lamp lights and playback
will start.
As this unit is equipped with the digital automatic track-
ing function, normally adjustment is unnecessary. If noise
partially appears in the ptayback picture as shown below,
press the Tracking “+” and "—" Buttons simultaneously
to reduce the noise.
= +
ma oO
TRACKING
Precautions
If you leave this unit near a monitor television, inter-
ference from the monitor tetevision may cause noise to
get into the audio circuit. Be sure, therefore, to keep the
unit a suitable distance (at least 20 cm) away from a
monitor television.
eee
Double-speed Playback
—
Press the PLAY Button during normal playback. The
playback picture can be viewed at about twice normal
playback speed. To return to normal playback, press the
PLAY Button.
ee
Stow Motion Playback
———
Press the SLOW Button during playback. The playback
picture can be viewed at a lower speed. Each time you
press the STILL/SLOW button, the unit will run at one
of the slow motion speeds shown below. To return ‘to
normal playback, press the PLAY Button.
Normal Speed— Still 1/30-—+ 1/20~+ 1/10—+ 1/7» 1/5
t
elf slow motion playback continues for over 5 minutes,
the unit will go into the stop mode automatically.
*No sound is heard during slow motion playback.
yoeqAe|g pue Hulpiooey ¢-}

i
———S—
Rewind and Fast Forward the tape
ee eB ne
When the unit is in stop mode:
Press the Rewind (REW) Button to rewind the tape.
Press the Fast Forward (FF) Button to move the tape
forward rapidly.
rr
Search Playback
Pa Dees Pe Sh eee
When the FF Button is held down while the unit is in
the playback, slow motion playback or still, the tape
will be played back in the forward direction at about 7
times normal speed.
When the Rewind Button is held down while the unit
is in the playback, slow motion playback or still, the
tape will be played back in the reverse direction at
about 7 times normal speed.
When the Memory/Search Button is pressed and “S"
display appears in the counter, search forward or
reverse playback can be obtained without keeping the
FF or REW Button depressed.
To release the Search Forward/Reverse manually, see
page 10, section “Search”.
elf this function is maintained for more than 10 minutes,
the unit automatically returns to the previous mode.
No sound is heard during SEARCH mode.
*Colour programme may be played back in Black and
White or playback image may be dark during SEARCH
mode, but this is not a malfunction.
*A skew may occur on the picture during SEARCH
mode, but this is not a malfunction.
eWhen the picture rolls vertically in the SEARCH mode,
adjust the vertical hold contro! on the TV set.
vn LUE EEEEEEET
Still Playback
aa SE me Se
Press the Pause Button during normal playback or
during slow motion playback. Press the Pause Button
once again to resume normal playback.
elf noise appears during still playback, set for slow
motion mode and adjust with the Tracking Buttons
(either “+" or "=") to minimize the bands of noise as
shown below, then press the Pause Button.
wr
a eerie
s mom oO
= TRACKING
elf still playback continues for more than 5 minutes, the
unit will go into the stop mode automatically.
*A distortion may occur on the picture during STILL
mode, but this is not a malfunction.
*No sound is heard during STILL mode.
*Colour programme may be played back in Black and
White or playback image may be dark during STILL
mode, but this is not a malfunction.
After Finishing Playback
Press the Stop Button to stop the playback.
Counter
Memory/Search
Button
When the
Memory/Search
Button is
pressed, display
will be changed.
Memory/Search Button
OFF
(Memory
Stop
Display)
{Search
Display)
* Search Display is indicated only when
the cassette tape is inserted.
|
Memory Stop
When the Memory/Search Button is pressed and the “M"
display lights on the counter, the tape can be stopped
near counter digit “0000” during FF or REW modes.
GayREW FF/GS)
oF
* Press until “M" Press Press
will appear.
5
Auto Stop near
counter digit
“0000"
Counter Reset
If you press the reset button when "S" is not displayed,
the counter indication wil! become “00000”.
Search
When the Memory/Search Button is pressed until the “S"
display lights on the counter display, and the FF or REW
button is pressed during normal playback or still
playback, search forward or reverse playback can be
held for about 10 minutes. Thereafter, the unit will auto-
matically return to the previous mode.
ES:
suse:
EA
Ga/REW
FF/RS
#17
.,
128888
[<<]
be
segout
PP
merreryy
—i
ot
—
Or
Press
until
“S”
Press
Press
will
appear.
REW
or
FF
mode
for
about
10
min.
eTo release the Search Forward/Reverse manually,
proceed as follows:
@ Press the Piay Button. The unit will go into the
following mode.’
Previous Mode Subsequent Mode
Still Playback —7* Still Playback
Normal Playback —{-Normal Playback
@ Press the Memory/Search Button to clear the “S”
display. The unit will go into the previous mode.
© Press the Stop Button. The unit will go into the stop
mode.
4aJUNOD P-L

—
a
——_-—_—
ee
ss
Intro Search
me
Press the Memory/Search Button and display the "S”
indication in the counter display. When a ViISS signal is
found during FF operation, the tape is played back for
about 10 seconds. Each time a VISS signa! is found
during FF operation, this function will repeat. Press the
Piay Button twice when desired scene is found. (if Play
Button is pressed only once, the tape will playback in
double-speed.)
Repeat Playback
Repeat playback between tape beg. and tape end
If it is desired to play back the tape repeatedly from
tape beginning to tape end, proceed as follows:
@ Set the Auto Repeat Switch to the “TAPE END"
position.
@ Press the Play Button.
AUTO:
Tae ENO PLAY x2
Tt ®
WED END Press PLAY
Set the Auto Repeat
Switch to “TAPE ENO”.
Tape
End
Beg.
be—— Repeat Playback ——+4
PLAY
Repeat playback between tape beg. and video end
lf it
is
desired
to
play
back
the
tape
repeatedly
from
tape
beginning
to
interruption
of
the
video
signal,
first
make
sure
that
video
recording
on
the
tape
is
interrupted
for
at
least
3
seconds
(see
diagram).
@ Set the Auto Repeat Switch to the “VIDEO END"
position.
@ Press the Play Button.
AUTO.
REPEAT
af NO
oT ®
‘VIDEO END
Set the Auto Repeat
Switch to “VIDEO
END”.
PLAY x2
Press PLAY
Tape Video
Beg. END
Repeat Playback ———_.~——
>»
Control signal
PLAY interruption (at least 3 sec.)
REW *If the Control signal interrup-
tion time is shorter than
above times, PLAY mode can
be continued.
Notes:
elf
short
repeat
playback
is
continued
many
times,
the
fepeated section of tape may be damaged.
*NV-E240
type
cassettes
are
not
recommended
for
Repeat
Playback
use.
VISS
(VHS
Index
Search
System)
VISS
signal
is
recorded
at
the
beginning
of
each
recording.
Every
time
the
recording
starts,
VISS
signal
is
recorded
automatically
at
the
beginning
{including
external
timer
recording).
Moreover,
VISS
signal
can
be
recorded
manually
by
pressing
the
Record
and
Play
Buttons
simultaneously
during
recording.
When
the
VISS
signal
is
recorded
at
the
beginning
of each
recording,
it
is
available
to select
a
desired
scene
easily.
@ Press the FF or REW Button.
eThe index number will increase one by one each
time a VISS signal is found.
«Playback starts automatically when the number be-
comes to zero.
eThe fast forward or rewinding speed is a little
slower comparing to the normal FF/REW speed.
@ Press the Memory/Search Button and light the "S"
indication.
Hi-Fi Audio
Ga/REW FF ee
Press
the
Reset
Button
to
set
to
VISS
mode.
Each
[<<]
(p>
]
time the button is pressed, index number 01 to 20
can be selected.
Hi-Fi Audio
Sensor Recording
(wayskg youeas xepul SHA) SSIA S-L
Sensor Recording System
@® When the unit receives a video signal, the power is
automatically turned ON and the recording starts.
The recording stops at the tape end or when there
is no more video input signal, and the unit is turned
OFF again.
Operate the unit by following the procedure below to
record the video signal transmitted from a satellite.
@ Set the Sensor Recording Switch to “ON”.
SENSOR
REC
ON
Bt
OFF
The indication “SENSOR” will appear in the counter
and the unit is set to the recording stand-by mode
after the unit is automatically turned OFF.
Mewony Hi-Fi Audio
Ss
AUDIO OUT}
T
Note:
The indication “SENSOR” will flash when no tape
is inserted or tape with broken removable tab is
inserted.