Denon AVR-S740H - Page 74

Denon AVR-S740H

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YES

NO

(15) Are a picture and sound output when a dif-

ferent TV is used?

Check the unit.

The TV is faulty.

See "HDMI "Rx/Tx" Failure Detection"

NO

Before Servicing

This Unit

Electrical Mechanical Repair Information Updating

74

Table of Contents

AVR-X1500H1
AVR-S740H1
SAFETY PRECAUTIONS3
- NOTE FOR SCHEMATIC DIAGRAM4
- HANDLING THE SEMICONDUCTOR AND OPTICS4
- ONLINE PARTS LIST5
- SERIAL NUMBER6
  - Serial Number Organization6
  - SKU Code of this Unit6
- POST-SERVICE PRECAUTIONS7
SCHEMATIC DIAGRAMS9
- SCH01_HDMI_RX9
- SCH02_HDMI_TX10
- SCH03_OSD11
- SCH04_DIGITAL SUPPLY12
- SCH05_MCU13
- SCH06_MCU_LEVEL_CHG14
- SCH07_DIR15
- SCH08_PLD16
- SCH09_DSP17
- SCH10_MAIN DAC18
- SCH11_NETWORK19
- SCH12_ANALOG20
- SCH13_MAIN21
- SCH14_FRONT_HDMI22
- SCH15_DIFF-AMP23
- SCH16_PHONO & TUNER24
- SCH17_FRONT25
- SCH18_REGULATOR26
- SCH19_SMPS27
PRINTED CIRCUIT BOARDS28
- DIGITAL, F HDMI, TUNER, PHONE28
- MAIN29
- DIFF-AMP, BIAS-TR, PHONE WIRE GUIDE, HDMI CABLE GUIDE, SMPS, REGULATOR30
- FRONT, PHONE, USB WIRE GUIDE, STANDBY, MIC, USB31
LEVEL DIAGRAM32
- FRONT ch32
- CENTER, SURROUND ch33
- SURROUND BACK ch34
- SUBWOOFER ch35
- ZONE2 ch36
BLOCK DIAGRAM37
- ANALOG AUDIO DIAGRAM37
- DIGITAL AUDIO DIAGRAM38
- VIDEO DIAGRAM39
POWER DIAGRAM40
WIRING DIAGRAM41
SEMICONDUCTORS42
- 1. IC's42
- 2. FL DISPLAY57
- 3. Remote Code Table58
DISASSEMBLY65
- Flowchart65
- 1. FRONT PANEL ASSY66
- 2. DIGITAL PCB67
- 3. RADIATOR ASSY67
- 4. SMPS PCB67
- 5. REGULATOR PCB67
- 6. POWER TRANS67
EXPLODED VIEW68
PACKAGING VIEW69
TROUBLE SHOOTING71
- 1. POWER71
- 2. Analog video72
- 3. HDMI/DVI73
- 4. AUDIO75
- 5. Network / Bluetooth / USB77
- 6. SMPS80
HDMI "Rx/Tx" Failure Detection81
- 1. Prior checking81
- 2. Preparations for checking HDMI Switcher reception/transmission register82
- 3. Starting detecting the point of failure84
- 4. Device implementation location111
CLOCK FLOW & WAVE FORM IN DIGITAL BLOCK112
SPECIAL MODE113
- Special mode setting button AVR-X1500H113
- Special mode setting button AVR-S740H114
- 1. Version Display Mode115
- 2. PANEL / REMOTE LOCK Selection Mode118
- 3-1. Selecting the Mode for Service-related119
- 3-2. Protection History Display Mode120
- 3-3. Operation Info Mode122
- 3-4. TUNER STEP mode (E2 / E3 only)123
- 3-5. Remote ID Setup Mode123
- 4. Protection Pass Mode124
- 5. Network Initialization Mode124
- 6. Clearing the Operation Info125
- 7. Log Capture feature125
DIAGNOSTIC MODE126
- Service Path Check Mode126
- DIAGNOSTIC PATH DIAGRAM129
JIG FOR SERVICING144
ADJUSTMENT145
PROCEDURE AFTER REPLACING THE PCB.147
PROCEDURE AFTER REPLACING THE U-COM, ETC.147
FIRMWARE UPDATE PROCEDURE148
- 1. Items necessary for update148
- 2. Update preparation with a USB flash drive149
- 3. Update method when the DIGITAL PCB or network module is replaced (Using a USB flash drive)150
- 4. Update Method for Service Region Settings151
- 5. Normal Firmware Update Method from USB Flash Drive152
- 6. Normal Firmware Update Method from OTA153
- 7. About the error codes154

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