Denon AVR-1621 - Page 12

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(4) Disconnect the connector, then remove the HDMI UNIT ASSY from the main unit.

(5) Disconnect the connector board.

(6) Disconnect the connector board.

Direction of photograph: D

CP12

PCB HDMI

Board to board

PCB AUDIO VIDEO

PCB FRONT CNTPCB SIDE CNT

Board to board

Main Page

Safety Precautions2
Leakage Current Check2
Concerning Important Safety Parts2
Note for Schematic Diagram3
Note for Parts List3
Resistors3
Capacitors3
Technical Specifications4
Dimension4
Caution in Servicing5
Initializing AV SURROUND RECEIVER5
Service Jigs5
Extension Unit Kit5
Surround Mode5
Disassembly6
About the Photos Used for Descriptions in the DISASSEMBLY" Section6
Front Panel Assy7
Cabinet Top7
Radiator Assy8
Pcb Reg Cnt/Pcb Reg10
Hdmi Unit Assy11
Pcb Spk/Pcb Smps13
Trans Main15
Special Mode Setting Button16
Μcom/Dsp Version Display Mode17
Operation Speciﬁ Cations17
Display Order17
Error Display17
Errors Checking Mode (Displaying the Protection History)18
Operation Specifications18
About the Display on the FL Display18
Clearing the Protection History19
Warning Indication by the POWER LED19
Jig for Servicing20
Connection of PCB HDMI JIG20
Connection Table of Board to Board21
About Replace the Microprocessor with a New One22
Version Upgrade Procedure of Firmware22
Preparations before Starting the Operation22
Connection of the AV Receiver/Amplifier22
Communication Check23
Confi Rming the Fi Rmware's Number after Upgraded25
Surround Modes and Parameters26
Adjustment30
Idling Current30
Trouble Shooting31
Power Not Turn on31
Analog Video32
MONITOR out (CVBS) Output NG32
HDMI out Outpu NG32
Hdmi/DVI36
No Picture or Sound Is Output36
HDMI Test Point and Waveforms39
Digital Unit39
Audio Check41
Audio Output: Ng41
Power AMP (5CH (7CH ) AMP B'D)42
Analog Audio43
No Sound Is Output43
Clock Flow & Wave Form in Digital Block45
Wave Form45
Block Diagram46
Audio Block Diagram46
Video Block Diagram47
VCC Block Diagram48
Laevel Diagram49
Printed Wiring Boards55
Smps (Component Side)56
Smps (Foil Side)56
Spk (Component Side)57
Spk (Foil Side)58
Reg (Component Side)59
Front_Cnt (Component Side)59
Reg_Cnt (Component Side)59
Reg (Foil Side)60
Front_Cnt (Foil Side)60
Reg_Cnt (Foil Side)60
Side_Cnt (Component Side)61
Side_Cnt (Foil Side)61
H/P (Component Side)61
H/P (Foil Side)61
Front (Component Side)62
Function (Component Side)62
Function_Cnt (Component Side)62
Front (Foil Side)63
Function (Foil Side)63
Function_Cnt (Foil Side)63
Audio_Video (Component Side)64
Audio_Video (Foil Side)64
Hdmi (Component Side)65
Hdmi (Foil Side)66
Schematic Diagrams67
Side Connector72
Front Connector73
Wiring Diagram90
Exploded View91
Parts List of Exploded View92
Packing View94
Parts List of Packing & Accessories94
Semiconductors95
IC's95
R5F64169DFD Terminal Functions96
R5F3650Knfb (Hdmi : U3301)99
R5F3650KNFB Terminal Functions100
Adv7511Bstz (Hdmi : U1501)102
ADV7511BSTZ Block Diagram102
Top View102
Lc89058W-E (Hdmi : U1706)103
Pin Functions103
LC89058W-E Block Diagram104
Adsp21367Kswz2A (Hdmi : U1901)105
ADSP21367KSWZ2A Terminal Function105
W9864G2Ih-6 (Hdmi : U1902)106
W9864G2IH-6 Block Diagram107
W9864G2IH-6 Pin Description108
Pin Number108
En29Lv160Bb (Hdmi : U1903)109
Bottom Boot Sector109
EN29LV160BB Block Diagram109
Ak4424Et (Hdmi : U2305)110
AK4424ET Block Diagram110
Ak4358Vq (Hdmi : U2102)111
AK4358VQ Pin Function111
Ak5358Bet (Hdmi : U2101)112
AK5358BET Pin Function112
R2A15220Fp (Av : Ic801)113
R2A15220FP Pin Function114
Epm3032A (Hdmi : U1707)115
Lc74781 (Av : Ic810)115
Njm2586Am (Av : Ic811)115
Fl Display116
Fld (18-St-13Gink) (Front : U100)116
Pin Connection116
Anode Connection117
Parts List of P.C.b. Unit118
PCB 7CH_AMP ASS'Y (1611E3 Model)118
Pcb Spk Ass'y127
Pcb Reg_Cnt Ass'y131
Pcb Front Ass'y133
Pcb Audio_Video Ass'y136
Pcb Hdmi Ass'y139

Denon AVR-1621 - Page 12

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