Read Sony DAV-SZ1000W / HBD-SZ1000W (serv.man2) Service Manual online
1. The audio signal output from the MTK IC(IC1101) will be input to the S-MASTER
PROCESSOR(IC3001 21-23Pin).
2. Control signal from the SYSTEM CONTROL(IC5002 47pin) is input to the S-
MASTER PROCESSOR(IC3001 33pin), where the audio signal’ s volume will be
controlled Each of FRONT CENTER and SUBWOOFER signal is output to the
controlled Each of FRONT CENTER and SUBWOOFER signal is output to the
controlled. Each of FRONT, CENTER and SUBWOOFER signal is output to the
DIGITAL POWER AMP.
DIGITAL POWER AMP.
3. DIGITAL POWER AMP(IC3100) for the FRONT SPEAKER outputs speaker
signal for FRONT L/R.
4. The DIGITAL POWER AMP(IC3300) for the CENTER and SUB WOOFER
speaker output CENTER and SUBWOOFER speaker signal. When the FAN
DRIVE (Q3001 Q3002) detects high output volume the SUB WOOFER the DC
DRIVE (Q3001 Q3002) detects high output volume the SUB WOOFER the DC
DRIVE (Q3001, Q3002) detects high output volume the SUB WOOFER, the DC
FAN(FAN3001) is switched to spin fast.
FAN(FAN3001) is switched to spin fast.
5. Each of DIGITAL POWER AMP(IC3100,IC3300) has built-in temperature sensor.
When temperature exceeds certain level it will output the signal to shut down
(IC3100 5pin/IC3300 5pin) to the SYSTEM CONTROL(IC5002 67pin) to execute
shutting down operation.
(IC3100 5pin/IC3300 5pin) to the SYSTEM CONTROL(IC5002 67pin) to execute
shutting down operation.
6. When DC value exceeding certain level is detected, the signal is sent to the DC
g
,
g
BALANCE PROTECT(Q3551), then it will be output to the SYSTEM
CONTROL(IC5002 66pin) to execute shutting down operation.
CONTROL(IC5002 66pin) to execute shutting down operation.
(Note)
•
When checking or replacing the parts, take proper measures for ESD during
operation to prevent IC damage.
operation to prevent IC damage.
18
operation to prevent IC damage.
Page
Click on the first or last page to see other DAV-SZ1000W / HBD-SZ1000W (serv.man2) service manuals if exist.