Pioneer MUH-GA25VB, MUH-GA35VB, MUH-GA20VB service manual Outdoor deicer P.C. board

Page 28

10-5. Test point diagram and voltage

MUH-GA20VB - E1

MUH-GA25VB - E1

MUH-GA35VB - E1

Outdoor deicer P.C. board

CN711

CN721

Outdoor fan motor

R.V. coil

230V AC

230V AC

}

}

5V DC

J205 +

J101 --

12V DC

J204 +

J101 --

Power supply input 230V AC

}

 

 

 

 

 

 

 

 

 

 

 

 

NR61

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Varistor

 

 

 

 

 

 

 

 

 

 

 

 

F61

 

 

 

 

 

 

 

 

 

 

 

 

Fuse

 

 

 

 

 

 

 

 

 

 

 

 

2A/250V

 

 

 

 

 

 

 

 

 

 

 

 

R601

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

--+}5~10VDC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Defrost interval time

 

 

 

 

 

 

 

 

 

 

 

short pin

 

 

 

 

 

 

 

 

 

 

 

(JPDS, JPSG)

 

 

 

 

 

 

 

 

 

 

 

(Refer to 9-1.)

 

 

 

 

 

 

 

 

 

 

 

 

Jumper wire for

 

 

 

 

 

 

 

 

 

 

 

 

change in

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

}defrost setting

}

 

 

 

 

 

 

(JRF,JRG)

 

 

CN661 1-2

 

(Refer to 9-2.)

 

 

Defrost thermistor RT61

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28

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Contents Contents MUH-GA20VB E1 MUH-GA25VB E1 MUH-GA35VB E1Technical Changes MUH-A07YV- E1 MUH-GA20VB- E1MUH-A09YV- E1 MUH-GA25VB- E1 MUH-A12YV- E1 MUH-GA35VB- E1Information for the AIR Conditioner with R410A Refrigerant Refrigerant piping Refrigeration oil Specification Part Names and FunctionsNoise Criteria Curves MUH-GA20VBMUH-GA25VB MUH-GA35VBOutlines and Dimensions MUH-GA20VB E1 Outdoor Unit MUH-GA25VB E1 MUH-GA35VB E1Wiring Diagram Models Wiring DiagramRefrigerant System Diagram UnitmmMAX. Refrigerant Piping Length Performance CurvesMAX. Height Difference Indoor Unit Outdoor Unit Capacity and the Input CurvesMUH-GA20VB E1 Heat operation MSC-GA20VB E1 MUH-GA20VB E1701 744 758 729 765 787 801 815 822 840 851 869 MSC-GA25VB E1 MUH-GA25VB E1Outdoor MSC-GA35VB E1 MUH-GA35VB E11068 1134 1155 1112 1166 1199 1221 1243 1254 1281 1297 1324 Performance Data Heat operation Service Functions TroubleshootingInstruction of troubleshooting Check of outdoor unit Check of R.V. coil How to check mis-wiring and serial signal error Check of outdoor thermistor Outdoor deicer P.C. board Disassembly Instructions Terminal with locking mechanism Detaching pointsOperating Procedure Photos Removing the deicer P.C. board PhotoPhotos Parts List Outdoor Unit Structural PartsOutdoor FAN Motor Page Page New publication, effective Feb

MUH-GA20VB, MUH-GA25VB, MUH-GA35VB specifications

The Pioneer MUH-GA25VB, MUH-GA35VB, and MUH-GA20VB are a trio of advanced multimedia head units designed to enhance the in-car experience with a blend of cutting-edge technology and user-friendly features. Each model offers a unique set of functionalities tailored to meet varying needs and preferences, while maintaining high standards in audio performance and connectivity.

The MUH-GA25VB serves as a versatile entry point into Pioneer’s lineup. It features a sleek 6.2-inch touchscreen display that provides intuitive controls and easy access to music and navigation. With Bluetooth connectivity, users can enjoy hands-free calling and wireless audio streaming, enhancing safety and convenience on the road. The built-in FM/AM tuner and compatibility with USB and AUX sources allow for diverse listening options. Moreover, the MUH-GA25VB supports various audio formats, ensuring playback flexibility.

Stepping up, the MUH-GA35VB incorporates enhanced sound tuning features, including a 13-band graphic equalizer that allows users to tailor audio output to their liking. The larger 7-inch touchscreen provides an immersive interface, making navigation through multimedia content seamless. This model also supports Apple CarPlay and Android Auto, enabling users to integrate their smartphones for a more connected experience. The voice control feature allows for hands-free operation of navigation and music, making it an ideal choice for tech-savvy drivers.

At the top of the range, the MUH-GA20VB boasts superior connectivity and sound quality. It is equipped with a high-resolution audio playback capability, supporting formats up to 192 kHz/24-bit for audiophiles seeking the best sound fidelity. With dual USB ports, users can connect multiple devices simultaneously, allowing for easier management of music and charging. The hardware enhancements include high-performance DACs that result in clearer and more detailed audio reproduction. Furthermore, this model features a customizable interface, enabling users to tailor the look of the head unit to match their vehicle’s interior.

Collectively, the Pioneer MUH series – MUH-GA25VB, MUH-GA35VB, and MUH-GA20VB – presents a compelling case for anyone looking to upgrade their vehicle’s audio and multimedia capabilities. They combine sophisticated technology with user-centric designs, ensuring a remarkable in-car experience that caters to a diverse range of audiophiles and tech enthusiasts alike. Whether you prioritize straightforward functionality or advanced features, there is a model in this lineup to suit every taste and requirement.