Text preview for : Yamaha-T3N_4N_5N pwramp.pdf part of Yamaha T3N, T4N, T5N power amplifier
Back to : Yamaha-T3N_4N_5N pwramp.p | Home
SERVICE MANUAL
T5n
T4n
T3n
I CONTENTS
SPECIFICATIONS .................................................................. 3/5
DIMENSIONS .............................................................................. 7
PANEL LAYOUT ......................................................... 8
CIRCUIT BOARD LAYOUT .................................... 9
DISASSEMBLY PROCEDURES ............................................. 10
LSI PIN DESCRIPTION .................................................. 18
IC BLOCK DIAGRAM ...................................................... 20
CIRCUIT BOARDS ........................................................... 23
INSPECTIONS .......................................................................... 36/45
PST CIRCUIT BOARD REPAIR GUIDE
................................................................ 54/59
PARTS LIST
IC & DIODE FIGURES
This document is printed on chlorine free (ECF) paper. BLOCK DIAGRAM
CIRCUIT DIAGRAM
PA 011844
T5n: 200612-682500
T4n: 200612-577500 HAMAMATSU, JAPAN
T3n: 200612-504000 Copyright (c) Yamaha Corporation. All rights reserved. 06.12
T5n/T4n/T3n
IMPORTANT NOTICE
This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed that basic service
procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by the users, and have
therefore not been restated.
WARNING: Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury, destruc-
tion of expensive components and failure of the product to perform as specified. For these reasons, we advise all Yamaha
product owners that all service required should be performed by an authorized Yamaha Retailer or the appointed service
representative.
IMPORTANT: This presentation or sale of this manual to any individual or firm does not constitute authorization, certification, recognition of
any applicable technical capabilities, or establish a principal-agent relationship of any form.
The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and service
departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable and changes in specifica-
tion are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributor's Service
Division.
WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by
grounding yourself to the ground bus in the unit (heavy gauge black wires connect to this bus).
IMPORTANT: Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit.
WARNING: CHEMICAL CONTENT NOTICE!
The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (Where applicable)
components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly other entities) to cause
cancer and/or birth defects or other reproductive harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO
EVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/flux
vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food.
IMPORTANT NOTICE FOR THE UNITED KINGDOM
Connecting the Plug and Cord
WARNING: THIS APPARATUS MUST BE EARTHED
IMPORTANT. The wires in this mains lead are coloured in accordance with the following code:
GREEN-AND-YELLOW: EARTH
BLUE: NEUTRAL
BROWN: LIVE
As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your
plug, proceed as follows:
The wire which is coloured GREEN and YELLOW must be connected to the terminal in the plug which is marked by the letter E or by the safety
earth symbol or colored GREEN or colored GREEN and YELLOW.
The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED.
I WARNING
Components having special characteristics are marked and must be replaced with parts having specification equal to those originally
installed.
2
T5n/T4n/T3n
I SPECIFICATIONS
3
T5n/T4n/T3n
4
T5n/T4n/T3n
I DIMENSIONS
26
426.9
380
4.4
16.5
35 93 224 93 35
480
88
Unit: mm
7
T5n/T4n/T3n
I PANEL LAYOUT
· Front Panel
1 2 3 2
4 5 6 78 9 0 5 4
1 TEMP indicator 1
2 SIGNAL indicator 2
3 CLIP indicator 3
4 Screw holes for handles 4
5 Air intakes 5
6 POWER switch and indicator 6
7 REMOTE indicator 7
8 PROTECTION indicator 8
9 MUTE indicator 9
0 Volume control knobs 0
· Rear Panel
1 2 3
4 56 7 8
1 Mode switch 1
2 GAIN switch 2
3 SPEAKERS jacks 3
4 DATA PORT jacks 4
5 AMP ID switch 5
6 Input connectors 6
7 AC IN connector 7
8 Ground screw 8
8
T5n/T4n/T3n
I CIRCUIT BOARD LAYOUT
T5n model INSWT5
T4n model INSWT4
INSWT3
T3n model Rear
INT5 CPUT5
INT4 CPUT4
INT3 CPUT3
PAT5 PAT5
PAT5 PST5 PAT5
PAT3 PST4 PAT3
PST3
PSWT5 ATTT5
PSWT4 ATTT4
PSWT3 ATTT3
FPT5 Front
FPT5
FPT3
Rear Panel
Top
Bottom
INSWT5
INSWT4
INSWT3
Front Panel
Top
Bottom
FPT5
FPT5
FPT3
9
T5n/T4n/T3n
I DISASSEMBLY PROCEDURES
1. Top Cover (Time required: about 3 minutes)
1-1 Remove the nine (9) screws marked [320]. The top cover
can then be removed. (Fig. 1)
[320]
[320] [320]
Top cover
[320]
[320]: Bonding Tapping Screw-B 4x8 MFZN2B3 (WE999400)
(Fig. 1)
10
T5n/T4n/T3n
2. PA unit on the left side
(Time required: about 6 minutes)
2-1 Remove the top cover. (See Procedure 1.)
2-2 Remove the three (3) screws marked [230A], three (3)
screws marked [250A] and two (2) screws marked
[280A]. The PA unit and side cover L (with rear angle)
can then be removed. (Fig. 2)
2-3 Remove the four (4) screws marked [196A] and four (4)
screw covers marked [195A]. (Fig. 3)
2-4 Remove the six (6) screws marked [190A] and six (6)
washers marked [180A]. The PA unit and side cover L
(with rear angle) can then be separated. (Fig. 3)
3. PA unit on the right side
(Time required: about 6 minutes)
3-1 Remove the top cover. (See Procedure 1.)
3-2 Remove the three (3) screws marked [230B], three (3)
screws marked [250B] and two (2) screws marked
[280B]. The PA unit and side cover L (with rear angle)
can then be removed. (Fig. 2)
3-3 Remove the four (4) screws marked [196B] and four (4)
screw covers marked [195B]. (Fig. 3)
3-4 Remove the six (6) screws marked [190B] and six (6)
washers marked [180B]. The PA unit and side cover R
(with rear angle) can then be separated. (Fig. 3)
[280A] [280B]
Rear angle Rear angle
[230A] [230B]
Side cover L PA unit Side cover R
[250A] [250B]
[230A]: Bonding Tapping Screw-B 4x8 MFZN2B3 (WE999400)
[230B]: Bonding Tapping Screw-B 4x8 MFZN2B3 (WE999400)
[250A]: Bonding Tapping Screw-B 4x8 MFZN2B3 (WE999400)
[250B]: Bonding Tapping Screw-B 4x8 MFZN2B3 (WE999400)
[280A]: Bonding Tapping Screw-B 4x8 MFZN2B3 (WE999400)
[280B]: Bonding Tapping Screw-B 4x8 MFZN2B3 (WE999400)
(Fig. 2)
11
T5n/T4n/T3n
PA unit
Rear angle Rear angle
[180A] [180B]
[190A] [190B]
[195A] [195B]
[180A] [180B]
[196A] [196B]
[195A] [195B]
[190A] [190B]
Side cover L Side cover R
[180A]: Washer 4x9x0.8 MFZN2W3 (WF578000)
[180B]: Washer 4x9x0.8 MFZN2W3 (WF578000)
[190A]: Bonding Tapping Screw-B 4x8 MFZN2B3 (WE999400)
[190B]: Bonding Tapping Screw-B 4x8 MFZN2B3 (WE999400)
[195A]: Screw Cover (WJ618300)
[195B]: Screw Cover (WJ618300)
[196A]: Bind Head Tapping Screw-B 3x8 MFZN2B3 (WE774400)
[196B]: Bind Head Tapping Screw-B 3x8 MFZN2B3 (WE774400)
(Fig. 3)
4. Rear Assembly
(Time required: about 5 minutes)
4-1 Remove the top cover. (See Procedure 1.)
4-2 Remove the six (6) screws marked [280]. The rear as-
sembly can then be removed. (Fig. 4)
[280]
[280] [280]
Rear Assembly
[280]: Bonding Tapping Screw-B 4x8 MFZN2B3 (WE999400)
(Fig. 4)
12
T5n/T4n/T3n
5. INT5 Circuit Board, INSWT5 Circuit Board (T5n)
INT4 Circuit Board, INSWT4 Circuit Board (T4n)
INT3 Circuit Board, INSWT3 Circuit Board (T3n)
(Time required: about 10 minutes)
5-1 Remove the top cover. (See Procedure 1.)
5-2 Remove the rear assembly. (See Procedure 4.)
5-3 Remove the two (2) screws marked [370]. The speaker
terminal cover can then be removed. (Fig. 5)
5-4 Remove the four (4) screws marked [70], four (4) screws
marked [80], two (2) screws marked [90] and screw
marked [100]. (Fig. 5)
The INT5 circuit board can then be removed. (T5n) (Fig. 5)
The INT4 circuit board can then be removed. (T4n) (Fig. 5)
The INT3 circuit board can then be removed. (T3n) (Fig. 5)
5-5 Remove the two (2) screws marked [30]. (Fig. 5)
The INSWT5 circuit board can then be removed. (T5n)
(Fig. 5)
The INSWT4 circuit board can then be removed. (T4n)
(Fig. 5)
The INSWT3 circuit board can then be removed. (T3n)
(Fig. 5)
INT5
INT4
INT3
INSWT5 Speaker Terminal Cover
INSWT4
INSWT3
[100] [90]
[70] [30] [70] [80] [370] [80]
[30]: Pan Head Screw 2.6x6 MFZN2B3 (WE986400)
[70]: Bind Head Tapping Screw-B 2.6x8 MFZN2B3 (WE961700)
[80]: Flat Head Tapping Screw-B 3x8 MFZN2B3 (WF266800)
[90]: Bind Head Tapping Screw-B 3x12 MFZN2B3 (WE998100)
[100]: Bonding Tapping Screw-B 3x8 MFZN2B3 (WE774100)
[370]: Bind Head Tapping Screw-B 3x8 MFZN2B3 (WE774400)
(Fig. 5)
13
T5n/T4n/T3n
6. Front Assembly
(Time required: about 5 minutes)
6-1 Remove the top cover. (See Procedure 1.)
6-2 Remove the six (6) screws marked [250] (3 on the left
and 3 on the right) and two (2) screws marked [260].
The front assembly can then be removed. (Fig. 6)
[250] [260] Front Assembly [250]
[250]: Bonding Tapping Screw-B 4x8 MFZN2B3 (WE999400)
[260]: Bind Head Tapping Screw-B 3x8 MFZN2W3 (WE774300)
(Fig. 6)
7. DC Fan Assembly
(Time required: about 7 minutes)
7-1 Remove the top cover. (See Procedure 1.)
7-2 Remove the front assembly. (See Procedure 6.)
7-3 Remove the two (2) screws marked [30A]. The DC fan
assembly on the left side can then be removed. (Fig. 7)
7-4 Remove the two (2) screws marked [30B]. The DC fan
assembly on the right side can then be removed. (Fig. 7)
DC Fan Assembly DC Fan Assembly
[30B] [30A]
[30A]: Pan Head Screw 4x45 MFZN2W3 SP (WJ124000)
[30B]: Pan Head Screw 4x45 MFZN2W3 SP (WJ124000)
(Fig. 7)
14
T5n/T4n/T3n
8. PSWT5 Circuit Board, FPT5 Circuit Board,
ATTT5 Circuit Board (T5n)
PSWT4 Circuit Board, FPT4 Circuit Board,
ATTT4 Circuit Board (T4n)
PSWT3 Circuit Board, FPT3 Circuit Board,
ATTT3 Circuit Board (T3n)
(Time required: about 15 minutes)
8-1 Remove the top cover. (See Procedure 1.)
8-2 Remove the front assembly. (See Procedure 6.)
8-3 Remove the two (2) screws marked [200A]. The grill
and filter on the left side can then be removed. (Fig. 8)
8-4 Remove the two (2) screws marked [200B]. The grill
and filter on the left side can then be removed. (Fig. 8)
8-5 Remove the two (2) knobs. (Fig. 8)
8-6 Remove the six (6) screws marked [160]. The front panel
can then be removed. (Fig. 8)
Front panel
Filter
[160]
Grill
[160]
Knob
[200A]
[160]
[200B]
Filter
Grill
[160]: Flat Head Screw 4x8 MFZN2B3 (WE980300)
[200A]: Bind Head Screw 4x10 MFZN2B3 (WE980400)
[200B]: Bind Head Screw 4x10 MFZN2B3 (WE980400)
(Fig. 8)
15
T5n/T4n/T3n
8-7 Remove the PSW knob. (Fig. 9)
8-8 Remove the two (2) screws marked [70]. (Fig. 9)
The PSWT5 circuit board can then be removed. (T5n)
(Fig. 9)
The PSWT4 circuit board can then be removed. (T4n)
(Fig. 9)
The PSWT3 circuit board can then be removed. (T3n)
(Fig. 9)
8-9 Remove the two (2) screws marked [120]. (Fig. 9)
The FPT5 circuit board can then be removed. (T5n)
(Fig. 9)
The FPT4 circuit board can then be removed. (T4n)
(Fig. 9)
The FPT3 circuit board can then be removed. (T3n)
(Fig. 9)
8-10 Remove the two (2) hexagonal nuts. (Fig. 9)
The ATTT5 circuit board can then be removed. (T5n)
(Fig. 9)
The ATTT4 circuit board can then be removed. (T4n)
(Fig. 9)
The ATTT3 circuit board can then be removed. (T3n)
(Fig. 9)
2596# )666#
2596" )666"
2596! [120] )666!
.26#
.26"
.26!
[70] Power Switch Knob Hexagonal Nut
[70]: Bind Head Screw 3x6 MFZN2W3 (WE774000)
[120]: Bind Head Tapping Screw-B 3x8 MFZN2W3 (WE774300)
(Fig. 9)
16
T5n/T4n/T3n
9. PST5 Circuit Board, CPUT5 Circuit Board (T5n)
PST4 Circuit Board, CPUT4 Circuit Board (T4n)
PST3 Circuit Board, CPUT3 Circuit Board (T3n)
(Time required: about 20 minutes)
9-1 Remove the top cover. (See Procedure 1.)
9-2 Remove the PA unit on the left side. (See Procedure 2.)
9-3 Remove the PA unit on the right side. (See Procedure 3.)
9-4 Remove the rear assembly. (See Procedure 4.)
9-5 Remove the front assembly. (See Procedure 6.)
9-6 Remove the twelve (12) screws marked [40]. (Fig. 10)
The PST5 circuit board and insulation sheet can then
be removed. (T5n) (Fig. 10)
The PST4 circuit board and insulation sheet can then
be removed. (T4n) (Fig. 10)
The PST3 circuit board and insulation sheet can then
be removed. (T3n) (Fig. 10)
9-7 Remove the four (4) screws marked [60]. (Fig. 10)
The CPUT5 circuit board can then be removed. (T5n)
(Fig. 10)
The CPUT4 circuit board can then be removed. (T4n)
(Fig. 10)
The CPUT3 circuit board can then be removed. (T3n)
(Fig. 10)
[40] CPUT5
CPUT4
CPUT3
[60]
[60]
[40]
PST5
Insulation Sheet
[40] PST4
PST3
[40]
[40]
[40]: Bind Head Tapping Screw-B 3x8 MFZN2W3 (WE774300)
[60]: Bind Head Tapping Screw-B 3x8 MFZN2W3 (WE774300)
(Fig. 10)
17
T5n/T4n/T3n
I LSI PIN DESCRIPTION
· YAC526-EZE2 (X5574A00) DIGITAL VOLUME INT: IC408
PIN
NAME I/O FUNCTION
No.
1 ZCEN1 I Zero-cross control input 1. Select one from four types of zero-cross modes including nonzero cross mode. When
changing zero-cross modes during operation, set the system so that it changes at 1 second or more after the rise
of CSN signal.
2 ZCEN2 I Zero-cross control input 2. Select one from four types of zero-cross modes including nonzero cross mode. When
changing zero-cross modes during operation, set the system so that it changes at 1 second or more after the rise
of CSN signal.
3 CSN I Chip select input.
4 SDATAI I Serial data input.
5 DGND - Digital ground.
6 REF O Reference voltage output for digital for attaining stabilization, connect this terminal to DVSS terminal through a
capacitance of 10 µF or higher (CREF).
And please do not use this terminal output for the drive purpose of an external circuit.
7 DVSS - Minus power supply for digital (-6.0 V Typ.).
8 SCLK I Serial clock input.
9 SDATAO OD Serial data output.
Serial data are outputted from this terminal when CSN pin is "L" level.
This terminal becomes high-impedance state when CSN pin is "H". Since it is an open drain output pin, pull it up
through a resistor to the power supply voltage (to be AVDD or less) of a device to be connected. Do not allow
output current of 1.5 mA or over.
10 TE1 I Test terminal (Pull-down) non connection or connect to DGND terminal.
11 TE2 I Test terminal (Pull-down) non connection or connect to DGND terminal.
12 TE3 I Test terminal (Pull-down) non connection or connect to DGND terminal.
13 IN2 AI CH2 analog input. The output impedance of input signal source is used less than 10 k.
When avoid the use of this terminal, connect to ground.
14 REF2A AI CH2 analog reference voltage input A connect to ground directly.
15 REF2B AI CH2 analog reference voltage input B connect to ground directly.
16 OUT2 AO CH2 analog output.
17 AVDD - Plus power supply for analog (+6.0 V Typ.).
18 AVSS - Minus power supply for analog (-6.0 V Typ.).
19 AVSS - Minus power supply for analog (-6.0 V Typ.).
20 AVDD - Plus power supply for analog (+6.0 V Typ.).
21 OUT1 AO CH1 analog output.
22 REF1B AI CH1 analog reference voltage input B connect to ground directly.
23 REF1A AI CH1 analog reference voltage input A connect to ground directly.
24 IN1 AI CH1 analog input. The output impedance of input signal source is used less than 10 k.
When avoid the use of this terminal, connect to ground.
Note A: Analog terminal, OD: Open drain output terminal, "L" level means VIL, "H" level means VIH.
18
T5n/T4n/T3n
· HD64F7044F28V (X5719E00) CPU CPUT: IC801
PIN PIN
NAME I/O FUNCTION NAME I/O FUNCTION
No. No.
1 PE1/TIOC4C/DACK0/AH I/O Port E / MTU I/O / DMA transfer strobe / Address hold 57 PD11/D11 I/O
2 PE15/TIOC4D/DACK1/IRQOUT I/O Port E / MTU I/O / DMA transfer strobe / Interrupt request output 58 PD10/D10 I/O
Port D / Data bus
3 Vss I Ground 59 PD9/D9 I/O
4 PC0/A0 O 60 PD8/D8 I/O
5 PC1/A1 O 61 Vss I Ground
6 PC2/A2 O 62 PD7/D7 I/O
7 PC3/A3 O 63 PD6/D6 I/O Port D / Data bus
8 PC4/A4 O 64 PD5/D5 I/O
9 PC5/A5 O 65 Vcc I Power supply
10 PC6/A6 O 66 PD4/D4 I/O
11 PC7/A7 O 67 PD3/D3 I/O
Port C / Address bus
12 PC8/A8 O 68 PD2/D2 I/O Port D / Data bus
13 PC9/A9 O 69 PD1/D1 I/O
14 PC10/A10 O 70 PD0/D0 I/O
15 PC11/A11 O 71 Vss I Ground
16 PC12/A12 O 72 XTAL I Crystal oscillator
17 PC13/A13 O 73 MD3 I Mode set
18 PC14/A14 O 74 EXTAL I External clock
19 PC15/A15 O 75 MD2 I Mode set
20 PB0/A16 O Port B / Address bus 76 NMI I Non-maskable interrupt request
21 Vcc I Power supply 77 Vcc I Power supply
22 PB1/A17 O Port B / Address bus 78 MD1 I
Mode set
23 Vss I Ground 79 MD0 I
24 PB2/IRQ0/POE0/RAS I/O Port B / Interrupt request / Port output enable / Row address strobe 80 PLLVcc I PLL power supply
25 PB3/IRQ1/POE1/CASL I/O Port B / Interrupt request / Port output enable / Lower column address strobe 81 PLLCAP I PLL capacitance
26 PB4/IRQ2/POE2/CASH I/O Port B / Interrupt request / Port output enable / Upper column address strobe 82 PLLVss I PLL ground
27 Vss I Ground 83 PA15/CK O Port A / System clock
28 PB5/IRQ3/POE3/RDWR I/O Port B / Interrupt request / Port output enable / DRAM read/write 84 RES I Power-on reset
29 PB6/IRQ4/A18/BACK I/O Port B / Interrupt request / Address bus / Bus request acknowledge 85 PE0/TIOC0A/DREQ0 I/O Port E / MTU I/O / DMA transfer request
30 PB7/IRQ5/A19/BREQ I/O Port B / Interrupt request / Address bus / Bus request 86 PE1/TIOC0B/DRAK0 I/O Port E / MTU I/O / DREQ request acknowledgement
31 PB8/IRQ6/A20/WAIT I/O Port B / Interrupt request / Address bus / Wait 87 PE2/TIOC0C/DREQ1 I/O Port E / MTU I/O / DMA transfer request
32 PB9/IRQ7/A21/ADTRG I/O Port B / Interrupt request / Address bus / A/D conversion trigger input 88 PE3/TIOC0D/DRAK1 I/O Port E / MTU I/O / DREQ request acknowledgement
33 Vss I Ground 89 PE4/TIOC1A I/O Port E / MTU I/O
34 PA14/RD O Port A / Read 90 Vss I Ground
35 WDTOVF O Watchdog time overflow 91 PF0/AN0 I
36 PA13/WRH O Port A / Upper write 92 PF1/AN1 I
37 Vcc I Power supply 93 PF2/AN2 I
Port F / Analog input
38 PA12/WRL O Port A / Lower write 94 PF3/AN3 I
39 Vss I Ground 95 PF4/AN4 I
40 PA11/CS1 O 96 PF5/AN5 I
Port A / Chip select
41 PA10/CS0 O 97 AVss I Analog ground
42 PA9/TCLKD/IRQ3 I 98 PF6/AN6 I
Port A / MTU timer clock input / Interrupt request Port F / Analog input
43 PA8/TCLKC/IRQ2 I 99 PF7/AN7 I
44 PA7/TCLKB/CS3 I/O 100 AVcc I Analog power supply
Port A / MTU timer clock input / Chip select
45 PA6/TCLKA/CS2 I/O 101 Vss I Ground
46 PA5/SCK1/DREQ1/IRQ1 I/O Port A / Serial clock / DMA transfer request / Interrupt request 102 PE5/TIOC1B I/O Port E / MTU I/O
47 PA4/TXD1 O Port A / Data transmission 103 Vcc I Power supply
48 PA3/RXD1 I Port A / Data reception 104 PE6/TIOC2A I/O
49 PA2/SCK0/DREQ0/IRQ0 I/O Port A / Serial clock / DMA transfer request / Interrupt request 105 PE7/TIOC2B I/O
Port E / MTU I/O
50 PA1/TXD0 O Port A / Data transmission 106 PE8/TIOC3A I/O
51 PA0/RXD0 I Port A / Data reception 107 PE9/TIOC3B I/O
52 PD15/D15 I/O 108 PE10/TIOC3C I/O
53 PD14/D14 I/O Port D / Data bus 109 Vss I Ground
54 PD13/D13 I/O 110 PE11/TIOC3D I/O
Port E / MTU I/O
55 Vss I Ground 111 PE12/TIOC4A I/O
56 PD12/D12 I/O Port D / Data bus 112 PE13/TIOC4B/MRES I/O Port E / MTU I/O / Manual reset
19
T5n/T4n/T3n
I IC BLOCK DIAGRAM
· DS36276M (X2155A00) · IR2110 (X2382A00)
Transceiver Driver
CPUT: IC802 PST: IC103,104
6 VB
UV
LO 1 14 VDD 9 HV DETECT
VCC R Q
RO 1 8 LEVEL
R PULSE R 7 HO
R Q SHIFT
COM 2 13 VSS S FILTER
VDD/VCC S
RE 2 7 DO/RI
HIN 10 LEVEL
VCC 3 12 LIN SHIFT PULSE 5 VS
DE 3 6 DO/RI GEN
D 4 11 SD SD 11 3 VCC
DI 4 5 GND
VS 5 10 HIN UV
DETECT
VDD/VCC
VB 6 9 VDD LIN 12 LEVEL 1 LO
S SHIFT
R Q DELAY
HO 7 8
VSS 13 2 COM
· NJM2068M-D (TE2) (X3505A00) · NJM78L06UA (TE1) (X3620A00)
Dual Operational Amplifier Regulator +6V
INT: IC402-407, 410, 414, 901-906 INT: IC412
VIN
Output A 1 +V 8
+DC Voltage
Supply
Inverting
2 7 Output B
Input A - +
Non-Inverting 3 6
Inverting
Input A + - Input B
-DC Voltage Supply 4 -V 5 Non-Inverting
Input B
VOUT
GND
· NJM13600M (TE2) (X5042A00) · YAC-526-EZE2 (X5574A00)
Operational Amplifier 2ch high grade digital volume LSI
INT: IC409 INT: IC408
AMP BIAS INPUT A 1 16 AMP BIAS INPUT B 100 ohms
IN1
0 ~ -95dB
OUT1
DIODE BIAS A 2 15 DIODE BIAS B Vol B:
10 k-ohms 0 ~ +31.5dB
OPAmp
+INPUT A 3 14 +INPUT B
REF1B
REF1A ZCEN1 1 24 IN1
INPUT A 4 13 INPUT B Vol A:
+ + 15 k-ohms
ZCEN2 2 23 REF1A
A B
CSN 3 22 REF1B
OUTPUT A 5 12 OUTPUT B
Zero TE1 SDATAI 4 21 OUT1
AVDD Crossing TE2
Detector TE3 DGND 5 20 AVDD
V 6 11 V+
DGND ZCEN1
Control REF 6 19 AVSS
REF ZCEN2
BUFFER INPUT A 7 10 BUFFER INPUT B Register DVSS 7 18 AVSS
SDATAO (OpenDrain)
AVSS S/P SCLK 8 17 AVDD
Zero SDATAI
BUFFER OUTPUT A 8 9 BUFFER OUTPUT B DVSS Crossing 16 Register SCLK
Detector
SDATAO 9 16 OUT2
CSN
TE1 10 15 REF2B
TE2 11 14 REF2A
Vol A:
15 k-ohms TE3 12 13 IN2
REF2A
REF2B
Vol B: 0 ~ +31.5dB
10 k-ohms 100 ohms
0 ~ -95dB
OUT2
IN2
OPAmp
20
T5n/T4n/T3n
· NJM4558M (TE2) (X5804A00) · UC3525AN (X5952A00)
Operational Amplifier Switching Regulator OSC
VREF OUT
INT: IC601, 604-612 PST: IC101 16 4
13 VC
NOR
Reference UVLO
+VIN 15 Regulator Lockout 11 OUTPUT A
INV. INPUT 1 16 VREF
GROUND 12
+DC Voltage To Internal
Output A 1 8 N.I. INPUT 2 15 +VIN
Supply circuitry
SYNC 3
Inverting
2 7 Output B SYNC 3 14 OUTPUT B
Input A +
RT 6
Non-Inverting Inverting Flip NOR
3 6 OSC. OUTPUT 4 13 VC OSC
Input A + Input B Flop
14 OUTPUT B
CT 5
Ground 4 5 Non-Inverting CT 5 12 GROUND
Input B
DISCHARGE 7
RT 6 11 OUTPUT A
DISCHARGE 7 10 SHUTDOWN
COM R
S
SOFT-START 8 9 COMPENSATION COMPENSATION 9 PWM
Error Latch
Amp S
INV. INPUT 1 VREF
50 A
N.I. INPUT 2
SOFT-START 8
3k
· NJM431U (TE1) (X6770A00) SHUTDOWN 10
5k
Variable Shunt Regulator
PAT: IC202, 203
CATHOD
REFERENCE
· µPC4570G2-E1-A (X7351A00)
Dual Operational Amplifier
INT: IC602, 603
A OUTPUT 1 8 V+
A
A -INPUT 2 - + 7 B OUTPUT
B
A +INPUT 3 + - 6 B -INPUT
V- 4 5 B +INPUT
ANODE
REFERENCE (R)
ANODE CATHODE
(A) (K)
· NJM79L06UA (TE1) (X7917A00) · NJM7815FA (XD853A00)
Regulator -6V