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This manual explains circuit operation of HAP-S1 mainly.
As HAP-Z1ES circuit is very similar to HAP-S1, the different points are
explained in the end of this manual.
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This is a block construction of HAP-S1
4.HDD/Audio signal control block controls digital signal processing and analog
1. POWER SUPPLY block supplies each DC voltages for the operation.
2. SYSTEM CONTROL block controls each block by user’s command.
3. Network signal control block controls signal communication with
wired/wireless Network and USB devices.
audio signal output.
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This part explains POWER SUPPLY circuit.
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(1) When AC cord is connected to AC outlet, AC voltage input to SUB
TRANSFORMER(T1901) through Fuse (F1902).
(2) U-COM 3.3V is supplied to SYSTEM CONTROLLER(IC5006) and
SYSTEM CONTROL boots up.
(3) If the operation mode is set to “Network Standby mode”, Network circuit
operates with 1.42V and so on.
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(1) SYSTEM CONTROLLER(IC5006) operates with X5001(4MHz).
(2) SYSTEM CONTROLLER(IC5006) reads the last condition information from
EEPROM(IC5003).
Ex. Last function, volume position, etc.
(3) By detecting POWER key input or Remote commander key input signal,
SYSTEM CONTROLLER(IC5006) starts operation mode.
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(1) SYSTEM CONTROLLER outputs POWER_RY signal(10pin) to turn on
RY1901 and AC voltage is supplied to MAIN POWER TRANSFORMER (T1).
(2) MAIN POWER TRANSFORMER outputs voltage through fuses.
(3) Each voltages are supplied through REGULATORs.
(4) Pulling off the AC cord is checked by AC voltage input. AC voltage input is
checked by SYSTEM CONTROLLER (IC5006 11pin) through Detection
switch(Q1901). If AC voltage decreases, SYSTEM CONTROLLER starts shut
down operation.
Ex. Muting, write the last function information to EEPROM, etc..
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This part explains SYSTEM CONTROL related circuit.
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(1) In operation mode, MPU(IC101) starts operation and read the firmware from
FLASH MEMOR Y (IC501).
(2) MPU(IC101) outputs LCD control signals and LCD shows initial screen.
(3) MPU(IC101) uses SD-RAM(IC301, IC302) for signal processing of HDD,
Wired input and Wireless input and so on.
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(1) SYSTEM CONTROLLER(IC5006) checks AMP circuit temperature by
too high, the condition is detected and sent to MPU(IC101). Then, HDD
thermistor(TH200). If temperature is high, SYSTEM
CONTROLLER(IC5006) send the status to MPU(IC101) and “AMP
PROTECTOR” is displayed on LCD.
(2) “AMP PROTECTOR” is shown on LCD when DC DETECT circuit detects
abnormal current in speaker signal line. (Shortage of speaker line, etc.)
(3) HDD equips self-check function of temperature inside. If HDD temperature is
“
PROTECTOR” is displayed on LCD.
(4) MPU(IC101) equips self-check function of temperature inside. If MPU
temperature is too high, “CPU PROTECTOR” is displayed on LCD.
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(1) MPU(IC101) checks the current in USB VBUS line. If USB VBUS line’s
current is over the limitation, it is detected by MPU(IC101) and “USB
PROTECTOR” is displayed on LCD.
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(1) By detecting temperature condition with thermistor and so on, SYSTEM
CONTROLLER(IC5006) control FAN MOTOR with FAN_EN(89pin) and
FAN_SLOW/FAST(90pin) signals.
(2) There is 3 types of FAN MOTOR speed by temperature condition.
Fan motor speed mode for HAP-S1 is Slow/Mid/Fast, but HAP-Z1ES is
Slow/Fast only.
(NOTE) HAP-S1 equips ventilators in the side panels. If the temperature error
message is displayed in the customer’s environment only, please check the
setting situation around the set well.
FAN motor operation can be checked in test mode.
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This part explains Network signal control related circuit.
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(1) Wired network is connected to LAN connector.
(5)
()
(2) Wired network signal inputs to ETHERNET TRANCEIVER(IC602).
ETHERNET TRANCEIVER(IC602) decodes the network signal physically
and output the logical data to MPU(IC101).
(3) MPU(IC101) decode the logical data and take sound data for playback.
(4) MPU(IC101) uses SD-RAM(IC301, IC302) for decoding the logical data.
MAC ADDRESS for Wired network communication is written in FLASH
MEMORY(IC501).
(6) USB signal is also decoded by MPU(IC101).
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(1) Wireless network signal is detected antenna.
(2) Wireless network signal is decoded by WLANBT COMBO CARD(WBC1)
and logical data is output to MPU(IC101). MAC ADDRESS for Wireless
network communication is written in WLANBT COMBO CARD(WBC1).
(3) MPU(IC101) decodes the logical data and takes sound data for playback.
(4) MPU(IC101) uses SD-RAM(IC301, IC302) for decoding the logical data.
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This part explains Network signal control related circuit.
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(1) When network signal input to each part, MPU(IC101) decode the signal.
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(2) MPU(IC101) sends the sound data to HDD for data recording.
(3) MPU(IC101) reads the sound data from HDD for sound playback. Then,
MPU(IC101) sends the sound data to FPGA(IC001) for sound processing.
(4) FPGA(IC001) and AUDIO DSP(IC702) operates Audio digital signal
rocessing.
FPGA(IC001) operates for over sampling processing and AUDIO DSP(IC702)
operates DSEE signal processing. The processed sound data is sent back from
AUDIO DSP(IC702) to FPGA(IC001).
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(1) FPGA(IC001) outputs processed HDD sound data to DATA/CLOCK
(3)
DATA/CLOCK SELECTOR(IC4007) selects the sound data from HDD or
SELECTER(IC4007).
(2) OPTICAL and COAXIAL digital signals input to DIGITAL AUDIO
INTERFACE RECEIVER(IC4004). DIGITAL AUDIO INTERFACE
RECEIVER selects the output signal by signal communication with
SYSTEM CONTROLLER(IC5006). The selected PCM signal is input to
DATA/CLOCK SELECTOR(IC4007).
DIGITAL IN by SYSTEM CONTROL(IC5006).
(4) D/A CONVERTER(IC405) converts the digital sound data to analog
differential sound signals and output to LINE AMP(IC401, IC402).
(5) Analog sound signal outputs through LINE AMP(IC401, IC402) and MIX
AMP(IC400).
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(1) Analog sound signal is output to D/A DIRECT LINE OUT. This output is
(3)
LINE IN signal inputs through RELAY(RY202). RELAY is controlled by
(5)
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muted by MUTING SWITCH(Q217-Q219) from SYSTEM
CONTROLLER(IC5006)’s muting control signal when this set boot or shut
down.
(2) Analog sound signal is output to TONE CONTROL ELECTRICAL
VOLUME(IC206) through RELAY(R Y203). RELAY is controlled by
SYSTEM CONTROLLER(IC5006).
SYSTEM CONTOLLER(IC5006).
(4) TONE CONTROL ELECTRICAL VOLUME(IC206) adjusts sound signal.
The output is muted by MUTING SWITCH(Q209,Q210) from SYSTEM
CONTROLLER(IC5006)’s muting control signal when this set boot or shut
down.
Analog sound signal is output to SPEAKER terminal through POWER
AMP(IC350, IC351) and RELAY(RY201).
(6) The connection of Head Phone is detected by SYSTEM
CONTROLLER(IC5006) HP DETECT(2pin). Analog sound signal outputs to
PHONES terminal through RELA Y(RY200).
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This part explains the different points between HAP-S1 and HAP-Z1ES. Please
refer the block diagram of HAP-Z1ES in this part only.
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(1) When remote commander learning operation starts, REMOTE
(2)
SSOR(IC
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O CO CO G OC SSO ( C )
remote control signal to IR REMOTE OUT terminal. The signal is output to
COMMANDER CODE LEARNING PROCESSOR(IC7007) turns on
switch(Q1002) and activates LEARNING CODE GENERATOR(IC1001).
Then, LEARNING CODE TRANSMITTER(D1001) receives remote
commander signal and LEARNING CODE GENERATOR outputs the logical
data to REMOTE COMMANDER CODE LEARNING
PROCESSOR(IC7007).
REMOTE COMMANDER CODE LEARNING PROCE
analyze the input data and record the result inside.
(3) When remote commander signal is detected by REMOTE CONTROL
RECEIVER(IC1002) and remote control is necessary, it is transferred to
REMOTE COMMANDER CODE LEARNING PROCESSOR(IC7007)
through SYSTEM CONTROL(IC7002) and MPU(IC101). Then, REMOTE
COMMANDER CODE LEARNING PROCESSOR(IC7007) outputs the
other set through Monaural mini-plug cable or IR blaster.
7007)
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(1) HAP-Z1ES equips another AUDIO DSP(IC601). This DSP operates DSD re-
mastering processing for better sound quality. The clock of AUDIO
DSP(IC601) is changed from 6MHz to 10MHz for this processing.
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(1) HAP-Z1ES uses individual D/A CONVERTER(IC201, IC251) for two
channel outputs.
(2) Balanced LINE OUT is output through LINE AMP(IC202, IC252), Low-pass
Filter(IC203, IC253) and RELAY(RY202, RY252).
(3) UNBALANCED LINE OUT is output through MIX AMP(IC204) and
RELAY(RY201).
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This part explains some notes in instruction.
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