Hitachi CG2026S, Service Manual

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12
PINNING PIN VALUE
1. Demagnetization Zero cross detection voltage : 50 mV typ.
2. I Sense Over current protection voltage 1V typ.
3. Control Input Min : 7.5V Max. : 18V
4. Ground Iout 2A
p-p
during scan 1.2A
p-p
during flyback
5. Driver Output resistor 8.5 Ohm sink 15 Ohm source typ.
6. Supply voltage Max : 16V (Operating range 6.6V-13V)
7. No connection
8. Line Voltage Min : 50V Max : 500V
MSP34X0D
The MSP 34x0D is designed to perform demodulation of FM or AM-Mono TV sound. Two kinds of MSP’s are used. MSP
3400D and MSP3410D. The MSP 3400D is fully pin and software-compatible to the MSP3410D, but is not able to decode
NICAM. It is also compatible to the MSP3400C.
General description:
Demodulator and NICAM Decoder Section
The MSP34x0D is designed to perform demodulation of FM or AM-Mono TV sound. Alternatively, two-carrier FM systems
according to the German or Korean terrestrial specs or the satellite specs can be processed with the MSP34x0D. Digital
demodulation and decoding of NICAM-coded TV stereo sound, is done only by the MSP3410. The MSP34x0D offers a
powerful feature to calculate the carrier field strength, which can be used for automatic standard detection (terrestrial) and
search algorithms (satellite).
General Features
• Two selectable analog inputs (TV and SAT-IF sources)
• Automatic Gain Control (AGC) for analog IF input. Input range: 0.10–3Vpp
• Integrated A/D converter for sound-IF inputs
• All demodulation and filtering is performed on chip and is individually programmable
• Easy realization of all digital NICAM standards (B/G, D/K, I & L) with MSP3410G.
• FM demodulation of all terrestrial standards (incl. identification decoding)
• FM demodulation of all satellite standards
• No external filter hardware is required
• Only one crystal clock (18.432MHz) is necessary
• FM carrier level calculation for automatic search algorithms and carrier mute function
DSP Section (Audio Base band Processing)
• Flexible selection of audio sources to be processed
• Two digital input and one output interface via I 2 S bus for external DSP processors, featuring surround sound, ADR etc.
• Digital interface to process ADR (ASTRA Digital Radio) together with DRP3510A
• Performance of all de-emphasis systems including adaptive Wegener Panda 1 without external components or controlling
• Digitally performed FM identification decoding and de-matrixing
• Digital base-band processing: volume, bass, treble, 5-band equalizer, loudness, pseudo-stereo, and base-width
enlargement
• Simple controlling of volume, bass, treble, equalizer etc.
Analog Section
• four selectable analog pairs of audio base-band inputs (= four SCART inputs) input level : = < 2VRMS,
input impedance : >= 25kW
• one analog mono input (i.e. AM sound): input level : = < 2VRMS , input impedance : > = 15kW
• two high-quality A/D converters, S/N-Ratio : > = 85dB
• 20Hz to 20kHz bandwidth for SCART-to-SCART copy facilities
24CO8
General description:
The 24C16 is a 8Kbit electrically erasable programmable memory (EEPROM), organized as 4 blocks of 256 * 08 bits.
The memory operates with a power supply value as low as 2.5V.
Features:
• Minimum 1 million ERASE/WRITE cycles with over 10 years data retention
• Single supply voltage: 4.5 to 5.5V
• Two wire serial interface, fully I²C-bus compatible
• Byte and Multi-byte write (up to 8 bytes)
• Page write (up to 16 bytes)
• Byte, random and sequential read modes
• Self timed programming cycle