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AV RECEIVER
RX-V620/HTR-5460
RX-V620RDS
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.



s CONTENTS
TO SERVICE PERSONNEL ........................................... 1 IC DATA ................................................................ 31 ­ 38
FRONT PANELS ............................................................. 2 DISPLAY DATA .................................................... 39 ­ 40
REAR PANELS ......................................................... 3 ­ 4 PIN CONNECTION DIAGRAM ..................................... 41
SPECIFICATIONS ..................................................... 5 ­ 7 BLOCK DIAGRAM ................................................ 42 ­ 45
INTERNAL VIEW ............................................................ 7 PRINTED CIRCUIT BOARD ................................. 46 ­ 69
DISASSEMBLY PROCEDURES ............................ 8 ­ 10 SCHEMATIC DIAGRAM ....................................... 70 ­ 75
SELF DIAGNOSIS FUNCTION ............................. 11 ­ 29 PARTS LIST .......................................................... 76 ­ 94
AMP CHECK ................................................................. 30 REMOTE CONTROL TRANSMITTER .................. 95 ­ 97
RX-V620/HTR-5460
RX-V620RDS




100760
RX-V620/HTR-5460/RX-V620RDS




s TO SERVICE PERSONNEL
1. Critical Components Information
Components having special characteristics are marked Z AC LEAKAGE
and must be replaced with parts having specifications equal WALL EQUIPMENT TESTER OR
to those originally installed. OUTLET UNDER TEST EQUIVALENT

2. Leakage Current Measurement (For 120V Models Only)
When service has been completed, it is imperative to verify
that all exposed conductive surfaces are properly insulated
from supply circuits.
INSULATING
q Meter impedance should be equivalent to 1500 ohm shunted TABLE
by 0.15µF.

q Leakage current must not exceed 0.5mA. q Be sure to test for leakage with the AC plug in both
polarities.



"CAUTION"
"F741 : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 2A, 125V FUSE."
A V "F742 : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 8A, 125V FUSE."

CAUTION
F741 : REPLACE WITH SAME TYPE 2A, 125V FUSE.
F742 : REPLACE WITH SAME TYPE 8A, 125V FUSE.

ATTENTION
F741 : UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 2A, 125V.
F742 : UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 8A, 125V.




WARNING: CHEMICAL
CONTENT NOTICE! WARNING
Do not change the IMPEDANCE SELECTOR
The solder used in the production of this product switch setting while the power to this unit is
contains LEAD. In addition, other electrical/ on, otherwise this unit may be damaged.
electronic and/or plastic (where applicable)
components may also contain traces of chemicals IMPEDANCE SELECTOR
found by the California Health and Welfare
Agency (and possibly other entities) to cause
cancer and/or birth defects or other reproductive
harm.
DO NOT PLACE SOLDER, ELECTRICAL/
ELECTRONIC OR PLASTIC COMPONENTS IN
YOUR MOUTH FOR ANY REASON
WHATSOEVER!
Avoid prolonged, unprotected contact between
solder and your skin! When soldering, do not
inhale solder fumes or expose eyes to solder/flux
vapor!
If you come in contact with solder or components
located inside the enclosure of this product, wash
your hands before handling food.
RX-V620/HTR-5460
RX-V620RDS




1
RX-V620/HTR-5460/RX-V620RDS




s FRONT PANELS

w RX-V620/HTR-5460

VOLUME
D I G I TA L




D I G I TA L


SURROUND
STANDBY
/ON




INPUT MODE 6CH INPUT



BASS BASS TREBLE SPEAKERS
EXTENSION DSP PRESET TUNING INPUT
A B EFFECT PROGRAM /TUNING FM/AM MEMORY MODE




EDIT MAN'L/AUTO FM AUTO/MAN'L MONO
ON OFF ­ + ­ + ON OFF


PHONES S VIDEO VIDEO L AUDIO R OPTICAL




SILENT VIDEO AUX




w RX-V620RDS

VOLUME
D I G I TA L




RDS MODE/FREQ EON
D I G I TA L


SURROUND
STANDBY
/ON PTY SEEK
MODE START




INPUT MODE 6CH INPUT



BASS BASS TREBLE SPEAKERS
EXTENSION DSP PRESET TUNING INPUT
A B EFFECT PROGRAM /TUNING FM/AM MEMORY MODE




EDIT MAN'L/AUTO FM AUTO/MAN'L MONO
ON OFF ­ + ­ + ON OFF


PHONES S VIDEO VIDEO L AUDIO R OPTICAL




SILENT VIDEO AUX




A/B/C/D/E
RX-V620/HTR-5460
RX-V620RDS




2
RX-V620/HTR-5460/RX-V620RDS




s REAR PANELS

w RX-V620/HTR-5460 U model




w RX-V620/HTR-5460 C model




w RX-V620 R model, RX-V620/HTR-5460 T model


240V




50




w RX-V620 L model
RX-V620/HTR-5460
RX-V620RDS




3
RX-V620/HTR-5460/RX-V620RDS




w RX-V620/HTR-5460 A model




w RX-V620RDS B model




w RX-V620RDS G model




RX-V620/HTR-5460
RX-V620RDS




4
RX-V620/HTR-5460/RX-V620RDS




s SPECIFICATIONS

s AUDIO SECTION Signal-to-Noise Ratio (IHF-A-Network)
PHONO MM to REC OUT, Input Shorted 5mV
Minimum RMS Output Power per Channel U, C, R, T models . . . . . . . . . . . . . . . . . . . . . . . . . . 86dB
MAIN, 20Hz to 20kHz, 0.06% THD, 8 A, B, G, L models . . . . . . . . . . . . . . . . . . . . . . . . . . 81dB
U, C models . . . . . . . . . . . . . . . . . . . . . . . . 100W+100W CD, etc, to SP OUT
R, T, A, B, G, L models . . . . . . . . . . . . . . . . . 90W+90W Input Shorted 250mV (Effect off) . . . . . . . . . . . . . 100dB
CENTER, 20Hz to 20kHz, 0.06% THD, 8 Residual Noise (IHF-A-Network)
U, C models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100W MAIN L/R, SP OUT . . . . . . . . . . . . . . . . . . . . . . . . . 150µV
R, T, A, B, G, L models . . . . . . . . . . . . . . . . . . . . . . 90W Channel Separation (Vol. ­30dB, Effect off)
REAR, 20Hz to 20kHz, 0.06% THD, 8 PHONO MM, Input Shorted, 1kHz/10kHz . . . . 60dB/55dB
U, C models . . . . . . . . . . . . . . . . . . . . . . . . 100W+100W CD, etc, Input 5.1k Shorted, 1kHz/10kHz . . 60dB/45dB
R, T, A, B, G, L models . . . . . . . . . . . . . . . . . 90W+90W Tone Control Characteristics
Minimum RMS Output Power per Channel BASS : Boost/cut . . . . . . . . . . . . . . . . . . ±10dB (50Hz)
MAIN, 1kHz, 8 Turnover Frequency . . . . . . . . . . . . . . . . 350Hz
U, C models (0.09% THD) . . . . . . . . . . . . 110W+110W TREBLE : Boost/cut . . . . . . . . . . . . . . . . . . ±10dB (20kHz)
R, T, A, B, G, L models (0.06% THD) . . . 100W+100W Turnover Frequency . . . . . . . . . . . . . . . 3.5kHz
CENTER, 1kHz, 8 Filter Characteristics
U, C models (0.09% THD) . . . . . . . . . . . . . . . . . . 110W MAIN, REAR SP SMALL (H.P.F.) . . fc = 90Hz, 12dB/oct.
R, T, A, B, G, L models (0.06% THD) . . . . . . . . . 100W SUBWOOFER OUT (L.P.F.) . . . . . . fc = 90Hz, 18dB/oct.
REAR, 1kHz, 8 Bass Extension . . . . . . . . . . . . . . . . . . . . . . . . . . +6dB (60Hz)
U, C models (0.09% THD) . . . . . . . . . . . . 110W+110W
R, T, A, B, G, L models (0.06% THD) . . . 100W+100W
Maximum Power per Channel (R, T models only)
s FM SECTION
MAIN, 1kHz, 10% THD, 8, EIAJ . . . . . . . . . 115W+115W
CENTER, 1kHz, 10% THD, 8, EIAJ . . . . . . . . . . . 115W Tuning Range
REAR, 1kHz, 10% THD, 8, EIAJ . . . . . . . 115W+115W U, C models . . . . . . . . . . . . . . . . . . . . . . . 87.5 to 107.9MHz
Dynamic Power per Channel A, B, G, L models . . . . . . . . . . . . . . . . 87.50 to 108.00MHz
MAIN, 8/6/4/2 R, T models . . . . . . . . . 87.5 to 108.0/87.50 to 108.00MHz
U, C models . . . . . . . . . . . . . . . . . . . 130/150/190/240W 50dB Quieting Sensitivity (IHF, 75 )
R, T, A, B, G, L models . . . . . . . . . . 120/140/175/210W Mono (1kHz, 100% Mod.) . . . . . . . . . . . . . 2.0µV (17.3dBf)
DIN Standard Output Power per Channel ( G model only) Stereo (1kHz, 100% Mod.) . . . . . . . . . . . . . 25µV (39.2dBf)
MAIN, 1kHz, 0.7% THD, 4 . . . . . . . . . . . . 130W+130W Usable Sensitivity (IHF)
CENTER, 1kHz, 0.7% THD, 4 . . . . . . . . . . . . . . . 130W Mono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0µV (11.2dBf)
REAR, 1kHz, 0.7% THD, 4 . . . . . . . . . . . . 130W+130W Selectivity
Dynamic Headroom (U, C models only) 400kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70dB
8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.14dB Signal-to-Noise Ratio (IHF)
IEC Power (G model only) Mono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76dB
MAIN, 1kHz, 0.06% THD, 8 . . . . . . . . . . . 100W+100W Stereo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70dB
Damping Factor Harmonic Distortion
MAIN, 20Hz to 20kHz, 8 . . . . . . . . . . . . . . . . 80 or more Mono (1kHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.2%
Input Sensitivity/Impedance Stereo (1kHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3%
PHONO MM . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5mV/47k Stereo Separation
CD, etc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150mV/47k 1kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45dB
EXT. DECODER Frequency Response
MAIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150mV/47k 20Hz to 15kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.5/-2dB
CENTER . . . . . . . . . . . . . . . . . . . . . . . . . . . 150mV/47k Antenna Input . . . . . . . . . . . . . . . . . . . . . . . 75 unbalanced
REAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150mV/47k
SUBWOOFER . . . . . . . . . . . . . . . . . . . . . . 150mV/47k
Maximum Input Signal Level
PHONO MM, 1kHz, 0.1% THD (Effect on) . . . . . . 100mV
s AM SECTION
CD, etc, 1kHz, 0.5% THD (Effect on) . . . . . . . . . . . . 2.2V Tuning Range
Output Level/Impedance U, C models . . . . . . . . . . . . . . . . . . . . . . . . 530 to 1,710kHz
REC OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . 150mV/1.2k A, B, G, L models . . . . . . . . . . . . . . . . . . . 531 to 1,611kHz
PRE OUT (B, G models only) . . . . . . . . . . . . . 2.1V/1.2k R, T models . . . . . . . . . . . . . 530 to 1,710/531 to 1,611kHz
SUBWOOFER (MAIN SP : SMALL) . . . . . . . . . . . . 4.0V/1.2k Usable Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . 300µV/m
Headphone Jack Rated Output/Impedance Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loop antenna
CD, etc (1kHz, 150mV, 8) . . . . . . . . . . . . . . . 0.4V/560
Frequency Response
CD, etc (10Hz to 100kHz, MAIN L/R) . . . . . . . . +0/-3.0dB
RIAA Equalization Deviation
PHONO MM (20Hz to 20kHz) . . . . . . . . . . . . . . . 0±0.5dB
Total Harmonic Distortion (20Hz to 20kHz)
PHONO MM to REC OUT (1V) . . . . . . . . . . . . . . . . 0.02%
CD, etc, to SP OUT L/R (45W/8) . . . . . . . . . . . . . 0.06%
RX-V620/HTR-5460
RX-V620RDS




5
RX-V620/HTR-5460/RX-V620RDS




s VIDEO SECTION q SUPERIMPOSING
Input DVD, etc. Output Superimposing
Video Signal Type Terminal Signal Monitor connection
U, C models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NTSC S O O O (On screen)
A, B, G, L models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAL V O -- X
R, T models . . . . . . . . . . . . . . . . . . . . . . . . . . . NTSC/PAL S O X X
Composite Video Signal Level . . . . . . . . . . . . . . 1Vp-p/75 V O -- O (On screen)
S-Video Signal Level S O O O (On screen)
Y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Vp-p/75 V X -- X
S O X X
C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.286Vp-p/75
V X -- O (Blue back)
Component Signal Level
S X -- X
Y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Vp-p/75 V O -- O (On screen)
Cb/Cr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.7Vp-p/75 S X -- O (Blue back)
Video Maximum Input Level . . . . . . . . . . . . . . . . . . 1.5Vp-p V X -- O (Blue back)
Video Signal-to-Noise Ratio . . . . . . . . . . . . . . . . . . . . 50dB
Monitor Output Frequency Response S : S video signal
Composite Video Signal . . . . . . . . . . 5Hz ­ 10MHz, ­3dB V : Composite video signal
S-Video Signal . . . . . . . . . . . . . . . . . 5Hz ­ 10MHz, ­3dB O : YES
Component Signal . . . . . . . . . . . . . . . DC ­ 30MHz, ­3dB X : NO
-- : NO CARE
Caution: Superimposing function is not usable for component signals.



s GENERAL
Power Supply
q DIMENSIONS
U, C models . . . . . . . . . . . . . . . . . . . . . . . AC 120V, 60Hz
A model . . . . . . . . . . . . . . . . . . . . . . . . . . . AC 240V, 50Hz




(13/16")
21.5
B, G, L models . . . . . . . . . . . . . . . . . . . . . AC 230V, 50Hz
R, T models . . . . . . . . . . . AC 110/120/220/240V, 50/60Hz
Power Consumption
U model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260W
C model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330VA/260W
R, T, A, B, G, L models . . . . . . . . . . . . . . . . . . . . . . 260W
Standby Power Consumption




390 (15­5/16")
352.5 (13­7/8")
U, C models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.8W
A, B, G, L models . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.9W
Maximum Power Consumption (R model only) . . . . . 610W
AC Outlets
U, L, G models, Switched x 2 . . . . . . . . 100W max (Total)
R, T models, Switched x 2 . . . . . . . . . . . 50W max (Total)
C model, Switched x 2 . . . . . 100W max/1.0A max (Total)
A, B models, Switched x 1 . . . . . . . . . . . . . . . . 100W max
Dimensions (W x H x D) . . . . . . . . . . . . . 435 x 151 x 390mm

(5/8")
16
(17-1/8" x 5-15/16" x 15-3/8")
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.5 kg (23 lbs 2oz) 435 (17­1/8")
Finish
RX-V620 . . . . . . . . . . . Black color (U, C, R, T, A models)
Gold color (R, T, L models)
(5­1/8")


(5­15/16")
130




RX-V620RDS . . . . . . . . . . . . . . Black color (B, G models)
151




Gold color (G model)
Titanium color (G model)
HTR-5460 . . . . . . . . . . . . . Black color (U, C, T, A models)
(13/16")




Gold color (T models)
21




Accessories . . . . . . . . . . . . . . . . . . . . . AM loop antenna x 1
Indoor FM antenna x 1
PAL 75/300 socket x 1(B only)
Units : mm (inch)
Remote Control Transmitter x 1
Battery (size "AAA", "R03") x 4
Manufactured under license from Dolby Laboratories.
* Specifications subject to change without notice. "Dolby Digital", "AC-3", "Pro Logic", and the double-D
symbol V are trademarks of Dolby Laboratories. © 1992-
U . . . . . . . . . . USA model 1997 Dolby Laboratories. All rights reserved.
C . . . . . . Canadian model
R . . . . . . . General model Manufactured under license from Digital Theater Systems,
T . . . . . . . . . China model Inc. US Pat. No. 5,451,942 and other world-wide patents
RX-V620/HTR-5460




A . . . . . Australian model issued and pending. "DTS", "DTS Digital Surround", are
RX-V620RDS




trademarks of Digital Theater Systems, Inc. copyright
B . . . . . . . . British model
1996 Digital Theater Systems, inc. All rights reserved.
G . . . . . European model
L . . . . . Singapore model
6
RX-V620/HTR-5460/RX-V620RDS



q SET MENU TABLE

No. SET MENU PRESET VALUE SETTING RANGES
1. SPEAKER SET
1A CENTER SPEAKER LARGE LARGE/SMALL/NONE
1B MAIN SPEAKER LARGE LARGE/SMALL
1C REAR L/R SPEAKER LARGE LARGE/SMALL/NONE
1D LFE/BASS OUT BOTH SUBWOOFER/MAIN/BOTH
1E MAIN LEVEL NORMAL NORMAL/­10dB
2. L/R BALANCE 0 L -- 0 -- R (0.5 step) (L/R 10.0)
3. HP TONE CTRL BASS : 0dB ­6dB -- +3dB (1dB step)
TREBLE : 0dB ­6dB -- +3dB
4. I/O ASSIGNING
4A COMPONENT VIDEO INPUT [A] : DVD DVD, D-TV/CBL, VCR1, VCR2/DVR, V-AUX
[B] : D-TV/CBL D-TV/CBL, VCR1, VCR2/DVR, V-AUX
4B OPTICAL OUT (1) : MD/CD-R DVD, MD/CD-R, D-TV/CBL, VCR1, VCR2/DVR, V-AUX, PHONO, CD
4C OPTICAL IN (2) : MD/CD-R CD, MD/CD-R, DVD, D-TV/CBL, VCR1, VCR2/DVR, PHONO
(3) : DVD CD, DVD, D-TV/CBL, VCR1, VCR2/DVR, PHONO
(4) : D-TV/CBL CD, D-TV/CBL, VCR1, VCR2/DVR, PHONO
4D COAXIAL IN (5) : CD CD, MD/CD-R, DVD, D-TV/CBL, VCR1, VCR2/DVR, V-AUX, PHONO
5. INPUT MODE DVD : AUTO AUTO/LAST
6. DOLBY DIGITAL SET
6A LFE LEVEL SPEAKER : 0dB ­20dB -- 0dB
6B DYNAMIC RANGE SPEAKER : MAX MAX/STD/MIN
7. DTS SET
LFE LEVEL SPEAKER : 0dB ­10dB -- +10dB
8. SPEAKER DELAY TIME CENTER : 0ms 0ms -- 5ms (1ms step)
9. DISPLAY SET BLUE BACK : AUTO AUTO/OFF
OSD SHIFT : 0 ­5 -- +5
DIMMER : 0 ­4 -- 0
10. MEMORY GUARD OFF ON/OFF




s INTERNAL VIEW
q w er t y u i o !0
q POWER (1) P.C.B.
w MAIN (6) P.C.B.
e MAIN (5) P.C.B.
r POWER (4) P.C.B. (R, T only)
t MAIN (7) P.C.B. (B, G only)
y MAIN (3) P.C.B.
u OPERATION (3) P.C.B.
i OPERATION (5) P.C.B.
o AM/FM TUNER
!0 DSP P.C.B.
!1 POWER (5) P.C.B. (U, C, A, B, G, L only)
!2 OPERATION (9) P.C.B.
!3 POWER (2) P.C.B.
!4 POWER (6) P.C.B. (R, T only)
!5 MAIN (4) P.C.B.
!6 MAIN (1) P.C.B.
!7 POWER (3) P.C.B.
!8 MAIN (2) P.C.B.
RX-V620/HTR-5460




!1 !2 !3 !4 !5 !6 !7 !8 !9 @0
!9 INPUT (1) P.C.B.
RX-V620RDS




@0 INPUT (2) P.C.B.


7
RX-V620/HTR-5460/RX-V620RDS




s DISASSEMBLY PROCEDURES (Remove parts in the order as numbered.)

1. Removal of Top Cover
Remove 8 screws ( q and w ) and then remove the Top Cover in Fig. 1.

2. Removal of Front Panel Unit
a. Remove 9 screws ( e, r and t ) in Fig. 1.
b. Remove CB104, CB303 and ground wire.
c. Lift 2 hooks and then remove the Front Panel Unit in Fig. 1.


w
Top Cover




q w




e

q

Front Panel Unit




r


t
Hooks


Fig. 1

3. Removal of Sub Chassis Unit
Remove 4 screws ( y ) and then remove the Sub
Chassis Unit in Fig. 2.

4. Removal of DSP P.C.B.
u
a. Remove 4 screws ( u ) and then remove the Shield
Shield Case Cover
Case Cover in Fig. 3.
b. Remove 7 screws ( i and o ) and then remove the
DSP P.C.B. in Fig. 3.


Sub Chassis Unit u



i
u


i

DSP
RX-V620/HTR-5460




y y o
RX-V620RDS




Fig. 2 Fig.3


8
RX-V620/HTR-5460/RX-V620RDS



5. Removal of Input (1)/(2) P.C.B.
(Checking the Input (1)/(2) P.C.B. and Replacing Components)
a. Remove the DSP P.C.B.
b. Remove 3 screws ( !0 ) and then remove the AM/FM Tuner in Fig. 4.
c. Remove 2 screws ( !1 ) and then remove the Operation (5) P.C.B. in Fig. 4.
d. Remove 4 screws ( !2 ) and then remove the Operation (3) P.C.B. in Fig. 4.
e. Remove 7 screws ( !3 and !4 ) and then remove the Operation (2) P.C.B. in Fig. 4
and 5.
f. Remove 8 screws ( !5 and !6 ) and then remove the Input (1)/(2) P.C.B. in Fig. 4
and 5.
g. Place the INPUT (1)/(2) P.C.B. as shown in Fig. 6 and check them for operation.

Note :
When DSP P.C.B., INPUT (1) P.C.B., OPE (2)/(3)/(5) P.C.B., and AM/FM TUNER have been
removed from the rear panel, the ground connection becomes open. Connect the ground of
each P.C.B. to the chassis by using a lead wire.

OPE (3)


!3x6 !0x3 !1x2 !2x4

TUNER




!4

OPE (5)

OPE (2)




INPUT (2)
!5x7
Fig. 4 !6




INPUT (1)




Fig. 5



INPUT (2)
INPUT (1)




OPE (2)
Cloth
RX-V620/HTR-5460
RX-V620RDS




OPE (5)
OPE (3) DSP
Fig.6
AM/FM TUNER

9
RX-V620/HTR-5460/RX-V620RDS



6. Removal of Main Chassis
(Checking the Main (1) P.C.B. and Replacing Components)
a. Remove the Front Panel Unit.
b. Remove the Sub Chassis Unit.
c. Remove the DSP P.C.B.
d. Remove the AM/FM Tuner, Operation (5)/(3)/(2) P.C.B.
and Input (1)/(2) P.C.B.
e. Remove 6 screws ( !7, !8 and !9 ) and then remove the !8
Main (5)/Power (1) P.C.B. in Fig. 7 and 8.
f. Remove 4 screws ( @0 ) and then remove the Power
Transformer in Fig. 8.
!7
g. Remove 4 screws ( @1, @2 and @3 ) and then remove the
Main Chassis in Fig. 7 and 8.
h. Reinstall the removed P.C.B. to the Rear Panel and tighten
them with screws.
i. Set the Rear Panel and Front Panel upright as shown in Fig.
9. At this time, use a box or the like to keep them horizontal. @3 !8

In this state, check the MAIN (1) P.C.B. and each of the Fig. 7
other P.C.B. for operation.


!9
POWER (1)




MAIN (5)

MAIN (1)




@0




Fig.8

@1 @2


Use care so that the DSP Shield
Case and INPUT (1)/(2) P.C.B.
will not be shorted.




Rear Panel


Front Panel
RX-V620/HTR-5460
RX-V620RDS




Power Transformer Fig.9


10
RX-V620/HTR-5460/RX-V620RDS




s SELF DIAGNOSIS FUNCTION
This product has a built-in self diagnosis function (DIAG) to facilitate inspection, measurement and determination of a faulty
item, if any. There are 14 DIAG menu items each of which has sub-menu items.
Listed in the table below are menu items and sub-menu items.
(Start-up and operation of DIAG menu are executed by using the main unit and its remote control unit.)
No. DIAG menu Sub-menu Remote control code (key)
1 DSP THROUGH 1. ANALOG BYPASS 7A---88 (PRG 1)
2. M, C, R, SW ch 7A---89 (PRG 2)
3. Main HPF Check 7A---8A (PRG 3)
4. DSP Full Bit 7A---91 (PRG 10)
5. DSP Full Bit (F) 7A---92 (PRG 11)
6. DSP Full Bit -6dB 7A---03 (TAPE STOP)
2 FRONT CH 1. Front Normal 7A---8B (PRG 4)
2. Front Mix 7A---8C (PRG 5)
3 RAM THROUGH 1. 0dB (2ch/Multi) 7A---10 (PRESET +)
4 PRO LOGIC 1. YSS928 7A---8D (PRG 6)
5 MARGIN CHECK 1. MAIN 3dB margin 7A---11 (PRESET ­)
2. MAIN 12dB margin 7A---12 (P. PAGE)
3. MAIN 18dB margin 7A---0C (CD FW)
6 MAIN MIX 1. Center Main 7A---00 (TAPE PLAY)
2. SW Main 7A---8E (PRG 7)
7 OTHER INPUT 1. External Decoder 7A---8F (PRG 8)
8 DISPLAY CHECK 1. DISPLAY OFF 7A---01 (TAPE RW)
2. DISPLAY ALL 7A---02 (TAPE FW)
3. DISPLAY DIMMER(50%) ---------
4. CHECKED PATTERN 1 ---------
5. CHECKED PATTERN 2 ---------
9 MANUAL TEST 1. ALL 7A---90 (PRG 9)
2. MAIN L 7A---04 (TAPE PAUSE)
3. CENTER 7A---05 (TAPE MUTE)
4. MAIN R 7A---06 (TAPE A/B)
5. REAR R 7A---07 (TAPE DIR A)
6. REAR L 7A---08 (CD PLAY)
7. LFE 7A---09 (CD STOP)
10 FACTORY PRESET 1. INHIBIT (memory initialization inhibited) ---------
2. RESERVED (memory initialized) 7A---57 (SLEEP)
11 AD DATA CHECK 1. PANEL KEY0, 1 ---------
2. PANEL KEY2, PL ---------
3. DC PROTECTION, PS PROTECTION 7A---0B (CD SKIP ­)
12 IF STATUS 1. Inside status ---------
2. CH status 1 ---------
3. CH status 2 ---------
4. CH status 3 ---------
5. CH status 4 ---------
6. CH status 5 ---------
7. BSI-DD 1 ---------
8. BSI-DD 2 ---------
9. BSI-DD 3 ---------
10. BSI-DD 4 ---------
11. BSI-DTS 1 ---------
12. BSI-DTS 2 ---------
13. BSI-DTS 3 ---------
14. BSI-DTS 4 ---------
15. YSS928-1 ---------
16. YSS928-2 ---------
RX-V620/HTR-5460




17. YSS928-3 ---------
RX-V620RDS




13 DSP RAM CHECK 1. BUS CHECK 7A---0A (CD SKIP +)
14 VERSION/SUM A: P: 1. Version 7A---0D (CD REW)
2. SUM ALL/PROG ---------
11
RX-V620/HTR-5460/RX-V620RDS



q Starting DIAG
Press the "POWER" (STANDBY/ON) key of the main unit while pressing the "FM/AM" key and the "INPUT MODE"
key simultaneously, and DIAG will be activated.


q Starting DIAG in the protection cancel mode
If the protection function activates and causes hindrance to trouble diagnosis, disable the protection function as
described below, and it will be possible to enter the DIAG mode. (The protection function other than the excess
current detect function will be disabled.)

Press the "POWER" (STANDBY/ON) key while pressing the "FM/AM" key and the "INPUT MODE" key simulta-
neously. At this time, keep pressing the "FM/AM" key and the "INPUT MODE" for 3 seconds or longer.


In this mode, " SLEEP " in the FL display of the main unit flashes.

CAUTION!
Using this product with the protection function disabled may cause damage to itself. Use special care for this point
when using this mode.


q Canceling DIAG
Turn off the power by pressing the "POWER" (STANDBY/ON) key of the main unit or the "STANDBY" key of the
remote control unit.

CAUTION: When canceling this function, check that DIAG menu No.10 FACTORY PRESET (memory initialization
inhibited/reserved) has been set. [To keep the user memory, be sure to select "INHI" (initialization inhibited) from the
No.10 PRESET menu before canceling the DIAG function.]



q Display at the start of DIAG
The diagnostic menu appears on the monitor screen. (It remains on the display until it is canceled.)



DIAGNOSTIC MENU
1.DSP THR 8.DISP CHECK
2.FRONT CH 9.MANL TEST
3.RAM THR 10.PRESET
4.PRO LOGIC 11.AD DATA
5.MARGIN 12.STATUS
6.MAIN MIX 13.DSP RAM
7.OTHER INP 14.VER/SUM




On the FL display of the main unit, an opening message (including the version and the protection history) appears
for a few seconds followed by the diagnostic menu display of 1. ANALOG BYPAS.

Opening message
When there is no protection Version (1 alphabet)
After a few
history (*1) seconds
DIAG menu display


NO PROTECT X 1.ANALOG BYPAS


(*1) If a protection function history has been recorded, the
type of the protection function and the voltage value
recorded last are displayed.
RX-V620/HTR-5460
RX-V620RDS




12
RX-V620/HTR-5460/RX-V620RDS



If the protection function activates after DIAG has been started and the power is turned off ;
When the protection function (*2) activates, the protection function history appears on the display and the power
turns off. Repair the faulty parts according to the displayed history.

(*2) When an excess current or any other faulty condition is found with the power source, DC, etc., the protection
function forces the power to turn off.


I PROTECT display
I PROTECT X (When the power is turned on without this abnormality corrected, the pro-
tection function activates the moment the power relay is turned on to shut
off the power relay. The display will not light.)
Cause: There is an abnormal current flow to the power amplifier.
Supplementary information: As the current of the power transistor of
each channel is detected, the abnormal channel can be identified by
checking the current detect transistor.

PS PRT display
PS PRT :000 X (When the power is turned on without this abnormality corrected, the
protection function activates about 1 second later to shut off the power
relay. Display may not light if there is an abnormality with the power supply
for the display.)
Cause: There is an abnormality in the power supply section (voltage).
Supplementary information: As the power from the following sources is
detected, it is possible to determine where an abnormality exists.
Main (5): Transformer secondary winding
CB373 (AC voltage)

Power (3): Regulated power supplies
±12, ±5V, +5D

DC PRT display
DC PRT :000 X (When the power is turned on without this abnormality corrected, the pro-
tection function activates about 3 seconds later to shut off the power relay.)
Cause: A DC output from the power amplifier of any channel is detected.




Besides the above possible causes, the cause may be a disconnected connector or around the CPU.
PS PRT and DC PRT displays include the abnormal A/D value in % (voltage value obtained by considering 5V as
100%). Concerning this value, refer to DIAG menu No.11 AD DATA CHECK described on page 26.




q Protection history
When the protection function has activated, its history is stored in memory with a memory backup. Even when no abnormality is
noted while the unit is being serviced, an abnormality which has occurred previously can be defined as long as the backup data has
been stored. The protection history should always be cleared before returning the unit from service.
The protection history is cleared when DIAG is canceled by selecting "RSRV" (memory initialization) from the setting items of the
DIAG menu No.10