Read Panasonic WR-X22NL / WR-X22NH Service Manual online
ORDER NO. AVS0203431C3
C
2 0 0 2 M a t s u s h i t a C o m m u n i c a t i o n I n d u s t r i a l C o . , L t d .
A l l r i g h t s r e s e r v e d . U n a u t h o r i z e d c o p y i n g a n d
d i s t r i b u t i o n i s a v i o l a t i o n o f l a w .
d i s t r i b u t i o n i s a v i o l a t i o n o f l a w .
Audio Mixer
WR-X22NL/WR-X22NH
10
8
6
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SPECIFICATIONS
●
Basic Specifications
Power supply
110 V - 120 V AC 60Hz (NL), 220 V - 240 V AC 50 Hz (NH)
Power consumption
35 W
Temperature range
0°C - 45°C
Dimensions
480 (W) mm x 221 (H) mm x 149 (D) mm (at shipping, excluding projections such as a knob)
Weight
Approx. 7.5 kg
Frequency response
20 Hz to 20 kHz +0.5 dB/–1.0 dB (stereo input)
20 Hz to 20 kHz +0.5 dB/–2.5 dB (mono input, when built-in HPF is OFF)
20 Hz to 20 kHz +0.5 dB/–2.5 dB (mono input, when built-in HPF is OFF)
High-pass filter
70 Hz (included in mono inputs)
Total harmonic distortion
0.1 % or less (at mono input)
Input conversion noise
–125 dB or less (source impedance 150
Ω
or less, audio band 22 Hz - 22 kHz)
Residual noise
–90 dB or less (A status in which every knob of the volumes and fader levels is turned down as
much as possible, audio band 22 Hz to 22 kHz)
much as possible, audio band 22 Hz to 22 kHz)
Maximum input
+20 dB or more (stereo input)
+10 dB or more (mono input, when microphone is selected)
+10 dB or more (mono input, when microphone is selected)
Maximum output
+24 dB or more (main output, sub output)
Crosstalk
–70 dB or less, 1 kHz (between adjacent channels)
Common mode rejection ratio
60 dB or more, 1 kHz (mono input, at –60 dB of sensitivity)
Maximum voltage gain
30 dB ± 3 dB (stereo input)
80 dB ± 3 dB, 1 kHz (mono input, when microphone is selected)
60 dB ± 3 dB, 1 kHz (mono input, when line is selected)
80 dB ± 3 dB, 1 kHz (mono input, when microphone is selected)
60 dB ± 3 dB, 1 kHz (mono input, when line is selected)
This service information is designed for experienced repair technicians only and is not designed for use by the
general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to
service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any
attempt to service or repair the product or products dealt with in this service information by anyone else could
result in serious injury or death.
general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to
service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any
attempt to service or repair the product or products dealt with in this service information by anyone else could
result in serious injury or death.
Y
WARNING
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION:
TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK). NO USER
SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE
PERSONNEL.
TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK). NO USER
SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE
PERSONNEL.
This symbol warns the user that uninsulated voltage within
the unit may have sufficient magnitude to cause electric
shock. Therefore, it is dangerous to make any kind of contact
with any inside part of this unit.
the unit may have sufficient magnitude to cause electric
shock. Therefore, it is dangerous to make any kind of contact
with any inside part of this unit.
This symbol alerts the user that impotant literature concerning
the operation and maintenance of this has been included.
Therefore, it should be read carefully in order to avoid
any problems.
the operation and maintenance of this has been included.
Therefore, it should be read carefully in order to avoid
any problems.
T
here are special components used in this equipment which are important for safety. These parts are indicated
by the " " mark on the schematic diagram and the replacement parts list. It is essential that these critical
parts should be replaced with manufacturer's specified parts to prevent x-radiation, shock, fire, or other hazards.
Do not modify the original design without permission of manufacture.
IMPORTANT SAFETY NOTICE
●
Input Circuit
Mono inputs 1 to 6
6 circuits, XLR (balanced), 10 k
Ω
Microphone: –60 dB to –20 dB
Line: –30 dB to +10 dB
Line: –30 dB to +10 dB
Mono inputs 7 and 8
–60 dB to -20 dB, 10 k
Ω
, electronically balanced 2 circuits, XLR (balanced),
phantom power supply integrated (including ON/OFF switch)
Stereo inputs 1 to 4
+10/0/–10 dB, 10 k
Ω
, unbalanced four channels, stereo input (L/R), pin
Return input
+4 dB, 10 k
Ω
, unbalanced, mono input, one channel, TS phone
Sub input
+4 dB, 10 k
Ω
, unbalanced, mono input, one channel, TS phone
●
Output Circuit
Main output
+4 dB, 600
Ω
, electronically balanced, stereo output (L/R), 2 circuits, XLR
Sub output
+4 dB, 600
Ω
, electronically balanced, mono output (L/R), 2 circuits, XLR
Sending output
+4 dB, 10 k
Ω
, unbalanced, mono output, one channel, TS phone
Recording output
–10 dB, 10 k
Ω
, unbalanced, stereo output, one channel, pin
●
Control Input/Output Circuit
Pattern control input
Make contact input, 8 channels, D-SUB 15-pin, backflow prevention diode included
Pattern control output
Make contact output, 8 channels, D-SUB 15-pin, photocoupler open collector output
Power control output
Make contact output, 1 channel, nylon connector 6-pin, for power control unit
connection
connection
Pattern control
8 patterns
STANDARD ACCESSORIES
Acrylic cover for prevention of operating error .......................... 1
Remote connector .................................................................... 1
Crimping pin for remote connector ........................................... 6
Rack mounting screw (M5 x 12) ............................................... 4
Remote connector .................................................................... 1
Crimping pin for remote connector ........................................... 6
Rack mounting screw (M5 x 12) ............................................... 4
CONTENTS
MAJOR OPERATING CONTROLS AND THEIR FUNCTIONS............................................................. 1
ADJUSTMENT PROCEDURE ............................................................................................................... 5
LOCATION OF TEST POINTS AND ADJUSTING CONTROLS........................................................... 7
WIRING DIAGRAM ................................................................................................................................ 8
BLOCK DIAGRAM
(1/6) ................................................................................................................................................... 9
(2/6) ................................................................................................................................................. 10
(3/6) ................................................................................................................................................. 11
(4/6) ................................................................................................................................................. 12
(5/6) ................................................................................................................................................. 13
(6/6) ................................................................................................................................................. 14
PARTITION DIAGRAM FOR SCHEMATIC DIAGRAM OF CANNON CONNECTOR A BOARD/
AUDIO BOARD/JACK BOARD ............................................................................................................15
PARTITION DIAGRAM FOR SCHEMATIC DIAGRAM OF CONTROL BOARD/VR BOARD/
POWER LED BOARD...........................................................................................................................26
SCHEMATIC DIAGRAM
CANNON CONNECTOR A BOARD/AUDIO BOARD/JACK BOARD (1/6) ...................................... 16
CANNON CONNECTOR A BOARD/AUDIO BOARD/JACK BOARD (2/6) ...................................... 17
CANNON CONNECTOR A BOARD/AUDIO BOARD/JACK BOARD (3/6) ...................................... 18
CANNON CONNECTOR A BOARD/AUDIO BOARD/JACK BOARD (4/6) ...................................... 19
CANNON CONNECTOR A BOARD/AUDIO BOARD/JACK BOARD (5/6) ...................................... 20
CANNON CONNECTOR A BOARD/AUDIO BOARD/JACK BOARD (6/6) ...................................... 21
CONTROL BOARD/VR BOARD/POWER LED BOARD (1/8).......................................................... 27
CONTROL BOARD/VR BOARD/POWER LED BOARD (2/8).......................................................... 28
CONTROL BOARD/VR BOARD/POWER LED BOARD (3/8).......................................................... 29
CONTROL BOARD/VR BOARD/POWER LED BOARD (4/8).......................................................... 30
CONTROL BOARD/VR BOARD/POWER LED BOARD (5/8).......................................................... 31
CONTROL BOARD/VR BOARD/POWER LED BOARD (6/8).......................................................... 32
CONTROL BOARD/VR BOARD/POWER LED BOARD (7/8).......................................................... 33
CONTROL BOARD/VR BOARD/POWER LED BOARD (8/8).......................................................... 34
CANNON CONNECTOR B BOARD/POWER BOARD/POWER SWITCH BOARD..........................37
PATTERN SELECTOR BOARD........................................................................................................40
CONDUCTOR VIEW
CANNON CONNECTOR A BOARD................................................................................................. 22
AUDIO BOARD (COMPONENT SIDE) .............................................................................................23
AUDIO BOARD (PATTERN SIDE) ....................................................................................................24
JACK BOARD................................................................................................................................... 25
CONTROL BOARD/VR BOARD/POWER LED BOARD (COMPONENT SIDE) ...............................35
CONTROL BOARD/POWER LED BOARD (PATTERN SIDE) .........................................................36
CANNON CONNECTOR B BOARD/POWER SWITCH BOARD ..................................................... 38
POWER BOARD .............................................................................................................................. 39
PATTERN SELECTOR BOARD....................................................................................................... 40
EXPLODED VIEW ................................................................................................................................41
REPLACEMENT PARTS LIST ........................................................................................................... 42
– 1 –
MAJOR OPERATING CONTROLS AND THEIR FUNCTIONS
●
Mono Inputs 1 to 6
q
Level Switches [INPUT MIC/LINE]
Toggles between MIC and LINE in accordance with
input signal level. Set this switch to MIC when connect-
ing to a microphone, and set this switch to LINE when
connecting to other devices.
input signal level. Set this switch to MIC when connect-
ing to a microphone, and set this switch to LINE when
connecting to other devices.
Caution:
Turn the trim adjuster w counterclockwise to the end
when toggling the level switch. Sudden increase in the
sound volume may cause damage to speakers.
when toggling the level switch. Sudden increase in the
sound volume may cause damage to speakers.
w
Trim Adjusters [INPUT 0 to 10]
Changes the input sensitivity stepwise.
MIC selected:
–20 dB to –60 dB
LINE selected:
+10 dB to –30 dB
Adjust the sensitivity so that optimal volume is gained
when the input fader i stands at 8.
when the input fader i stands at 8.
e
Equalizer Knobs [HIGH, LOW]
2-stage (HIGH and LOW) equalizer
HIGH:
Adjusts the quality of high tone.
Mainly clarity of human voice (audibility) can be
adjusted by the peaking type of 4 kHz ±6 dB. The
more clockwise the knob is turned, the clearer the
sound becomes.
adjusted by the peaking type of 4 kHz ±6 dB. The
more clockwise the knob is turned, the clearer the
sound becomes.
LOW:
Adjusts the quality of low tone. Shelving type 100
Hz ±15 dB
r
Assign Switches [MAIN 1, MAIN 2, SUB 1, SUB 2]
Selects a bus line from among 4 channels for signal
transmission. Press one of the switches to select a bus
line and the integral green light comes on. Press the
switch again to stop transmission and the light comes
off. The combination of switch setting is called "pattern",
and up to 8 patterns can be registered.
transmission. Press one of the switches to select a bus
line and the integral green light comes on. Press the
switch again to stop transmission and the light comes
off. The combination of switch setting is called "pattern",
and up to 8 patterns can be registered.
t
Sending Switches [SEND]
Toggles transmission to an external device such as an
echo machine on and off. Press this switch to echo an
microphone. (The unit has no echo function.)
echo machine on and off. Press this switch to echo an
microphone. (The unit has no echo function.)
4
6
2
8
0
10
INPUT
MIC
LINE
−
6
+
6
HIGH
−
15
+
15
LOW
MAIN 1 MAIN 2
SUB 1
SUB 2
4
6
2
8
0
10
INPUT
MIC
LINE
−
6
+
6
HIGH
−
15
+
15
LOW
MAIN 1 MAIN 2
SUB 1
SUB 2
4
6
2
8
0
10
INPUT
MIC
LINE
−
6
+
6
HIGH
−
15
+
15
LOW
MAIN 1 MAIN 2
SUB 1
SUB 2
4
6
2
8
0
10
INPUT
MIC
LINE
−
6
+
6
HIGH
−
15
+
15
LOW
MAIN 1 MAIN 2
SUB 1
SUB 2
4
6
2
8
0
10
INPUT
MIC
LINE
−
6
+
6
HIGH
−
15
+
15
LOW
MAIN 1 MAIN 2
SUB 1
SUB 2
4
6
2
8
0
10
INPUT
MIC
LINE
−
6
+
6
HIGH
−
15
+
15
LOW
MAIN 1 MAIN 2
SUB 1
SUB 2
4
6
2
8
0
10
INPUT
ON
OFF
−
6
+
6
HIGH
−
15
+
15
LOW
MAIN 1 MAIN 2
SUB 1
SUB 2
4
6
2
8
0
10
INPUT
ON
OFF
−
6
+
6
−
10
+
10
0
INPUT
SUB 1
HIGH
−
15
+
15
LOW
MAIN 1 MAIN 2
SUB 1
SUB 2
MAIN 1 MAIN 2
SUB 1
SUB 2
PHANTOM
PHANTOM
−
10
+
10
0
INPUT
MAIN 1 MAIN 2
SUB 1
SUB 2
−
10
+
10
0
INPUT
MAIN 1 MAIN 2
SUB 1
SUB 2
−
10
+
10
0
INPUT
MAIN 1 MAIN 2
SUB 1
SUB 2
MAIN 1 MAIN 2
SUB 1
SUB 2
MEMORY
PROTECT
OFF ON
SUB 2
0
MAIN 1
MAIN 2
0
0
SEND
SGNL/PEAK
SEND
SGNL/PEAK
SEND
SGNL/PEAK
SEND
SGNL/PEAK
SEND
SGNL/PEAK
SEND
SGNL/PEAK
SEND
SGNL/PEAK
SEND
SGNL/PEAK
SGNL/PEAK
SGNL/PEAK
SGNL/PEAK
SGNL/PEAK
10
8
6
4
2
0
10
8
6
4
2
0
10
8
6
4
2
0
10
8
6
4
2
0
10
8
6
4
2
0
10
8
6
4
2
0
10
8
6
4
2
0
10
8
6
4
2
0
10
8
6
4
2
0
10
8
6
4
2
0
10
8
6
4
2
0
10
8
6
4
2
0
10
8
6
4
2
0
10
8
6
4
2
0
10
8
6
4
2
0
MONO 1
MONO 2
MONO 3
MONO 4
MONO 5
MONO 6
MONO 7
MONO 8
ST 1
ST 2
ST 3
ST 4
1
5
2
6
3
7
4
8
MAIN OUT 2
MAIN OUT 1
SUB OUT 2
PATTERN SELECTOR
POWER
4
2
0
10
8
6
SUB OUT 1
4
2
0
10
8
6
4
2
1
0
10
6
RETURN
Mono inputs 1 to 6
Mono inputs 7 and 8
Meters, return and pattern selectors
Stereo inputs
Outputs
■
Front View
4
6
2
8
0
10
INPUT
MIC
LINE
−
6
+
6
HIGH
−
15
+
15
LOW
MAIN 1 MAIN 2
SUB 1
SUB 2
4
6
2
8
0
10
INPUT
MIC
LINE
−
6
+
6
HIGH
−
15
+
15
LOW
MAIN 1 MAIN 2
SUB 1
SUB 2
4
6
2
8
0
10
INPUT
MIC
LINE
−
6
+
6
HIGH
−
15
+
15
LOW
MAIN 1 MAIN 2
SUB 1
SUB 2
4
6
2
8
0
10
INPUT
MIC
LINE
−
6
+
6
HIGH
−
15
+
15
LOW
MAIN 1 MAIN 2
SUB 1
SUB 2
4
6
2
8
0
10
INPUT
MIC
LINE
−
6
+
6
HIGH
−
15
+
15
LOW
MAIN 1 MAIN 2
SUB 1
SUB 2
4
6
2
8
0
10
INPUT
MIC
LINE
−
6
+
6
HIGH
−
15
+
15
LOW
MAIN 1 MAIN 2
SUB 1
SUB 2
O
H
L
P
SEND
SGNL/PEAK
SEND
SGNL/PEAK
SEND
SGNL/PEAK
SEND
SGNL/PEAK
SEND
SGNL/PEAK
SEND
SGNL/PEAK
SE
10
8
6
4
2
0
10
8
6
4
2
0
10
8
6
4
2
0
10
8
6
4
2
0
10
8
6
4
2
0
10
8
6
4
2
0
10
8
6
4
2
0
MONO 1
MONO 2
MONO 3
MONO 4
MONO 5
MONO 6
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