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TECHNICAL DESCRIPTION
CONTENTS
4.1 4.2 PRODUCT OUTLINE ...................................................................................................................4-1 MECHANISM................................................................................................................................4-1 4.2.1 4.2.2 4.2.3 4.2.4 4.2.5 4.2.6 4.2.7 4.3 Mechanism out line ..........................................................................................................4-1 Regarding standard cassette ...........................................................................................4-1 Cassette housing operation outline..................................................................................4-2 Switches ...........................................................................................................................4-4 Reel motor........................................................................................................................4-4 Tension.............................................................................................................................4-4 Mode sensor ....................................................................................................................4-5

SYSTEM CONTROL.....................................................................................................................4-5 4.3.1 4.3.2 4.3.3 4.3.4 4.3.5 4.3.6 Outline ..............................................................................................................................4-5 Communication specifications..........................................................................................4-5 Communication timing......................................................................................................4-5 SYSCON (IC2001) CPU port functions............................................................................4-6 MSD CPU (IC302) port functions .....................................................................................4-8 RS-422A command list ....................................................................................................4-14

SECTION 4 TECHNICAL DESCRIPTION
4.1 (1) (2) (3) (4) 4.2 PRODUCT OUTLINE DV Standard/Mini cassette compatible 4.5 hours consecutive recording/playback possible using Standard cassette (DV270) 5.25-inch half hight bay size compact design (mechanism unit only) Layout-free with horizontal and vertical positioning capability MECHANISM

4.2.1 Mechanism out line Item Compatible cassette Loading system Head cleaner Reel drive FWD/REV reel switching Tension control AG-DV2500 Mini/Standard Cassette compatible Front loading Yes (solenoid) Reel motor (1 motor) Swing gear switching Tension band method (SUP/TU dual control)

4.2.2 Regarding standard cassette AG-DV2500 is newly compatible with DV standard size cassettes. Fig. 4.2.1 shows a size comparison with conventional Mini cassette. All dimensions differ, including cassette thickness in addition to height and width. · Mini Cassette
66

48

14

.9

12.2

32.5

· Standard Cassette
125

78

38.7

5

14.6

61.6

Fig. 4.2.1 Comparison Between Mini Cassette and Standard Cassette

4-1

4.2.3 Cassette housing operation outline (1) Inserted cassette type detection In its initial state, the reel disk is in the standard position, and only when a mini cassette is inserted it changes to the mini cassette position. As explained in Section 2, it is the reel change plate (Fig. 4.2.5) that changes the position of the reel disk. As previously compared in 4.2.1, the thickness of standard and mini cassettes differ. Standard cassette thickness : 14.6 mm Mini cassette thickness : 12.2 mm Based on this difference, it is differentiated within the cassette housing whether the inserted cassette is standard or mini. 1) When a mini cassette is inserted The reel disk position changes to the mini cassette position at the same time the cassette housing performs the intake movement. The reel change bracket (Fig. 4.2.3) located on the right side of the cassette housing is linked to the reel change plate (Fig. 4.2.4), so when the cassette housing intake movement occurs the reel change plate also moves, thereby changing to the mini cassette position.

Cassette Holder Bar
Fig. 4.2.2 Cassette Holder Bar

Cassette Holder Bar Reel Change Bracket
Fig. 4.2.3 Reel Change Bracket

2) When a standard cassette is inserted The cassette holder bar (Fig. 4.2.2) is pushed up for the amount of thickness differential in relation to mini cassette, and in conjunction the reel change bracket (Fig. 4.2.3) located on the right side of the cassette housing moves upward. As a result, the link with the reel change plate (Fig. 4.2.4) becomes free, and the reel disk becomes held in the standard position even while the cassette housing is undergoing the intake movement.

Reel Change Plate

Fig. 4.2.4 Reel Change Plate

4-2

(2) Mini Cassette Incorrect Insertion Prevention Function

Sub Flap

Fig. 4.2.5 Sub Flap Sub flaps are attached on the cassette guide assembly located on the bottom end of the cassette housing door. These two sub flaps are designed to open when both are pressed simultaneously, and in the case of a mini cassette it is impossible for both to be pressed at the same time. So even if an inserted mini cassette touches against one of the sub flaps, the sub flaps will act as a brake to prevent erroneous loading of a mini cassette. CAUTION Even with standard cassettes, if the cassette is inserted skewed or diagonally offset in relation to the sub flaps, the sub flaps may not open and cassette insertion may not be possible. When inserting a standard cassette, be sure to insert so that the sides are parallel to the sub flaps.

(3) Intake/Eject Detection Two housing switches (HW, HW2) are equipped on the front left side of the main deck. (See Fig. 4.2.6) In the initial status in which no cassette is inserted (NO cassette mode), switch HW is pressed and switch HW2 is not pressed.
HW HW2

Mode EJECT (Initial) INTAKE Detect INTAKE END EJECT END

HW ON OFF OFF ON

HW2 OFF OFF OFF ON

S3 OFF OFF ON OFF

Fig. 4.2.6 Cassette Housing Switch

Table 4.2.1

: When a cassette is inserted, the HW switch goes OFF, which causes detection of cassette insertion. After this the motor begins intake action. Intake complete : When cassette intake is completed, in conjunction with the housing movement the main deck's switch lever slides, causing the MECHA board S3 (cassette switch) to be pressed, and intake completion is detected. (See Fig. 4.2.7) Eject : When ejecting the cassette, both switches HW and HW2 are momentarily ON, and eject completion is detected. And from here, it returns to the initial status of switch HW=ON, HW2=OFF.

Intake

4-3

4.2.4 Switches This is a description of how the various switches equipped on the mechanism operate, as shown in table 4.2.2. Switch name HW HW2 S1 (Mecha board) S2 (Mecha board) S3 (Mecha board) Operation Cassette intake detection switch Cassette eject detection switch Standard cassette detection switch SUP reel lock release switch* Cassette intake completion detection switch Table 4.2.2 Switches * Condition of SUP reel lock release switch operation : After cassette intake, tape is pulled out of the take-up side for loading, but when a virgin tape is inserted it switches over to pull out from the supply side since it is not possible to pull out from the take-up side. Immediately following tape intake completion, when the Begin sensor detects tape leader the cassette housing motor moves further to the loading side and, after the switches lever release the SUP brake, S2 is turned ON and brake release is detected. Location Fig. 4.2.6 Fig. 4.2.6 Fig. 4.2.7 Fig. 4.2.7 Fig. 4.2.7
1 2 3

Sup Reel Lock S1 S2 S3
1 2 3

HW HW2 Switch lever

Fig. 4.2.7 Switch Location 4.2.5 Reel motor The AG-DV2500 has adoped an independent one-reel motor, besides a capstan motor. As a result, quicker response when switching from Play to Reverse Search or Forward Search modes has been attained, greatly improving operability and the durability. And as shown in table 4.2.3 the speeds of capstan search and FF/REW are also accelerated. AG-DV2500 CAPSTAN Search SPEED FF/REW TIME Mini (DVM60) Standerd (DV270) Approx. 20X speed Under 75 sec. Under 200 sec. Table 4.2.3 4.2.6 Tension The AG-DV2500 have double tension control for supply/take-up. The AG-DV2500 uses double tension control to regulate the tension differential caused by winding and modes used, obtaining a uniform tape tension for stable tape transport.

4-4

4.2.7 Mode sensor The AG-DV2500's mode sensor adopts the variable resistor method (MECHA board VR1) which uses changes in resistance to detect the position of the mechanism. The changed voltage, brought about by changes in the resistance value due to mechanism position, is sent to DV/CPU IC302 to made to the A/D conversion. The mechanism position is judged by this. Mode sensor voltage 0.273 ± 0.03 V 1.314 ± 0.03 V 1.691 ± 0.03 V 2.111 ± 0.03 V 2.716 ± 0.03 V Mechanism position UNLOAD END position BRAKE position FAST position STOP position SEARCH position NO CASSETTE MODE FF/REW Modes in which tension band is used as brake for stopping FF/REW MODE STAND-BY OFF PLAY/REC/SEARCH/STAND-BY ON Mode

Table 4.2.4 Voltage and Mechanism Position Comparison * Voltage figures shown are target values for software control, and may differ somewhat from the actual voltage. Please regard them as rough estimates.

4.3

SYSTEM CONTROL

4.3.1 Outline The control system is comprised of the SYSCON CPU (IC2001) on the MAIN board assembly, and the VCR (MSD) CPU (IC302) on the DV/CPU board assembly. Both of these are connected by a bus called the MS_BUS, and communicate via serial data transfer . Communication type Communication speed Data length Bit order Clock generation source Data direction Clock synchronous serial communication 1.68 Mbps 8bit x 25 MSB head SYS CPU Full duplex Table 4.3.1 MS_BUS Communication Settings Fig. 4.3.1 MS BUS Connection 4.3.2 Communication specifications (1) SYSCON CPU turns the CS from "L" "H" and communication begins. (2) SYSCON CPU confirms that the BUSY terminal is "L", and transmits data at CLOCK1.68MHz as well as receives data from the VCR (MSD) CPU. (3) VCR (MSD) CPU also sends and receives data in accordance with CLK. However, if it is not yet ready for communication it sets the BUSY terminal to "H" and notifies the SYSCON CPU. (4) When the BUSY terminal is "H", SYS CPU skips the current communication and waits until the next block (400 µs later) to see if it is "L" and then starts communication. (5) After 25 Bytes are communicated, CS is set to "L" and communication ends. 4.3.3 Communication timing In synchronization with internal reference sync, communication takes place once every 16.6 ms (NTSC) or 20 ms (PAL). Byte interval is 400 µs. When necessary the contents of the communication are changed at the 1st2nd field.

CS(H) CLOCK SYS CPU DATA1 DATA2 BUSY(H) VTR (MSD) CPU

4-5

4.3.4 SYSCON (IC2001) CPU port functions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Port Name PE5 PE6 PE7 PD0 PD1 PD2 PD3 PD4 PD5 PD6 PD7 CVCC PC0 VSS PC1 PC2 PC3 PC4 PC5 PC6 PC7 PB0/TIOCA3 PB1/TIOCB3 PB2/TIOCC3 PB3/TIOCD3 PB4/TIOCA4 PB5/TIOCB4 PB6/TIOCA5 PB7/TIOCB5 PA0 PA1/TxD2 PA2/RxD2 PA3/SCK2 P10/TIOCA0 P11/TIOCB0 P12/TIOCC0/TCLKA P13/TIOCD0/TCLKB P14/TIOCA1/IRQ0 P15/TIOCB1/TCLKC P16/TIOCA2/IRQ1 P17/TIOCB2/TCLKD AVSS P97/DA1 P96/DA0 P47/AN7 P46/AN6 P45/AN5 P44/AN4 P43/AN3 P42/AN2 Reference TP2004 HOUSING_SW CASS_SW DAC_CS (H) 165_CS 4094_CS AUD_DACTL_CS (L) 66311_DATA PON_MAIN (H) PON_UNIT (H) AUDREF12 (H) Power supply SDI Power supply S_DATA S_CLK AUDIN_MUTE (H) AUD_SYS_MUTE AUDOUT_SMUT AUD_DACTL_CK AUD_DACTL_DT 66311_CLK 66311_CSK WIRELESS_REM SERIAL_REM NTSC (L) BWO (L) CPS (L) 66311_RST ODD_EVEN SYSCPU_TRXD SYSCPU_TTXD SYSCPU_TCK E2_DI E2_DO E2_CLK E2_CS RTC_INT RTC_CS RTC_CLK RTC_SIO Analog GND I/O I I O O O O O O O O +3V I GND O O O O O O O O O I I O O O O I O I I O O O I O O I/O GND Description Not used H : Insert cassette tape L : Complate to intake cassette tape IC201 chip select IC2006/IC2007 chip select IC3009/IC3010 chip select IC1006 (AUDIO DA) chip select IC2008 data

Corresponds to audio level for consumer VTR. IC2006/IC2007 serial pin. IC2008/IC2010/IC201 IC2006/IC2008/IC2009/IC2010/IC201 clock For muting the audio input For muting the audio output For muting the search level Audio DA clock Audio DA data IC208 clock IC208 data Wireless remote input Serial remote input VIDEO VIDEO VIDEO IC2008 RESET TCCS (For factory use) YDC clock input EEPROM

RTC (Real time clock) IC2002

Not used Not used Not used Not used Not used Not used CIN_DC LEVEL_DET_DC I I Low battery detection

4-6

Pin No. 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100

Port Name P41/AN1 P40/AN0 Vref AVCC MD0 MD1 OSC2 OSC1 RES NMI STBY VCC XTAL VSS EXTAL FEW MD2 PF7/" PF6 PF5 PF4 PF3/-ADTRG/IRQ3 PF2 PF1/BUZZ PF0/IRQ2 P30/TxD0 P31/RxD0 P32/SCK0/SDA1/IRQ4 P33/TxD1/SCL1 P34/RxD1/SDA0 P35/SCK1/SCL0/IRQ5 P36 P77/TxD3 P76/RxD3 P75/TMO3/SCK3 P74/TMO2/MRES P73/TMO1 P72/TMO0 P71/TMRI23/TMCI23 P70/TMRI01/TMCI01 PG0/IRQ6 PG1/IRQ7 PG2 PG3 PG4 PE0 PE1 PE2 PE3 PE4

Reference METER_CH1 METER_CH2 Analog reference Analog power Mode terminal 0 Mode terminal 1 Subclock (32.768kHz) Subclock (32.768kHz) Reset input NMI Standby Power Clock Power External clock Flush light enable Mode terminal 2 System clock (TP2002) SWIN_NTSC TP2021 FAN_STOP (H) OPERATE EJECT TP2023 WAKE_UP OSD_DATA OSD_CS OSD_CLK 422_Tx 422_Rx 8029VD OSD_RST MS_OUT MS_IN MS_CLK SCR_LR SCR_UD V_MUTE MSD_RESET MSD_CS SYS_OUTV SYS_INV MSD_READY 8029CS 8029CLK 8029SDI 8029SDO 8029RST 8029AMUTE V_PB (H)

I/O I I +3V I I I I I I I +3V I GND I I I O I I I I I O O O O I I O O I O I I O O I I O O O O I O O O AUDIO indicator

Description

Pullup (not used) Pullup (not used) X2002 From IC2004 Pullup (not used) Pullup (not used) X2001 X2001 For Rewrite Operation mode setup REAR NTSC/PAL slid SW Not used Not used Operate SW Pull-up from EJECT SW AL3V Not used Start interrupt key input from standby mode OSD (UART0)

RS-422 (UART1) IC208 CSYNC OSD MS BUS (UART3)

Not used Not used Reset output to VCR (MSD) microcomputer Interface with VCR (MSD) microcomputer VIDEO V TIMING Interface with VCR (MSD) microcomputer IC208 control

VIDEO

Table 4.3.2 SYSCON Terminal Function 4-7

4.3.5 MSD CPU (IC302) port functions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 -- 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 Port Name ND ND VSS P01/D1 P05/D5 P11/D9 NC (VDDF) VSS P26/D22/SBI1 P30/D24/SBT1 P35/D29/SBO3 P40/PWM1/TM0IO P51/IRQ1 P57/IRQ7 NC (VDDF ) P61/IRQ9 ND VDDH VOUT P14/D12 P03/D3 P07/D7 P13/D11 P20/D16/SBIB P22/D18/SBTB P32/D26/SBO2 VDDH VSS P53/IRQ3 P25/D21/SBT0 P33/D27/SBT2 P63/IRQ11 ND ND PU1/WE3/SRAS LON NMIRQ VDDH P04/D4 P06/D6 P15/D13 P17/D15 NC (VSS) P23/D19/SBI0 P31/D25/SBI2 P37/D31/PWM0 P41/PWM2/TM1IO P43/PWM4 P34/D28/SBI3 P54/IRQ4 Reference OPEN OPEN D_GND STD_CASS_SW START_SEL_2 REEL_FWD_CTL VOUT_25 D_GND EEPR_SDI EEPR_SCL MS_IN DRUM_REF DRUM_FG GND (10k) VOUT_25 GNDÅi10kÅj OPEN AL_3VSYS VOUT_25 HOUSING_IN HOUSING2_SW END_SEL_2 HOUSING_SW CLN_SOL MSD_RDY LED_1SW AL_3VSYS D_GND GND (10k) MIC_3 EEPR_CS GND (10k) OPEN OPEN OPEN AL_3VSYS (1k ) AL_3VSYS AL_3VSYS START_SEL_1 END_SEL_1 HOUSING_OUT CAP_BRK D_GND MIC_1 LED_2_SW CAP_REF MECHA_REF OPEN MS_OUT GND (10k) I/O I O O I I O O O I O I O I O O I O I O O O I O O O O O I O I O O O O O O O O O I O Description Not used Not used GND for digital Standard cassette switch Standard sensor sensibility selection Reel motor direction control Power for digital GND for digital For EEPROM communication For EEPROM communication Data for MS_BUS communication DRUM_REF (MDA) DRUM_FG Not used Power for digital Not used Not used Power for digital Power for VDD and VDDF Housing control HW2/mini cassette eject switchs End sensor sensibility Housing control Cleaner solenoid drive For MS_BUS communication Front panel LED 1 Power for digital GND for digital Not used CLK for cassette MIC communication For EEPROM communication Not used Not used Not used Not used Use for regulator Not used Power for digital Standard sensor sensibility selection End sensor sensibility selection Housing control MDA control GND for digital For cassette MIC communication Front panel LED2 CAP_REF (MDA) Mode/Housing motor control voltage Not used Data for MS_VUS communication Not used

4-8

Pin No. 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 -- 108 109 110 111 112

Port Name P62/IRQ10 P80/ICR0 P81/ICR1 PT2/SBT9 PS1/SBO4 PU0/WE2/SCAS PS3/SBI5 VOUT P00/D0 VSS VDDH P16/D14 P24/D20/SBO0 VSS P42/PWM3/TM2IO P55/IRQ5 P52/IRQ2 P56/IRQ6 P84/ICR4 VSS P60/IRQ8 P83/ICR3 PS4/SBO5 PT0/SBI9 PR4/A23/KI4/SDCLKO PS5/SBT5 PT1/SBO9 VSS P02/D2 P10/D8 P12/D10 P21/D17/SBOB P27/D23/SBO1 P36/D30/SBT3 P50/IRQ0 ND P90/ICR8 P82/ICR2 P86/ICR6 P85/ICR5 P87/ICR7 PR6/A25/KI6 PS2/SBT4 VDDH VSS ND NC (VSS) VDD2 P92/ICR10 VSS

Reference GND DRUM_FG CAP_FG OPEN MDA_IN OPEN OPEN VOUT_25 TAPE_LED D_GND AL_3VSYS MECHA_VM_CTL MIC_2 D_GND REEL_REF GND (10k) DRUM_PG GND(10k) SUP_REEL_SENSOR D_GND GND (10k) TU_REEL_SENSOR OPEN OPEN GND (10k) OPEN OPEN D_GND SP_LOCK_SW REEL_BRK CASETTE_SW A_MUTE EEPR_SDO MS_CLK MSD CS OPEN FRP REEL_FG SRV_FRP HID1 DET_VD GND (10k) MDA_CLK AL_3VSYS D_GND OPEN D_GND AL_3VSYS SPA D_GND

I/O O I I O O O O O O I O O O O I O I O I O O O O O I O I O O I I I I I I I O O I I I -

Description Not used DRUM_FG CAP_FG Not used For MDA communication Not used Not used Power for VDD and VDDF For TAPE_LED GND for digital Power for digital Switching the MECHA VM For cassette MIC communication GND for digital Reel motor control voltage Not used DRUM_PG Not used SUP_REEL_SENSOR GND for digital Not used TU_REEL_SENSOR Not used Not used Not used Not used Not used GND for digital SP lock detection switch Reel motor brake CASSETTE SW Audio mute EEPROM communication CLK for MS_BUS communication MSD CS Not used Interface with IC103 Reel FG input Interface with IC103 Interface with IC103 Analog input detection Not used For MDA communication Power for digital GND for digital Not used GND for digital Power for digital Interface with IC103 GND for digital

4-9

Pin No. 113 114 115 116 117 118 119 -- 127 128 129 130 131 132 133 134 135 136 137 138 -- 146 147 148 149 150 151 152 153 154 155 156 157 -- 165 166 167 168 169 170 171 172 173 174 175 176 -- 184 185 186 187 188 189 190 191 192 193 194

Port Name P91/ICR9 PR3/A22/KI3/SCKE PR5/A24/KI5/SDCLKI PQ2/A18 PS0/SBI4 PR7/KI7/PWM5 ND PA1/SBO6 P94/ICR12 PA3/SBI7 PA0/SBI6 PA2/SBT6 PQ1/A17 PR0/A19/KI0 PQ0/A16 PR2/A21/KI2/SWE PR1/A20/KI1 ND PB3/WDOVF P93/ICR11 PA5/SBT7 PA4/SBO7 PB2/IRQ14 VSS PL5/PWM6 PL4/TM7IO PL3/TM6IO PL2/TM5IO ND PC3/SY0OT3 PB0/IRQ12 PB1/IRQ13 PB4/BR VSS PL0/TM3IO PK6/TM36IO PL1/TM4IO PK4/TM34IO PK3/TM33IO ND PC5/SY1OT1/SBO8 PC0/SY0OT0 PB5/BG PC2/SY0OT2 PC4/SY1OT0/SBI8 OSCI PK2/TM32IO PK0/TM30IO VDD VSS

Reference TSR GND (10k) GND (10k) DV_RST MDA_CS GND (10k) OPEN OPEN SRV_TRK OPEN OPEN OPEN CLK27SEL GND (10k) NTSC_L GND (10k) GND (10k) OPEN OPEN OUT_V OPEN OPEN OPEN D_GND OPEN V_MUTE OPEN SCR_UD OPEN OPEN OPEN INV OPEN D_GND OPEN HID3 SCR_LR PBH REEL_LED OPEN OPEN HID1 OPEN OPEN OPEN Supply the external clock REC_SAFE OPEN VOUT_25 D_GND

I/O I O O O O O O I O O O O O I O O O I O O O O I O O O I O O O O O O O O O I I I O I -

Description Interface with IC103 Not used Not used Interface with IC103 For MDA communication Not used Not used Not used Interface with IC103 Not used Not used Not used Interface with IC103 Not used NTSC_L Not used Not used Not used Not used MVD0 (DVSYS) Not used Not used Not used GND for digital Not used V MUTE (DVSYS) Not used Not used Not used Not used Not used ODD/EVEN distinguish Not used GND for digital Not used Interface with IC1 Not used Interface with IC1 TU_REEL_LED Not used Not used TO P/R IC1 Not used Not used Not used 40MHz REC_SAFTY_SW Not used Power for digital GND for digital

4-10

Pin No. 195 -- 203 204 205 206 207 208 209 210 211 212 213 214 -- 222 223 224 225 226 227 228 229 230 231 232 233 -- 241 242 243 244 245 246 247 248 249 250 251 -- 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278

Port Name ND VSS PD0/TM10IO PC1/SY0OT1 VDD2 PC6/SY1OT2/SBT8 OSCO FRQS PK7/TM37IO CKSEL MMOD1 ND NC (VSS) PE1/TM20IOB PC7/SY1OT3 PD3/TM13IO PD2/TM12IO MMOD0 PJ1/EXMOD1 PK5/TM35IO VDDH PVSS ND VDD PE7/TM23IOB PD1/TM11IO PE3/TM21IOB PD5/TM15IO PVDD PP7/ADM15/A15 PK1/TM31IO RST ND PE4/TM22IOA PD4/TM14IO PE5/TM22IOB VDD2 PP5/ADM13/A13 PP3/ADM11/A11 PP4/ADM12/A12 VSS VSS ND VDD VSS P70/AN24 PI6/AN22 PI0/AN16 PH0/AN8 PG0/AN0

Reference OPEN D_GND OPEN OPEN AL_3VSYS OPEN VTR_TAUX MONI_CHG VTR_TTxD VTR_TCK OPEN D_GND GND (10k) OPEN OPEN OPEN VTR_TRXD VTR_TAUX3 REC_H AL_3VSYS A_GND OPEN VOUT_25 GND (10k) OPEN FFREW_H OPEN AL_3VSYS ADM15 OPEN VTR_RESET OPEN GND (10k) OPEN GND (10k) AL_3VSYS ADM13 ADM11 ADM12 D_GND D_GND OPEN VOUT_25 D_GND GND (10k) GND (10k) GND (10k) THERM_MSD START_SENSOR

I/O O I O I O I I O O O I I O I I I O O O O I I/O O I O O O I I/O I/O I/O I I I

Description Not used GND for digital Not used Not used Power for digital Not used 40MHz For rewrite Interface with P/R For rewrite For rewrite Not used GND for digital Not used Not used Not used Not used For rewrite For rewrite Interface with P/R Power for digital GND for analog Not used Power for digital Not used Not used Not used Not used Power for analog Interface with IC103 Not used For rewrite Not used Not used Not used Not used Power for digital Interface with IC103 Interface with IC103 Interface with IC103 GND for digital GND for digital Not used Power for digital GND for digital Not used Not used Not used Temperature sensor START_SENSOR

4-11

Pin No. 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328

Port Name ND TRST PF0/TM24IOA PE2/TM21IOA PE0/TM20IOA PF1/TM24IOB PP1/ADM9/A9 PJ0/EXMOD0 PO4/ADM4/A4 PO7/ADM7/A7 PO1/ADM1/A1 PN5/AS PN4/DK PM4/CS4 VDDB PI4/AN20 PI1/AN17 PH1/AN9 PG1/AN1 VREFH VDD TMS PE6/TM23IOA PF2/TM25IOA PF3/TM25IOB PP0/ADM8/A8 PP6/ADM14/A14 PP2/ADM10/A10 PN3/RE PN1/WE1/SDQM1 PM2/CS2 PM5/RWSEL PM0/CS0 PI2/AN18 PH6/AN14 PH7/AN15 PH4/AN12 PH2/AN10 PG4/AN4 PG2/AN2 VREFL PV1/SBOA TCK TDI ND ND VDDB PO2/ADM2/A2 PO5/ADM5/A5 VDD

Reference OPEN VSS (10k) OPEN DRUM_FG GND (10k) OPEN ADM9 GND (10k) ADM4 ADM7 ADM1 DALE DV_WAIT OPEN AL_3VSYS GND (10k) GND (10k) REEL_CURENT END_SENSOR AL_3VSYS (for analog) VOUT_25 VDD2 (10k) GND (10k) OPEN GND (10k) ADM8 ADM14 ADM10 DRE OPEN DV_CS RWSEL OPEN GND (10k) EJECT_MSD GND (10k) GND (10k) REEL_ECR MIC_2 DEW_SENSOR A_GND DAC_DATA VDD2 (10k) VDD2 (10k) OPEN OPEN AL_3VSYS ADM2 ADM5 VOUT_25

I/O O O O O I/O I I/O I/O I/O O I O I I I I I O O O I/O I/O I/O O O O O O I I I I O I I/O I/O I

Description Not used Not used Not used DRUM_FG Not used Not used Interface with 3.5LSI Memory mode selection Interface with IC103 Interface with IC103 Interface with IC103 Interface with IC103 Interface with IC103 Not used Power for digital Not used Not used Reel motor current E_SENSOR A/D GND (H) Power for digital Not used Not used Not used Not used Interface with IC103 Interface with IC103 Interface with IC103 Interface with IC103 Not used Interface with IC103 Interface with IC103 Not used Not used EJECT brings up Not used Not used Reference value for reel torque control AD for MIC IDBOARD detection DEW_SENSOR A/D GND (L) D/A control Not used Not used Not used Not used Power for digital Interface with IC103 Interface with IC103 Power for digital

4-12

Pin No. 329 330 331 332 333 334 335 336 337 338 339 340 -- 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 -- 360

Port Name VSS PN0/WE0/SDQM0 PM1/CS1 PI7/AN23 PI3/AN19 PH3/AN11 PG5/AN5 AVDD VSS PG6/AN6 PV2/SBTA ND PO6/ADM6/A6 PO3/ADM3/A3 VDDB PO0/ADM0/A0 PN2/SYSCLK PM3/CS3 VSS AVSS PI5/AN21 PH5/AN13 PG7/AN7 PG3/AN3 PV3/ADTRG PV0/SBIA TDO ND

Reference D_GND DWE OPEN GND (10k) GND (10k) HOUS_CURRENT MIC_1 AL_3VSYS D_GND GND (10k) DAC_CLK OPEN ADM6 ADM3 AL_3VSYS ADM0 OPEN OPEN D_GND A_GND GND (10k) GND (10k) MODE_SENS MIC_3 AL_3VSYS DAC_CS OPEN OPEN

I/O O O I I I O I/O I/O I I/O O O I I I O -

Description GND for digital Interface with IC103 Not used Not used Not used Tension sensor AD for MIC IDBOARD detection Power for analog GND for digital Not used D/A control Not used Interface with IC103 Interface with IC103 Power for digital Interface with IC103 Not used Not used GND for digital GND for analog Not used Not used Mode sensor (mecha position) AD for MIC IDBOARD detection Not used D/A control Not used Not used

Table 4.3.3 MSD Terminal Function

4-13

4.3.6 RS-422A command list COMMAND FROM CONTROLLER CMD Data CMD -1 0 0 0 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 4 4 4 4 4 4 4 4 4 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 Count 0 0 0 0 0 0 0 0 0 0 0 X X X 0 X X X 0 4 0 0 4 0 4 0 0 0 0 4 X 1 1 1 1 1 1 1 1 1 1 1 1 0 1 0 0 0 0 -2 0C 11 1D 00 01 02 03 04 05 0F 10 11 12 13 20 21 22 23 30 31 54 55 04 10 14 18 19 20 24 31 3E 0A 0A 0A 0C 0C 0C 0C 0C 0C 0C 0C 0C 10 20 2B 31 36 3E DATA -1 01 10 11 01 02 03 10 11 20 22 30 33 NAME Local Disable Device Type Request Local Enable Stop Play Rec StillÅiJVC OnlyÅj Standby Off Standby On Eject Fast Fwd Jog Fwd Var Fwd Shuttle Fwd Rewind Jog Rev Var Rev Shuttle Rev Preroll Cue Up With Data Anti-clog Timer Disable Anti-clog Timer Enable Time Code Preset In Entry In Data Preset In + Shift In - Shift In Reset In Recall Preroll Time Preset Rec Inhibit Preset TC Gen Data Sense TC Gen Data Sense TC Gen Data Sense Current Time Sense Current Time Sense Current Time Sense Current Time Sense Current Time Sense Current Time Sense Current Time Sense Current Time Sense Current Time Sense In Data Sense Status Sense Remain Time Sense Preroll Time Sense Timer Mode Sense Rec Inhibit Sense CMD Data CMD -1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 Count 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 4 8 4 4 4 4 8 4 8 4 8 4 X 6 3 1 2 -2 01 11 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 08 09 08 04 06 04 05 04 07 06 05 04 10 20 2B 31 36 3E RETURN FROM NAME ACK Device Type ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK (Switch to shuttle) ACK (Switch to shuttle) ACK ACK ACK (Switch to shuttle) ACK (Switch to shuttle) ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK Gen Time Data Gen UB Data (UB: Fix to 0) Gen TC & UB Data (UB: Fix to 0) TC (main) Data TC (main) Data TC (main) Data UB (main) Data (UB: Fix to 0) TC & UB (main) Data (UB: Fix to 0) UB (main) Data (UB: Fix to 0) TC & UB (main) Data (UB: Fix to 0) UB (main) Data (UB: Fix to 0) TC & UB (main) Data (UB: Fix to 0) In Data Status Data Remain Data Preroll Time Data Timer Mode Data Rec Inhibit Status

Table 4.3.4 RS-422A Command List 4-14