What to do if there is no video output from my Harman Kardon Receiver?
If you're not getting any video output from your Harman Kardon Receiver, start by checking the Video Regulator voltage, specifically performing a DC voltage check at +(12)V. Then, check the Micom control data and the Video Mute port.
What causes bump sound when changing inputs on my Harman Kardon AVR-133 Receiver?
If you are experiencing a bump sound during input-select switch changes on your Harman Kardon Receiver, check the FRONT, CENTER, and SURROUND Mute transistors. Ensure they are not out or inferior.
Why is the stereo effect failing on my Harman Kardon Receiver?
If the stereo effect isn't working on your Harman Kardon Receiver, and the stereo indicator doesn't light up, check the FM DET COIL. Also, check the PLL&MPX IC, including its voltage and MPX control data. Finally, check the µ-COM I.C & Resonator.
What causes key disorder on a Harman Kardon AVR-133?
If you're experiencing key disorder on your Harman Kardon Receiver, check if any keys are being pushed. Also, check the key signal input components, Key PORT, and the µ-COM I.C.
What to do if I hear sound from speakers when headphones are connected to my Harman Kardon Receiver?
If you are hearing sounds from the speakers when headphones are connected to your Harman Kardon Receiver, push the Speaker On/Off Button to turn the speakers off.
General| Type | AV Receiver |
|---|---|
| THD | 0.07 % |
| Frequency Response | 20 Hz - 20 kHz |
| Frequency Response (Alternative) | 10 Hz - 100 kHz |
| Input Sensitivity | 200 mV |
| Input Impedance | 47 kOhms |
| Output Power | 40 Watts per channel (8 ohms) |
| Signal to Noise Ratio | 80dB |
| Tuning range | AM/FM |
| FM tuning range | 87.5 MHz - 108 MHz |
| Video Connections | Composite, S-Video |
Safety precautions for servicing and AC leakage current check.
Details the pin functions of the UPD78F0536GK microcontroller.
Lists pin names, symbols, I/O types, and descriptions for the UPD78F0536GK.
Detailed circuit diagram for the main PCB, part 1.
Detailed circuit diagram for the main PCB, part 2.
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