Yamaha DVR-S120 Service Manual

SERVICE MANUAL
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.
IMPORTANT NOTICE
100870
SERVICE MANUAL
DVR-S120/ NX-P120
HOME THEATER SOUND SYSTEM DVX-S120
The DVX-S120 is composed of the DVR-S120 and the NX-P120.
DVX-S120 は DVR-S120 と NX-P120 で構成されています。
DVR-S120 SELF DIAGNOSIS FUNCTION (DIAG) /
DVR-S120自己診断機能（ダイアグ） . . . . . . . . . .21–43
DISPLAY DATA . . . . . . . . . . . . . . . . . . . . . . . . . .44–45
IC DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46–55
DVR-S120 ADJUSTMENT / DVR-S120調整 ...... 56
DVR-S120 BLOCK DIAGRAM . . . . . . . . . . . . . .57–59
DVR-S120 PRINTED CIRCUIT BOARD . . . . . . .60–68
NX-SW120 PRINTED CIRCUIT BOARD . . . . . . . . .69
DVR-S120 SCHEMATIC DIAGRAM . . . . . . . . . .70–79
NX-SW120 SCHEMATIC DIAGRAM . . . . . . . . . . . .80
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81–97
REMOTE CONTROL . . . . . . . . . . . . . . . . . . . . . . . . .98
■ CONTENTS
TO SERVICE PERSONNEL . . . . . . . . . . . . . . . . . .2–4
PREVENTION OF ELECTRO STATIC DISCHARGE . . . . . . 4
LOCALE MANAGEMENT INFORMATION . . . . . . . .5
SYSTEM COMPOSITION /
システム構成 ........... 5
FRONT PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . .6–7
REMOTE CONTROL PANELS . . . . . . . . . . . . . . . . . .7
REAR PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . .8–9
SPECIFICATIONS /
参考仕様 ................ 10–12
INTERNAL VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
DVR-S120 DISASSEMBLY PROCEDURES /
DVR-S120分解手順 ........................ 14–18
NX-SW120 DISASSEMBLY PROCEDURES /
NX-SW120分解手順 ....................... 19–20
DVR-S120
NX-P120
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

Yamaha DVR-S120 Specifications

General

Type	DVD Recorder
Video Recording System	MPEG-2
Audio Recording System	Dolby Digital
Component Video Output	Yes
Composite Video Output	Yes
S-Video Output	Yes
DVD player type	DVD player
Playback Formats	DVD, CD
Recording Formats	DVD-R
Digital Audio Output	Coaxial

Summary

IMPORTANT NOTICE

WARNING: CHEMICAL CONTENT NOTICE!

About lead-free solder / 無鉛ハンダについて

WARNING: Laser Safety

Laser Emitting conditions

Explains conditions under which the laser emits and precautions.

Laser Diode Properties

Lists properties of the laser diode used in the product.

PREVENTION OF ELECTRO STATIC DISCHARGE

Grounding for electrostatic damage prevention

Details worktable and human body grounding procedures to prevent static damage.

Handling of the optical pickup

Precautions for handling and testing the optical pickup to prevent damage.

Handling Precautions for the Traverse Unit (Optical Pickup)

Gentle handling guidelines for the high-precision traverse unit.

LOCALE MANAGEMENT INFORMATION

SYSTEM COMPOSITION / システム構成

FRONT PANELS

DVR-S120

Illustration of the front panel of the DVR-S120 unit.

REMOTE CONTROL PANELS

J model

Diagram of the remote control for J model units.

U, C, R, T, K, L, A models

Diagram of the remote control for U, C, R, T, K, L, A models.

B, G models

Diagram of the remote control for B, G models.

REAR PANELS

DVR-S120 (U, C, R, T, K, L, A models)

Rear panel connections for DVR-S120 U, C, R, T, K, L, A models.

DVR-S120 (B, G models)

Rear panel connections for DVR-S120 B, G models.

DVR-S120 (J model)

Rear panel connections for DVR-S120 J model.

NX-S120

Rear panel diagram for the NX-S120 unit.

NX-C120

Rear panel diagram for the NX-C120 unit.

NX-SW120 (U, C models)

NX-SW120 (R, L, T, K models)

NX-SW120 (B, G models)

NX-SW120 (A model)

NX-SW120 (J model)

SPECIFICATIONS / 参考仕様

DVR-S120

Detailed specifications for the DVR-S120 unit, including amplifier, DVD, video, and tuner sections.

NX-S120

NX-SW120

Specifications for the NX-SW120 subwoofer.

NX-C120

Specifications for the NX-C120 center speaker.

DIMENSIONS / 寸法図

DVR-S120

Dimensional drawings for the DVR-S120 unit.

NX-SW120

Dimensional drawings for the NX-SW120 subwoofer.

NX-C120

Dimensional drawings for the NX-C120 center speaker.

NX-S120

Dimensional drawings for the NX-S120 speaker.

INTERNAL VIEW

DVR-S120

Internal component layout diagram for the DVR-S120.

NX-SW120

Internal component layout diagram for the NX-SW120.

DVR-S120 DISASSEMBLY PROCEDURES / DVR-S120分解手順

Removal of Side Cover L/R

Step-by-step instructions for removing the left and right side covers.

Removal of Bottom Cover

Instructions for removing the bottom cover of the unit.

HOW TO MANUALLY EJECT THE TRAY

Removal of Top Unit

Removal of DVD Mechanism

Removal of DIGITAL P.C.B.

Removal of D-Amp Module

Instructions for removing the D-Amp Module.

Removal of MAIN (3) P.С.В.

Steps for removing the MAIN (3) P.C.B.

Removal of AM/FM Tuner

Procedure for removing the AM/FM Tuner.

Removal of MAIN (2) & SUB (1) P.C.В.

Removal of MAIN (1) P.С.В.

Instructions for removing the MAIN (1) P.C.B.

NX-SW120 DISASSEMBLY PROCEDURES / NX-S W 120分解手順

Removal of Front Grille

Procedure for removing the front grille of the NX-SW120.

Removal of Rear Panel

Steps for removing the rear panel of the NX-SW120.

When checking the P.C.В.

DVR-S120 SELF DIAGNOSIS FUNCTION (DIAG) / DVR-S120自己診断機能(ダイアグ)

No. DIAG menu

Table listing DIAG menu items and their corresponding sub-menus for self-diagnosis.

No. DIAG menu

Starting DIAG

Display provided when DIAG started

When there is no history of protection function

Describes the display when no protection history is recorded.

When there is a history of protection function

Explains how protection function history is displayed.

History of protection function

Display during menu operation

Operation procedure of DIAG menu and SUB-MENU

Functions available during DIAG

Lists functions that can be operated while the DIAG menu is active.

Initial settings used to start DIAG function

Describes the default settings applied when starting the DIAG function.

Details of DIAG menu

1. DSP THROUGH

Explains the DSP Through function and its sub-modes like ANALOG BYPASS.

YSS OdB

Details the YSS 0dB mode, including head margin output.

YSS Front 0dB

Explains the YSS Front 0dB mode, including head margin output.

YSS FULL BIT

YSS FULL BIT F

2. RAM THROUGH

3. PRO LOGIC

4. SPEAKERS SET

Sub-menu

Table showing analog switch settings for different sub-menus within SPEAKERS SET.

5. MARGIN CHECK

MAIN 12dB MARGIN

Details the settings and output for the MAIN 12dB MARGIN mode.

MAIN 18dB MARGIN

Details the settings and output for the MAIN 18dB MARGIN mode.

6. DISPLAY CHECK

7. MANUAL TEST

TEST ALL

Output of noise from all channels except SUB WOOFER.

TEST FRONT L

Output of noise from the FRONT L channel.

TEST CENTER

Output of noise from the CENTER channel.

TEST FRONT R

Output of noise from the FRONT R channel.

TEST R SURROUND

Output of noise from the SURROUND R channel.

TEST L SURROUND

Output of noise from the SURROUND L channel.

TEST LFE

Output of noise from the SUB WOOFER channel.

8. FACTORY PRESET

PRESET INHIBIT (Initialization inhibited) / PRESET INHIBIT(初期化禁止)

Protects user settings by preventing RAM initialization.

PRESET RESERVED (Initialization reserved) / PRESET RESERVED(初期化予約)

Reserves RAM initialization and allows resetting to factory settings or clearing protection history.

PRESET STATIONS / プリセット局

Table showing factory preset data for FM and AM stations.

9. AD DATA CHECK/FAN TEST

PS/PS2 (protection detection)

Shows power supply voltage protection values and their normal ranges.

KO (Panel key of main unit)

Checks the A/D function of panel keys and explains how to navigate sub-menus.

TH/Fa (temperature detection/fan drive level)

FAN DRIVE TEST

Tests the fan drive function at different levels (HIGH, MID, LOW).

10. IF STATUS (Input function status)

IS1 (Internal status)

Indicates status information of the microprocessor.

1st byte

Digital input/output setting value, REC OUT/INPUT selection.

2nd byte

Fs information of reproduction signal.

3rd byte

Audio code mode information of reproduction signal.

4th byte

Format information of reproduction signal.

IS2-3 (Internal status): (Not used in this model)

CS1-5: Indicates channel status information...

Channel status information of input signal (IEC60958), not used.

BY1-4: Indicates information of the bit stream...

Bit stream information in DOLBY DIGITAL signal, not used.

BC1-5: Indicates information of the bit stream...

Bit stream information in dts signal, not used.

YS1-3: Indicates device status information of YSS938...

Device status information of YSS938, not used.

CS: CS49329 Unsolicited Messages

Unsolicited messages from CS49329, not used.

MTT: Mute Trigger (Not used in this model)

Mute Trigger function, not used in this model.

11. DSP RAM CHECK

YSS938 BUS CHECK

Checks YSS938 bus connection status (WAIT, NoEr, DATA, RSCS, ADDR).

PLD/SRAM BUS CHECK

Checks PLD/SRAM bus connection status (WAIT, NoEr, DATA, EDxx, EAxx).

12. SOFT SW

13. MICROPROCESSOR INFORMATION

Version / バージョン情報

Shows microprocessor version information.

Checksum / チェックサム表示

Displays the checksum for the entire program area.

Check of port setting for judging microprocessor function

Checks microprocessor function port settings.

Display of AAC function detection port state

Shows the AAC function detection port status.

14. Other Information

Soft Date / ソフトの日付

Displays the software date.

Rom Correction Exit, Not / ROM コレクションデータの有無

Indicates the presence or absence of ROM correction data.

Rom Correction Check Sum Display / ROM コレクションエリアのチェックサム

Displays the checksum of the ROM correction area.

Rom Correction Remote Control Receive / ROM コレクションデータのリモコン受信

Shows ROM collection data reception via remote control.

Remote Control Code Display / リモコン受信コード表示

Allows checking the received remote control code.

Protect History Delete / プロテクション履歴削除の予約/解除

Allows reserving or canceling the deletion of protection history.

Forced output of UCD clock / UCD クロックの強制出力

Selects HIGH or LOW output for UCD clock using A/B/C/D/E keys.

Forced output of aspect, interlace/progressive port / アスペクト、インターレース/プロレッシブポートの強制出力

Selects H, M, or L output for aspect and interlace/progressive ports.

DISPLAY DATA

PIN CONNECTION

Table showing pin connections for the pattern area.

GRID ASSIGNMENT

Diagram showing grid assignments for various functions.

ANODE CONNECTION

IC DATA

IC381: M30624FGAFP (DIGITAL P.C.B.) Main CPU

Pin details and functions for the main CPU IC381.

IC381: M30624FGAFP (DIGITAL P.C.B.) Main CPU

• KEY INPUT (A-D) PULL UP RESISTOR 10ΚΩ

Details key input pull-up resistors and their corresponding display values.

• TUNER MARKET & DVD REGION SELECT IN (89 pin, A-D) PULL UP RESISTOR 10ΚΩ

Tuning market and DVD region select pull-up resistors.

IC383: M38517FGFP (DIGITAL P.C.B.) SUB CPU

IC379: YSS938 (DIGITAL P.C.B.) DSP

DSP

DSP

DSP

IC372: XC9572XL-10Q100C (DIGITAL P.C.B.) PLD

PLD

PLD

DVR-S120 ADJUSTMENT / DVR-S120調整

Condition

Conditions required before performing adjustments.

DC Offset Adjustment

Procedure to adjust DC offset voltage on D-Amp modules.

DVR-S120 BLOCK DIAGRAM / ブロックダイアグラム

MAIN

SUB

DVD

DVR-S120 BLOCK DIAGRAM / ブロックダイアグラム

DIGITAL

Block diagram for the DIGITAL section of the DVR-S120.

SUB

Block diagram for the SUB section of the DVR-S120.

MAIN

Block diagram for the MAIN section of the DVR-S120.

DVR-S120 PRINTED CIRCUIT BOARD (Foil side)

DVD MECHANISM

Foil side layout of the DVD mechanism PCB.

MAIN (1) P. C. B.

Foil side layout of the MAIN (1) P.C.B.

DVR-S120 PRINTED CIRCUIT BOARD (Foil side)

DVD-S120 PRINTED CIRCUIT BOARD (Foil side)

Foil side layout of the DVD-S120 PCB.

DVR-S120 PRINTED CIRCUIT BOARD (Foil side)

MAIN (1) P. C. В.

Foil side layout of the MAIN (1) P.C.B.

MAIN (2) P. C. В.

Foil side layout of the MAIN (2) P.C.B.

DVR-S120 PRINTED CIRCUIT BOARD (Foil side)

MAIN (1) P. C. B.

Foil side layout of the MAIN (1) P.C.B.

MAIN (2) CB124

Layout of MAIN (2) CB124 connections.

POWER TRANSFORMER

Layout of the power transformer.

D-AMP MODULE

Layout of the D-AMP module.

DVR-S120 PRINTED CIRCUIT BOARD (Foil side)

MAIN (1) P. C. В.

Foil side layout of the MAIN (1) P.C.B.

MAIN (3) P. C. В.

Foil side layout of the MAIN (3) P.C.B.

DVR-S120 PRINTED CIRCUIT BOARD (Foil side)

MAIN (1) P. C. B.

Foil side layout of the MAIN (1) P.C.B.

SUB (1) P. C. В.

Foil side layout of the SUB (1) P.C.B.

SUB (2) P. C. В.

Foil side layout of the SUB (2) P.C.B.

DVR-S120 PRINTED CIRCUIT BOARD (Foil side)

SUB (1) P. C. B.

Foil side layout of the SUB (1) P.C.B.

SUB (2) P. C. B.

Foil side layout of the SUB (2) P.C.B.

DVR-S120 PRINTED CIRCUIT BOARD (Foil side)

SUB (3) P. C. В.

Foil side layout of the SUB (3) P.C.B.

SUB (4) P. C. В.

Foil side layout of the SUB (4) P.C.B.

NX-SW120 PRINTED CIRCUIT BOARD

P.C.B. MAIN (1)

Printed circuit board layout for the NX-SW120 MAIN (1).

P.C.B. MAIN (2)

Printed circuit board layout for the NX-SW120 MAIN (2).

DVR-S120 SCHEMATIC DIAGRAM (DVD 1/5)

DVR-S120 SCHEMATIC DIAGRAM (DVD 2/5)

DVR-S120 SCHEMATIC DIAGRAM (DVD 3/5)

M3 Audio Part

Schematic diagram for the Audio Part (part 3 of 5).

DVR-S120 SCHEMATIC DIAGRAM (DVD 4/5)

DVR-S120 SCHEMATIC DIAGRAM (DVD 5/5)

DVR-S120 SCHEMATIC DIAGRAM (DIGITAL)

DVR-S120 SCHEMATIC DIAGRAM (AUDIO)

DVR-S120 SCHEMATIC DIAGRAM (MAIN 1/3)

DVR-S120 SCHEMATIC DIAGRAM (MAIN 2/3)

DVR-S120 SCHEMATIC DIAGRAM (MAIN 3/3)

DVR-S120 SCHEMATIC DIAGRAM (SUB)

PARTS LIST

ELECTRICAL PARTS

List of electrical components with part numbers and descriptions.

DVR-S120 P.C.B. DIGITAL & MAIN

DVR-S120 P.C.B. MAIN

DVR-S120 P.C.B. MAIN

DVR-S120 P.C.B. MAIN

DVR-S120 P.C.B. MAIN

NX-SW120 P.C.B. MAIN

NX-SW120 P.C.B. MAIN

Parts List for Chip Ceramic Capacitors

Parts List for Chip Carbon Resistors

List of chip carbon resistor values and part numbers.

DVR-S120 MECHANICAL PARTS

NX-P120 MECHANICAL PARTS

NX-P120 EXPLODED VIEW

REMOTE CONTROL

J model

Remote control button mapping and codes for the J model.

U, C, R, T, K, L, A models

Remote control button mapping and codes for U, C, R, T, K, L, A models.

B, G models

Remote control button mapping and codes for B, G models.