Denon AVR-S740H Service Manual

3-2. Error Code H1-02 failure detection procedure
Checking device. (HDMI SW)
YES
YES NO
Checking the reset waveform. (HDMI SW)
Check item(10). Checking the reset waveform :
Check the waveform.
When the power is turned on, is the TP"787_RST" waveform cor-
rect (as shown in the gure)?
IC701
788_RST
Check the reset circuit between
CPU [IC751] and HDMI SW [IC701].
If there is no problem, the HDMI
SW [IC701] is faulty.
Replace with a new device.
NO
Examples of conrmation waveform
Voltage scale：1.0V/div
Time scale：20ms/div
Check item(11). Checking the HDMI SW :
Remove the [R7147/R7149].
Is the waveform of "I2C" the correct waveform?
HDMI SW [IC701] is faulty.
Replace with a new device.
Recheck from check item (1).
If it does not work, replace the PCB.
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
88

Denon AVR-S740H Specifications

General

Channels	7.2
Power Output per Channel	75 W (8 Ohms, 20 Hz - 20 kHz, 0.08% THD)
HDMI Inputs	6
HDMI Outputs	1
Dolby Atmos	Yes
DTS:X	Yes
Bluetooth	Yes
Wi-Fi	Yes
HEOS Multi-room	Yes
4K Ultra HD Pass-through	Yes
Power Output per Channel (6 Ohms)	110 W (6 Ohms, 1 kHz, 0.7% THD)
4K/Ultra HD Upscaling	Yes
Phono Input	Yes
Dolby Support	Dolby Atmos, Dolby TrueHD, Dolby Surround
Auto Calibration	Audyssey MultEQ
Input Sensitivity/Impedance	200 mV / 47 kOhms
Signal-to-Noise Ratio	98 dB (IHF-A weighted, Direct mode)
Ethernet	Yes
USB Port	Yes (front)
AM/FM Tuner	Yes
Supported Audio Formats	MP3, WMA, AAC, FLAC, ALAC, WAV, DSD
HDR Support	HDR10, HLG, Dolby Vision
Wireless Audio	AirPlay 2
DTS Support	DTS:X, DTS-HD Master Audio
Zone Audio	Zone 2
Frequency Response	10 Hz - 100 kHz (+1, -3 dB, Direct Mode)
Total Harmonic Distortion	0.08% (20 Hz - 20 kHz)
Built-in DAC	192 kHz / 24-bit