Technics sa-g77 Manuals

Manuals and User Guides for Technics sa-g77. We have 1 Technics sa-g77 manual available for free PDF download: Service Manual

Technics sa-g77 Service Manual

Technics sa-g77 Service Manual (67 pages)

Av Control stereo receiver

Brand: Technics | Category: Stereo Receiver | Size: 10.61 MB

Table of Contents

Specifications
1
Contents
2
Accessories
2
Before Repair
2
Protection Circuitry
2
Caution for AC Main Lead
3
Before Use
3
How to Replace the Fuse
3
Front Panel Controls
4
Equipment Connections
5
Connecting Audio Equipment
5
Connecting Video Equipment
5
To Connect a Video Equipment with 21 Pin Terminal
6
To Connect a Second VCR
6
Connecting a DVD Player
7
AC Power Supply Cord
7
Insertion of Connector
7
FM Indoor Antenna
8
AM Loop Antenna
8
FM Outdoor Antenna
8
AM Outdoor Antenna
8
Speaker Connections
9
Placement of Speakers
9
Connecting the Speaker Cables
10
To Conect a Subwoofer Which Does Not Have a Built-In Amplifier
10
Basic Operations
11
When the Tape Monitor Indicator Is Lit or Flashing
11
To Adjust Tone Quality and Sound Balance
12
To Mute the Sound Level
12
To Listen through Headphones
12
To Correct Sound in Case of Low Volume
12
Enjoying RDS Broadcasts
13
To Change the Display Mode
13
To Listen to a Program of a Particular Type
13
About the PTY Display
14
EON Tuning
14
Enjoying Sound with Dolby Pro Logic
15
Setting the Center Mode and Adjusting Speakers
15
Output Level
15
Adjusting the Delay Time
17
Enjoying with Surround or 3 Stereo
17
To Calculate the Delay Time
17
Enjoying Sound with 6 Channel Discrete
18
To Adjust the Input Level
18
Operation Checks and Main Component Replacement Procedures
19
Checking Procedure for each PCB
19
Checking for the Tuner PCB and FL PCB
19
Checking for the In/Out Terminal PCB and Surround PCB
20
Checking for the Main PCB
21
Main Component Replacement Procedures
22
Replacement for the Power IC and Regulator Transistor
22
Installation of the Bottom Cover after Replacement
23
Fan Motor Troubleshooting
24
Troubleshooting
25
Connections
25
Required Items
25
Test Procedure for Amplifier Circuit
25
Normal Waveforms of Amplifier Circuit and Likely Faulty Blocks
26
Checking Procedure for Surround Circuit
26
Overload Detection Function
28
Circuit Blocks
28
Schematic Diagram
29
Tuner Circuit
30
In/Out Terminal Circuit
32
FL Circuit
37
Headphones Jack Circuit
37
Power Switch Circuit
37
Surround Circuit
38
Main Circuit
40
Power Supply Circuit
42
Transformer Circuit
42
AC in Circuit
42
Printed Circuit Board Diagram
43
Tuner PCB
43
Headphones Jack PCB
43
Power Switch PCB
43
In/Out Terminal PCB
44
Surround PCB
45
Main PCB
49
Transformer PCB
50
Power Supply PCB
50
AC in PCB
50
Wiring Connection Diagram
51
Block Diagram
52
Replacement Parts List
59
Packaging
64
Cabinet Parts Location
65

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