Sony MB-806A Service Manual page 49

Ic
CPU Pin Description : IC701
CXP83416-051Q
—TOP VIEW—
[Inputs]
Singal Name Pin No. Description
VDD 72 Power supply input +5V
vss 33 GND for power supply input
EXTAL 31 Clock input (8 MHz)
XTAL 32 Clock input
(8 MHz: Phase-reversal of EXTAL)
VLC1 37 Bias voltage input for LCD
vice 38 Bias voltage input for LCD
VLV3 39 Bias voltage input for LCD
ALO 22 Audio signal level (analog) input
RSSI(A) 23 RF signal level of ANTENNA A input
RSSI(B) 24 RF signal level of ANTENNA B input
MODEL 25 Judgment for model type
(L: WRR-802A, H: MB-806A)
ADDRESS 27 Judgment for slot number (MB-806A)
DIST1 28 Selection 1 for destination (model type)
DIST2 29 Selection 2 for destination (model type)
TONE1 13 Tone signal detection (L: detecting)
NOISE 14 Noise signal detection (L: detecting)
TONE2 15 Battery tone signal detection (L: detecting)
PLL LD 16 PLL lock etection (H: Lock)
GP 80 GP operation button
CH 1 CH operation button
+ 12 + operation button
- 18 — operation button
SQL SET 21 RSSI learning mode setting
RST 30 Reset (L: ON)
4-6
[Outputs]
Singal Name Pin No. Description
MODEL 26 Model selection
(L: WRR-802A, MB-806A)
COMO - COM3 38-41 LCDcontrol
SEGO - SEG19 42-61 LCDcontro!
VL 34 Bias voltage control for LCD
LED RF 71 Control for RF LED (H: ON)
LED AF 76 Control for AF LED (H: ON)
LED BATT 20 Control for BATT LED (H: ON)
DIV 66 Diversity contro! (H: ANT A, L: ANT B)
AFM 67 AF muting control (H: Muting OFF)
[Inputs/Outputs for EEPROM and PLL]
Singal Name Pin No. Description
ROM-DO 17 EEPROM control
ROM-CS 68 EEPROM control
ROM-SK/PLL-CLK 69 EEPROM/PLL control
ROM-DI/PLL-DATA 70 EEPROM/PLL control
PLL-LE 77 PLL control
[inputs/Outputs for communication]
Singal Name Pin No. Description
IF-CS 6 Serial /O control
{F-CLK 7 Serial I/O control
\F-DI 8 Serial I/O control
IF-DO 9 Serial I/O control
TEST 78 Test mode (L: ON)
MASTER/SLAVE 10 MASTER/SLAVE communication
[Others}
Singal Name Pin No. Description
PBO/CS1 5 NC
PB6/SH 11 NC
PC6 19 NC
PE5/PWMO 3 NC
PE6/TO/ADJ 4 NC
PD4/SEG20 62 NC
PD5/SEG21 63 NC
PD6/SEG22 64 NC
PD7/SEG23 65 NC
T™ 73 NC
PE1/INT1 79 Connect to GND
PE4/RMC 2 Connect to GND
TEX 74 Connect to GND
— 75 Connect to GND
MB-806A (CE)
WRU-806A (CE, AU)