Panasonic DMR-HS2EB, Service Manual

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11.3 Hint for repair
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AA. Main circuit repair
1. Separation of video and audio systems
❍
Using internal oscillation of video signal (white/magenta signal)
1. Enter the service mode.
[ Service mode: While power is off, press [Pause], [Open/Close] and [Stop] keys
simultaneously.]
2. Set [DVD/TV] switch on remote controller to DVD.
3. When [1] [1] key is pressed, digital P.C.B. produces white picture and chroma 100%
signal output.
4. When [1] [2] key is pressed, digital P.C.B. produces magenta/chroma 100% signal
output.
❍
Using internal oscillation of audio signal
1. Enter the service mode.
[ Service mode: While power is off, press [Pause], [Open/Close] and [Stop] keys
simultaneously.]
When [4] [8] key is pressed, digital P.C.B. produces 1kHz±0dB (AC3/5.1ch sine wave)
signal.
❍
Using video select with AV4 input.
1. Enter the service mode.
[ Service mode: While power is off, press [Pause], [Open/Close] and [Stop] keys
simultaneously.]
2. Set [DVD/TV] switch on remote controller to DVD.
3. Input Video signal to AV4 in.
4. When the channel key [8][0] is pressed, video signal should output on AV1 (RGB).