DENON AVR-881 (01) PDF MANUAL

Before returning the unit to the customer, make sure you perform either (1) a leakage current check or (2) a line to chassis resistance check.

If the leakage current exceeds 0.5 milliamps, or if the resistance from the chassis to either side of the power cord is less than 460 kohms, the unit is defective and requires correction.

1. Remove the 6 screws indicated by arrow ①.

2. Remove the 3 screws indicated by arrow ②.

3. Detach the Top Cover in the direction shown by the arrow.

(To reassemble, reverse the disassembly steps).

1. Remove the 2 screws indicated by arrow ③.

2. Remove the 4 screws indicated by arrow ④.

3. Detach the Front Panel in the direction shown by the arrow.

(To reassemble, reverse the disassembly steps).

1. Remove the cord bushing indicated by arrow ⑤ from the Rear Panel.

2. Remove the 35 screws indicated by arrow ⑥.

3. While releasing the 2 hooks, detach the Rear Panel in the direction shown by the arrow.

(To reassemble, reverse the disassembly steps).

Use the connection diagram provided in the PDF for measuring instruments. Connect a Stereo Modulator (FM SSG) to the 75ohm antenna input and a Digital Voltmeter as shown.

Follow these steps for FM Alignment:

Step	Alignment Item	Tuning Frequency Setting	Input Type	Input Frequency	Input Level	Modulation	Coupling	Output Type	Connect to	Points	Adjust to
1	Center Adjustment	98.1MHz (98.0MHz)	FM SSG	98.1MHz	60dBμ	—	Antenna Terminal	Digital Voltmeter	R471	T402	± 50mV
2	Distortion	98.1MHz (98.0MHz)	FM SSG	98.1MHz	60dBμ	Mono 1kHz 100%	Antenna Terminal	Distortion Meter	Output Terminal (L)	T403	Minimum Distortion
3	Repeat Steps 1 and 2
4	Signal Level	98.1MHz (98.0MHz)	FM SSG	98.1MHz	20dBμ	OFF	Antenna Terminal	Light “TUNED” on FL Display	VR402	20 ± 1dB

Note: Frequencies in parentheses are for specific models mentioned in the PDF.

Use the connection diagram provided in the PDF for measuring instruments.

Follow this step for AM Alignment:

Step	Alignment Item	Frequency	Input Type	Output Connect to	Points	Adjustment Adjust to	Remarks
1	Signal Level	999 (1000) kHz	AM SSG	—	VR401	Light “TUNED” on FL Display	SSG OUTPUT 74dBμ (EMF)

Note: Frequency in parentheses is for specific models mentioned in the PDF.

Required Equipment: DC Voltmeter

Preparation:

1. Avoid direct blow from an air conditioner or electric fan. Adjust the unit at normal room temperature (15°C – 30°C / 59°F – 86°F).

2. Presetting:

– POWER (Power source switch): OFF

– SPEAKER (Speaker terminal): No load (Do not connect speaker, dummy resistor, etc.)

Adjustment:

1. Remove the top cover. Set VR101, VR102, VR103, VR104, VR105 on the Amp Unit to the full counterclockwise (minimum) position.

2. Connect the DC Voltmeter to the test points:

– FRONT-Lch: TP101

– FRONT-Rch: TP102

– CENTER ch: TP103

– SURROUND-Lch: TP104

– SURROUND-Rch: TP105

3. Connect the power cord to the AC Line and turn the power switch ON.

4. Presetting:

– MASTER VOLUME: “—” counterclockwise (minimum)

– MODE: 5CH STEREO

– FUNCTION: CD

5. Within 2 minutes after power on, turn VR101 clockwise to adjust the TEST POINT voltage (TP101) to 1.5 mV ±0.5 mV DC.

6. After 10 minutes from the preset above, turn VR101 to set the voltage (TP101) to 2 mV ±0.5 mV DC.

7. Adjust the Variable Resistors (VR102, VR103, VR104, VR105) for the other channels (TP102, TP103, TP104, TP105) in the same way.

Ref. No.	Part No.	Part Name	Remarks
F101	960 0142 806	Fuse 2.5A	For E3, EU, E1, E1C, E1H, E1T
AF101LR	960 0188 705	Fuse 8A	For E3, EU
AF101	960 0188 705	Fuse 8A	For E2, E1, E1C, E1H, E1T
F102	963 0044 709	Fuse 3.15A	For E2, E1, E1C, E1H, E1T
AF102	963 0044 709	Fuse 3.15A	For E2, E1, E1C, E1H, E1T
F901	960 0142 602	Fuse T2.5AL	For E1, E1H, E1T
F102	–	Fuse T6.3AL	(Appears on Voltage Sel. PWB Diagram, Page 23, but part number not listed here) For E1, E1H, E1T
F901	–	Fuse T3.15AL	(Appears on Voltage Sel. PWB Diagram, Page 23, but part number not listed here) For E1, E1H, E1T

Note: Fuse specifications may vary based on the model region (E3, EU, E2, E1, E1C, E1H, E1T). Always replace fuses with the exact type and rating specified. Refer to the parts list in the PDF for specific part numbers if ordering replacements.

The packing typically includes:

Set poly bag

Cushion

Carton case (specific to region)

Poly bag

Instruction manual (specific to region/language)

S.S. list (Service Station list, likely region-specific)

AM loop antenna

FM indoor antenna

Remote Control Unit (RC-874)

Batteries (R6P/AA Type) x 2

FM antenna adapter (region-specific)

AC plug adapter (for E1T – Taiwan R.O.C. model)

DEL Warranty home (for E3, EU)

Control label

UPC label (for E3, EU)

EAN label (for E2)

Label (RDS, RADIO TEXT) (for E2)

Label (CCIB) (for E1C – China model)

Carton label (A) (for E1, E1C, E1H, E1T)

Carton label (B) (for E1, E1C, E1H, E1T)

Color label (Gold) (for Gold models)

Pad (for E1H – Hong Kong model)

Note: Included accessories may vary slightly depending on the region and specific model variant.