Panasonic SA-MAX370GS User manual

© Panasonic Corporation 2014. All rights reserved.
Unauthorized copying and distribution is a violation of
law.
PSG1403018AE
CD Stereo System
Model No. SA-MAX370GS
SA-MAX770GS
Product Color: (K)...Black Type
TABLE OF CONTENTS PAGE PAGE
1 Safety Precautions----------------------------------------------- 3
1.1. General Guidelines---------------------------------------- 3
1.2. Before Repair and Adjustment------------------------- 3
1.3. Protection Circuitry---------------------------------------- 4
1.4. Caution For AC Cord ------------------------------------- 5
1.5. Caution For Fuse Replacement------------------------ 6
1.6. Safety Parts Information -------------------------------- 6
2 Warning-------------------------------------------------------------- 7
2.1. Prevention of Electrostatic Discharge (ESD)
to Electrostatically Sensitive (ES) Devices ----------7
2.2. Precaution of Laser Diode-------------------------------7
2.3. General description about Lead Free Solder
(PbF) ----------------------------------------------------------8
2.4. Handling Precautions for Traverse Ass’y ------------8
2.5. Grounding for electrostatic breakdown
prevention----------------------------------------------------9
Notes: Please use this manual together with service manual
Model No.[SA-MAX370PUK, SA-MAX770PUK], Order no. (PSG1402009CE).
• Speaker system SB-MAX370GSK, Order No: PSG1404010AE (For SA-MAX370GS)
• Speaker system SB-MAX770GSK, Order No: PSG1403039AE (For SA-MAX770GS)

2
3 Service Navigation----------------------------------------------10
3.1. Service Information--------------------------------------10
3.2. Notes--------------------------------------------------------10
4 Specifications---------------------------------------------------- 11
5 Block Diagram ---------------------------------------------------13
5.1. System Control -------------------------------------------13
5.2. Audio --------------------------------------------------------17
5.3. Power Supply ---------------------------------------------19
6 Schematic Diagram---------------------------------------------21
6.1. Schematic Diagram Notes-----------------------------21
6.2. Main (I/O Expansion) Circuit --------------------------23
6.3. Main (Fan LED) Circuit ---------------------------------24
6.4. Main (DSP) Circuit---------------------------------------25
6.5. Main (Amp BTL) Circuit (1/2)--------------------------26
6.6. Main (Amp BTL) Circuit (1/2)--------------------------27
6.7. Main (MICON) Circuit (1/2) ----------------------------28
6.8. Main (MICON) Circuit (2/2) ----------------------------29
6.9. Main (Amp Single) Circuit (1/2)-----------------------30
6.10. Main (Amp Single) Circuit (2/2)-----------------------31
6.11. Main (FE) Circuit -----------------------------------------32
6.12. Main (Karaoke) Circuit----------------------------------33
6.13. Main (Digital-Power) Circuit (1/2) --------------------34
6.14. Main (Digital-Power) Circuit (2/2) --------------------35
6.15. Main (USB) Circuit---------------------------------------36
6.16. Main (AUX Tuner) Circuit ------------------------------37
6.17. Illumination Left, Illumination Right, Button
Right & USB Circuit--------------------------------------38
6.18. FL Display Circuit ----------------------------------------39
6.19. Volume Jog & Multi Control Circuit ------------------40
6.20. Button Left Circuit----------------------------------------41
6.21. Mic, Illumination Jog & CD Interface Circuit-------42
6.22. SMPS Circuit (1/2)---------------------------------------43
6.23. SMPS Circuit (2/2)---------------------------------------44
7 Printed Circuit Board ------------------------------------------45
7.1. Main P.C.B. (Side A)-------------------------------------45
7.2. Main P.C.B. (Side B)-------------------------------------46
7.3. Illumination Left, Illumination Right & FL
Display P.C.B.---------------------------------------------47
7.4. Button Left, Button Right, Mic & USB P.C.B.------48
7.5. Volume Jog, Illumination Jog & Multi Control
P.C.B.--------------------------------------------------------49
7.6. SMPS P.C.B. ----------------------------------------------50
8 Voltage and Waveform Measurement --------------------51
8.1. Voltage Measurement-----------------------------------51
8.2. Waveform Chart------------------------------------------59
9 Exploded View and Replacement Parts List-----------61
9.1. Cabinet Parts Location 1-------------------------------61
9.2. Cabinet Parts Location 2-------------------------------62
9.3. Cabinet Parts Location 3-------------------------------63
9.4. Packaging (SC-MAX370GSK)------------------------64
9.5. Packaging (SC-MAX770GSK)------------------------65
9.6. Mechanical Replacement Part List ------------------67
9.7. Electrical Replacement Part List ---------------------69

3
1 Safety Precautions
1.1. General Guidelines
1. IMPORTANT SAFETY NOTICE
There are special components used in this equipment which are important for safety. These parts are marked by in the
Schematic Diagrams, Circuit Board Layout, Exploded Views and Replacement Parts List. It is essential that these critical parts
should be replaced with manufacturer’s specified parts to prevent X-RADIATION, shock, fire, or other hazards. Do not modify
the original design without permission of manufacturer.
2. An Isolation Transformer should always be used during the servicing of AC Adaptor whose chassis is not isolated from the AC
power line. Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal
injury from electrical shocks. It will also protect AC Adaptor from being damaged by accidental shorting that may occur during
servicing.
3. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.
4. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
5. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.
1.1.1. Leakage Current Cold Check
1. Unplug the AC cord and connect a jumper between the two prongs on the plug.
2. Measure the resistance value, with an ohmmeter, between the jumpered AC plug and each exposed metallic cabinet part on
the equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to the
chassis, the reading should be between 1MΩand 5.2MΩ.
When the exposed metal does not have a return path to the chassis, the reading must be
1.1.2. Leakage Current Hot Check
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.
2. Connect a 1.5kΩ, 10 watts resistor, in parallel with a 0.15μF capacitors, between each exposed metallic part on the set and a
good earth ground such as a water pipe, as shown in Figure 1-1.
3. Use an AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across the resistor.
4. Check each exposed metallic part, and measure the voltage at each point.
5. Reverse the AC plug in the AC outlet and repeat each of the above measurements.
6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent)
may be used to make the hot checks, leakage current must not exceed 1/2 milliamp. In case a measurement is outside of the
limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is
returned to the customer.
Figure 1-1
1.2. Before Repair and Adjustment
Disconnect AC power to discharge AC Capacitors (C1001, C1002, C1003, C1004, C1006, C1518) through a 10 Ω, 10 W resistor to
ground.
Caution:
DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
After repairs are completed, restore power gradually using a variac, to avoid overcurrent.
Current consumption at AC 220~240 V, 50/60 Hz in FM Tuner at volume minimum should be ~ 850mA.

4
1.3. Protection Circuitry
The protection circuitry may have operated if either of the following conditions are noticed:
• No sound is heard when the power is turned on.
• Sound stops during a performance.
The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are
“shorted”, or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used.
If this occurs, follow the procedure outlines below:
1. Turn off the power.
2. Determine the cause of the problem and correct it.
3. Turn on the power once again after one minute.
Note:
When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.

5
1.4. Caution For AC Cord

6
1.5. Caution For Fuse Replacement
1.6. Safety Parts Information
Safety Parts List:
There are special components used in this equipment which are important for safety.
These parts are marked by in the Schematic Diagrams, Exploded View & Replacement Parts List. It is essential that these
critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. Do not modify the
original design without permission of manufacturer.
Safety Ref No. Part No. Part Name & Description Remarks
25 RGR0455C-A1 REAR PANEL MAX770
25 RGR0455F-A REAR PANEL MAX370
40 RKM0744-K2 TOP CABINET
301 RAE1045Z-V TRAVERSE ASS'Y
A2 K2CJ2YY00097 AC CORD
A2 K2CP2YY00071 AC CORD
A2 K2CQ2YY00127 AC CORD
A2 K2CT2YY00103 AC CORD
A3 VQT5F33 O/I BOOK (En/CN/Ru/Ur/Ar) MAX770
A3 VQT5F34 O/I BOOK (En/CN/Ru/Ur/Ar) MAX370
PCB13 REP5035B SMPS P.C.B. (RTL)
DZ1001 D4EAY511A127 VARISTOR (E.S.D)
L1001 G0B183J00002 LINE FILTER
L1002 G0B183J00002 LINE FILTER
T1101 G0C400K00001 TRANSFORMER
T1203 G0C400K00001 TRANSFORMER
T1401 G4DYZ0000076 TRANSFORMER
T1501 G4DYA0000520 TRANSFORMER
T1502 G4DYA0000520 TRANSFORMER
Q1403 B3PBA0000579 PHOTO COUPLER
Q1404 B3PBA0000579 PHOTO COUPLER
Q1405 B3PBA0000579 PHOTO COUPLER
Q1505 B3PBA0000579 PHOTO COUPLER
F1001 K5D103BNA005 FUSE
F1401 K5G501YA0081 FUSE PROTECTOR
F1501 K5G502Y00006 FUSE PROTECTOR
P1001 K2AZYA000005 AC INLET
R1001 D0GF105JA048 1M 1/4W
R1002 D0GF105JA048 1M 1/4W
C1001 F0CAF224A105 0.22uF
C1002 F0CAF224A105 0.22uF
C1003 F1BAF221A013 220pF
C1004 F1BAF221A013 220pF
C1006 F0CAF104A105 0.1uF
C1518 F1BAF471A013 470pF

7
2Warning
2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensi-
tive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec-
trostatically Sensitive (ES) Devices.
The following techniques should be used to help reduce the incidence of component damage caused by electrostatic discharge
(ESD).
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your
body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,
which should be removed for potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as alumi-
num foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as “anti-static (ESD protected)” can
generate electrical charge sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most
replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or compara-
ble conductive material).
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be installed.
CAUTION:
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the
brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) suf-
ficient to damage an ES device).
2.2. Precaution of Laser Diode
Caution:
This product utilizes a laser diode with the unit turned “on”, invisible laser radiation is emitted from the pickup lens.
Wavelength: 790 nm (CD)
Maximum output radiation power from pickup: 100 μW/VDE
Laser radiation from the pickup unit is safety level, but be sure the followings:
1. Do not disassemble the pickup unit, since radiation from exposed laser diode is dangerous.
2. Do not adjust the variable resistor on the pickup unit. It was already adjusted.
3. Do not look at the focus lens using optical instruments.
4. Recommend not to look at pickup lens for a long time.

8
Figure 2-1
2.3. General description about Lead Free Solder (PbF)
The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards used for this
equipment in considering the globally environmental conservation.
The normal solder is the alloy of tin (Sn) and lead (Pb). On the other hand, the lead free solder is the alloy mainly consists of tin
(Sn), silver (Ag) and Copper (Cu), and the melting point of the lead free solder is higher approx.30 degrees C (86°F) more than that
of the normal solder.
Definition of PCB Lead Free Solder being used
Service caution for repair work using Lead Free Solder (PbF)
• The lead free solder has to be used when repairing the equipment for which the lead free solder is used.
(Definition: The letter of “PbF” is printed on the PCB using the lead free solder.)
• To put lead free solder, it should be well molten and mixed with the original lead free solder.
• Remove the remaining lead free solder on the PCB cleanly for soldering of the new IC.
• Since the melting point of the lead free solder is higher than that of the normal lead solder, it takes the longer time to melt the
lead free solder.
• Use the soldering iron (more than 70W) equipped with the temperature control after setting the temperature at 350±30 degrees
C (662±86°F).
Recommended Lead Free Solder (Service Parts Route.)
• The following 3 types of lead free solder are available through the service parts route.
RFKZ03D01K-----------(0.3mm 100g Reel)
RFKZ06D01K-----------(0.6mm 100g Reel)
RFKZ10D01K-----------(1.0mm 100g Reel)
Note
* Ingredient: tin (Sn), 96.5%, silver (Ag) 3.0%, Copper (Cu) 0.5%, Cobalt (Co) / Germanium (Ge) 0.1 to 0.3%
2.4. Handling Precautions for Traverse Ass’y
The laser diode in the optical pickup unit may break down due to static electricity of clothes or human body. Special care must be
taken avoid caution to electrostatic breakdown when servicing and handling the laser diode in the traverse unit.
2.4.1. Cautions to Be Taken in Handling the Optical Pickup Unit (OPU)
The laser diode in the optical pickup unit may be damaged due to electrostatic discharge generating from clothes or human body.
Special care must be taken avoid caution to electrostatic discharge damage when servicing the laser diode.
1. Do not give a considerable shock to the optical pickup unit as it has an extremely high-precise structure.
2. To prevent the laser diode from the electrostatic discharge damage, the flexible cable of the optical pickup unit removed
should be short-circuited with a short pin or a clip.
3. The flexible cable may be cut off if an excessive force is applied to it. Use caution when handling the flexible cable.
4. The antistatic FFC is connected to the new optical pickup unit. After replacing the optical pickup unit and connecting the flexi-
The letter of “PbF” is printed either foil side or components side on the PCB using the lead free solder.
(See right figure)

9
ble cable, cut off the antistatic FFC.
Figure 2-2
2.5. Grounding for electrostatic breakdown prevention
• As for parts that use optical pick-up (laser diode), the optical pick-up is destroyed by the static electricity of the working environ-
ment.
Repair in the working environment that is grounded.
2.5.1. Worktable grounding
• Put a conductive material (sheet) or iron sheet on the area where the optical pickup is placed and ground the sheet.
2.5.2. Human body grounding
• Use the anti-static wrist strap to discharge the static electricity form your body Figure 2-3.
Figure 2-3

10
3 Service Navigation
3.1. Service Information
This service manual contains technical information which will allow service personnel’s to understand and service this model.
Please place orders using the parts list and not the drawing reference numbers.
If the circuit is changed or modified, this information will be followed by supplement service manual to be filed with original service
manual.
3.2. Notes
1) This service manual does not contains the following information
This simplified service manual is base on SA-MAX370PUK, SA-MAX770PUK. Please refer to the original service manual, SA-
MAX370PUK, SA-MAX770PUK (Order No. PSG1402009CE) for the below mention contents.
- Location of Controls and Components
-ServiceMode
- Troubleshooting Guide
- Disassembly and Assembly Instructions
- Service Position
- Wiring Connection Diagram
2) This service manual contains include the following information
- Safety Precautions
- Warning
- Service Navigation
- Specifications
- Block Diagram
- Schematic Diagram
- Printed Circuit Board
- Appendix Information of Schematic Diagram
- Exploded View and Replacement Parts List

11
4 Specifications
QAmplifier section
RMS output power (each channel) (SA-MAX370GS)
Front 300 W per channel (3 Ω), 1 kHz, 30% THD
Subwoofer (Mid-Low)
300 W per channel (3 Ω), 100 Hz, 30% THD
Subwoofer (Low) 650 W per channel (6 Ω), 100 Hz, 30% THD
Total RMS stereo mode power 2500 W
RMS output power (each channel) (SA-MAX770GS)
High 400+400 W per channel (3 Ω), 1 kHz, 30% THD
Mid-Low 400+400 W per channel (3 Ω), 1 kHz, 30% THD
Low 850+850 W per channel (5 Ω), 100 Hz, 30% THD
Total RMS stereo mode power 3300 W (30% THD)
QDisc section
Disc played
8 cm CD, CD-R/RW
12 cm CD, CD-R/RW
Pick up
Wavelength 790 nm(CD)
Laser Power CLASS 1
Audio output (disc)
Number of channels (SA-MAX370GS) 2.4 ch (FL, FR, SW)
Number of channels (SA-MAX770GS) 2 ch (FL, FR)
FL = Front left channel
FR = Front right channel
SW = Subwoofer channel
Format CD-DA, MP3
QTuner section
Frequency modulation (FM)
Preset Memory 30 stations
Frequency range 87.50 to 108.00 MHz (50 kHz step)
Antenna terminals 75 Ω(unbalanced)
Amplitude modulation (AM)
Preset Memory 15 stations
Frequency range 522 kHz to 1629 kHz (9 kHz step)
520 kHz to 1630 kHz (10 kHz step)
QBuetooth®Section
Version Bluetooth®2.1 + EDR
Output Class 2 (2.5 mW)
Communication Distance
Possible communication distance: Approximately 10 m *
Communication Method 2.4 GHz band FH-SS
Supported Profiles A2DP/AVRCP/SPP
* Possible communication distance
Measurement environment: Temperature 25 °C/
Height 1.0 m
Measuring in "MODE 1"
QMemory section
Memory size 2 GB
Media file format support MP3
Memory record
Bit rate 128 kbps
Memory recording speed 1x,
3x max (CD only)
From CD, MP3, USB recording file format MP3 (*.mp3)
QTerminals section
Microphone jack Mono, Ø 6.3 mm (2 Systems)
USB port
USB standard USB 2.0 full speed
Media file format support MP3 (*.mp3)
USB device file system FAT12, FAT16, FAT32
USB ripping
Bit rate 128 kbps
USB recording speed 1x, 3x max (CD only)
Recording file format MP3 (*.mp3)
AUX
Terminal Stereo, Ø 3.5 mm connector
Stereo, Pin jack
QGeneral
Power supply AC 220 V to 240 V, 50/60 Hz
Power consumption 330 W
Dimensions (W x H x D) 492 mm x 221 mm x 421 mm
Mass 7.1 kg
Operating temperature
range 0 °C to +40 °C
Operating humidity range 35% to 80% RH
(no condensation)
Power consumption in
standby mode 0.3 W (approximate)
Note:
1. Specifications are subject to change without notice.
Mass and dimension are appropriate
2. Total harmonic distortion is measured by the digital spec-
trum analyzer.
QSystem: SC-MAX370GSK Main Unit: SA-MAX370GSK
Speaker System: SB-MAX370GSK
QSystem: SC-MAX770GSK Main Unit: SA-MAX770GSK
Speaker System: SB-MAX770GSK

12

13
5 Block Diagram
5.1. System Control
SA-MAX370GS,SA-MAX770GS SYSTEM CONTROL (1/4) BLOCK DIAGRAM
TO SYSTEM CONTROL
BLOCK (2/4)
: CD AUDIO INPUT SIGNAL LINE : USB SIGNAL LINE
: TUNER/AUX AUDIO INPUT SIGNAL LINE
SOC
C1AB00004188
IC1001
FROM/TO AUDIO
MAIN P.C.B.
NOTE: “ * ” REF IS FOR INDICATION ONLY
Q1001
SWITCH
USB P.C.B.
+5V 1 USB5V
D- B
D+ B
USB PORT B
(REC/PLAY)
JK9002
2 USB B D-
3 USB B D+
D- B
D+ B 66 CN9001P9001
55 CN9001P9001
+5V 1 USB5V
D- A
D+ A
USB PORT A
(PLAY)
JK9001
2 USB A D-
3 USB A D+
D- A
D+ A 33 CN9001P9001
22 CN9001P9001
I/O EXPANDER
C0ZBZ0002175
IC1202
CD
OPEN/CLOSE
S1650
STOP/TUNE MODE
S1656
KEY B KEY B
ADIN0 34
GPIO6 32
POWER
S1500
KEY A 161 P1501P1801 254 P1600 1
P1602 9 P1650P1502
KEY A
DJ JOG A
DJ JOG B MULTI CONTROL
VR1600
BUTTON LEFT P.C.B.
BUTTON LEFT P.C.B.BLUETOOTH/NFC KIT
BUTTON RIGHT P.C.B.
MULTI CONTROL P.C.B.
MULTI CONTROL P.C.B.
GPIO8 73
GPIO9 74
VOLUME JOG P.C.B.
ILLUMINATION JOG P.C.B.
1813 P1500P1802
DJ JOG A 272 P1600P1502
BT TX 20 11
P1500 P1802 BT TX
12 1
P7701* P1504
BT HOST WAKE 22 9
P1500 P1802 BT HOST WAKE
10 3
P7701* P1504
BT RX 21 10
P1500 P1802 BT RX
11 2
P7701* P1504
NFC IRQ 28 3
P1500 P1802 NFC IRQ
310
P7701* P1504
BT UART RTS 25 6
P1500 P1802 BT UART RTS
76
P7701* P1504
BT LDO ON R 23 8
P1500 P1802 BT LDO ON R
94
P7701* P1504
1714 P1500P1802
DJ JOG B 263 P1600P1502
ILLUMI JOG A
ILLUMI JOG B ILLUMINATION
VR1930
GPIO1 14
GPIO2 15
413 P1501P1801
ILLUMI JOG A 68 P1932P1503
512 P1501P1801
ILLUMI JOG B 77 P1932P1503
VOL JOG A
VOL JOG B
VOLUME
VR1960
SSCS 25
SSDI 26
215 P1501P1801
VOL JOG A 410 P1932P1503
314 P1501P1801
VOL JOG B 59 P1932P1503 38 P1960P1930
47 P1960P1930
D1600,D1601
DJ JOG LED CTRL
1912 P1500P1802
DJ JOG LED CTRL 281 P1600P1502
+5V
QR1802
Q1802
LED DRIVE
LED DRIVE
KPX5
KPX2
26
36
KPY4 25
KPY10 3
EXIT100 4
KPY7 28
KPY3 9
KPY1 8
KPY0 7
PWM0 40
KPY9 5
KPX3 37
KPY5 KPX6 22
24
MIC DET1 MIC DET1
ANALOG SEL1 ANALOG SEL1
ANALOG SEL2 ANALOG SEL2
TUN RST TUN RST
DSP RESET DSP RESET
KPY2 10 DAMP MOD DA DAMP MOD DA
DSP MUTE DSP MUTE
MIC DET2 MIC DET2
MPORT DET MPORT DET
+
+
AC50
BD51
E54
F55
PD56
LDO57
TDOUT62
CLVOUT64
SDOUT63
GPIO531
GPIO329
GPIO430
SSDO28
SSCLK27
USBDP 98
USBDM 97
GPIO10 93
GPIO772
FODRV61
56
CN7002 P5001
OPEN SW
83
CN7002 P5001
CLOSE SW
SPM- 92
CN7002 P5001
SPM+ 10 1
CN7002 P5001
TRV+ 110
CN7002 P5001
TRV- 29
CN7002 P5001
LDM+ 38
CN7002 P5001
LDM-
LDM+
LDM- 47
CN7002 P5001
SPINDLEMOTOR
M7302*
TRAVERSE MOTOR
M7301*
CD INTERFACE P.C.B.
+3.3V
Q5001
LASER DRIVE
23VINLD
5CH MOTOR DRIVER
C0GBY0000213
IC5001
VOLD+17
VOLD-18
VOSL+11
VOSL-12
VOFC+14
VOFC-13
VOTK-16
VOTK+
F+
F-
T-
T+
CD-LD
MD/LPD
15
VOTR+10
VOTR-9
26VINTK
7REV
6FWD
23
P5002
24
P5002
21
P5002
22
P5002
6
P5002
5
P5002
OPEN SW
3
CN7001
CLOSE SW
1
CN7001
1VINFC
16
P5002
15
P5002
20
P5002
19
P5002
10
P5002
14
P5002
4VINSL+
OPTICAL
PICKUP UNIT
CD
LOADING P.C.B.
CLOSE SW
77
P9002 CN9002
USB REC LED USB REC LED
55
P9002 CN9002
USB PLAY LED USB PLAY LED
OPEN SW
74
CN7002 P5001
RESET SW RESET SW
5
CN7001 LDM+
4
CN7001 LDM-
SPM-
SPM+
TRV+
TRV-
CD MECHANISM UNIT
CD TRACKING SIGNAL
RESET
S7201
USB SWITCH
C0JBAS000401
IC9001
/OE 8
1D+ 5
1D- 4
2D+ 7
2D- 6
S10
D+1
D-2
UART0 RXD
101
UART0 TXD
102
GPIO19
117
UART0 RTS
103
BLUETOOTH
CIRCUIT
NFC
CIRCUIT
BLUETOOTH
DEVICE FREQUENCY
NFC
DEVICE FREQUENCY
DRV AMP MUTE DRV AMP MUTE
KPX1 11 AMP FHOP AMP FHOP
+5.4V
QR9003
LED DRIVE
Q9003
SWITCH
USB B
D9001
+5.4V
QR9002
LED DRIVE
Q9004
SWITCH
USB A
D9000

14
SA-MAX370GS,SA-MAX770GS SYSTEM CONTROL (2/4) BLOCK DIAGRAM
TO SYSTEM CONTROL
BLOCK (1/4)
TO SYSTEM CONTROL
BLOCK (3/4)
: CD AUDIO INPUT SIGNAL LINE : USB SIGNAL LINE
: TUNER/AUX AUDIO INPUT SIGNAL LINE
SOC
C1AB00004188
IC1001
1615 P1500P1802 FL1 DOUT
MSDI 22 FL1 DOUT 245 P1600P1502 292 P1700P1601
130 P1500P1802
REM IN 128 P1600P1502 130 P1700P1601
1516 P1500P1802 FL DATA
MSDO 24 FL DATA 236 P1600P1502 283 P1700P1601
1417 P1500P1802 FL CLK
MSCLK 23 FL CLK 227 P1600P1502 274 P1700P1601
RADIO/EXT-IN
S1660
D1662
D1660
D1658
D1656
D1536
D1534
D1532
D1530
D1528
D1526
PLAYBACK
S1658
FWD/SKIP
S1654
MEMORY
REC/PAUSE
S1652
USB/CD
BT/MEMORY
S1657
S1659
D1661
D1659
D1657
D1655
ALBUM/TRACK
S1655 D1652
REW/SKIP
S1653
USB
REC/PAUSE
S1651
K2
3
P1602 7 P1650
K1
K2
K1 4
P1602 6 P1650
6
P1601 25 P1700
7
P1601
24
P1700
K1
K2
K1
K2
MAIN P.C.B.
BUTTON LEFT P.C.B.
FL DISPLAY P.C.B.
BUTTON RIGHT P.C.B.
FL DISPLAY
DRIVER
C0HBB0000057
IC1700
DOUT
FL DATA
FL CLK
6
K2
11
K1
10
7
8
1318 P1500P1802 FL1 CS
MSCS 21 FL1 CS 218 P1600P1502 265 P1700P1601
1021 P1500P1802 FL2 CE
SD WP 2 FL2 CE 1019 P1600P1502 922 P1700P1601
FL CS
9
FL DISPLAY
DP1800
Q1800,Q1801
FL DISPLAY
CIRCUIT
+3.3V
REMOTE SENSOR
IR1701
REM IN
SG7/KS7 14 17
P1601 P1700
55
P1650 P1602
SG9/KS9 16 15
P1601 P1700
37
P1650 P1602
P1601 P1700P1650 P1602
SG8/KS8 15 1646
P1601 P1700P1650 P1602
SG10/KS10 17 1428
P1601 P1700P1650 P1602
SG11/KS11 18 1319
DJ SAMPLER
S1511
D1535
D1533
D1531
D1529
D1527
D1525
DJ EFFECT
S1510
DJ JUKEBOX
S1512
MEMORY 4
S1508
MEMORY 3
KEY-CON
S1504
MEMORY 1
VOCAL CANCEL
S1506
LOCAL
PRESET EQ
S1502
MEMORY 6
S1509
MEMORY 5
S1507
MEMORY 2
ECHO
S1505
MANUAL EQ
S1501
D.BASS
- SUPER WOOFER
S1503
K2
19 10
P1600 P1502
K1
K2
K1
SG6/KS6
SG5/KS5
SG4/KS4
SG3/KS3
SG2/KS2
SG1/KS1
20 9
P1600 P1502
13 18
P1601 P1700
16 13
P1502 P1600
P1601 P1700P1502 P1600
P1601 P1700P1502 P1600
P1601 P1700P1502 P1600
P1601 P1700P1502 P1600
P1601 P1700P1502 P1600
12 1915 14
11 2014 15
10 2113 16
92212 17
82311 18
4DAT1
2GB NAND
FLASH MEMORY
RFKWNAX770LM
IC2001
SD DAT15
3DAT0 SD DAT06
2DAT3 16DAT3 SD DAT39
5DAT2 SD DAT210
MUTLI CONTROL P.C.B.
16M
FLASH MEMORY
RFKWFAX370LM...SA-MAX370GS
RFKWFAX770LM...SA-MAX770GS
IC1003
FL CS
FL DAT1
1CS#
2DO(DQ1)
WP#(DQ2)
DI(DQ0)
CLK
HOLD#(DQ3)
88
FL DAT2386
FL DAT0591
FL CLK690
FL DAT3789
87
X1001
XIN PLL 127
XOUT PLL 128
X1002
XIN 32K 124
RCR 120
XOUT 32K 125 +12V
+5V
+3.3V
DP1700
FL DISPLAY
SEG12/KS12 ~ SEG13/KS13,SEG14 ~ SEG18
GR1 ~ GR9
F-
F+
F-
F+
35
1
F+ 2
F- 34
SEG1/KS1 ~ SEG11/KS11
SEG1/KS1 ~ SEG11/KS11

15
SA-MAX370GS,SA-MAX770GS SYSTEM CONTROL (3/4) BLOCK DIAGRAM
TO SYSTEM CONTROL
BLOCK (2/4)
TO SYSTEM CONTROL
BLOCK (4/4)
: CD AUDIO INPUT SIGNAL LINE : USB SIGNAL LINE
: TUNER/AUX AUDIO INPUT SIGNAL LINE
FOR SA-MAX370GS ONLY
FOR SA-MAX370GS ONLY
SOC
C1AB00004188
IC1001
FROM/TO AUDIO
BUTTON LEFT P.C.B.
KIRARI IN
KIRARI IN
SCL0 75
SDA0 76
KPX6 18
MAIN P.C.B.
VOLUME JOG P.C.B.
ILLUMINATION LEFT P.C.B.
ILLUMINATION RIGHT P.C.B.ILLUMINATION JOG P.C.B.
Z3
Z6
Z2
Z1
Z5
Z6 92 P1960 2
P1961 5 P1980P1930
Z5
83 P1960 3
P1961 4 P1980P1930
Z3
74 P1960 4
P1961 3 P1980P1930
Z2
65 P1960 5
P1961 2 P1980P1930
Z1
56 P1960 6
P1961 1 P1980P1930
Z1Z1 611 P1501P1801
Z4Z4 125 P1501P1801
Z2Z2 710 P1501P1801
Z3
Z3 89 P1501P1801
Z5Z5 98 P1501P1801
Z6
Z6 107 P1501P1801
Z7
Z7 116 P1501P1801
Z8
Z8 152 P1501P1801
Z9Z9 143 P1501P1801
Z1Z1 86 P1932P1503 Z1Z1 16 P1950P1931
Z2Z2 25 P1950P1931
Z5Z5 43 P1950P1931
Z6Z6 52 P1950P1931
Z7Z7 61 P1950P1931
Z2Z2 95 P1932P1503
Z3
Z3 104 P1932P1503
Z5Z5 113 P1932P1503
Z6
Z6 122 P1932P1503
Z7
Z7 131 P1932P1503
D1506 R1514,
D1522 R1510, D1520 R1506, D1518 R1502, D1507 D1543, D1544 D1547, D1548
R1524,
D1524
DJ JUKEBOX
D1505
MEMORY 3
D1503
MEMORY 2
D1501
MEMORY 1
D1508
DJ SAMPLER D1504
MEMORY 6 D1502 MEMORY 5 D1500 MEMORY 4 D1554 D1556
D1555
D1553
D1511
DJ EFFECT (RED)
D1551,
D1552
D1557
LED DRIVER
AN32183A-VF
IC1501
Z1
SCL
NRST
SDA
19
Z2 18
Z3 16
Z4 14
Z5 12
Z6 11
Z7 10
Z8 8
Z9 6
2
I/O EXPANDER
C0ZBZ0002175
IC1202
22
CLKIO20
3
D1950
D1953,
D1954 D1952, D1955
D1951
D1981
D1983,
D1984 D1982, D1985
D1980
1
P1501
Z1
4
P1501
Z4
3
P1501
Z3
2
P1501
Z2
SB-MAW370
SB-MAW370/
SB-MAX770
SB-MAY370/
SB-MAX770
SB-MAY370
1
P1503
Z1
4
P1503
Z4
3
P1503
Z3
2
P1503
Z2
1
P1502
Z4
4
P1502
Z7
3
P1502
Z6
2
P1502
Z5
1
P1504
Z4
4
P1504
Z7
3
P1504
Z6
2
P1504
Z5
SPEAKERS
I2C SCL
I2C SCL
I2C SDA
I2C SDA
D1510
DJ EFFECT (BLUE)
Z10
Z10 134 P1501P1801
Z10 5

16
SA-MAX370GS,SA-MAX770GS SYSTEM CONTROL (4/4) BLOCK DIAGRAM
TO SYSTEM CONTROL
BLOCK (3/4)
: CD AUDIO INPUT SIGNAL LINE : USB SIGNAL LINE
: TUNER/AUX AUDIO INPUT SIGNAL LINE
SOC
C1AB00004188
IC1001
TUN INT
TUN WCK
DSP WCK
TUN INT
TUN SDO
TUN SDO
FROM/TO
POWER SUPPLY
FROM/TO
POWER SUPPLY
FROM AUDIO
FROM/TO AUDIO
QR1201
SWITCH
PWM2 43
KPY11 2
PWM1 42 FAN OUT
DC DET AMP
FAN UNIT (SMPS)SMPS P.C.B.
FAN CONTROL
C0ABBB000342
IC8501
Q8509,Q8510,Q8511
Q8506,Q8507,Q8508
Q8501,Q8502,Q8503
Q8504,Q8505
+15V
POSITIVE
NEGATIVE
CN1852
CN1852
+
-
2
1
FAN UNIT (FRONT RIGHT)
POSITIVE
NEGATIVE
P8502
P8502
+
-
2
1
FAN UNIT (REAR MIDDLE)
POSITIVE
NEGATIVE
P8503
P8503
+
-
2
1
FAN
CONTROL
CIRCUIT
MAIN P.C.B.
RESETX 1
LRCKO183
TUN BCK
DSP BCK
BCKO182
DSP MCK
DATAO181
DSP SDO0
MCLKO177 I/O EXPANDER
C0ZBZ0002175
IC1202
DC DET AMP DC DET AMP
DC DET AMP DC DET AMP
NRST NRST
SMPS BP SMPS BP
PX4 23 USB A PCONT USB A PCONT
TUN WCK
DSP WCK
6 SCL
5 SDA
33 SDA
32 SCL
27 RESET
39 IRQN
EEPROM
RFKV5033KB...SA-MAX370GS
RFKV5033DB...SA-MAX770GS
IC1004
SCL1
SDA1
118
119
22
CN8001 CN1851
POSITIVE
11
CN8001 CN1851
NEGATIVE
GPIO16 108
GPIO18
116
USB OVC
USB OVC
DATAI1
112
LRCKI1
110
TUN BCK
PCONT
PCONT
DSP BCK
DSP MCK
DSP SDO0
USB B PCONT GPIO1194
GPIO1295
TEMP DET
TEMP DET ADIN539
PDET +40V
PDET +40V GPIO013
SYNC
SYNC
USB B PCONT
BCKI1
111
GPIO13
105
GPIO17
109
PDET
PDET GPIO15
107
PCONT2
PCONT2 GPIO14
106
PCONT3
PCONT3 BCK12
114
DATA12 115

17
5.2. Audio
SA-MAX370GS,SA-MAX770GS AUDIO (1/2) BLOCK DIAGRAM
1
2
3
4
5
6
TO AUDIO
BLOCK (2/2)
: TUNER/AUX/MIC AUDIO INPUT SIGNAL LINE : AUDIO OUTPUT SIGNAL LINE: CD AUDIO INPUT SIGNAL LINE : FM SIGNAL LINE: AM SIGNAL LINE
4
3
JK4951
Y34
Y22
AUX IN 1 (RCH)
AUX IN 2 (RCH)
AUX IN 3 (RCH)
AUX IN 1 (LCH)
AUX IN 2 (LCH)
AUX IN 3 (LCH)
7
Y01
6
L
M
H8
5
X311
X215
3
X012
2
L
M
H4
1
FOR SA-MAX370GS
FOR SA-MAX770GS
FOR SA-MAX770GS
42 XO
41 XI
X4001
7
8
5
DSP
VUEALLPT090
IC4005
MAIN P.C.B.
MIC P.C.B.
SELECTOR
C0JBAR000367
IC4901
A10
ANALOG SEL1 ANALOG SEL1
QR4901
SELECTOR
SWITCH
B9
ANALOG SEL2 ANALOG SEL2
TUN INT
TUN WCK
QR4902
SELECTOR
SWITCH
Q4006
MUTING
Q4005
MUTING
Q4001
MUTING
Q4002
MUTING
Q4003
MUTE
Q4004
MUTE
FM ANT
JK7001 FM/AM RADIO
RECEIVER
VUEALLPT087
IC7001
2 FMI
SCLK
GPIO2 18
DOUT 13
DFS 14
LIN 15
RIN 16
DCLK 17
SDIO
RST
JK7002 L7002
4
6
3
1
2
4 AMI2
1
AM ANT
8 SDIN1
10 BCK
4
SDA 5 SCL
9 LRCK
FROM/TO
SYSTEM CONTROL
FROM/TO
SYSTEM CONTROL
R
L
AUX IN 4
JK1402
3
2
1
6
7
5
4
A/D
CONVERTER
C0FBAY000032
IC4802
13 AINL
14 AINR
14 X1
5Y1
3 COM Y
13 COM X
SDTO 9
MCLK 6
LRCK 7
SCLK 8
BUFFER AMP
C0ABBB000230
IC4002
2 A-INPUT
5 B+INPUT
3 A+INPUT
6 B-INPUT
A OUTPUT 1
B OUTPUT 7
88
CN1401 P1803 MIC IN
MIC IN
11
CN1401 P1803 MPORT DETMPORT DET
44
CN1401 P1803 MPORT IN RMPORT IN R
22
CN1401 P1803 MPORT IN LMPORT IN L
TO SYSTEM CONTROL
FROM/TO
SYSTEM CONTROL
MPORT DET
DSP SDO0
DSP BCK
DSP WCK
DSP MCK
I2C SCL
QR4001,
QR4002
MUTING
CONTROL
CIRCUIT
I2C SDA
TUN INT
TUN WCK
TUN BCK
TUN BCK
TUN SDO
I2C SCL
TUN RST
TUN SDO
TUN RST
2
RST N DSP RESET
DSP RESET
DRV AMP MUTE
DRV AMP MUTE
32
PWM3A KIRARI IN
KIRARI IN
3
SMUTE DSP MUTE
DSP MUTE
I2C SDA
PWM4A 34
PWM4B 33
BUFFER AMP
C0ABBB000230
IC4001
2 A-INPUT
5 B+INPUT
3 A+INPUT
6 B-INPUT
A OUTPUT 1
B OUTPUT 7
PWM2B 29
PWM1A 28
PWM1B 27
PWM2A 30
+5V
Q4005
MUTING
Q4006
MUTING
6 SDIN3
17
SDA 16 SCL
11 IC N
DSP RESET2
19 IRQ N
DSP ERR
45SDO07 SDI0
8 BCK IN
9 WCK IN
5 SDI1
43BCK
44WCK
48 MCK OUT
14 XOUT
13 XIN
X4801
DIGITAL AMPLIFIER
C1AB00003800
IC4803
77
CN1401 P1803 MIC DET2
MIC DET2 66
CN1401 P1803 MIC DET1
MIC DET1 MIC DET1 TO SYSTEM CONTROL
MIC DET2
MIC
CIRCUIT
MIC VOL 2
VR1400
MIC 2
JK1403
3
2
1
7
8
5
4
MIC
AMPLIFIER
C1AB00003130
IC1401
MIC
AMPLIFIER
C1AB00003130
IC1400
MIC
CIRCUIT
MIC VOL 1
VR1401
MIC 1
JK1401
3
2
1
7
8
5
4

18
SA-MAX370GS,SA-MAX770GS AUDIO (2/2) BLOCK DIAGRAM
2
1
4
6
3
5
TO AUDIO
BLOCK (1/2)
: TUNER/AUX/MIC AUDIO INPUT SIGNAL LINE : AUDIO OUTPUT SIGNAL LINE: CD AUDIO INPUT SIGNAL LINE : FM SIGNAL LINE: AM SIGNAL LINE
-
+
3
JK4201
4
JK4201
-
+
1
JK4201
2
JK4201
-
+
7
JK4201
8
JK4201
-
+
5
JK4201
6
JK4201
-
+
11
JK4201
12
JK4201
-
+
9
JK4201
10
JK4201
SUBWOOFER LEFT
(6ȍ)
LEFT LOW
SUBWOOFER RIGHT
(6ȍ)
RIGHT LOW
SUBWOOFER RIGHT
(3ȍ)
RIGHT MID LOW
SUBWOOFER LEFT
(3ȍ)
LEFT MID LOW
FRONT RIGHT
(3ȍ)
RIGHT HIGH
FRONT LEFT
(3ȍ)
LEFT HIGH
SPEAKERS
FOR SA-MAX370GS
FOR SA-MAX770GS
FOR SA-MAX370GS
FOR SA-MAX770GS
FOR SA-MAX370GS
FOR SA-MAX770GS
FOR SA-MAX370GS
FOR SA-MAX770GS
FOR SA-MAX370GS
FOR SA-MAX770GS
FOR SA-MAX370GS
FOR SA-MAX770GS
MAIN P.C.B.
31
2
5
6
AMPLIFIER
Q4502
21L04
28H04
27VS4
3 4
AMPLIFIER
Q4501
31
2
5
6
AMPLIFIER
Q4503
22L03
25H03
26VS3
3 4
AMPLIFIER
Q4504
31
2
5
6
AMPLIFIER
Q4507
16L02
9H02
10VS2
34
AMPLIFIER
Q4508
31
2
5
6
AMPLIFIER
Q4505
15L01
12H01
11VS1
34
AMPLIFIER
Q4506
+3.3V
-5V
QR4203 QR4201
SWITCH SWITCH
D4509
D4209
DAMP MOD DA DAMP MOD DA
48 CSD
48 CSD
AMP FHOP AMP FHOP
QR4202
SWITCH
AUDIO
AMPLIFIER DRIVER
C0ZBZ0001673
IC4501
38 IN3
46 IN1
40 IN4
44 IN2
31
2
5
6
AMPLIFIER
Q4202
21L04
28H04
27VS4
34
AMPLIFIER
Q4201
31
2
5
6
AMPLIFIER
Q4203
22L03
25H03
26VS3
3 4
AMPLIFIER
Q4204
31
2
5
6
AMPLIFIER
Q4207
16L02
9H02
10VS2
34
AMPLIFIER
Q4208
31
2
5
6
AMPLIFIER
Q4205
15L01
12H01
11VS1
34
AMPLIFIER
Q4206
AUDIO
AMPLIFIER DRIVER
C0ZBZ0001673
IC4202
38 IN3
40 IN4
44 IN2
46 IN1
X4202
X4201
D4218 D4219
39 COMP4
47 COMP1
39 COMP4
47 COMP1
45 COMP2
37 COMP3
45 COMP2
37 COMP3
10 5Y
84Y
94A
11 5A
13 6A
42Y
53A
63Y
32A
21Y
11A
12 6Y
OSCILLATOR AMP
C0JBAB000902
IC4201
FROM SYSTEM CONTROL
TO SYSTEM CONTROL
Q4509
Q4510
DC DETECT
CIRCUIT DC DET AMP
DC DET AMP
Q4209,Q4210
DC DETECT
CIRCUIT
1 CTRL
4VD
5OS
TEMPERATURE
SENSOR
C0ZBZ0001675
IC4502
1 CTRL
4VD
5OS
TEMPERATURE
SENSOR
C0ZBZ0001675
IC4203
QR4501,QR4502
DC DETECT
CIRCUIT

19
5.3. Power Supply
SA-MAX370GS,SA-MAX770GS POWER SUPPLY (1/2) BLOCK DIAGRAM
TO POWER SUPPLY
BLOCK (2/2)
3
5
4
6
7
8
9
10
11
12
1
2
PW -29V -29V
PW XSW3R3V +3.3V
PW SOC 1R5V +1.5V
+5.4V
SYNC
PCONT
SYNC
TEMP DET TEMP DET
PCONT2
PCONT3
PCONT
SMPS BP
DC DET AMP
SMPS BP
FROM/TO
SYSTEM CONTROL
FROM
SYSTEM CONTROL
FROM
SYSTEM CONTROL
FROM
SYSTEM CONTROL
MAIN P.C.B.
Q4511
SWITCH
DC DET AMP
PCONT3
PCONT2
PW -29V
TO
SYSTEM CONTROL
D4520
D4521D4518
PW SYS3R3V PW +3.3V
IC8009
DC-DC
CONVERTER
C0DBCYY00142
6 VIN
5 CTRL
SW 4
FB 1
PW +15V
PW +15V
PW SW12R0V
PW FL SW9V PW FL SW9V
IC8007
+12V VOLTAGE
REGULATOR
C0DBEYY00146
3 VIN
5EN VO 1
FB 4
IC8010
+9V VOLTAGE
REGULATOR
C0CBCYG00004
2EN
1 VIN
VO 3
FB 4
PW SYS3R3V PW SOC 1R5V
IC8001
+1.5V VOLTAGE
REGULATOR
C0DBGYY00911
4 VIN
1CN
VO 3
PCONT
PDET
PW +5V
PW SW5R4V
PW SW3R3V
PW SW12R0V
PW SW15R0V
3
2
AC INLET
P1001
F1501
F1401
DZ1001
8,9,108,9,10 P4501CN1853
88 CN8001CN1851
-B (-40V) -B (-40V)
1,2,31,2,3 P4501CN1853
+B (40V) +B (40V)
PW +40V
PW -40V
77 CN8001CN1851
SYS3.3V SYS3.3V PW XSW3R3V
SWITCHING MODE POWER
SUPPLY CONTROL
MIP2F20MSSCF
IC1402
SHUNT
REGULATOR
C0DAZYY00039
IC1701
TRANSFORMER
T1401
TRANSFORMER
T1502
D1402
D1104
D1208
D1105
D1001
D1601
D8009
D8001
D8003
D1403
D1404
D1406
D1405
D1702
D1706
D1704
D1703
D1705
FEEDBACK
CIRCUIT
FEEDBACK
CIRCUIT
SYNC
CIRCUIT
SYNC
QR1601
PCONT
SWITCH
Q1801
AM
BEATPROOF
CIRCUIT
Q1402
SWITCH
Q1502
SWITCH
Q1501
SWITCH
Q1101
SWITCH
Q1103
SWITCH
NPD
NP
3
4
2
1
Q1405
PCONT
SWITCHING
REGULATOR
C0DBBYY00077
IC1501
PFC CONTROL
C0DBBYY00075
IC1101
FB
SYNC
PCONT
TEMP DET 1313 CN8001CN1851 TEMP DET
44 CN8001CN1851
PCONT
SMPS BP
33 CN8001CN1851
SMPS BP
L1001
4
1
3
2
4
1
L1002
SMPS P.C.B.
5
VC1 1
CS1 7
VGL 11
VGH 16
VSEN 2
VS 15
CS2 8
VB 14
VC2 10
VCC 8
FB 1
OUT 7
OCL 4
Z/C 5
IL OUT 3
PFC CONTROL
C0DBBYY00076
IC1202
VCC 8
FB 1
6
311
15
12
9
16
13
TRANSFORMER
T1501
6
3
PFC
INDUCTOR
T1101
75
13
16
9
13
15
11
12
FB 2
VDD 1
D5
VCC 4
CL 3
5
6
3
2
7
8
10
9
D1502
D1101
Q1203
SWITCH
Q1204
SWITCH
NPD
NP
OUT 7
OCL 4
Z/C 5
GND 6
PFC
INDUCTOR
T1203
75
13
D1207
D1206
D1503
SECONDARYPRIMARY
Q1505
SHUNT
REGULATOR
C0DAZYY00039
IC1601
Q1404
Q1403,Q1702
9,109,10 CN8001CN1851
15V 15V
F1001
PW -40V -40V
PW +40V +40V
Q8003
PW BT SW5R4V
SWITCH
QR8006
PCONT
Q8001
PW FL SW12V
SWITCH
QR8001
PCONT
PW SW3R3V
+5.4V
+5.4V
+5.4V
IC8003
+3.3V DC/DC
CONVERTER
C0DBAYY01685
8 PVIN
7 AVIN
SW 2
FB 4
5EN
PW SW5R4V
PW SW5R4V
+5.4V
PW CD SW5R4V
+3.3V
+12V
+15V
PW +15V
IC8005
+5.4V DC/DC
CONVERTER
C0DBAYY01094
2 VIN
SW 10
VREF 7
BOOT 1
3EN
PW +5V
PW +15V
IC8004
+5V DC/DC
CONVERTER
C0DBAYY01094
2 VIN
SW 10
VREF 7
BOOT 1
3EN
IC8011
+3.3V VOLTAGE
REGULATOR
C0CBCYG00004
PW +15V
PW +15V
PW +3.3V
1 VIN
VO 3
FB 4
2EN D8013

20
SA-MAX370GS,SA-MAX770GS POWER SUPPLY (2/2) BLOCK DIAGRAM
TO POWER SUPPLY
BLOCK (1/2)
3
5
4
7
1
2
10
9
6
8
11
12
MAIN P.C.B.
PW +9V F-
F+
-VP
F-
F+
-VP
SWITCHING
TRANSFORMER
T1700
Q1700
-VP
F+
F-
FL DISPLAY
VOLTAGE SUPPLY
CIRCUIT
NRSTPW XSW3R3V
IC1002
VOLTAGE
DETECTOR
C0EBE0000338
2 VIN VOUT
1
AMP -5V -5V
PW SW5R4V
PW SW5R4V
IC4003
VOLTAGE
CONVERTER
C0DBCZC00003
8V+
1FC
2 CAP+
4 CAP-
OUT 5
IC8002
HIGH
SIDE SWITCH
C0DBZYY00716
FROM/TO
SYSTEM CONTROL
TO SYSTEM CONTROL
TO SYSTEM CONTROL
TO SYSTEM CONTROL
USB P.C.B.
MIC P.C.B.
BLUETOOTH/NFC KIT
VOLUME JOG P.C.B.
5 VIN VO 1 USB A SW5R1V
USB A PCONT
USB OVC
USB A PCONT
USB B PCONT
USB B PCONT
USB OVC
+5V
4EN
3 FLAG
IC8008
HIGH
SIDE SWITCH
C0DBZYY00716
5 VIN
VO 1 USB B SW5R1V
+5V
4EN
3 FLAG
USB5V +5V
+12V +12V
+3.3V +3.3V
+3.3V +3.3V
+3.3V +3.3V
+3.3V +3.3V
+3.3V +3.3V
+12V +12V
+3.3V +3.3V
+5V +5V
44 CN9002P9002
USB A 5R2V USB A 5R2V
99 CN1401P1803
PW SW12R0V PW SW12R0V
110 P1960P1930 PW SW3R3V
427 P1700P1601 PW SW3R3V
USB5V +5V
33 CN9002P9002
USB B 5R2V USB B 5R2V
NOTE: “ * ” REF IS FOR INDICATION ONLY
D8011
D8004D8008D8010
QR8004
DC DETECT
PDET PDET
PCONT
PDET
PW +5V
PW SW3R3V
PW XSW3R3V
PW BT SW5R4V
PW SW5R4V
PW SW12R0V
QR8005
DC DETECT
PW -40V
PW +40V
D8012
QR8003
DC DETECT
PDET +40V
PDET +40V
+5V
AMP +5V
NRST
BUTTON LEFT P.C.B.
PW STBY3R3V
229 P1500P1802
PW STBY3R3V PW STBY3R3V 49 P7701*P1504
PW STBY3R3VPW STBY3R3V
BT 5V
247 P1500P1802
BT5V BT5V 85 P7701*P1504
PW FL SW9V PW SW9VPW SW9V
6,724,25 P1500P1802
PW SW9V PW SW9V
6,722,23 P1600 25,26
P1601 5,6 P1700P1502
PW FL SW12V PW FL12VPW FL12V
1120 P1500P1802
PW FL12V PW FL12V
1118 P1600 21
P1601 10 P1700P1502
+5V +5V
PW SW5VPW SW5V
1219 P1500P1802
PW SW5V PW SW5V
1217 P1600 20
P1601 11 P1700P1502
227 P1600P1502 229 P1700P1601
ILLUMINATION JOG P.C.B.
FL DISPLAY P.C.B.
MULTI CONTROL P.C.B.
PW SW3R3V
526 P1500P1802
PW SW3R3V PW SW3R3V
311 P1932P1503
PW SW3R3V
524 P1600P1502
PW SW3R3V
PW SW3R3V
PW 1R8V
IC4801
+1.8V VOLTAGE
REGULATOR
C0DBGYY03252
4 VIN
1CN
VO +1.8V +1.8V
3