Yamaha HTR-2064 Service Manual

HOME THEATER PACKAGE

YHT-196

RECEIVER /

SPEAKERS

HTR-2064 /

NS-B20/NS-C20/NS-SWP20

SERVICE MANUAL

The YHT-196 consists of the HTR-2064, NS-B20, NS-C20 and NS-SWP20.

Note:

• When the following parts are replaced, the destination MUST be written to the back-up IC (EEPROM: IC222 on DIGITAL P.C.B.) to have proper operation. (For details, refer to No. 22 SOFT SWITCH menu of the self-diagnostic function.)

DIGITAL P.C.B. EEPROM: IC222 on DIGITAL P.C.B.

• When the power amplifier IC (IC 1 or IC 2 on MAIN P.C.B.) requires to be replaced, be sure to refer to “POWER AMPLIFIER IC REPLACEMENT” before its replacement.

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 speciﬁ cally YAMAHA Products, are already known and understood by the users, and have therefore not been restated.

WARNING:

IMPORTANT:

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 speciﬁ cations are subject to change without notice or obligation to retroﬁ t. Should any discrepancy appear to exist, please contact the distributor's Service Division.

WARNING:

IMPORTANT:

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 speciﬁ ed. 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.

The presentation or sale of this manual to any individual or ﬁ rm does not constitute authorization, certiﬁ cation or

recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.

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).

Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.

NS-C20/NS-SWP20

HTR-2064/NS-B20/

■ CONTENTS

TO SERVICE PERSONNEL ............................................ 2

SYSTEM COMPOSITION ................................................3

FRONT PANELS .........................................................3–4

REAR PANELS ........................................................... 5–7

REMOTE CONTROL PANEL .......................................... 8

SPECIFICATIONS ..................................................... 8–14

INTERNAL VIEW .......................................................... 15

SERVICE PRECAUTIONS ............................................ 15

POWERAMPLIFIER IC REPLACEMENT ............... 16–17

DISASSEMBLY PROCEDURES ............................. 18–20

UPDATING FIRMWARE ..........................................21–23

101227

This manual is copyrighted by YAMAHA and may not be copied or

redistributed either in print or electronically without permission.

SELF-DIAGNOSTIC FUNCTION ...........................24–46

DISPLAY DATA ....................................................... 47–48

IC DATA ................................................................... 49–60

PIN CONNECTION DIAGRAMS .............................61–62

BLOCK DIAGRAM ........................................................63

PRINTED CIRCUIT BOARDS ................................. 64–76

SCHEMATIC DIAGRAMS .......................................77–84

REPLACEMENT PARTS LIST ................................ 85–92

REMOTE CONTROL ...............................................93–94

ADVANCED SETUP ...................................................... 95

P.O.Bo 1, Hamamatsu, apan

'11.12

HTR-2064/NS-B20/NS-C20/NS-SWP20

■ TO SERVICE PERSONNEL

1. Critical Components Information Components having special characteristics are marked ⚠ and must be replaced with parts having specifications equal to those originally installed.

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.

• Meter impedance should be equivalent to 1500 ohms shunted by 0.15 F.

For U model

“CAUTION”

“F1501: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 6A,

125V FUSE.”

For C model

CAUTION

F1501: REPLACE WITH SAME TYPE 6A, 125V FUSE.

ATTENTION

F1501: UTILISER UN FUSIBLE DE RECHANGE DE MÉME TYPE DE 6A, 125V.

WALL

OUTLET

• Leakage current must not exceed 0.5mA.

• Be sure to test for leakage with the AC plug in both polarities.

EQUIPMENT

UNDER TEST

INSULATING

TABLE

AC LEAKAGE

TESTER OR

EQUIVALENT

WARNING: CHEMICAL CONTENT NOTICE!

This product contains chemicals known to the State of California to cause cancer, 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.

HTR-2064/NS-B20/

NS-C20/NS-SWP20

About lead free solder

All of the P.C.B.s installed in this unit and solder joints are soldered using the lead free solder. Among some types of lead free solder currently available, it is recommended to use one of the following types for the

repair work.

• Sn + Ag + Cu (tin + silver + copper)

• Sn + Cu (tin + copper)

• Sn + Zn + Bi (tin + zinc + bismuth)

Caution:

As the melting point temperature of the lead free solder is about 30°C to 40°C (50°F to 70°F) higher than that of the lead solder, be sure to use a soldering iron suitable to each solder.

■ SYSTEM COMPOSITION

The YHT-196 consists of the HTR-2064, NS-B20 x4, NS-C20 x1 and NS-SWP20 x1.

YHT-196

HTR-2064 x 1

NS-B20 x 4

NS-C20 x 1

HTR-2064/NS-B20/NS-C20/NS-SWP20

NS-SWP20 x 1

■ FRONT PANELS

Top view

Front view

(U, C, R, A, B, G, F, L models)

HTR-2064

NS-C20/NS-SWP20

HTR-2064/NS-B20/

HTR-2064/NS-B20/NS-C20/NS-SWP20

NS-B20

NS-SWP20

Front view

NS-B20/NS-C20/NS-SWP20

NS-C20

Side view

HTR-2064/NS-B20/

NS-C20/NS-SWP20

■ REAR PANELS

U, C models

HTR-2064/NS-B20/NS-C20/NS-SWP20

HTR-2064

R model

A model

NS-C20/NS-SWP20

HTR-2064/NS-B20/

HTR-2064/NS-B20/NS-C20/NS-SWP20

B, G, F models

L model

HTR-2064/NS-B20/

NS-C20/NS-SWP20

NS-B20

HTR-2064/NS-B20/NS-C20/NS-SWP20

NS-B20/NS-C20/NS-SWP20

NS-C20

NS-SWP20

U model

NS-C20/NS-SWP20

HTR-2064/NS-B20/

HTR-2064/NS-B20/NS-C20/NS-SWP20

■ REMOTE CONTROL PANEL

RAV435

(U, C, R, A, B, G, F, L models)

■ SPECIFICATIONS

HTR-2064

■ Audio Section

Rated Output Power (0.9 % THD, 6 ohms)

– 2 channel driven – (U, C models)

FRONT L/R (1 kHz) ........................................80 W + 80 W

CENTER (1 kHz) ........................................................ 80 W

SURROUND L/R (1 kHz) ................................80 W + 80 W

SUBWOOFER (50 Hz) ...............................................80 W

– 1 channel driven –

FRONT L/R (1 kHz) ............................................. 100 W/ch

CENTER (1 kHz) ...................................................... 100 W

SURROUND L/R (1 kHz) ..................................... 100 W/ch

SUBWOOFER (50 Hz) .............................................100 W

Maximum Effective Output Power (1 channel driven, JEITA)

(10 % THD, 6 ohms) [R, L models]

FRONT L/R (1 kHz) ......................................135 W + 135 W

CENTER (1 kHz) ......................................................... 135 W

SURROUND L/R (1 kHz) ..............................135 W + 135 W

SUBWOOFER (50 Hz) ................................................ 135 W

Dynamic Power Per Channel (1 channel driven, IHF)

FRONT L/R

U, C models

6/4/2 ohms ............................................... 130/160/180 W

R, A, B, G, F, L models

6/4/2 ohms ............................................... 105/130/150 W

HTR-2064/NS-B20/

NS-C20/NS-SWP20

Dynamic Headroom [U, C models]

6 ohms .....................................................................0.23 dB

Input Sensitivity/Input Impedance (1 kHz, 100 W / 6 ohms)

AUDIO5, etc. ........................................ 200 mV / 47 k-ohms

Maximum Input Signal (1 kHz, 0.5 % THD, Effect on)

AUDIO5, etc. ................................................................ 2.3 V

Output Level/Output Impedance

SUBWOOFER (2 ch STEREO and FRONT speaker: Small)

................................................................. 1 V / 1.2 k-ohms

Headphone Jack Rated Output/Impedance (1 kHz, 50 mV)

AUDIO5, etc. input ................................ 100 mV / 470 ohms

Frequency Response (10 Hz to 100 kHz)

AUDIO5, etc. to FRONT L/R .................................0 / -3.0 dB

Total Harmonic Distortion (1 kHz, 50 W, 6 ohms)

AUDIO5, etc. (straight) to FRONT speaker out

.....................................................................0.06 % or less

Signal to Noise Ratio (IHF-A Network)

AUDIO5, etc. (STEREO)

Input shorted (250 mV) to speaker out ....... 98 dB or more

Residual Noise (IHF-A Network)

FRONT L/R to speaker out ..............................150 µV or less

Channel Separation

AUDIO5, etc. (Input 5.1 k-ohms shorted, 1 kHz / 10 kHz)

.......................................... 60 dB or more / 45 dB or more

Volume Control

............................ MUTE / -80 dB to +16.5 dB / 0.5 dB step

HTR-2064/NS-B20/NS-C20/NS-SWP20

Tone Control Characteristics * FRONT L/R channel only

BASS

Boost/Cut ............................... ±6 dB / 0.5 dB step / 50 Hz

Turnover frequency ................................................. 350 Hz

TREBLE

Boost/Cut ..............................±6 dB / 0.5 dB step / 20 kHz

Turnover frequency ................................................ 3.5 kHz

Filter Characteristics

FRONT, CENTER, SURROUND (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.

■ FM Section

Tuning Range

U, C models ............................................ 87.5 to 107.9 MHz

R, L models ................. 87.5 to 108.0 / 87.50 to 108.00 MHz

A, B, G, F models ................................87.50 to 108.00 MHz

50 dB Quieting Sensitivity (IHF) (1 kHz, 100 % Mod.)

Mono ............................................................ 3 µV (20.8 dBf)

Signal to Noise Ratio (IHF)

Mono / Stereo ................................................. 72 dB / 70 dB

Harmonic Distortion (1 kHz)

Mono / Stereo ..................................................0.3 % / 0.5 %

Dimensions (W x H x D)

........................ 435 x 151 x 315 mm (17-1/8" x 6" x 12-3/8")

Weight

.................................................................. 7.3 kg (16.1 lbs.)

Finish

U, C, R, A, B, G, F, L models .............................. Black color

Accessories

Remote control .................................................................x 1

Batteries (R03, AAA, UM-4) ...............................................x 2

FM antenna (1.4 m) ..........................................................x 1

* Specifications are subject to change without notice.

Manufactured under license from Dolby Laboratories. “Dolby,” “Pro Logic,” and the double-D symbol are trademarks of Dolby Laboratories.

DTS, the Symbol, & DTS and the Symbol together are registered trademarks & DTS Digital Surround and the DTS logos are trademarks of DTS, Inc.

Antenna Input

............................................................ 75 ohms unbalanced

■ General

Power Supply

U, C models ............................................... AC 120 V, 60 Hz

R model ...........................AC 110–120/220–240 V, 50/60 Hz

A model ...................................................... AC 240 V, 50 Hz

B, G, F models ........................................... AC 230 V, 50 Hz

L model ......................................... AC 220–240 V, 50/60 Hz

Power Consumption

U, C models .................................................250 W / 320 VA

R, A, B, G, F, L models ............................................... 250 W

Standby Power Consumption

U, C, A, B, G, F, L models ................................0.5 W or less

R model ............................................................1.0 W or less

Maximum Power Consumption

................................................................................... 440 W

“HDMI”, the “HDMI” logo and “High-Definition Multimedia Interface” are trademarks, or registered trademarks of HDMI Licensing LLC.

“SILENT CINEMA” is a trademark of Yamaha Corporation.

NS-C20/NS-SWP20

HTR-2064/NS-B20/

HTR-2064/NS-B20/NS-C20/NS-SWP20

NS-B20/NS-C20/NS-SWP20

■ NS-B20/NS-C20

Type ......Full-range acoustic suspension speaker system

Non-magnetic shielding type

Driver

Full-range ........................... 7 cm (2-3/4") cone type x 1

Frequency Response

[NS-B20] ................................70 Hz to 25 kHz (-10 dB)

to 45 kHz (-30 dB)

[NS-C20] ................................65 Hz to 25 kHz (-10 dB)

to 45 kHz (-30 dB)

Impedance .............................................................6 ohms

Nominal Input .......................................................... 30 W

Maximum Input ...................................................... 100 W

Sensitivity

[NS-B20] ................................................ 83 dB/2.83 V/m

[NS-C20] ................................................ 84 dB/2.83 V/m

Input Terminal ...................................................Push type

Dimensions (W x H x D)

[NS-B20] ...........................115 mm x 176 mm x 88 mm

(4-1/2" x 6-7/8" x 3-1/2")

[NS-C20] ......................... 291 mm x 101 mm x 103 mm

(11-1/2" x 4" x 4")

Weight

[NS-B20] ............................................0.48 kg (1.06 lbs.)

[NS-C20] ............................................0.68 kg (1.50 lbs.)

■ General

Finish

U, C, R, A, B, G, F, L models .............................. Black color

Accessory

Speaker cable (25 m) ................................................x 1

Nonskid pad (NS-B20/NS-C20) ................................x 24

* Specifications are subject to change without notice.

U ........................U.S .A. model

C ..................Canadian model

R .....................General model

A .................Australian model

B .......................British model

G ..................European model

F..................... Russian model

L..................Singapore model

• DIMENSIONS

HTR-2064

ø 60

Top view

(1-3/4")

(7/8")

■ NS-SWP20

Type ...................................... Bass reflex speaker system

Driver

Subwoofer ........................ 16 cm (6-1/2") cone type x 1

HTR-2064/NS-B20/

NS-C20/NS-SWP20

Frequency Response ...............30 Hz to 2 kHz (-10 dB)

Impedance .............................................................6 ohms

Nominal Input .......................................................... 30 W

Maximum Input ...................................................... 100 W

Sensitivity ............................................... 86 dB/2.83 V/m

Input Terminal ...................................................Push type

Dimensions (W x H x D)

........................................262 mm x 264 mm x 287 mm

Weight ...................................................5.2 kg (11.5 lbs.)

Non-magnetic shielding type

to 9 kHz (-30 dB)

(10-3/8” x 10-3/8” x 11-1/4”)

170 (6-5/8")

(2")

(2-1/4")

Front view

335 (13-1/4")

435 (17-1/8")

315 (12-3/8")

274 (10-3/4")

(3/4")

151 (6")

130 (5-1/8")

(7/8")

Unit: mm (inch)

NS-B20

57.5 (2-1/4")

85.7 (3-3/8")90 (3-1/2")

HTR-2064/NS-B20/NS-C20/NS-SWP20

NS-B20/NS-C20/NS-SWP20

Unit: mm (inch)

Rear view

115 (4-1/2")

Side view

ø 5 (1/4") ø 10 (3/8")

176 (6-7/8")101 (4")

(2-3/4")

A screw with a diameter of 5 mm can be used. [Hole depth: 12 mm (1/2")]

NS-C20

Rear view

291 (11-1/2")

150 (5-7/8")

ø 5 (1/4")

50.5

(2")

66.5

(2-5/8")

145.5 (5-3/4")

74.5 (2-7/8")

A screw with a diameter of 5 mm can be used. [Hole depth: 12 mm (1/2")]

42.5 (1-5/8")

ø 10 (3/8")

NS-SWP20

Front view Side view

262 (10-3/8") 287 (11-1/4")

262 (10-3/8")25 (1")

88 (3-1/2")

Side view

100 (3-7/8")3 (1/8")

103 (4")

NS-C20/NS-SWP20

HTR-2064/NS-B20/

20 (3/4")

ø 32 (1-1/4")

221 (8-3/4")

264 (10-3/8")

262 (10-3/8")

1.5 (1/16")

20 (3/4")

221 (8-3/4")

20 (3/4")

HTR-2064/NS-B20/NS-C20/NS-SWP20

• SELECT MENU Sound field parameters

Parameter

MOVIE

MUSIC

STEREO

MUSIC ENHANCER

SUR. DECODE SUR. DECODE

STRAIGHT

HTR-2064/NS-B20/

NS-C20/NS-SWP20

: Setting is possible only when Pro Logic II Music is selected using decode type.

△

Category Program

Standard

Spectacle

Sci-Fi

Adventure

Drama

Mono Movie

Sports

Action Game

Roleplaying Game

Hall in Munich

Hall in Vienna

Chamber

Cellar Club

The Roxy Theatre

The Bottom Line

Music Video

2ch Stereo

5ch Stereo

Straight Enhancer

5ch Enhancer

Decode Type

DSP Level: -6dB to +3dB, [0 dB]

Center Level: 0 to 100%, [100%]

Surround L Level: 0 to 100%, [100%]

Surround R Level: 0 to 100%, [100%]

Direct: Auto/Off, [Auto]

Effect Level: High/Low, [High]

Panorama: On/Off, [Off]

Center Width: 0 to 7, [3]

Dimension: -3 to +3, [0]

Initialize

●●

●●● ●

●●

●

△●

*1 Decode Type

Decode Type

Dolby Pro Logic Dolby PL II Movie Dolby PL II Music Dolby PL II Game

HTR-2064/NS-B20/NS-C20/NS-SWP20

• SET MENU TABLE

MAIN MENU SUB-MENU PARAMETER VALUE [INITIAL VALUE]

1 Speaker Setup

2 Sound Setup

3 HDMI Setup

4 Function Setup

1 Config Subwoofer [Yes] / None

2 Level FL (Front speaker L)

3 Distance

4 Equalizer EQ Type Select [GEQ] / Off

5 Test Tone [Off] / On

1 Lipsync HDMI Auto Off / [On]

2 Adaptive DRC [Off] / On 3 D.Range Min / Std / [Max] 4 Max Volume -30.0 to +15.0 dB / +16.5 dB (Maximum volume),

5 Init. Volume Off, Mute, -80 dB to +16.5 dB [Off], 0.5 dB step

1 Control [Off] / On 2 TV Audio AUDIO1 / AUDIO2 / AUDIO3 / [AUDIO4] / AUDIO5 /

3 ARC Off / [On] 4 Audio [Amp] / TV / Amp+TV

1 Input Rename Input is possible to 9 characters

2 Auto Power Down U, C, R, A, L models: [Off] / 4 hours / 8 hours / 12 hours

3 Dimmer -4 to 0, [0]

Front speaker [Small] / Large Center speaker Surround speaker L/R Crossover 40 / 60 / 80 / 90 / 100 / 110 / 120 / [160] / 200 Hz Subwoofer Phase [NRM] / REV Extra Bass [Off] / On

FR (Front speaker R) C (Center speaker)

SR (Surround speaker R) SWFR (Subwoofer) -10.0 to +10.0 dB, [0 dB], 0.5 dB step

Unit

Front L (Front speaker L) 0.30 to 24.00 m, [3.00 m], 0.1 m step Front R (Front speaker R) Center (Center speaker) 0.30 to 24.00 m, [2.60 m], 0.1 m step

Sur. L (Surround speaker L) 0.30 to 24.00 m, [2.40 m], 0.1 m step Sur. R (Surround speaker R) SWFR (Subwoofer) 0.30 to 24.00 m, [3.00 m], 0.1 m step

GEQ * “GEQ” is available only when “EQ Type Select” is set

Front L 63 Hz ···········||··········· 0 dB Front R 160 Hz ···········||··········· 0 dB Center 400 Hz ···········||··········· 0 dB Sur. L 1 kHz ···········||··········· 0 dB Sur. R 2.5 kHz ···········||··········· 0 dB

6.3 kHz ···········||··········· 0 dB 16 kHz ···········||··········· 0 dB

Auto 0 to 240 ms, 1 ms step Manual 0 to 240 ms, [0 ms], 1 ms step

None / [Small] / Large

-10.0 to +10.0 dB, [0 dB], 0.5 dB step

-10.0 to +10.0 dB, [-1.0 dB], 0.5 dB stepSL (Surround speaker L)

U, C models: meters (m) / [feet (ft)] R, A, B, G, F, L models: [meters (m)] / feet (ft)

1.0 to 80.0 ft, [10.0 ft], 0.5 ft step

1.0 to 80.0 ft, [8.5 ft], 0.5 ft step

1.0 to 80.0 ft, [8.0 ft], 0.5 ft step

1.0 to 80.0 ft, [10.0 ft], 0.5 ft step

to “GEQ”.

-6.0 to +6.0 dB, [0 dB], 0.5 dB step

[+16.5 dB], 5.0 dB step

AUDIO6

Input possible Character type

Capital : A to Z Small : a to z Figure : 0 to 9 Symbols : # * + , - etc. Space

B, G, F models: Off / 4 hours / [8 hours] / 12 hours

NS-C20/NS-SWP20

HTR-2064/NS-B20/

HTR-2064/NS-B20/NS-C20/NS-SWP20

MAIN MENU SUB-MENU PARAMETER VALUE [INITIAL VALUE]

5 DSP Parameter

MUSIC ENHANCER Straight Enhancer [7], [11]

MOVIE Standard

Spectacle Sci-Fi Adventure Drama Mono Movie Sports Action Game Roleplaying Game

MUSIC Hall in Munich

Hall in Vienna Chamber Cellar Club The Roxy Theatre The Bottom Line Music Video

STEREO 2ch Stereo [6], [11]

5ch Stereo [3], [4], [5], [11]

5ch Enhancer [7], [11]

SUR. DECODE SUR. DECODE [1], [8], [11]

STRAIGHT

[2], [11]

6 Memory Guard [Off] / On

HTR-2064/NS-B20/

NS-C20/NS-SWP20

[1] Decode Type

[2] DSP Level -6 to +3 dB, [0 dB] [3] Center Level [4] Surround L Level 0 to 100 %, [100 %] [5] Surround R Level [6] Direct [Auto] / Off [7] Effect Level [High] / Low [8] Panorama [Off] / On

[9] Center Width 0 to 7, [3] [10] Dimension -3 to +3, [0] [11] Initialize

Dolby Pro Logic, Dolby PL II Movie, Dolby PL II Music, Dolby PL II Game, Neo:6 Cinema, Neo:6 Music

■ INTERNAL VIEW

Top view

HTR-2064/NS-B20/NS-C20/NS-SWP20

Front view

12 13 14

3524 6

OPERATION (3) P.C.B.

MAIN (2) P.C.B. (R model)

MAIN (1) P.C.B.

FM TUNER

DIGITAL P.C.B.

OPERATION (4) P.C.B.

MAIN (3) P.C.B.

OPERATION (9) P.C.B.

OPERATION (2) P.C.B.

OPERATION (8) P.C.B.

POWER TRANSFORMER

OPERATION (7) P.C.B.

OPERATION (1) P.C.B.

OPERATION (6) P.C.B.

OPERATION (5) P.C.B.

■ SERVICE PRECAUTIONS

Safety measures

• Some internal parts in this product contain high voltages and are dangerous. Be sure to take safety measures during servicing, such as wearing insulating gloves.

• Note that the capacitors indicated below are dangerous even after the power is turned off because an electric charge remains and a high voltage continues to exist there. Before starting any repair work, connect a discharging resistor (5 k-ohms/10 W) to the terminals of each capacitor indicated below to discharge electricity. The time required for discharging is about 30 seconds per each.

C1318–C1320 on OPERATION (2) P.C.B. C55, C56 on MAIN (1) P.C.B.

NS-C20/NS-SWP20

HTR-2064/NS-B20/

For details, refer to “PRINTED CIRCUIT BOARDS”.

HTR-2064/NS-B20/NS-C20/NS-SWP20

■ POWER AMPLIFIER IC REPLACEMENT

In the middle of production, the power amplifier IC has been changed from Y type to N type. At the same time, their peripheral electrical parts also have been altered.

Y type: Parts No. X8190B00 STK433-330Y-E Initial production N type: Parts No. YD936A00 STK433-330N-E Middle production and after

Service replacement part

Therefore, when replacing Y type with N type, their peripheral electrical parts also MUST be altered at the same time.

Replacement procedure

Perform the following procedure according to the type name of installed power amplifier IC.

Top view

Rear side

HTR-2064/NS-B20/

NS-C20/NS-SWP20

IC1

Fig. 1

STK433-330

119

Fig. 2

MAIN (1) P.C.B.

IC2

Front side

When “Y” is printed

<IC1> Remove C25, C29 and C33. Replace R23 with 4.7 k-ohms. Replace IC1 with N type.

<IC2> Remove C24, C31 and C34. Replace R25 with 4.7 k-ohms. Replace IC2 with N type.

When “N” is printed

Replace IC1/IC2 with N type.

MAIN (1) P.C.B. top view

HTR-2064/NS-B20/NS-C20/NS-SWP20

C29C33

IC1 IC2

MAIN (1) P.C.B. bottom view

Schematic diagrams

IC2

R25

C24C31C34C25

R23

IC1

Fig. 3

IC1

C25

R23

C29

C33

Fig. 4

IC2

C24

R25

C31

C34

NS-C20/NS-SWP20

HTR-2064/NS-B20/

HTR-2064/NS-B20/NS-C20/NS-SWP20

■ DISASSEMBLY PROCEDURES

(Remove parts in the order as numbered.) Disconnect the power cable from the AC outlet.

1. Removal of Top Cover

a. Remove 5 screws (①) and 4 screws (②). (Fig. 1) b. Slide the top cover rearward to remove it. (Fig. 1)

2. Removal of Front Panel Unit

a. Remove 7 screws (③). (Fig. 1) b. Remove CB166, CB193 and CB221. (Fig. 1) c. Unlock and remove CB136. (Fig. 1) d. Release hook and then remove the front panel unit. (Fig. 1)

Remove CB136 and CB262

Connected

Unlock the connector

①

Remove the cable

②

①①

②

Top cover

①

HTR-2064/NS-B20/

NS-C20/NS-SWP20

Cable

Connect CB136 and CB262

Lock the connector

Connected

①

Insert the cable

②

①①

Cable

②

CB136

Front panel unit

②

CB221

CB166

③

CB193

③

Hook

③

Fig. 1

HTR-2064/NS-B20/NS-C20/NS-SWP20

3. Removal of DIGITAL P.C.B.

a. Remove CB222 and CB223. (Fig. 2) b. Unlock and remove CB262. (Fig. 2) c. Remove screw (④). (Fig. 2) d. Remove screw (⑤) and 4 screws (⑥). (Fig. 3) e. Remove the DIGITAL P.C.B. which is connected directly to the OPERATION (4) P.C.B. with board-to-board connectors.

(Fig. 2)

4. Removal of OPERATION (4) P.C.B.

a. Remove screw (⑦). (Fig. 3) b. Remove screw (⑧). (Fig. 2) c. Remove the OPERATION (4) P.C.B. which is connected directly to the MAIN (1) P.C.B. with board-to-board connectors.

(Fig. 2)

DIGITAL P.C.B.

OPERATION (4) P.C.B.

CB223

CB222

OPERATION (4) P.C.B.

MAIN (1) P.C.B.

Fig. 2

CB262

CB191

DIGITAL P.C.B.

CB264

④

⑧

CB22

CB263

Board-to-board connectors

CB196

CB195

CB192

CB21

Board-to-board connectors

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HTR-2064/NS-B20/

⑥

⑦

⑤

⑨

Fig. 3

HTR-2064/NS-B20/NS-C20/NS-SWP20

When checking the DIGITAL P.C.B.

• Put the rubber sheet and cloth over this unit, and place the DIGITAL P.C.B. on them. (Fig. 4)

• Connect ST201 on DIGITAL P.C.B. to the chassis with a ground lead or the like. (Fig. 4)

• Reconnect all cables (connectors) that have been disconnected. Be sure to use the P.C.B. CHECKING JIG (Part No. WW483800) to connect between the following connectors. CB263 on DIGITAL P.C.B. – CB196 on OPERATION (4) P.C.B. CB264 on DIGITAL P.C.B. – CB195 on OPERATION (4) P.C.B.

• When connecting the flexible flat cable, be careful with polarity.

DIGITAL P.C.B.

CB263

CB264

P.C.B. CHECKING JIG

OPERATION (4) P.C.B.

When checking the MAIN (1) P.C.B.

a. Remove the top cover. (Fig. 1) b. Remove 3 screws (⑨). (Fig. 3) c. Remove 5 screws (⑩) and 4 screws (⑪). (Fig. 5) d. Place the P.C.B.s (with rear panel) upright. (Fig. 6) e. Connect the heatsink, rear panel and MAIN (1) P.C.B. (G3) to the chassis with a ground lead or the like. (Fig. 6)

HTR-2064/NS-B20/

NS-C20/NS-SWP20

Rubber sheet and cloth

⑪⑩

ST201

Ground lead

Fig. 4

CB195

Chassis

Rear panel

CB196

Ground lead

Chassis

⑩⑩

MAIN (1) P.C.B.

Heatsink

Ground lead

Fig. 6Fig. 5

HTR-2064/NS-B20/NS-C20/NS-SWP20

■ UPDATING FIRMWARE

When the following parts are replaced, the firmware must be updated to the latest version.

DIGITAL P.C.B. DSP FLASH ROM (IC243 on DIGITAL P.C.B.)

● Confirmation of firmware version and checksum

Before and after updating the firmware, check the firmware version and checksum by using the self-diagnostic function menu.

Start up the self-diagnostic function and select “25. ROM VER/SUM/PORT” menu. Using the sub-menu, have the firmware version and checksum displayed, and note them down.

(For details, refer to “SELF-DIAGNOSTIC FUNCTION”) * When the firmware version is different from written one after updating, perform the updating procedure from the

beginning again.

● Initializing the back-up IC (EEPROM: IC222 on DIGITAL P.C.B.)

After updating the firmware, the back-up IC MUST be initialized by the following procedure to store the setting information (soundfield parameters, system memory and tuner presetting, etc.) properly.

Start up the self-diagnostic function and select “24. FACTORY PRESET” menu. (For details, refer to “SELF-DIAGNOSTIC FUNCTION”)

Select “24. PRESET RSRV”, press the “ the back-up IC is initialized.

” (Power) key to turn off the power once and turn on the power again. Then

● Required Tools

• CD, DVD or BD player (with DIGITAL OUTPUT (OPTICAL or COAXIAL) jack) * The following models can be used as a tool to update the firmware.

CD player: CD-C600/CD-S1000/CD-S2000/CD-S300/CD-S700/CDX-496/CDX-596/CDX-890 DVD player: DV-C6760/DVD-840/DVD-C740/DVD-C750/DVD-C940/DVD-C950/DVD-CX1/DVD-S1200/DVD-S1800/

DVD-S2300(MKII)/DVD-S2700/DVD-S30/DVD-S510/DVD-S520/DVD-S530/DVD-S540/DVD-S550/

DVD-S657/DVD-S700/DVD-S80/DVD-S840 BD player: BD-940/BD-S1065/BD-S1900/BD-S2900/BD-S671 Others: CDR-D651/CDR-HD1000/CDR-HD1300/CDR-HD1500/DV-SL100/CDX-E100/CRX-430/CRX-E150/

RDX-E700

• Optical cable (when OPTICAL jack is used)

• Digital audio pin cable (when COAXIAL jack is used)

NS-C20/NS-SWP20

HTR-2064/NS-B20/

• Firmware CD Download the latest firmware from the specified download source and create the firmware CD.

HTR-2064/NS-B20/NS-C20/NS-SWP20

● Connection

Connect a CD/DVD/BD player to this unit as shown below. (Fig. 1)

Example of connection between digital OPTICAL jacks

This unit

CD/DVD/BD player

Optical cable

Example of connection between digital COAXIAL jacks

HTR-2064/NS-B20/

NS-C20/NS-SWP20

This unit

CD/DVD/BD player

Digital audio pin cable

Fig. 1

● Operation Procedures

1. While pressing the “INFO” key, connect the power cable to the AC outlet. (Fig. 2) The FIRMWARE UPDATE mode is activated and “CDDA Upgrader” is displayed. (Fig. 2)

"INFO" key

Display

CDDAUpgrader

Fig. 2

HTR-2064/NS-B20/NS-C20/NS-SWP20

2. Play the firmware CD on the CD/DVD/BD player. Writing of the firmware starts automatically. (Fig. 3)

3. When writing of the firmware is completed, “Update Success”, “Please...” and “Power off!!” are displayed repeatedly. (Fig. 3)

Writing is started Writing is completed

XXXXXXXXXX UpdateSuccess

XXXXXX

: Received data

Please...

Poweroff!!

Fig. 3

* If the display remains unchanged for more than 10 seconds after starting the firmware CD play procedure,

perform the firmware CD play procedure again from the beginning. If “FILE CORRUPTED” is displayed after “Address:XXXXXX”, make sure that the data written to the firmware CD

is not corrupted and perform Steps 1 to 3 of “Operation Procedures” again. If “Upgrade Failed” is displayed, perform “operation procedures” from the beginning again.

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HTR-2064/NS-B20/

4. Press the “

” (Power) key to turn off the power.

5. Eject the firmware CD from the CD/DVD/BD player.

6. Start up the self-diagnostic function and check that the firmware version and checksum are the same as written ones. (See “Confirmation of firmware version and checksum”)

HTR-2064/NS-B20/NS-C20/NS-SWP20

■ SELF-DIAGNOSTIC FUNCTION

This unit has self-diagnostic functions that are intended for inspection, measurement and location of faulty point. There are 26 main menu items, each of which has sub-menu items. Listed in the table below are main menu items and sub-menu items.

Note: Some of the menu items listed below may not apply to the models covered in this service manual.

No. Main menu Sub-menu

1 BYPASS 1 ANALOG BYPASS 2 RAM THROUGH 1 RAM MARGIN

3 HDMI AUDIO 1 SPDIF

4 SPEAKERS SET 1 FRONT: SML 0dB

5 LIMITER CONTROL (Not for service) 1 AC_B: Hi

6 NO MENU Invalidity 7 VFD CHECK 1 INITIAL DISPLAY

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NS-C20/NS-SWP20

8 MANUAL TEST 1 TEST ALL 9 AD DATA CHECK 1 PS/DC

10 VIDEO CHECK 1 I2C

11 NO MENU Invalidity

2 RAM FULL ALL 3 RAM FULL CENTER 4 RAM FULL SURROUND 5 RAM FULL SURROUND BACK (Not for service) 6 RAM FULL SUBWOOFER

2 Multi 3 DSD 4 ARC

2 CENTER: NONE 3 LFE/BASS: FRNT 4 TONE: MAX 5 TONE: MIN 6 SPEAKER 6-ohms (Not for service)

2 AC_B: Lo 3 LIM/PLDET/THM

2 ALL SEGMENT OFF 3 ALL SEGMENT ON 4 DIMMER 50% 5 CHECK PATTERN

2 TH1/TH2 3 TH3 4 AMP/DK (Not for service) 5 K1/K2

2 DIGITAL COMPONENT (Not for service) 3 DIGITAL CVBS (Not for service) 4 DIGITAL Y/C (Not for service) 5 ANALOG BYPASS (Not for service)

HTR-2064/NS-B20/NS-C20/NS-SWP20

No. Main menu Sub-menu

12 NO MENU Invalidity 13 NO MENU Invalidity 14 NO MENU Invalidity 15 HDMI INFORMATION 1 MODEL NAME

2 PRODUCT ID 3 VENDOR NAME

16 HDMI SELECT 1 HDMI NONE

2 HDMI IN 1 3 HDMI IN 2

4 HDMI IN 3 17 NO MENU Invalidity 18 IF STATUS (Not for service) 1 DSP STATUS 19 BUS CHECK 1 TI BUS:

2 EEPROM: 20 NO MENU Invalidity 21 PROTECTION HISTORY 1 HISTORY 1

2 HISTORY 2

3 HISTORY 3

4 HISTORY 4 22 SOFT SWITCH 1 SWITCH MODE

2 MODEL

3 DESTINATION 23 UPDATE (Not for service) 1 TI FLASH BOOT 24 FACTORY PRESET 1 PRESET INHIBIT

2 PRESET RESERVED 25 ROM VER/SUM/PORT 1 FIRMWARE VERSION

2 ALL CHECKSUM

3 TI (DSP) FLASH ROM VERSION

4 TI (DSP) FLASH ROM CHECKSUM

5 MODEL/DESTINATION

6 Verify (Not for service) 26 MODEL/DESTINATION (Not for service) 1 MODEL/DEST

2 M/D:

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HTR-2064/NS-B20/NS-C20/NS-SWP20

● Starting Self-Diagnostic Function

While pressing the “TONE CONTROL” and “STRAIGHT” keys, press the “ ” (Power) key to turn on the power. The self-diagnostic function mode is activated.

Keys of this unit

(Power)

While pressing these keys, turn on the power.

● Starting Self-Diagnostic Function in the protection cancel mode

If the protection function works and causes hindrance to troubleshooting, cancel the protection function by the procedure below, and it will be possible to enter the self-diagnostic function mode. (The protection functions other than the excess current detect function will be disabled.)

While pressing the “TONE CONTROL” and “STRAIGHT” keys, press the “ pressing those 2 keys and the “

The self-diagnostic function mode is activated with the protection functions disabled. In this mode, the “SLEEP” segment of the FL display flashes to indicate that the mode is self-diagnostic function mode with

the protection functions disabled.

CAUTION!

Using this unit with the protection function disabled may cause further damage to this unit. Use special care for this point when using this mode.

HTR-2064/NS-B20/

NS-C20/NS-SWP20

● Canceling Self-Diagnostic Function

1. Before canceling self-diagnostic function, execute setting for FACTORY PRESET of main menu No.24. (Memory initialization inhibited or Memory initialized). * In order to keep the user memory preserved, be sure to select PRESET INHIBITED (Memory initialization inhibited).

2. Press the “

” (Power) key to turn on the power and keep

” (Power) key for 3 seconds or longer.

” (Power) key to turn off the power.

HTR-2064/NS-B20/NS-C20/NS-SWP20

● Display provided when Self-Diagnostic Function started

The display is as described below depending on the situation when the power to this unit is turned off.

1. When the power is turned off by usual operation:

“NO PROTECT” is displayed. Then “1. ANALOG BYPAS” is displayed in a few seconds.

Main menu displayOpening message

After a few seconds

NOPROTECT 1.ANALOGBYPAS

2. When the protection function worked to turn off the power:

The information of protection function which worked at that time is displayed. Then “1.ANALOG BYPAS” is displayed in a few seconds.

Note: At that time if you restart the self-diagnostic function after turning off the power once, “NO PROTECT” will be

displayed. That is because that situation is equal to “1. When the power is turned off by usual operation:”. However history of the protection function is stored in a back-up IC. For details, refer to “21. PROTECTION

HISTORY” menu.

2-1. When the protection function worked due to excess current.

PSPRT:xxxL

AD value when the protection function is working

Cause: An excessive current flowed through the power amplifier. Supplementary information: As current of the power amplifier is detected, the abnormal channel can be identified by

checking the current detect transistor.

Turning on the power without correcting the abnormality will cause the protection function to work immediately and the power supply will instantly be shut off.

Notes:

• Applying the power to this unit without correcting the abnormality can be dangerous and cause additional circuit damage. To avoid this, if “PS” and “DC” protection function works 3 times consecutively, the power will not turn on even when the “ In order to turn on the power again, disconnect the power cable from the AC outlet once and then reconnect it again.

• The output transistors in each amplifier channel should be checked for damage before applying power to this unit.

• Amplifier current should be monitored by measuring DC voltage across the emitter resistors for each channel.

” (Power) key is pressed.

NS-C20/NS-SWP20

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HTR-2064/NS-B20/NS-C20/NS-SWP20

2-2. When the protection function worked due to a short between speaker terminals.

IPROTECT

Cause: The line between speaker terminals is shorted. Supplementary information: As the excess current is detected after operation of the speaker relay, the shorted speaker

terminal and the connected speaker can be identified.

Turning on the power without correcting the abnormality will cause the protection function to work immediately and the power supply will instantly be shut off.

2-3. When the protection function worked due to abnormal DC output.

DCPRT:xxxH

AD value when the protection function is working

Cause: DC output of the power amplifier is abnormal. Supplementary information: The protection function worked due to a DC voltage appearing at the speaker terminal. A

cause could be a defect in the amplifier.

Turning on the power without correcting the abnormality will cause the protection function to work in 3 seconds and the power supply will be shut off.

2-4. When the protection function worked due to abnormal voltage in the power supply section.

Cause: The voltage in the power supply section is abnormal. Supplementary information: The protection function worked due to a defect or overload in the power supply.

Turning on the power without correcting the abnormality will cause the protection function to work in 1 seconds and the power supply will be shut off.

2-5. When the protection function worked due to excessive heatsink temperature.

HTR-2064/NS-B20/

NS-C20/NS-SWP20

Cause: The temperature of the heatsink is excessive. Supplementary information: The protection function worked due to the temperature limit being exceeded.

Causes could be poor ventilation or a defect related to the thermal sensor.

Turning on the power without correcting the abnormality will cause the protection function to work in 1 seconds and the power supply will be shut off.

PSPRT:xxxL

AD value when the protection function is working

TMPPRT:xxxL

AD value when the protection function is working

* For detection of each protection function, refer to main menu described later.

● History of protection function

When the protection function has worked, its history is stored in memory as backup data. Even if no abnormality is noted while servicing this unit, an abnormality which has occurred previously can be defined

as long as the backup data has been stored. The history of the protection function will be initialized when self-diagnostic function is cancelled with “24-2. PRESET

RESERVED” (Memory initialized) menu selected.

HTR-2064/NS-B20/NS-C20/NS-SWP20

● Operation procedure of Main menu and Sub-menu

There are 26 main menu items, each of which has sub-menu items.

Main menu selection

Select the main menu using “SCENE TV” (forward) and “SCENE BD/DVD” (reverse) keys.

Sub-menu selection

Select the sub-menu using “SCENE RADIO” (forward) and “SCENE CD” (reverse) keys.

Keys of this unit

Main menu selection

Reverse

Forward Reverse Forward

Sub-menu selection

● Functions in Self-Diagnostic Function mode

In addition to the self-diagnostic function menu items, functions listed below are available.

• Power ON/OFF

• Master volume

• Muting

• Input selection * Functions related to the tuner and the set menu are not available.

NS-C20/NS-SWP20

HTR-2064/NS-B20/

● Initial settings when Self-Diagnostic Function started

The following initial settings are used when self-diagnostic function is started. When self-diagnostic function is canceled, these settings are restored to those before starting self-diagnostic function.

• Master volume: -20 dB

• Input: AUDIO5

• Main menu: 1. ANALOG BYPASS

• Speaker setting: LARGE, Bass out to SWFR (All channels)

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