Sony PFM-32C1, Service Manual

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3-4
PFM-32C1/32C1E
6. Detecting the communication error with each
device
(1) NO ACK DEV : It indicates if the communication with
the respective devices that are
controlled by the I
2
C bus is correctly
established or not.
Bit 0 : Audio Processor Each bit : 0 : OK 1 : NG
Bit 1 : Audio Switch
Bit 2 : AV Switch
Bit 3 : Closed Caption Decoder
Bit 4 : 3D Combfilter
Bit 5 : Chroma Decoder
Bit 6 : PDP
Bit 7 : Tuner (No Use for PFM)
Bit 8 : Auto Wide Decoder
Bit 9 : AD Converter
Bit 10 : EEP ROM
Bit 11 : IP Converter (System IC)
Bit 12 : OSD (No Use for PFM)
Bit 13 : PLD (No Use for PFM)
Bit 14 : RTC (No Use for PFM)
Bit 15 : Scan Converter (No Use for PFM)
n
Because this model does not contain the AV switch, bit 2
always goes to 1 (high).
This function has the detection of the device containing
error. It does not activate displaying the warning nor
shutting-down operation.
Service Mode
Service Status
Fan & Temp Status
Fan Drive
: OK
Fan : OK
P/S Temp : OK
P/S Temp : 44[ d C]
NO ACK DEV : 0004 (1)
7. Detecting the EEPROM error
If communication with EEPROM is not established
correctly, the “NG” indication is displayed on the corre-
sponding item.
(1) EEP ID : ID CODE error
(2) EEP Save : Data write error
(3) EEP Load : Data read error
8. Detecting decrease of the watch backup
power voltage and detecting abnormal
oscillation
If the watch IC does not work correctly, the “NG” indica-
tion is displayed on the corresponding item.
(1) RTC Init :
Watch initialization error
(2) FTC VDET : Watch power voltage error (1.8 V or
less)
(3) RTC XSTOP : Watch oscillator error
Service Mode
Service Status
Warning Status
EEP ID
: OK (1)
EEP Save : OK (2)
EEP Load : OK (3)
RTC Init : OK
RTC VDET : OK
RTC XSTOP : OK
PDP Init : OK
DEC Init : OK
DC Init : OK
Power Off : OK
Service Mode
Service Status
Warning Status
EEP ID
: OK
EEP Save : OK
EEP Load : OK
RTC Init : OK (1)
RTC VDET : OK (2)
RTC XSTOP : OK (3)
PDP Init : OK
DEC Init : OK
DC Init : OK
Power Off : OK