Firmware Upgrade (Ha-3 & Ra-5A Chassis) - Sony KD-34XBR2 Training Manual
Direct view & projection tvs
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Each HA-3 direct view and RA-5A projection TV chassis contains a built-in DTV decoder. Although the main DTV
format is set by the ATSC standard for the US and Canada, changes to the fine DTV transmission will take place
as the format details are ironed out. To maintain future compatibility in the face of changing standards, the DTV' s
flash memory can be upgraded (replaced) with data from a plug-in memory stick.
Upgrade Procedure:
The upgrade requires the technician to insert the memory stick when the TV is OFF. The TV must then be turned
ON to recognize the memory stick and begin the upgrade. The upgrade status LED (TV rear panel above the
memory stick port) begins flashing while the TV' s OSD displays " Memory Upgrade Mode" on the screen. When
the screen goes dark, the upgrade is in progress. All the TV user functions are inhibited until the upgrade is
finished. At the end, the upgrade status LED changes the blink rate to indicate a successful or unsuccessful
upgrade completion. It flashes quickly for success or stays ON for one second. When unsuccessful, it stays OFF
for two seconds while flickering. The memory stick must be removed to resume TV operation or left inserted for
another attempt.
Technical Upgrade Operation
Refer to Figure 13-1 for the technical operation.
QI BD.
IC9209
MIPS CPU
uPD3020d
HB
SYS
BUS
BUS
55
IC9205
XRST
BRIDGE
EMI BUS
uPD82442GN
154
153
156
D0-D15
CE0
CE1 OE
IC9210-2
FLASH
MEMORY
1. The upgrade memory stick must contain two files and supporting data. Insert the Memory Stick into CN7202
(QM Bd) to begin the upgrade. The memory stick brings the INSERT line at CN7202/pin 6 LOW.
2. IC7205 responds by flashing the D7204 LED.
Firmware Upgrade
QM BD.
CN9201/
CN7002
XILM RST
A13
167
EMI
A1-A12
BUS
IC7201-2
FLASH
MEMORY
XMST
RST
FIGURE 13-1 - MEMORY STICK UPGRADE CIRCUIT
Q5V
D7204
UPGRADE
Q7203
163
142
IC7205
139
DIGITAL
PROCESSOR
143
ST20TP4CX605
140
136
166
165
162
TXD
RXD
6
13
IC7209
RESET
63
13. Firmware Upgrade
RB7221
CN7202
22 OHMS
1
2
7
2
3
4
5
4
5
1
8
6
7
3
6
8
9
D3.3V
10
CN8801/CN004
A1
B11
A11
B2
Q7202
GND
BS
D10
MEMORY
STICK
INS
PLUG-IN
SCK
VCC
GRANT (39)
TO B BD.
RXD (36)
MAIN
MICRO
TXD (35)
IC001
BOX
(PINS)
RST (61)
26TVP12 1343 8/30/01
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