Sony KV-32HS500 Training Manual page 12

Memory Stick Interface and Processing Block
HM BOARD
MS-BS+
3.3V
3
B3
FIGURE 2-5 - MEMORY STICK INTERFACE & PROCESSING BLOCK
The Memory Stick® (MS) is inserted into CN7201 on the HM-Board. Once the MS is completely seated
in the slot, the Memory Stick® applies a ground to CN7202/pin 15 (MS-INS), which goes Low (from
3.3V to 0V). This notifies the MS1-Board that a MS has been inserted. Initial data will be transferred at
this time between the HM-Board and MS1-Board and can be viewed at CN7202/pins 5 through 14
(reference Waveforms 2-1 and 2-2). The data signals are all in differential format with a positive and
negative signal. The differential format is incorporated to eliminate noise on the data lines. Data can be
viewed on these pins when the MS is initially inserted and when an image is selected for display on the
CRT.
MEMORY
STICK
MS-SCLK+
MS-DIR+
MS-DIR-
MS-BS-
5 6 7 8
A4 BY A5
B5
DIFF. - AMPS
& BUFFER
MS1 BOARD
MS DECODER BOARD
CN7201
MS-SDO+
MS-SCLK-
MS-SDO-
11
9 10 12
A6 B6 A7 B7
B BOARD
10
2. New Features (DA-4 Chassis)
MS-SDI+ MS-INS
MS-SDI
14
13 15
CN7202
B8 B9
CN3603
A8
MID
CN3601
CN104
C31P15-2-5 1502 11/7/02
TO CRT
DRIVE