RX-V550 V450 HTR-5750 5740 DSP-AX450 , Yamaha
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AV RECEIVER/AV AMPLIFIER
RX-V550/HTR-5750
RX-V450/HTR-5740/DSP-AX450
SERVICE MANUAL
IMPORTANT NOTICE
This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.
It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are already
known and understood by the users, and have therefore not been restated.
WARNING:
Failure to follow appropriate service and safety procedures when servicing this product may result in personal
injury, destruction of expensive components, and failure of the product to perform as specified. For these reasons,
we advise all YAMAHA product owners that any service required should be performed by an authorized
YAMAHA Retailer or the appointed service representative.
IMPORTANT:
The presentation or sale of this manual to any individual or firm does not constitute authorization, certification or
recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.
The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, and
service departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable
and specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please
contact the distributor's Service Division.
WARNING:
Static discharges can destroy expensive components. Discharge any static electricity your body may have
accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).
IMPORTANT:
Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.
CONTENTS
TO SERVICE PERSONNEL .......................................... 2
IMPEDANCE SELECTOR ............................................. 3
FRONT PANELS ........................................................ 4~6
REAR PANELS ........................................................ 7~15
.................................... 16
17~18
......................................................... 18
......... 19~21
SELF DIAGNOSIS FUNCTION (DIAG)
22~42
43
................................................................. 44~49
................................................. 50~51
........................................................... 52
PRINTED CIRCUIT BOARD .................................. 53~73
.................................... 74
........................................ 75~85
......................................................... 87~123
......................................... 124~125
100884
P.O.Box 1, Hamamatsu, Japan
RX-V550/HTR-5750
RX-V450/HTR-5740/DSP-AX450
REMOTE CONTROL PANELS
RX-V550 (U, C, A, L, R, T, K models)
HTR-5750 (U, C, A, T, K models)
RX-V450 (U, C, A, L, R, T, K models)
HTR-5740 (U, C, A models)
DSP-AX450 (J model)
RX-V550 (B, G, E models)
RX-V450 (B, G, E models)
HTR-5740 (G, E models)
16
RX-V550/HTR-5750
RX-V450/HTR-5740/DSP-AX450
SPECIFICATIONS / ࢀߟ༷
Audio SectionΦʔσΟΦ෦
Minimum RMS Output Power (Power Amp. Section)ఆ֨ग़ྗύ
ϫʔΞϯϓ෦
[RX-V550/HTR-5750]
(20 Hz to 20 kHz, 0.06% THD, 8 ohms)
FRONT L/R
Damping FactorμϯϐϯάϑΝΫλ
20 Hz to 20 kHz, SPEAKER-A 100 or more
Input Sensitivity / Input ImpedanceೖྗײೖྗΠϯϐʔμϯε
CD, etc.
200 mV / 47 k-ohms
FM Section'.෦
Tuning Rangeड৴पൣғ
U, C models
87.5 to 107.9 MHz
HTR-5740 ........................ Gold color (T, K) models
Black color (U, C, G, E) models
Silver color (U, C, A, G, E) models
DSP-AX450 ..................... Gold color (J) model
Silver color (J) model
MULTI CH IN
FRONT L/R, CENTER, SURROUND L/R, SUB WOOFER
200 mV / 47 k-ohms
L, R models
87.5 to 108.0 / 87.50 to 108.00 MHz
Accessoriesଐ
Remote Control x 1, Batteries (Manganese Dry) x 4 (RAV250/
RAV251) / x 2 (RAV302), Indoor FM Antenna x 1, AM Loop
Antenna x 1, PAL 75/300 Socket [B model]
J model
76.0 to 90.0 MHz
90 W + 90 W
50dB Quieting SensitivityE#4/ײ (IHF)
(1kHz, 100% Mod.)
Mono
CENTER
90 W
Maximum Input Signal Level
/
࠷େڐ༰ೖྗ
1 kHz, 0.5% THD 2.0 V or more
Output Level / Output Impedanceग़ྗిѹग़ྗΠϯϐʔμϯε
REC OUT
SURROUND L/R
90 W + 90 W
SURROUND BACK
90 W
2.0
µ
V (17.3 dBf)
(1 kHz, 0.7% THD, 8 ohms)
FRONT L/R
Stereo
25
µ
V (39.2 dBf)
200 mV / 1.2 k-ohms
105 W + 105 W
Usable Sensitivity࣮༻ײ (IHF)
Mono
20Hz SUB WOOFER
4 V / 1.2 k-ohms
* Specifications are subject to change without notice due to product
improvements.
˞ ࢀߟ༷͓Αͼ֎؍༧ࠂͳ͘มߋ͞ΕΔ͜ͱ͕͋Γ·͢ɻ
U .......... U.S.A. model
CENTER
105 W
1.0
µ
V (11.2 dBf)
ZONE2 (RX-V550 U, C, A models)
200 mV / 1.2 k-ohms
SURROUND L/R
105 W + 105 W
Selectivityબ
Headphone Jack Rated Output / Impedance
ϔουϑΥϯग़ྗग़ྗΠϯϐʔμϯε
CD, etc. (1 kHz, 50 mV, 8 ohms)
SURROUND BACK
105 W
70 dB
[RX-V450/HTR-5740]
(20 Hz to 20 kHz, 0.06% THD, 8 ohms)
FRONT L/R
150 mV / 100 ohms
Signal to Noise Ratio৴߸ରࡶԻൺ (IHF)
Mono / Stereo
76 dB / 70 dB
C ...... Canadian model
Frequency Responseपಛੑ
CD, etc. to FRONT L/R (10 Hz to 100 kHz)
85 W + 85 W
Harmonic Distortion
(1 kHz)
Mono/Stereo
A .......... Australian model
B ...... British model
+0/-3.0 dB
CENTER
85 W
G .......... European model
E ...... South European model
SURROUND L/R
85 W + 85 W
Total Harmonic Distortionશߴௐ
(20Hz to 20kHz, 40W, 8 ohms)
CD, etc. (Effect Off) to FRONT L/R SP OUT 0.06 % or less
Signal to Noise Ratio
/
৴߸ରࡶԻൺ (IHF-A Network)
CD, etc. (Input shorted) SP OUT
250mV
L ........... Singapore model
R ...... General model
0.2 / 0.3 %
SURROUND BACK
85 W
T .......... Chinese model
K ...... Korean model
Stereo SeparationεςϨΦηύϨʔγϣϯ
1 kHz
(1 kHz, 0.7% THD, 8 ohms)
FRONT L/R
J ........... Japanese model
100 W + 100 W
42 dB
Frequency Responseपಛੑ
20 Hz to 15 kHz
CENTER
100 W
+0.5 / -2 dB
SURROUND L/R
100 W + 100 W
100 dB or more
Antenna InputΞϯςφೖྗ
SURROUND BACK
100 W
Residual NoiseཹϊΠζ (IHF-A Network)
FRONT L/R SP OUT
75 ohms unbalanced
Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic”, “Surround EX”, and the double-D symbol are
trademarks of Dolby Laboratories.
υϧϏʔϥϘϥτϦʔζ͔Βͷ࣮ࢪݖʹج͖ͮ͞Ε͍ͯ·͢ɻυ
ϧϏʔɺ%0-#:ɺυϧϏʔσδλϧɺ130-0(*$ɺαϥϯυ&9͓
Αͼμϒϧ%ه߸ ɺυϧϏʔϥϘϥτϦʔζͷඪͰ͢ɻ
[DSP-AX450]
(20 Hz to 20 kHz, 0.09% THD, 6 ohms)
FRONT L/R
150
µ
V or less
CENTER, REAR CENTER
85 W + 85 W
85 W
Channel SeparationνϟϯωϧηύϨʔγϣϯ
CD, etc. (Input 5.1 k-ohms shorted, 1 kHz/10 kHz)
60 dB or more/45 dB or more
Tone Control Characteristicsτʔϯίϯτϩʔϧಛੑ
BASS
Boost/Cut
AM Section".෦
Tuning Rangeड৴पൣғ
U, C models
SURROUND L/R
85 W + 85 W
SURROUND BACK
85 W
530 to 1,710 kHz
A, B, G, E, T, K, J models
531 to 1,611 kHz
Maximum Power࣮༻࠷େग़ྗ (EIAJ)
(1kHz, 10% THD)
[RX-V550/HTR-5750]
(R, T, K models)
FRONT L/R (8 ohms)
±
10 dB (60 Hz)
L, R models
530 to 1,710 / 531 to 1,611 kHz
"SILENT CINEMA" is a trademark of YAMAHA CORPORATION.
ʮαΠϨϯτγΞλʔʗ4*-&/55)&"5&3ʯϠϚϋגࣜձࣾͷొ
ඪͰ͢ɻ
TREBLE
Boost/Cut
±
10 dB (20 kHz)
Usable Sensitivity࣮༻ײ
300
µ
V/m
130 W + 130 W
Filter CharacteristicsϑΟϧλʔಛੑ
FRONT L/R, CENTER, SURROUND L/R SURROUND BACK SP
Small (H.P.F.)
fc= 40/60/80/90/100/110/120/160/200 Hz / 12 dB/ oct.
SUBWOOFER (L.P.F.)
fc= 40/60/80/90/100/110/120/160/200 Hz / 24 dB/ oct.
AntennaΞϯςφೖྗ
CENTER, REAR CENTER (8 ohms)
130 W
Loop Antenna
SURROUND L/R (8 ohms)
130 W + 130 W
SURROUND BACK (8 ohms)
130 W
[RX-V450/HTR-5740]
(R, T, K models)
FRONT L/R (8 ohms)
125 W + 125 W
General૯߹
Power Supply
/
ిݯిѹ
U, C models
“DTS” and “DTS-ES Digital Surround” and “Neo:6” are
trademarks of Digital Theater Systems, Inc.
%54ɺ%54&4σδλϧαϥϯυ͓Αͼ/FPσδλϧγΞλʔ
γεςϜζͷొඪͰ͢ɻ
CENTER, REAR CENTER (8 ohms)
125 W
AC 120 V, 60 Hz
SURROUND L/R (8 ohms)
125 W + 125 W
A model
AC 240 V, 50 Hz
Video SectionϏσΦ෦
Video Signal TypeϏσΦ৴߸ํࣜ
U, C, R, K, J models
SURROUND BACK (8 ohms)
125 W
B, G, E models
AC 230 V, 50 Hz
L model
AC 220/230-240 V, 50/60 Hz
[DSP-AX450]
FRONT L/R (6 ohms)
125 W + 125 W
NTSC
R model
AC 110/120/220/230-240 V, 50/60 Hz
CENTER, REAR CENTER (6 ohms)
125 W
A, B, G, E, L, T models
PAL
T model
AC 220 V, 50 Hz
SURROUND L/R (6 ohms)
125 W + 125 W
Video Signal LevelϏσΦ৴߸
K model
AC 220 V, 60 Hz
J model
AC 100V, 50/60 Hz
SURROUND BACK (6 ohms)
125 W
1 Vp-p / 75 ohms
""$ϩΰϚʔΫ υϧϏʔϥϘϥτϦʔζͷඪͰ͢ɻ
Power Consumption
/
ফඅిྗ
U, C models 350 W / 440 VA
A, B, G, E, L, R, T, K models 360 W
J model 245 W
Standby Power Consumption (reference data)ػ࣌ফඅిྗ
ʢࢀߟʣ
AC240 V / 50 Hz
DIN Standard Output Power Per Channel%*/ύϫʔ
(B, G, E, L models) (1 kHz, 0.7% THD, 4 ohms)
[RX-V550/HTR-5750]
FRONT L/R
S-Video Signal Level4ϏσΦ৴߸
[RX-V550/HTR-5750/DSP-AX450]
Y
• DIMENSIONSੇ๏ਤ
RX-V550 Except RX-V550
1 Vp-p / 75 ohms
135 W + 135 W
C
0.286 Vp-p / 75 ohms
CENTER
135 W
Component Signal Level
(Except J model)
Y 1 Vp-p / 75 ohms
Cb/Cr 0.7 Vp-p / 75 ohms
D4-Video Signal Level /
%ࢠϏσΦ৴߸
(J model)
Y
SURROUND L/R
135 W + 135 W
0.1 W
SURROUND BACK
135 W
Maximum Power Consumption [R model]
(6ch Drive, 10% THD)
[RX-V450/HTR-5740]
FRONT L/R
700 W
130 W + 130 W
1 Vp-p / 75 ohms
AC Outlets"$ΞτϨοτ
2 Switched Outlets
U, C, G, E, T, J models
CENTER
130 W
Cb/Cr
0.7 Vp-p / 75 ohms
SURROUND L/R
130 W + 130 W
Maximum Input Level࠷େڐ༰ೖྗ
100 W max. total
SURROUND BACK
130 W
1.5 Vp-p or more
L, R models
50 W max. total
1 Switched Outlet
A, B models
IEC Power *&$ύϫʔ[B, G, E, L models]
[RX-V550/HTR-5750]
FRONT L/R (1 kHz, 0.06% THD, 8 ohms)
Signal to Noise Ratio৴߸ରࡶԻൺ
100 W max.
50 dB or more
Monitor Out Frequency ResponseϞχλʔΞτपଳҬ
[RX-V550/HTR-5750]
Composite Video Signal Level,
S-Video Signal Level
100 W + 100 W
Dimensionsੇ๏ (W x H x D)
RX-V550 435 x 171 x 420 mm (17-1/8" x 6-3/4" x 16-1/2")
HTR-5750/RX-V450/HTR-5740/DSP-AX450
435 x 161 x 416 mm (17-1/8" x 6-5/16" x 16-3/8")
[RX-V450/HTR-5740]
FRONT L/R (1 kHz, 0.06% THD, 8 ohms) 95 W + 95 W
Dynamic Power Per ChannelμΠφϛοΫύϫʔ (IHF)
[RX-V550/HTR-5750]
FRONT L/R (8/6/4/2 ohms)
5 Hz to 10 MHz, -3 dB
Weight࣭ྔ
S-Video Signal Level (J model)
5 Hz to 10 MHz, -3 dB
11.0 kg (24 lbs. 4 oz.)
120/155/190/235 W
Component Video Signal Level
5 Hz to
60 MHz, -3 dB
Finish্͛
RX-V550 .......................... Gold color (L, R, T, K) models
Black color (U, C, A, B, G, E, R) models
Titanium color (B, G, E models)
HTR-5750 ............................
Gold color (T, K) models
Black color (U, C) models
Silver color (U, C, A) models
RX-V450 .......................... Gold color (L, R, T, K) models
Black color (U, C, A, B, G, E, R) models
Silver color (C, L, R) models
Titanium color (B, G, E models)
[RX-V450/HTR-5740]
FRONT L/R (8/6/4/2 ohms)
115/150/185/230 W
[RX-V550/HTR-5750/DSP-AX450]
Composite Video Signal Level
5 Hz to 10 MHz, -3 dB
S-Video Signal Level
(J model)
5 Hz to 10 MHz, -3 dB
Component Video Signal Level
(Except J model)
5 Hz to 60 MHz, -3 dB
[DSP-AX450]
FRONT L/R (8/6/4/2 ohms) –/125/155/200 W
Dynamic HeadroomμΠφϛοΫϔουϧʔϜ
(U, C models)
[RX-V550/HTR-5750]
8 ohms
D4-Video Signal Level (J model)
5 Hz to 60 MHz, -3 dB
1.25 dB
[RX-V450/HTR-5740]
8 ohms
435 (17-1/8")
1.31 dB
Unit : mm (inch)/୯ҐNNʢΠϯνʣ
17
A, B, G, E, T, K models
87.5 to 108.0 MHz
RX-V550/HTR-5750
RX-V450/HTR-5740/DSP-AX450
• Set Menu Table
/ ηοτϝχϡʔ
• The variable range of the parameter (Min/Max/Step)ύϥϝʔλʔͷՄมൣғʢ࠷খ࠷େεςοϓʣ
Unit
CATEGORY
MAIN MENU
SUB MENU
SELECT MENU
VALUE [INITIAL]
Pro Logic IIx Music Parameter
Unit
DSP LEVEL
-6/+3/1
dB
PLII/PLIIx
PLII/PLIIx
BASIC SETUP
ROOM : S >M L S / [M] / L
SUBWOOFER : YES [YES] / NONE
SPEAKER : 6spk
DELAY
1/99/1
ms
PANORAMA
OFF/ON
2 / 3 / 4 / 5 / [6]
DIMENSIONS
-3/+3/1
CT WIDTH
0/7/1
>SET CANCEL
[SET] / CANCEL
6ch Stereo Parameter
Unit
CHECK OK? : YES
[YES] / NO
CT LEVEL
0/100/1
%
MANUAL SETUP 1 SOUND MENU
A ) SPEAKER SET
CENTER : SML NONE / [SML] / LRG
FRONT : LARGE SMALL / [LARGE]
SURR LR : SML NONE / [SML] / LRG
SURR B : SML NONE / [SML] / LRG
BASS OUT : BOTH SWFR / FRONT / [BOTH]
Cross Over : 80Hz 40 / 60 / [80] / 100 / 110 / 120 / 160 / 200 Hz
SWFR PHASE : NRM [NRM] / REV
SL LEVEL
0/100/1
%
DTS Neo:6 Music Parameter
Unit
SR LEVEL
0/100/1
%
C. IMAGE
0/0.5/0.1
SB LEVEL
0/100/1
%
INTERNAL VIEW
B ) SP LEVEL
L •••••||••••• R
[CENTER]
±
10 step
RX-V550
C •••••||•••••
RL •••••||•••••
RC •••••||•••••
RR •••••||•••••
SWFR•••••||•••••
1 2 3 4 5 678 90
1
SUBTRANS P.C.B.
2
POWER (2) P.C.B. (R, L models only)
3
FUNCTION (5) P.C.B. (U, C, A models only)
4
MAIN (2) P.C.B.
5
Tuner
6
FUNCTION (7) P.C.B.
7
FUNCTION (3) P.C.B.
8
FUNCTION (4) P.C.B.
9
FUNCTION (8) P.C.B.
0
FUNCTION (6) P.C.B.
A
FUNCTION (2) P.C.B.
B
DSP P.C.B.
C
MAIN (1) P.C.B.
D
FUNCTION (1) P.C.B.
E
POWER (1) P.C.B.
F
MAIN (7) P.C.B.
G
MAIN (4) P.C.B.
H
OPERATION (4) P.C.B.
I
OPERATION (1) P.C.B.
J
OPERATION (3) P.C.B.
K
OPERATION (2) P.C.B.
L
Power Transformer
C ) SP DISTANCE
UNIT : feet
[feet] / meters
FRONT L 10.0ft
feet : 1.0 to 80.0 ft [7.0ft] / 0.5 ft step
A
FRONT R 10.0ft
CENTER 10.0ft
SURR L 10.0ft
SURR R 10.0ft
SURR B 7.0ft
SWFR 10.0ft
FRONT L 3.00m
B
C
D
meters : 0.30 to 24.00 m [3.00m] / 0.10 m step
E
F
FRONT R 3.00m
CENTER 3.00m
SURR L 3.00m
SURR R 3.00m
SURR B 3.00m
SWFR 3.00m
G
D ) CENTER GEQ
TEST : >OFF ON
[OFF] / ON
LKJ
I
H
100Hz -||- 0
-6 dB to +6 dB [0 dB] / 0.5 STEP
300Hz -||- 0
1kHz -||- 0
3kHz -||- 0
10kHz -||- 0
HTR-5750/RX-V450/HTR-5740/DSP-AX450
1
SUBTRANS P.C.B.
2
POWER (2) P.C.B. (R, L models only)
3
VIDEO P.C.B. (DSP-AX450 only)
4
MAIN (2) P.C.B.
5
Tuner
6
FUNCTION (7) P.C.B. (Except DSP-AX450)
7
FUNCTION (3) P.C.B. (HTR-5750, DSP-AX450 only)
8
FUNCTION (4) P.C.B.
9
FUNCTION (8) P.C.B.
0
FUNCTION (6) P.C.B.
A
FUNCTION (2) P.C.B.
B
DSP P.C.B.
C
MAIN (1) P.C.B.
D
FUNCTION (1) P.C.B.
E
POWER (1) P.C.B.
F
MAIN (7) P.C.B.
G
MAIN (5) P.C.B.
H
OPERATION (4) P.C.B.
I
OPERATION (1) P.C.B.
J
OPERATION (5) P.C.B.
K
OPERATION (2) P.C.B.
L
OPERATION (3) P.C.B.
M
Power Transformer
1
2 3 4 5 678 90
E ) LFE LEVEL
SP LFE : 0
-20 dB to 0 dB [0 dB] / 1 STEP
HP LFE : 0
-20 dB to 0 dB [0 dB] / 1 STEP
F ) D . RANGE
SP D . R : MAX
MIN / STD / [MAX]
HP D . R : MAX
MIN / STD / [MAX]
G ) AUDIO SET
MUTE : MUTE
-20 dB / [MUTE]
DELEY : 0 ms
0 ms to 160 ms / 1 step
A
( Except RX-V550 )
DUAL MONO : MAIN [MAIN] / SUB / ALL
2 INPUT MENU
A ) I / O ASSIGN
C . V (A) : DVD
[DVD] / VCR / V-AUX / DTV/CBL
B
C . V (B) : DVT/CBL
DVD / VCR / V-AUX / [DTV/CBL]
C
D
OUT (1) : MD/CD-R
[MD/CD-R] / CD / VCR / V-AUX / DTV/CBL / DVD
IN (2) : MD/CD-R
[MD/CD-R] / CD / VCR / V-AUX / DTV/CBL / DVD
E
F
IN (3) : DVD
MD/CD-R / CD / VCR / V-AUX / DTV/CBL / [DVD]
IN (4) : DTV/CBL
MD/CD-R / CD / VCR / V-AUX / [DTV/CBL] / DVD
B ) INPUT MODE
> AUTO / LAST
[AUTO] / LAST
G
3 OPTION MENU
A ) DISPLAY SET
DIMMER : 0
-4 to 0 / 1 step
V CONV : ON
OFF / [ON]
B ) MEMORY GUARD
MEM . GUARD : OFF [OFF] / ON
C ) PARAM . INI
D ) ZONE SET
SP B : FRONT
[FRONT] / ZONE B
M
L
K
J
I
H
18
RX-V550/HTR-5750
RX-V450/HTR-5740/DSP-AX450
RX-V550
DISASSEMBLY PROCEDURES
7
8
(Remove parts in the order as numbered.)
Disconnect the power cable from the AC outlet.
1. Removal of Top Cover
a. Remove 4 screws (
1
) and 4 screws (
2
). (Fig. 1)
b. Slide the Top Cover rearward to remove it. (Fig. 1)
4. Removal of Sub Chassis Unit
a. Remove 2 screws (
5
) and then slide the Sub Chassis Unit
forward. (Fig. 1)
b. Loosen the harness fixture fixing the cable.
c. Remove CB306, CB309, CB505 and CB863 and then remove
the Sub Chassis Unit. (Fig. 1)
2. Removal of Front Panel Unit
a. Remove 2 Knobs. (Fig. 1)
b. Remove 6 screws (
3
) and then remove the Front Panel Unit.
(Fig. 1)
2
Top Cover
3. Removal of Plate Side
a. Remove 2 push rivets (
4
). (Fig. 1)
b. Remove the Plate Side. (Fig. 1)
2
Fig. 3
1
Plate Side
6. Removal of FUNCTION (1) ~ (8) P.C.B.s and Tuner
a. Remove CB307, CB351, CB502 and CB503. (Fig. 2)
b. Remove 21 (U, C, A models) / 20 (except U, C, A models)
screws (
8
). (Fig. 3)
c. Remove FUNCTION (1) ~ (8) P.C.B.s. and the Tuner. (Fig. 4)
Sub Chassis Unit
1
CB863
CB505
4
3
FUNCTION (4) P.C.B.
FUNCTION (2) P.C.B.
5
FUNCTION (3) P.C.B.
FUNCTION (8) P.C.B.
FUNCTION (7) P.C.B.
FUNCTION (5) P.C.B.
(U, C, A models only)
FUNCTION (6) P.C.B.
CB306
%41P.C.B.
CB309
3
Plate Side
5
4
Tuner
Knob
Front Panel Unit
Fig. 1
5. Removal of DSP P.C.B.
a. Remove 1 screw (
6
). (Fig. 2)
b. Remove 7 screws (
7
). (Fig. 3)
c. Remove CB2. (Fig. 2)
d. Lift up the FUNCTION (2) P.C.B. and remove the CB1. (Fig. 2)
e. Remove the DSP P.C.B. with the Support/DSP. (Fig. 2)
CB502
CB503
FUNCTION (2) P.C.B.
FUNCTION (1) P.C.B.
DSP P.C.B.
CB1
Fig. 4
CB2
Support/DSP
CB307
6
CB351
Fig. 2
19
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