Sony STR-DA6400ES (serv.man4) Service Manual ▷ View online
17
CONNECTED MEDIA PROCESSOR (IC8013) starts to read the
operation firmware from FLASH ROM (IC8001). Then, CONNECTED
MEDIA PROCESSOR (IC8013) starts to communicate with SYSTEM
CONTROLLER through PARALLEL BUS/I2C BUS CONVERTER
(IC8201 18,19pin).
MEDIA PROCESSOR (IC8013) starts to communicate with SYSTEM
CONTROLLER through PARALLEL BUS/I2C BUS CONVERTER
(IC8201 18,19pin).
18
CONNECTED MEDIA PROCESSOR (IC8003) reads the MAC
address and setting data from EEPROM (IC8005) for the network
communication.
communication.
(NOTE) Network update check mode
In European model only, Network update check mode is included in
“Network debug menu” in “SPECIAL MENU MODE”. When you press
“ENTER” key in this mode, the result of network update path checking is
displayed without connecting to network.
“ENTER” key in this mode, the result of network update path checking is
displayed without connecting to network.
OK
:“NET UPDATE CHK OK”
MAIN NG
:“NET UPDATE CHK NG M”
VIDEO NG
:”NET UPDATE CHK NG V”
DSP NG
:“NET UPDATE CHK NG D”
Even if MAIN/VIDEO/DSP is NG, there is a possibility that a failure
occurs in Network board. (Ex. Poor soldering of address or data line) So,
please use the failure part information as a reference.
please use the failure part information as a reference.
19
Analog composite video signal which is input from “VIDEO 1”,
“VIDEO 2”, “BD VIDEO IN”, “DVD VIDEO IN”, “SAT VIDEO IN”
and “DMPORT 1/2” is selected and amplified in VIDEO INPUT
SELECT / VIDEO AMP (IC6007).
and “DMPORT 1/2” is selected and amplified in VIDEO INPUT
SELECT / VIDEO AMP (IC6007).
Depends on the setting signal from SYSTEM CONRROL (IC2513
62pin) to VIDEO SELECT / VIDEO AMP (IC8007 44pin), the signal
outputs to three ways.
outputs to three ways.
One output is from SYOUT (19pin) to “VIDEO 1” or “MONITOR
OUT” through VIDEO AMP (IC6002). Second one is from CVOUT1
(53pin) for MAIN ZONE and third one is from CVOUT2 (21pin) for 2nd
ZONE.
(53pin) for MAIN ZONE and third one is from CVOUT2 (21pin) for 2nd
ZONE.
20
Analog component video signal which is input from “COMPONENT
VIDEO“ is selected and amplified in VIDEO INPUT SELECT / VIDEO
AMP (IC6004).
AMP (IC6004).
Depends on the setting signal from SYSTEM CONRROLER (IC2513
62pin) to VIDEO SELECT / VIDEO AMP (IC8007 44pin), the signal
outputs to MAIN ZONE and 2nd ZONE. For MAIN ZONE, signal
outputs from Y OUT 1 (34pin), Pb OUT 1 (32pin) and Pr OUT 1 (30pin).
For 2nd ZONE, signal outputs from Y OUT 2 (27pin), Pb OUT 2 (24pin)
and Pr OUT 2 (21pin).
outputs to MAIN ZONE and 2nd ZONE. For MAIN ZONE, signal
outputs from Y OUT 1 (34pin), Pb OUT 1 (32pin) and Pr OUT 1 (30pin).
For 2nd ZONE, signal outputs from Y OUT 2 (27pin), Pb OUT 2 (24pin)
and Pr OUT 2 (21pin).
Sync signal in component video signal for each ZONE is sent to
SYSTEM CONTROLLER through SYNC DETECT (IC6008, IC6009)
and the existence of component output is detected by SYSTEM
CONTROLLER (IC2513 122pin, 136pin).
and the existence of component output is detected by SYSTEM
CONTROLLER (IC2513 122pin, 136pin).
In DIRECT mode, component video input signal outputs to
COMPONENT VIDEO MONITOR OUT through VIDEO INPUT
SELECT / VIDEO AMP (IC6001).
SELECT / VIDEO AMP (IC6001).
(Troubleshooting) Analog signal circuit
Please check I/O signal to each IC in the signal route. Then, please find
the part which the signal flow stops. This is the basic signal checking for
analog signal circuit.
analog signal circuit.
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