Akai GX-265D Troubleshooting guide

SERVICE MANUAL
iL
PART
SUSTES
AKAI STEREO TAPE DECK
MODEL
CsM=e@65
|

STEREO TAPE DECK
mopEL GX-265D
SECTION 1 SERVICE MANUAL
SECTION 2 PARTS LIST. ...........

SECTION 1
SERVICE MANUAL
TABLE OF CONTENTS
L SPECIFICATIONS * i i5hsshatiscichsssctaceh hess acesstescttis sas caanes Meaveccaseesoibeves thensardanatech edetivcbiniadees eee
Il. DISMANTLING OF UNIT
III.
ARRANGEMENT
OF
PRINCIPAL
PARTS.
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7
IV.
MECHANISM
ADJUSTMENT.
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8
POSITION
ADJUSTMENT
OF
PINCH
WHEEL
SOLENOID
SL-3
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PINCH WHEEL POSITION ADJUSTMENT AT STOP MODE _ .uw..seccceseeeeesstseersseaeeeneenenerene
PINCH WHEEL PRESSURE ADJUSTMENT ...---sssssesssssssssessseersesesenesesesenees
POSITION ADJUSTMENT OF PLAY HOLD MICROSWITCH SW-11
SLIDE: ADJUSTMENT | corsscssnsscerccosstcconcosssnssosnsestsnosocssvesncneiesignaasasoovbsnsdcvessessedenst
POSITION ADJUSTMENT OF QUICK PLATE oesssscesssessesseeesseesseerecesseseneaereeseenesesesnesenerieansennes
POSITION ADJUSTMENT OF RECORDING MICROSWITCH SW-5
POSITION ADJUSTMENT OF BRAKE SOLENOID SL-2 oseseseessesesssestseeeeseessneessesereeeesenenenens
9,
POSITION
ADJUSTMENT
OF
BRAKE
SOLENOID
MICROSWITCH
SW-8
.......sseeeee
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11
10.
BRAKE
TENSION
ADJUSTMENT.
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11.
PAUSE
ADJUSTMENT
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12.
POSITION
ADJUSTMENT
OF
REVERSE
SOLENOID
SL-1
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13.
D
SWITCH
LEVER
ADJUSTMENT
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14.
INSTALLATION
POSITION
ADJUSTMENT
OF
REVERSE
JOINT
o..-sesssecseeeseseteteseneeenes
15,
INSTALLATION
POSITION
ADJUSTMENT
OF
HEAD
SWITCH
SW-3
16.
CAPSTAN
SHAFT LOOSE
PLAY
ADJUSTMENT
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17.
OPERATING
POSITION
ADJUSTMENT
OF
TENSION
MICROSWITCH
SW-14
18.
TAPE
GUIDE
HEIGHT
ADJUSTMENT.
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19.
REEL
TABLE
HEIGHT
ADJUSTMENT
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AMPLIFIER SYSTEM ADJUSTMENT .....-:::cccccccccccecceeeeescscncescessessscnensnnneeeneceneesecessesnaceecseseersceeacaserteseeeeses
1. DC POWER SUPPLY VOLTAGE ADJUSTMENT. -----s:sesesesee Sadan bedverddabaveieivvsrdl deevns seed
2. TAPE: SPEED ADJUSTMENT. cisicciestisicceccssscclesertiasacesadsnnsadnesenstedevencteeapescnancensoesendescnenasctnandecdetiedeedes
3. RECORDING AND PLAYBACK AMPLIFIER ADJUSTMENT .u.-s.ccesscccscesssesstetenntee se eeseeeenacenes
VII. DC RESISTANCE OF VARIOUS COILS ou.ccescccccssssessccssseseseesssesesecescenceescssedeseseseeeeeeaeseseseneraena ee sensnssenenss
VIIT. CLASSIFICATION OF VARIOUS P.C BOARDS oveseseeececeecssesesessseesereseneeneeesenseseseseseeseneaesnsg eee ciesenenenees
1. RELATION OF P.C BOARD TITLE AND NUMBER ...s...eeccecsccsssesssesteeeeeeteetecnseecssennses oe eeersnersnenes
2. COMPOSITION OF VARIOUS P.C BOARDS . 0... ce cceeceesececereeesseesesseecssessaersseecesaeesneneneeaessanesseaees
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<<
For basic adjustments, measuring methods, and operating principles, refer to GENERAL OPERATING PRINCIPLES
AND ADJUSTMENTS.
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1. SPECIFICATIONS
ee
ee
AEN
NESE
IRIINSONES
An
asterisk
next
to
a
figure
indicates
the
minimum
guaranteed
performance.
TRACK SYSTEM
TAPE SPEED
WOW AND FLUTER
TOTAL WOW AND FLUTTER
FREQUENCY RESPONSE
HARMONIC DISTORTION
TOTAL HARMONIC DISTORTION
4 track 2 channel stereo/monaural system
7-1/2 and 3-3/4 ips +0.7%
*7-1/2 ips (19 cm/sec) +0.8%
*3-3/4 ips (9.5 cm/sec) +1.0%
“Less than 0.06% WRMS at 7-1/2 ips
Less than 0.09% WRMS at 7-3/4 ips
*Less than 0.1% RMS at 7-1/2 ips (FWD/REV)
*Less than 0.15% RMS at 3-3/4 ips (FWD/REV)
*Less than 0.1% at 7-1/2 ips (FWD/REV)
*Less than 0.15% at 3-3/4 ips (FWD/REV)
30 to 25,000 Hz +3 dB at 7-1/2 ips
30 to 19,000 Hz +3 dB at 3-3/4 ips
(Using AKAI LN-150-7 tape)
*30 to 22,000 Hz +3 dB at 7-1/2 ips
*30 to 18,000 Hz +3 dB at 3-3/4 ips
Less than 0.5%
*Less than 1.0% at 7-1/2 ips
*Less than 2.0% at 3-3/4 ips
SIGNAL
TO
NOISE
RATIO
*Better
than
50
dB
TOTAL
SIGNAL
TO
NOISE
RATIO
*Better
than
47
dB
OUTPUT
LINE
*0.775V
(0
dBm
+1.0
dB/0
dBm
+1.5
dB,
FWD/REV)
DIN
0.5V
PHONE
30
mV/8
ohm
At playback of a 700 Hz “0” VU pre-recorded test tape.
(Output Volume at maximum)
INPUT
MIC
More
than
0.25
mV/5
k
ohm
LINE More than 70 mV/150k ohm
DIN More than 3 mV
At “0” VU output. (Recording Volume at, maximum)
RECORDING/PLA
YBACK
LEVEL
*0.775V
(0
dBm
+1.5
dB)
FWD/REV deviation: +1.5 dB
CROSS
TALK
Better
than
40
dB,
stereo
Better than 55 dB, monaural
ERASE
RATIO
Better
than
70
dB
BIAS FREQUENCY 103 kHz +5%
BIAS
LEAK
Better
than
~30
dB
HIGH
FREQUENCY
DEVIATION
Between
FWD
playback
channels:
within
3
dB
Between REV playback channels: within 4 dB
Between FWD and REV: within 3.5 dB
At
playback
of
an
8,000
Hz
3-3/4
ips
pre-recorded
test
tape
at
7-1/2
ips
RECORDING
TIME
90
min
stereo
recording
at
7-1/2
ips,
using
a
1,800
ft
tape
F.FWD
AND
RWD
TIME
Approximately
120
sec
at
50
Hz,
using
a
1,800
ft
tape
MOTOR
MAIN
MOTOR
2
speed
AC
servo
control
outer
rotor
motor
Type: SCM2-24KJ 4 pole
Revolutions: 615 rpm at 7-1/2 ips (19 cm/sec)
307.5 rpm at 3-3/4 ips (9.5 cm/sec)
REEL MOTOR Two 6 pole eddy current outer roter motors
Type: 24XO-MR
Revolutions: 930 rpm at 50 Hz
1,120 rpm at 60 Hz

rR
HEAD RECORDING/ERASE
COMBINATION HEAD
PLAYBACK HEAD
REVERSING TIME
TRANSISTOR
DIODE
POWER REQUIREMENTS AND
CONSUMPTION
DIMENSIONS
WEIGHT
Type: RE4-6
Gap: REC HEAD; 4 microns
ERASE HEAD; double gap
Impedance: REC HEAD; 1,400 ohm +25% at 100 kHz
ERASE HEAD; 130 ohm £7% at 100 kHz
DC Resistance: REC HEAD; 5.5 ohm
ERASE HEAD; 1.8 ohm
Type: P4-202
Gap: 1.7 +0.5 microns
Impedance: 1,400 ohm at 1 kHz
DC Resistance: 268 ohm
5 to 6 sec at 7-1/2 ips (muting interval)
2S8A564(Q)(R)... 1 28C1211(D)(E) ...
2SC458LG(C)... 14 2SD361(D1)(D2) ....
28C945 (P)(Q)(R) . .. 18 TIP48....1
2SC945L(Q)(R) .... 1
1N34A...2 182473VE... 6
1N4001... 4 10D2...4
1N4003....5 10D4...1
181588 ...1 RDSAM)...1
182473...1
100 to 240V AC 50/60 Hz, 90W (Universal models)
240V AC 50 Hz, 90W (BSI Models)
220V AC 50 Hz, 90W (CEE Models)
120V AC 60 Hz, 90W (CSA Models)
100V AC 50/60 Hz, 60/65W (JPN Models)
440(W)x404(H)x208(D) mm
(17.3"15.9"x8.2"")
Dimensions include all protruding parts,
16.6 kg (36.5 Ibs)
NOTE: 1. Specifications determined with SCOTCH #211 tape unless otherwise noted.
2. Specifications subject to change without notice.

ll. DISMANTLING OF UNIT
In
case
of
trouble,
etc.
necessitating
disassembly,
please
disassemble
in
the
order
shown
in
photographs.
Reassemble
in
reverse
order.
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il. ARRANGMENT OF PRINCIPAL PARTS
PLAY HOLD MICRO SWITCH SWI QT MICRO SWITCH SW-I6
BRAKE SOLENOID SL-2
REC MICRO SWITCH SW-5
PINCH WHEEL SOLENOID
BRAKE SOLENOID MICRO
MICRO SWITCH SW-9
SWITCH SW-8
REEL MOTOR MICRO SWITCH
Sw-!8
PINCH WHEEL SOLENOID SL-3
REVERSE SOLENOID SL-I
REVERSE SOLENOID MICRO
SWITCH SW~7
HEAD BLOCK MICRO SWITCH SW-6 & SW-I9
PAUSE MICRO SWITCH SW-i0
PAUSE LEVER TENSION MICRO SWITCH SW-14
TAPE SPEED SW-2 & SW-3
POWER
SW-I
PUSH
BUTTON
MONITOR SW-2
TAPE SELECTOR SW-|
RIGHT REEL MOTOR LEFT REEL MOTOR
24X0-MR
RESISTOR P.C
BOARD NE-l046
POWER TRANSFORMER
NET- |
POWER SUPPLY PC
BOARD NE-1048
SERVO CONTROL P.C
BOARD MY- 2036
OPERATION SWITCH
BLOCK
MAIN
MOTOR
SCM2 -24KJ
SA RC BOARD
NE-2034
EQUALIZER SWITCH
RC BOARD NE-5038
REC AMP RC BOARD P.B AMP RC BOARD
NE-5037 NE-5036

IV.
MECHANISM
ADJUSTMENT
REC MICRO SWITCH
Ssw-5
PINCH WHEEL ¥
SOLENOID
SL~3
PINCH WHEEL
PINCH WHEEL PRESSURE
ADJUSTMENT NUT
1.3 to 1.4 kg
P PLUNGER LEVER

PINCH WHEEL SOLENOID MICRO SWITCH SW-9
(A)
. POSITION ADJUSTMENT OF PINCH
WHEEL SOLENOID SL-3 (Refer to Fig. 1)
1) Remove head block.
2) Insert a 4.2 mm gauge (a U type washer etc.)
between the P Plunger Lever and P Joint (Refer
to Fig. 2).
3) Set the deck to playback mode and fix Pinch
Wheel Solenoid at position at which the pinch
wheel begins to rotate.
. PINCH WHEEL POSITION ADJUSTMENT
AT STOP MODE (Refer to Fig. 3)
1) Remove head block.
2) Adjust Stopper so that the clearance between
Pinch Wheel and Capstan Shaft is 9.5 mm.
. PINCH WHEEL PRESSURE ADJUSTMENT
(Refer to Fig. 2)
Adjust Pinch Wheel Pressure Adjustment Nut so that
pinch wheel pressure is 1.3 to 1.4 kg.
. POSITION ADJUSTMENT OF PLAY HOLD
MICROSWITCH SW-11 (Refer to Fig. 3)
Adjust Play Hold Microswitch position so that at
stop mode, the Play Hold Microswitch operates
properly and the Slide does not contact the body
of the microswitch.
QT MICRO SWITCH SW-I6
QUICK PLATE
CAPSTAN
Fig. 3
5. SLIDE ADJUSTMENT (Refer to Fig. 3)
Adjust part (A) of the Slide so that at stop mode, the
Pinch Wheel Solenoid Microswitch operates properly,
and part (A) does not strongly hit against the body
of the microswitch.
. POSITION ADJUSTMENT OF QUICK
PLATE (Refe to Fig. 3)
Adjust Quick Plate position so that at stop mode,
the Quick Tension Microswitch operates properly,
and the Quick Plate does not strongly hit against the
body of the microswitch.
. POSITION ADJUSTMENT OF RECORDING
MICROSWITCH SW-S (Refer to Fig. 1)
Adjust part (A) of the Slide so that at playback mode
the Recording Microswitch operates properly, and
part (A) does not contact the body of the micro-
switch.

BRAKE SOLENOID SL~2
SPRING” STOPPER
SPRING STOPPER
BRAKE SOLENOID
BRAKE TORQUE
MICRO SWITCH SW-8
350 to 400g
Fig. 4
QT LEVER B
QT MICRO SWITCH
PAUSE MICRO SWITCH SW-10'
PAUSE SLIDE
PINCH WHEEL
Fig. 5
10

REVERSE JOINT D
REVERSE
SOLENOID
D SWITCH LEVER DIRECTION LAMP & MOTOR
REVERSE MICRO SWITCH
SW-6, SW-I9
REVERSE SOLENOID MICRO
SWITCH SW-7
REVERSE JNOINT:
RECORDING AMP RC BOARD
Fig. 6
8.
POSITION
ADJUSTMENT
OF
BRAKE
12.
POSITION
ADJUSTMENT
OF.
REVERSE
SOLENOID
SL-2
(Refer
to
Fig.
4)
SOLENOID
SL-1
(Refer
to
Fig.
6)
Set
the
deck
to
playback
mode,
and
fix
Brake
Sole-
1)
Set
the
deck
to
reverse
mode,
and
adjust
Reverse
noid
at
position
at
which
the
left
and
right
brake
Solenoid
position
so
that
Reverse
Joint
D
acti-
levers
display
180°
angle
relativity.
-
vates
the
Reverse
Solenoid
Microswitch.
2) At this time, be careful that Reverse Joint D does
not contact the body of the microswitch.
9.POSITION ADJUSTMENT OF BRAKE
SOLENOID MICROSWITCH SW-8
(Refer
to
Fig.
4)
13.
D
SWITCH
LEVER
ADJUSTMENT
;
(Refer to Fig. 6)
Set the deck to reverse mode, and adjust D Switch
Lever so that the lever activates the Direction Indi-
cator Lamp and Reel Motor Torque Conversion
Microswitches.
Set the deck to playback mode, and adjust Brake
Solenoid Microswitch position so that the micro-
switch operates properly.
10. BRAKE TENSION ADJUSTMENT
(Refer to Fig. 4) 1.4 INSTALLATION POSITION ADJUST-
Adjust
Spring
Stopper
position
so
that
the
brake
MENT
OF
REVERSE
JOINT
tension
is
350
to
400g.
(Refer
to
Fig.
6)
Adjust Reverse Joint installation position so that
. i -++REV
11.PAUS DJUSTMENT (Refer to Fis. 5 when the deck is set to reverse mode, FWD
Bon M Reterte: Bes 3) Slide Switch of Recording Amp P.C Board (NE-
1) At playback mode, lock Pause Lever.
5037) is completely depressed.
2) Adjust Pause Lock Plate position to obtain a 0.3
to 0.5 mm clearance between Pinch Wheel and
Capstan.
3) When making this adjustment, be careful that the
clearance between Pinch Wheel and Capstan
does not exceed 0.5 mm.
4) Confirm that the Quick Tension Microswitch is
pushed when the Pause Lever is depressed and if
not, adjust with QT Lever B.
ep eS PS SS sh
11

O.Smm HEAD SWITCH REVERSE SLIDE
Fig. 7
MAIN MOTOR THRUST SUPPORT ANGLE
ADJUSTMENT WASHER
Fig. 8
TENSION MICRO SWITCH SW-I4
Fig. 9
12,

2
ee
ES
EP
ED
TAPE GUIDE
ADJUSTMENT WASHER
% LOWER THE GUIDE DOWN A LITTLE
15. INSTALLATION POSITION ADJUST-
MENT OF HEAD SWITCH SW-3
(Refer to'Figs. 7 and 12)
Adjust Head Switch installation position so that when
the deck is set to reverse mode, the head switch
which is mounted on the head block switches to the
reverse side and that the reverse slide scope is about
0.5 mm.
16. CAPSTAN SHAFT LOOSE PLAY ADJUST-
MENT (Refer to Fig. 8)
Adjust to obtain a clearance of about 0.1 mm bet-
ween the capstan shaft and thrust support angle.
17. OPERATING POSITION ADJUSTMENT
OF TENSION MICROSWITCH SW-14
(Refer to Fig. 9)
Adjust Tension Microswitch position so that when
the Tension Arm drops, the microswitch operates
perfectly to effect stop mode.
ADJUSTMENT WASHE .
LIFT THE GUIDE OF A LITTLE Fig. 10
7 D
a i ae
Fig. 11
18. TAPE GUIDE HEIGHT ADJUSTMENT
(Refer to Fig. 10)
1) Adjust Tape Guide height so that the tape does
not curl between tape guides on Head Base.
2) In case the tape guide is low, adjust by inserting
a U Type Washer on the right side in Fig. 10,
and in case it is high, adjust by inserting a washer
on the left side.
19.REEL TABLE HEIGHT ADJUSTMENT
(Refer to Fig. 11)
1) Load a tape and set the deck to F.FWD and REV
modes. Adjust Reel Table height so that the tape
winds on the center of the reels at both modes.
2) Tape should wind on center of reel regardless
of typeof reel used.
13

V. HEAD ADJUSTMENT
HEAD SWITCH FIXATION SCREW
TAPE GUIDE HEIGHT ADJUSTMENT NUT
REV COMB HEAD
REV PB Aas (REC, ERASE )
as
P4-
202
RE4-6
iatee year
Sllaaae
Scutld _-
RE re
ese
FWD COMB HEAD FWD PB HEAD
(REC, ERASE) P4-202
RE4-6
14

;
Test
Tape
Adjustment
Remarks
Step
Adjustment
Item
Supply
Signal
a
Point
emar
Tape Guide 1) Adjust so that tape travels
Optional
Height
smoothly
and
does
not
twist.
PHOS
Adjustment
2)
Do
not
thread
tape
over
Nut tension arm.
FWD
Comb
Head
Upper
edges
of
channel
1
head
core
Height
Adjustment
(ABC)
and
tape
are
the
same
height.
FWD
Playback
Head
.
Upper
edges
of
channel
1
head
core
Height
Adjustment
Optional
DEF)
and
tape
are
the
same
height.
Tape Guide Height
Adjustment
FWD Playback Head
Azimuth
Alignment
8,000
Hz
3-3/4
FWD
(F)
Maximum
output,
both
channels.
: ips Test Tape
Adjustment ;
Adjust head gap surface so that
there is no change in output level
when tension is applied to the
supply reel side.
FWD Playback Head
Gap Alignment
Adjustment
8,000 Hz 3-3/4
ips Test Tape
FWD Comb Head
Azimuth Alignment
Adjustment
Scoth #211 Tape,
15,000Hz
-20
dBm
Maximum
output,
both
channels.
Adjust head gap surface so that
there is no change in output
level when tension is applied
to the supply reel side.
FWD Comb Head
Gap Alignment
- Adjustment
Scoth #211 Tape,
15,000Hz ~-20 dBm
Chart 1
NOTES: 1) As perfect head adjustments are vital to tape deck performance, be sure that these adjustments are
carried out properly. ,
2) Be careful not to use a magnetized driver or other magnetized tools in the vicinity of the heads.
3) Use only new tape as level variation is likely to occur when using old tape.
4) Demagnetize heads with head demagnetizer before and after head adjusmtent.
5) Set tape speed to 7-1/2 ips except in steps 6 and 7.
6) Adjustments outlined in Chart 1 are only for FWD side heads. However, adjustments for REV side
heads are exactly the same.
15

VI. AMPLIFIER SYSTEM ADJUSTMENT
1. DC POWER SUPPLY VOLTAGE ADJUST- 2. TAPE SPEED ADJUSTMENT
MENT (Refer to Fig. 13) (Refer to Fig. 14)
_VR=0 1OKB. 7-1/2 ips 0.8%
VR-2 30KB 3-3/4ips +1.0%
Fig. 13
3. RECORDING AND PLAYBACK AMPLIFIER ADJUSTMENT (Refer to Fig. 15)
VR-2
L-1
VR-3
TC-1
TC-2
VR-3
VR-4
VR-5
50KB
23mH
2KB
soP
80P
5KB
iOKB
IOKB
0 Pe
, =
Tes
ne ‘ Peg REC AMP-PCEBO OST)
Fig. 15
16

Step
NOTES:
: Test Tape
Adjustment Item Supply Signal oe |
1)
2)
3)
4)
5)
6)
7)
FWD Recording
REV Recording
FWD Frequency
De
soncra
700
Hz
7-1/2
ips
Adjustment
0
VU
Test
Tape
Monitor Level
Adjustment
Scotch #211 Tape
1,000 Hz 0 VU
recording
0+1.5 dB
(0.775V)
Level
Adjustment
Scotch #211 Tape
1,000 Hz 0 VU
recording
0+1.5 dB
Level
(0.775V)
Adjustment
1,000 Hz,
10,000 Hz
flat
Scotch #211 Tape
1,000 Hz, 10,000 Hz
-20 VU recording
Response
Adjustment
REV Frequency Scotch #211 Tape 1,000 Hz,
Response 1,000 Hz, 10,000 Hz 10,000 Hz
Adjustment -20 VU recording flat
Bias Leak
Adjustment
Set tape speed to 7-1/2 ips except in Steps 6 and 7.
Tape Selector at “LOW NOISE”.
Monitor Switch at “TAPE” except in Step 3.
Output Volume at maximum.
New test tape should be used.
Adjustment of step 8 made from the face side of Playback Amp P.C Board.
The letter b following an adjustment part number indicates “Right Channel”.
Point
1 Playback Level 700 Hz 7-1/2 ips FWD VR-2 0+1.0 dB Within 0 +1.5 dB at
Adjustm ent 0 VU Test Tape 50 kB (0.775V) Reverse mode.
FWE VR-3
feof fom
1,000 Hz VR-3 0 dBm
-20 dBm rr 5 kB (0 VU)
Remarks
Line REC Volume
maximum. Monitor
Switch “SOURCE”.
Monitor Switch
“TAPE”.
Monitor Switch
“TAPE”.
Tape Speed
3-3/4 ips. Recheck
Recording Level.
Tape Speed
3-3/4 ips. Recheck
Recording Level.
Chart 2

VII.
DC
RESISTANCE
OF
VARIOUS
COILS
Between BLU-RED: 100 ohm
Main
Motor
SCM2-24KJ
Between
YLW-GRN:
180
ohm
Pick-up Coil: 635 ohm
Between YLW-GRN: 1,660 ohm
Headphone
Output
Transformer
N16-535S
Primary:
565
ohm
+15%
Secondary: 0.95 ohm 415%
Between 1-3: 0.3 ohm
Oscillator
Coil
OT-204
Between
4-6:
0.7
ohm
Between 7-9: 8.2 ohm
Playback
Head
P4-202
268
ohm
Recording: 5.5 ohm
Erase: 1.8 ohm
Recording/Erase
Combination Head
RE4-6
Chart 3
NOTE: The resistance values shown in this chart are average values.
18

Vill. CLASSIFICATION OF VARIOUS P.C BOARDS
1.
Zi
RELATION OF P.C BOARD TITLE AND NUMBER
resi CBN
Chart 4
COMPOSITION
OF
VARIOUS
P.C
BOARDS
1) P.B AMP P.C BOARD (NE-5036)
i Sy 7 eo fe
mA .
REO 8 Lr * MK 8 BLK
Bits \ oe TO EQUALIZER SWITCH PC BOARD NE-5038
QUALIZER SWITCI <= = —N—
BOARDS NE S058] pep 2 Pe Pe FROM MATE-—N—-LOCK PI
Cc SS) TO EQUALIZER SWITCH RC BOARD NE—5038
TO EQUAI R_ SWITCH P.C_ BOARD NE-5038 TO EQUALIZER SWITCH RC BOARD NE-5038
ME to LINE OUTPUT JACK J6.J7
WHT/SHORT BLK
MHT/CROSS_BLK 10) Gay
THT/LONG
VET.
wi
RED /WH
FROM REC AMP
WHT/LONG SKY
oO
BLK7WHT |TO VU METER MI
WHE TO VU METER M2
a TO VU METER M2(GND)
TO HEADPHONE JACK J8
PC BOARD NE-5037 (5)
TO HEADPHONE JACK J8
19